Top Read Articles

Published in last 1 year |  In last 2 years |  In last 3 years |  All

Please wait a minute...


For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails

Select

Carbon sink of forest ecosystems: Concept, time effect and improvement approaches ZHU Jiaojun, GAO Tian, YU Lizhong, YANG Kai, SUN Tao, LU Deliang, LIU Zhihua, CHU Yingdong, ZHANG Jinxin, TENG Dexiong, ZHU Yuan, SUN Yirong, WANG Xugao, WANG Gaofeng Chinese Journal of Applied Ecology    2024, 35 (9): 2313-2321.   DOI: 10.13287/j.1001-9332.202409.025 Abstract （650）      PDF（pc） （2007KB）（38）       Knowledge map    Save The widespread utilization of fossil fuels has emitted large amounts of CO2 into the atmosphere since the Industrial Revolution, leading to climate warming and frequent occurrence of extreme climate events. To effectively alleviate climate change, the international community has made various efforts to reduce carbon emissions and eliminate CO2 from the atmosphere. In 2020, the Chinese government announced that carbon emission peaking and carbon neutrality will be achieved by 2030 and 2060, respectively. According to the current forecast, by the time carbon neutrality is achieved in 2060, even under the minimum conditions of fossil energy use, production, and living emissions, China will still have to emit about 1/4 of the current total emissions. These carbon must primarily be absorbed by ecosystems. Furthermore, approximately 140 ppm increase in CO2 in the atmosphere since the Industrial Revolution still needs to be removed by ecosystems. Forests are the main component of terrestrial ecosystems, contributing more than 80% of the carbon sequestration capacity of all terrestrial ecosystems. However, due to the long periodicity, complexity and dynamic variability of forests, the basic concepts of ecosystem carbon sink and its time effect are still unclear, leading to problems, such as lacking technologies for improving carbon sink capacity and disorganized rules in the carbon sink trading market. In this review, we introduced carbon sink concept according to the processes of absorbing and fixing CO2 by plant photosynthesis in forest ecosystems. Then, we analyzed the processes of time-scale-dependent carbon sinks of forest ecosystems, discussed the time effects of forest carbon sinks, and suggested using “t-year” as the unit of carbon sink (taking 3-6 months as the minimum measurement time, i.e., the beginning of carbon sequestration). Third, we proposed the approaches to improve the carbon sink capacity of forest ecosystems. One way is to improve the carbon sink capacity (expanding forest area, improving forest quality, and increasing forest soil carbon storage) of forest ecosystems. Another approach is to maintain the carbon sink of forest ecosystems as long as possible, i.e., to reduce temporary carbon sink (definition: carbon in the forest ecosystems emit into the atmosphere for a certain period) and to increase persistent carbon sink (definition: carbon in the forest ecosystems no longer emit into the atmosphere for a certain period; according to the relevant provisions of the Paris Agreement, the upper time limit for carbon sink measurement can be considered to be the year 2100. In order to maintain the persistent carbon sink, strateges such as efficient use of wood products (replace steel, cement, plastic with wood), control of forest fires or other disturbances-induced emissions, and turning forest biomass into biochar should be taken. Finally, we proposed to develop climate-smart forestry driven by artificial intelligence (AI), which would provide new theoretical and technical support for improving the carbon sink of forest ecosystems and facilitating sustainable forest management. Reference | Related Articles | Metrics | Comments（0）

Select

Responses of radial growth of different tree species to abrupt temperature change in the northern Greater Khingan Mountains, China QIU Yang, WANG Zhaopeng, ZHANG Dongyou, LI Xiangyou, LUO Taoran, WANG Xinrui, LI Linlin, ZHAO Yueru Chinese Journal of Applied Ecology    2024, 35 (11): 2933-2941.   DOI: 10.13287/j.1001-9332.202411.001 Abstract （435）      PDF（pc） （3409KB）（6）       Knowledge map    Save We constructed standardized chronologies of tree-ring width of Larix gmelinii and Pinus sylvestris var. mongolica, the main tree species in the Mangui region of the northern Greater Khingan Mountains based on dendrochronology methods, we explored the responses of radial growth of the two species to climate change. The results showed that the radial growth of L. gmelinii was mainly limited by temperature, which was significantly negatively related to mean temperature in October of the last year and that in March and May-August of the present year. The radial growth of P. sylvestris var. mongolica was promoted by both temperature and precipitation, which was significantly positively related to precipitation in May of the present year and temperature in October of the last year and May-September of the present year. We analyzed temperature data from 1960 to 2021 in the Mangui region using the Mann-Kendall test, and found that mean annual temperature of the region had a warming abrupt change in 1988. L. gmelinii radial growth showed a decreasing trend both before and after the abrupt temperature change, and the downward trend of its radial growth increased slightly after the abrupt change. Radial growth of P. sylvestris var. mongolica changed significantly, with a decreasing trend before the abrupt change and a significant increasing trend after the abrupt change. The response to temperature was enhanced after the abrupt change, with a remarkable positive relationship with the monthly average minimum temperature in May of the present year. The analysis of sliding relationship showed that the sensitivity of L. gmelinii radial growth to climatic factors changed first to increase and then to weaken, and that of P. sylvestris var. mongolica radial growth gradually increased. Reference | Related Articles | Metrics | Comments（0）

Select

Research advance in the effects of litter input on forest soil organic carbon transformation and stability GUO Xiaowei, ZHANG Yuxue, YOU Yeming, SUN Jianxin Chinese Journal of Applied Ecology    2024, 35 (9): 2352-2361.   DOI: 10.13287/j.1001-9332.202409.033 Abstract （420）      PDF（pc） （968KB）（21）       Knowledge map    Save The turnover and stabilization of soil organic carbon are tightly associated with the properties of litter input. Due to the complexity of litter decomposition and the high heterogeneity of forest soils, there are considerable uncertainties about how soil minerals, microorganisms, and environmental factors jointly regulate the transformation and stability of litter-derived soil organic carbon. Here, we present an overview of the “microbial efficiency-matrix stabilization” framework centered on microbial metabolism and organic carbon transformation, as well as the new “microbial carbon pump” and “mineral carbon pump” theories in forest soil organic carbon transformation and stabilization. We specifically highlighted a differential mechanism of “organo-organic interfaces” from the “organo-mineral interfaces” in the effects on soil organic carbon accumulation. We further expounded the transformation processes and stability of soil organic carbon based on the “carbon material cycling” and “energy fluxes”, aiming to provide theoretical support for the research on carbon sequestration in forest soils. Reference | Related Articles | Metrics | Comments（0）

Select

Current status and research prospects of terrestrial ecosystem carbon sink in Northeast China WANG Xugao, LYU Xiaotao, XI Fengming, LIU Zhihua, LIANG Yu, GAO Tian, SUN Tao, YU Dapao, WANG Chao, MA Qiang, LIANG Chao, ZHENG Tiantian, WANG Jiaoyue, YIN Yan, JIAO Kewei, LIU Bo, ZHU Jiaojun Chinese Journal of Applied Ecology    2024, 35 (9): 2322-2337.   DOI: 10.13287/j.1001-9332.202409.006 Abstract （417）      PDF（pc） （2326KB）（21）       Knowledge map    Save Increasing the carbon sink capacity of terrestrial ecosystems is a primary strategy to mitigate climate change and achieve the “carbon neutrality” goal. Clarifying the status and future dynamics of carbon sink of terrestrial ecosystems in Northeast China is crucial for achieving “carbon neutrality” as this region is a core contributor to carbon sink in China's terrestrial ecosystems. Here, we systematically summarized current research on carbon sink of terrestrial ecosystems across Northeast China, including the measurements and spatial-temporal patterns of carbon sinks, driving mechanisms of carbon sinks, the assessments of carbon sink potential, and technologies for increasing carbon sequestration. There are substantial uncertainties in quantifying terrestrial ecosystem carbon sink in Northeast China due to differences in data sources and methods, especially for forest carbon sink measurements, ranging from 0.020 to 0.157 Pg C·a-1. Carbon sink function depends on carbon exchange processes across plant-soil-atmosphere interfaces. The key pathways to enhance carbon sequestration in Northeast China under different temporal and spatial scales remains unclear. Improving terrestrial ecosystem quality is the key and core of carbon sequestration and sink enhancement. However, there is an urgent need to develop a multi-ecosystem collaborative carbon sequestration and sink enhancement technology system for the “dual carbon” goal. Future research needs to develop an accurate carbon sink measurement system that integrates multi-source data and multi-scale technologies to accurately assess the function and potential of carbon sink in Northeast China, focus on the multi-scale driving mechanism of carbon sink functions, develop new technical systems for coordinated enhancement of carbon sink for the Northeast terrestrial ecosystems, and carry out demonstrations of carbon sink enhancement technologies. These efforts will provide the scientific and technological supports for achieving the “carbon neutrality” goal. Reference | Related Articles | Metrics | Comments（0）

Select

Responses of radial growth of Fraxinus mandshurica from different provenances to climate at Maoershan in Northeast China DU Yingjun, LI Shijie, WANG Li, YANG Shuai, JIA Xinying, TIAN Guangyu, ZENG Fansuo, XIN Ying Chinese Journal of Applied Ecology    2024, 35 (5): 1159-1168.   DOI: 10.13287/j.1001-9332.202405.004 Abstract （383）      PDF（pc） （4462KB）（42）       Knowledge map    Save To understand the responses of radial growth of Fraxinus mandshurica from different provenances to climatic factors, we used the dendrochronological method to establish the standard chronologies of F. mandshurica from 20 provenances in Maoershan provenance test forest, and analyzed the differences in radial growth and their correlation with climate factors. The results showed that the overall trend of F. mandshurica chronologies from 20 provenances was generally similar. There were differences in growth amplitude, with the average radial growth of F. mandshurica from Dailing, Lushuihe and Sanchazi being the highest. The radial growth of F. mandshurica from 20 provenances was significantly positively correlated with the highest temperature in July and the average temperature in July except for Huinan. The radial growth of F. mandshurica from 14 provenances was significantly positively correlated with the precipitation in August. The radial growth of F. mandshurica was constrained by temperature and precipitation during the growing season. There was difference in radial growth among F. mandshurica from different provenances under drought stress. F. mandshurica from Wangqing, Dailing, and Hailin had stronger resistance to drought, while that from Wandianzi, Zhanhe, and Xinglong had better recovery ability after drought. Reference | Related Articles | Metrics | Comments（0）

Select

Status and perspective of soil fauna eco-geography in China ZHANG Weixin, SHEN Zhifeng, ZHAO Cancan, MA Zihe, YANG An, SHAO Yuanhu, ZHAO Jie, FU Shenglei Chinese Journal of Applied Ecology    2024, 35 (5): 1435-1446.   DOI: 10.13287/j.1001-9332.202405.029 Abstract （368）      PDF（pc） （2430KB）（53）       Knowledge map    Save As regulators of the surface land processes, soil fauna communities are the vital foundations for healthy terrestrial ecosystems. Soil fauna have been studied in China for more than 70 years. Great progresses have been achieved in exploring soil fauna species composition and geographical distribution patterns. Soil fauna eco-geography, as a bridge between soil fauna geographic patterns and ecosystem services, has a new development opportunity with the deep recognition of soil fauna ecological functions. Soil fauna eco-geography research could be partitioned into four dimensions including the spatio-temporal patterns of: 1) the apparent characteristics of soil fauna community, such as species composition, richness and abundance; 2) the intrinsic characteristics of soil fauna community, such as dietary and habits; 3) soil fauna-related biotic and abiotic interactions especially those indicating drivers of soil fauna community structure or shaping the roles of soil fauna in ecosystems; and 4) soil fauna-related or -regulated key ecological processes. Current studies focus solely on soil fauna themselves and their geographical distributions. To link soil fauna geography more closely with ecosystem services, we suggested that: 1) converting the pure biogeography studies to those of revealing the spatio-temporal patterns of the soil fauna-related or regulated key relationships and ecological processes;2) expanding the temporal and spatial scales in soil fauna geographical research;3) exploring the integrated analysis approach for soil fauna-related data with multi-scales, multi-factors, and multi-processes;and 4) establishing standard reference systems for soil fauna eco-geographical researches. Hence, the change patterns of ecological niche of soil fauna communities could be illustrated, and precision mani-pulations of soil fauna communities and their ecological functions would become implementable, which finally contributes to ecosystem health and human well-being. Reference | Related Articles | Metrics | Comments（0）

Select

Applications of biofilm in environmental pollution control and the related challenges SHEN Dongsheng, XING Xiaojing, LONG Yuyang, HUI Cai Chinese Journal of Applied Ecology    2024, 35 (5): 1426-1434.   DOI: 10.13287/j.1001-9332.202405.028 Abstract （337）      PDF（pc） （2056KB）（33）       Knowledge map    Save Biofilm has been used in environmental pollution control in recent years due to its characteristics of adsorption and biodegradation. Beyond the success of its utilization in wastewater treatment, biofilm technique has high application value in the remediation of heavy metals and organic pollutants in soils. With the extensive attention and research of emerging pollutants such as microplastics and antibiotic resistance genes (ARGs), the pivotal role of biofilm can not be overlooked. Here, we presented a comprehensive review of the structure, formation mecha-nism, population, and functional aspects of biofilm, as well as its applications and mechanisms in environmental pollution control in recent years. We emphatically discussed the removal mechanism and application progress of biofilm on heavy metals and organic pollutants. We further expounded some novel environmental challenges posed by biofilm under new circumstances, including the coexistence of various pollutants in plastisphere, the spread of ARGs, and the accumulation of pathogens. Finally, we put forward the gaps of current research and prospects for future research, especially the importance of exploring the interaction relationship and mechanism between biofilm and various pollutants. It is expected to provide theoretical basis for the development of new technology of biofilm remediation. Reference | Related Articles | Metrics | Comments（0）

Select

Application and prospects of hyperspectral remote sensing in monitoring plant diversity in grassland GU Chen, LIANG Jian, LIU Xuying, SUN Boyuan, SUN Tongsheng, YU Jiangang, SUN Chenxi, WAN Huawei, GAO Jixi Chinese Journal of Applied Ecology    2024, 35 (5): 1397-1407.   DOI: 10.13287/j.1001-9332.202405.024 Abstract （307）      PDF（pc） （552KB）（47）       Knowledge map    Save The biodiversity of grasslands is important for ecosystem function and health. The protection and mana-gement of grassland biodiversity requires the collection of the information on plant diversity. Hyperspectral remote sensing, with its unique advantages of extensive coverage and high spectral resolution, offers a new solution for long-term monitoring of plant diversity. We first reviewed the development history of hyperspectral remote sensing technology, emphasized its advantages in monitoring grassland plant diversity, and further analyzed its specific applications in this field. Finally, we discussed the challenges faced by hyperspectral remote sensing technology in its applications, such as the complexity of data processing, accuracy of algorithms, and integration with ground-based remote sensing data, and proposes prospects for future research directions. With the advancement of remote sensing technology and the integrated application of multi-source data, hyperspectral remote sensing would play an increasingly important role in grassland ecological monitoring and biodiversity conservation, which could provide scientific basis and technical support for global ecological protection and sustainable development. Reference | Related Articles | Metrics | Comments（0）

Select

Application and prospect of landscape ecology in territorial spatial planning LIU Miao, SHI Sixue, ZHANG Tingshuang, LI Dikang, YU Yang, ZHANG Zhibin Chinese Journal of Applied Ecology    2024, 35 (9): 2372-2381.   DOI: 10.13287/j.1001-9332.202409.038 Abstract （289）      PDF（pc） （1346KB）（13）       Knowledge map    Save Territorial spatial planning could achieve the integration of various plans, resulting in a unified “multi-plan integration” map. Such planning emphasizes the efficient use of territorial spatial patterns and structures to ensure functional perfection, and serves as the spatial framework for building a modern socialist country, particularly in the areas of ecological security and ecological civilization. The past few decades have seen rapid advances in the development of landscape ecology in China. The core concept of “pattern-process-function” has gained significant progress and been widely applied in the initial phase of territorial spatial planning at various levels. We outlined the advancements in the territorial spatial planning system and the core research theories and technologies in landscape ecology. We discussed the progress and shortcomings of key theories and methods of landscape ecology in practical applications of territorial spatial planning, such as ecological security patterns, pattern and process, and scale effects. We proposed the future application of landscape ecology theories and technologies in territorial spatial planning, including overall ecological effects, scale effects, and regional ecological network optimization. Future developments in landscape ecology, especially research on the “human-place-ecology” coupling based on the latest Big Data and AI technology for sustainable development, will provide robust theoretical and methodological supports for the scientific formulation of territorial spatial planning in China. Reference | Related Articles | Metrics | Comments（0）

Select

Assessment of carbon reduction and sink enhancement potential of photovoltaic+mining ecological restoration model ZHONG Rui, WANG Jiaoyue, XU Tingting, XI Fengming, HAN Mei, HU Qinqin, BING Longfei, YIN Yan Chinese Journal of Applied Ecology    2024, 35 (5): 1379-1387.   DOI: 10.13287/j.1001-9332.202405.022 Abstract （271）      PDF（pc） （1747KB）（36）       Knowledge map    Save The energy oriented mine ecological restoration mode of photovoltaic+ecological restoration provides a breakthrough for alleviating the dilemma of photovoltaic land development and solving the urgent need for restoration of abandoned mining land. Taking a mining area in central Liaoning Province as an example, we established three photovoltaic+mining ecological restoration modes, including forest-photovoltaic complementary, agriculture-photovoltaic, and grass photovoltaic complementation. Combined with the life cycle assessment method, we calculated and assessed the potential of photovoltaic+mining ecological restoration in carbon reduction and sink enhancement. The average annual carbon reduction and sink increase was 514.93 t CO2·hm-2 under the photovoltaic+mining ecological restoration mode, while the average annual carbon reduction per megawatt photovoltaic power station was 1242.94 t CO2. The adoption of photovoltaic+ecological restoration mode in this mining area could make carbon reduction and sink enhancement 6.30-7.79 Mt CO2 during 25 years. The carbon reduction and sink increment mainly stemmed from the photovoltaic clean power generation induced carbon reduction, accounting for 96.4%-99.4%, while the contribution of ecosystem carbon sink increment was small, accounting for only 0.6%-3.7% of the total. Among different photovoltaic+ecological restoration modes, the carbon reduction and sink increment was the largest in forest-photovoltaic complementary (7.11 Mt CO2), followed by agriculture-photovoltaic (7.04 Mt CO2), and the least in grass photovoltaic complementation (6.98 Mt CO2). Constructing the development mode of “photovoltaic+mining ecological restoration” could effectively leverage the dual benefits of reducing emissions from photovoltaic power generation and increase sinks from mining ecological restoration, which would be helpful for achieving the goal of carbon neutrality in China. Reference | Related Articles | Metrics | Comments（0）

Select

Sources and distributions of microplastics and the hazards to plants, animals and human health:A review SUN Mengyao, GUO Jiayang, WANG Xinyi, CHANG Xiao Chinese Journal of Applied Ecology    2024, 35 (8): 2301-2312.   DOI: 10.13287/j.1001-9332.202408.028 Abstract （267）      PDF（pc） （1878KB）（118）       Knowledge map    Save The increases in plastic production and inadequate plastic waste management have significantly increased the presence of microplastics (MPs) in the environment. MPs refer to plastic fragments and particles with a size smaller than 5 millimeters. Numerous studies have focused on the impacts of MPs on the environment and living organisms, and explored the potential mechanisms. Humans and other organisms can ingest or carry MPs through various pathways, which have a range of adverse effects on metabolism, functionality, and health. Additionally, due to their larger surface area, MPs could adsorb various pollutants, including heavy metals and persistent organic pollutants, severely affecting the health of animals and humans. Based on research on MPs in recent years, we reviewed the sources and distribution of MPs, examined exposure pathways, toxic effects, and toxicological mechanisms on plants, animals, and human bodies, and provided a prospective outlook on future directions for MP research. This review would be a reference for further assessments of the health risks of MPs. Reference | Related Articles | Metrics | Comments（0）

Select

Growth difference of planted Pinus koraiensis from different provenances in Maoer Mountain, China FAN Yingxin, JIA Weiwei, LI Fengri, LI Dandan, ZHANG Cong Chinese Journal of Applied Ecology    2024, 35 (7): 1735-1743.   DOI: 10.13287/j.1001-9332.202407.006 Abstract （259）      PDF（pc） （2450KB）（25）       Knowledge map    Save In order to analyze the growth pattern of tree height of planted Pinus koraiensis and screen the provenances with fastest growth, we grouped the provenances using the differences in tree height, diameter at breast height (DBH) and volume of timber of 234 individuals of planted P. koraiensis from 26 provenances in Maoershan Experimental Forest Farm. We constructed the growth equation for tree height by combining the base models of Gompertz, Korf, Richards, Logistic, and Schumacher, and then selected the optimal one. We introduced the prove-nance grouping as a dummy variable into the base model, and evaluated the optimal tree height growth equation by a comprehensive evaluation of the model according to the coefficient of determination (R2), the root-mean-square error (RMSE), the Akaikei Information Criterion (AIC), and the model's predictive precision (FP). The results showed that the growth traits of the 26 provenances had significant difference among the groups, and that tree height and DBH showed significant differences among the provenances. According to the comprehensive consideration of different growth traits, the four groups of provenance growth were divided into group A (Wuying, Hebei, Linjiang, Dongfanghong, Huanan, Lushuihe, Fangzheng) >group B (Aihuisanzhan, Liangshui, Tieli, Qinghe) > group C (Wuyiling, Zhanhe, Liangzihe, Baihe, Chaihe, Caohekou, Bajiazi) >group D (Tongzigou, Dashitou, Wangqing, Helong, Yanshou, Dahailin, Xiaobeihu, Muling). The optimal base tree height growth model of the four groups was the Gompertz model, and the fitting accuracy of the model after the introduction of dummy variables (R2=0.9353) was higher than that of the base model (R2=0.9303), and the model prediction accuracy was also improved. The tree height growth curves of each provenance group conformed to the “S”-shaped rule of change. There were obvious differences among the groups, with the best performance of the provenances in group A. The growth of P. koraiensis from different provenances was different, and the tree height growth model with dummy variables of provenance groups could effectively improve the prediction accuracy of the model, reflect the differences in height growth of P. koraiensis of different provenances, which could provide the scientific basis for the selection and cultivation of P. koraiensis plantations. Reference | Related Articles | Metrics | Comments（0）

Select

Responses of radial growth of Larix principis-rupprechtii at different densities to drought events ZHANG Zihang, WANG Heng, JIA Jianheng, SUN Haokang, HAN Jiaxuan, GUO Mingming Chinese Journal of Applied Ecology    2024, 35 (5): 1169-1176.   DOI: 10.13287/j.1001-9332.202405.005 Abstract （243）      PDF（pc） （1901KB）（25）       Knowledge map    Save In recent years, a surge in drought occurrences has dramatically impacted tree growth worldwide. We examined the ecological resilience of Larix principis-rupprechtii plantations with varying densities (1950, 2355, and 2595 trees·hm-2) at the Saihanba Mechanical Forest Farm, by extracting the increment cores using the standard dendrochronological method to measure individual-tree basal area increments (BAI) as part of our assessment of ecological resilience, including resistance (Rt), recovery (Rc), and resilience (Rs). The results showed that drought events occurred in 2006-2010, 2015, and 2018. The Rt for L. principis-rupprechtii plantations varied from 0.76 to 2.01 across three drought events, indicating generally high resistance, except for the plantation with 2355 trees·hm-2 during the second dry year (Rt=0.69). The Rt for the plantation with 2595 trees·hm-2 significantly decreased across all drought events, while no significant change was observed in the plantations with 1950 and 2355 trees·hm-2. The Rc showed no differences in response to a single drought event across plantation densities, with a significant upward trend for all the densities with each occurrence of drought event. There was no significant difference in the resilience of different densities of L. principis-rupprechtii to the first drought event, whereas the plantation with 2595 trees·hm-2 exhibited significantly lower Rs during the second and third drought events compared with 1950 and 2355 trees·hm-2, respectively. During the 2015 drought event, plantation with 2595 trees·hm-2 experienced a significant growth decline (radial growth change rate was -26.5%), while no such decline was observed in the plantations with 1950 and 2355 trees·hm-2. Overall, the plantation with 2595 trees·hm-2 demonstrated the lowest resilience to drought events. Reference | Related Articles | Metrics | Comments（0）

Select

Research advance on soil organic carbon stabilization mechanisms during vegetation restoration on the Loess Plateau, Northwest China AN Shaoshan, HU Yang, WANG Baorong Chinese Journal of Applied Ecology    2024, 35 (9): 2413-2422.   DOI: 10.13287/j.1001-9332.202409.013 Abstract （241）      PDF（pc） （1371KB）（24）       Knowledge map    Save The Loess Plateau is renowned for its deep soil layer and rich in organic carbon (C). In recent years, numerous ecological restoration projects have been undertaken on the Loess Plateau, with consequence on the stability of soil organic carbon (SOC). The SOC stability is pivotal for its capacity to sequestrate and store C. However, comprehensive review on the characteristics of SOC stability and its mechanisms during vegetation restoration on the Loess Plateau is scarce. Therefore, we summarized the dynamics of SOC stability during vegetation restoration on the Loess Plateau, discussed the mechanisms of SOC stabilization, including mineral protection, physical protection, and biological mechanisms. Furthermore, we prospected the future development directions and research focus of SOC stability research during vegetation restoration on the Loess Plateau to provide scientific support for theory and technology of soil C sequestration and stabilization during vegetation restoration, and to provide scientific reference for achieving the “double-carbon” goals. Reference | Related Articles | Metrics | Comments（0）

Select

Recent research progress of soil nematode ecology in China LIANG Siwei, LIU Xiaotong, LI Yingbin, LIANG Wenju Chinese Journal of Applied Ecology    2024, 35 (8): 2282-2290.   DOI: 10.13287/j.1001-9332.202408.031 Abstract （237）      PDF（pc） （743KB）（39）       Knowledge map    Save Soil nematodes are a crucial component of belowground ecosystems. Soil nematode ecology, the studies of community distribution, structural composition, ecological functions, and interaction mechanisms with environment, has always been a hot spot in soil biology research. We systematically elaborated soil nematodes’ high diversity and various diet, their advantages as bioindicator and model organisms, and their roles in biological control, ecological functions and soil health. Then, we reviewed the research progress of soil nematode ecology in China, including molecular biology identification methods, responses to global changes, food web structure and function, aboveground and belowground diversity relationship, and large-scale diversity pattern. We put forward the development trend of soil nematology, focusing on the high-throughput sequencing technology in nematode identification and quantification, the necessity of establishing a universal analysis platform to promote soil nematode research, and the importance of strengthening large-scale soil nematode survey. Reference | Related Articles | Metrics | Comments（0）

Select

Research progress on the influencing factors and response mechanisms of plant adsorption of atmospheric particulate matter A Yun, ZHANG Jinqing, ZHANG Haijuan, DONG Ruizhen Chinese Journal of Applied Ecology    2024, 35 (7): 2013-2024.   DOI: 10.13287/j.1001-9332.202407.028 Abstract （235）      PDF（pc） （3301KB）（25）       Knowledge map    Save Plants could effectively adsorb and remove particulate matter from the air, while could be suffered from the adverse effects. Therefore, exploring the interaction between plants and atmospheric particulate matter is crucial for profound understanding of ecological balance, microenvironmental climate, and environmental quality improvement. Few systematic literature have elaborated the adsorption and response mechanisms of atmospheric particulate matter by plants. We summarized the causes and composition of atmospheric particulate matter, as well as the adsorption methods and factors of plants on atmospheric particulate matter. Moreover, we elaborated the impact of atmospheric particulate matter stress on phenotypic and physiological characteristics, as well as molecular mechanisms. For the future researches, we proposed 1) to select plant species with strong adaptability and high dust retention capacity. Subsequently, there should be a universal green dust retention plan on account of comprehensive factors such as plant community structure, street morphology, and planting space; 2) to extend the research from urban areas to agricultural and pastoral areas, with a systematic analysis of the comprehensive dust retention capacity of communities with different plant configuration; 3) to effectively combine the dust retention capacity of plants with their own resistance. Subsequently, we should explore the physiological and molecular mechanisms of plants responding to atmospheric particulate matter stress and establish a comprehensive evaluation system and criteria; 4) to develop in situ labeling detection technology, which would be a valuable tool for accurately tracing and quanti-fying the dynamics of atmospheric particulate matter within plant at the cellular level. Reference | Related Articles | Metrics | Comments（0）

Select

History, challenges, and prospects of researches on fish functional diversity KANG Bin Chinese Journal of Applied Ecology    2024, 35 (9): 2338-2351.   DOI: 10.13287/j.1001-9332.202409.030 Abstract （227）      PDF（pc） （1278KB）（13）       Knowledge map    Save To complete the life cycle, species exhibit corresponding functional traits in morphology, physiology, ecology, etc. The eigenvalues, variation, and distribution of functional traits are the functional components of biodiversity, namely functional diversity, could maintain the service function and healthy operation of ecosystems. The application of functional diversity broadens our understanding of biodiversity and its temporal and spatial variations, and provides a breakthrough to the problem of how to combine morphological structure with ecological function. I reviewed the research process of functional diversity from the perspective of proposing, calculating, and applying the parameters of functional diversity, as well as the application of functional diversity from different purposes and perspectives. I put forward the challenges and countermeasures of related studies. In the future, researches should pay attention to establish a set of effective trait indicators, discover the internal and external mechanisms driving functional diversity variations, and map the redistribution of traits under environmental changes. Reference | Related Articles | Metrics | Comments（0）

Select

Growth decline characteristics of Picea schrenkiana at different altitudes in Yili River Basin, western Tian-shan Mountains, Xinjiang, China ZHANG Xinyu, GAO Lushuang, LIU Kexiang, QIN Li, ZHANG Ruibo, HAN Xinyu, ZHAO Bingqian Chinese Journal of Applied Ecology    2024, 35 (5): 1196-1204.   DOI: 10.13287/j.1001-9332.202405.006 Abstract （226）      PDF（pc） （3275KB）（26）       Knowledge map    Save Picea schrenkiana is the dominant tree species in Ili River Basin located in the western Tianshan Mountains of Xinjiang. We investigated the growth decline characteristics of P. schrenkiana at different altitudes (1800, 2300 and 2800 m) based on tree-ring index (TRI) and percentage growth change (GC), aiming to understand the growth response of P. schrenkiana to drought events at different altitudes and the impacts of altitude on tree growth decline in this region. The results showed that P. schrenkiana experienced multiple decline events at low-altitude (1800 m). TRI and GC identified inconsistent occurrence time of the decline events. The variations of TRI indicated that P. schrenkiana at low-altitude experienced two large-scale declines during 1927-1933 and 2017-2014, respectively. The variations of GC identified four decline events, including 1891-1893, 1924-1926, 1973-1975, and 2004-2009. The radial growth of P. schrenkiana across altitudes from low to high was significantly affected by the Palmer drought severity index (PDSI) of the previous growing season. The impact of current PDSI on P. schrenkiana during the growing season initially enhanced but later decreased with increasing altitude. In the extreme drought year 1917, the magnitude of growth decline increased with altitude. At low-altitude (1800 m), the TRI was 0.65, which was 35% lower than the normal level. At mid-altitude (2300 m) and high-altitude (2800 m), it was 0.56 and 0.54, respectively, being 40% lower than the average level. The drought event in 1917 had a 2-year legacy effect on the growth of P. schrenkiana at all the altitudes, with the TRI in 1920 recovered to exceeding 0.9, being close to the normal level. The impact of altitude on drought-induced forest decline was significant. Tree growth in low-altitude areas was more vulnerable to drought events due to the relatively poorer water and temperature conditions at low-altitude, which could lead to multiple large-scale decline events. In mid- and high-altitude areas, where hydrothermal conditions were more favorable, trees could experience even more severe decline during extreme droughts. Reference | Related Articles | Metrics | Comments（0）

Select

Research status and rapid detection methods of antibiotic residues in agricultural products ZHANG Gen, CHEN Baorui, PAN Lulu, WANG Hui, YANG Bo, BU Qinpeng Chinese Journal of Applied Ecology    2024, 35 (5): 1408-1418.   DOI: 10.13287/j.1001-9332.202405.031 Abstract （224）      PDF（pc） （614KB）（24）       Knowledge map    Save Antibiotics are widely utilized in agriculture for the prevention and treatment of animal diseases. How-ever, the abuse and overuse of antibiotics progressively increase the risks of antibiotic residues and antibiotic resis-tance. The bioaccumulation and biomagnification of antibiotics through food chains will negatively affect ecological safety, and finally threaten human health. There are many shortages of traditional antibiotic detection techniques, such as complex procedures, complicated operation and time consuming, and thus are difficult to meet the demand of instant, efficient and accurate on-site detection. Therefore, it is crucial to develop rapid detection techniques of antibiotics to manage the application of antibiotics in agriculture. We reviewed the utilization, and management of antibiotics in animal husbandry, residual characteristics, and potential hazards of antibiotics in agricultural products, summarized the advancements in rapid detection techniques of antibiotics in agricultural products over the past five years, compared the advantages and disadvantages of different rapid detection techniques, and prospected the future development in this area. This review would provide a valuable reference to the control and point-of-care test of antibiotics in agricultural products. Reference | Related Articles | Metrics | Comments（0）

Select

Variations in soil enzyme stoichiometry and microbial nutrient limitations in Camellia oleifera plantations with different ages SUN Ben, ZHOU Yunchao, DENG Mei, ZHANG Jiachun, LUO Guobing Chinese Journal of Applied Ecology    2024, 35 (5): 1233-1241.   DOI: 10.13287/j.1001-9332.202405.010 Abstract （217）      PDF（pc） （2049KB）（27）       Knowledge map    Save The alteration of stand age instigates modifications in soil properties and microbial communities. Understanding the impacts of stand age on soil enzyme stoichiometry and microbial nutrient limitations in Camellia oleifera plantation is crucial for nutrient management. Taking C. oleifera plantation across four age groups (<10 a, 15-25 a, 30-50 a, >60 a) in a subtropical red soil region as test objects, we examined the response of soil enzyme stoichiometry and microbial nutrient limitations to change in stand age and analyzed the pathways for such responses. The results showed that, compared to that of stand age <10 a, enzyme C:N in the 15-25 a was increased and enzyme N:P was significantly reduced. Microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), and microbial biomass phosphorus (MBP) exhibited a trend of initially decreasing and then increasing with stand age. MBN and MBN:MBP were significantly higher in the <10 a compared to that in the 30-50 a. MBC:MBN was significantly higher in the 30-50 a and >60 a compared to the <10 a and 15-25 a. Results of redundancy analysis revealed that soil nutrients, microbial biomass and their stoichiometry explained 92.4% of the variations in enzyme stoichiometry. Partial least squares path modeling (PLS-PM) results demonstrated that soil organic carbon (SOC) had a positive effect on microbial C limitation; MBN, MBN:MBP, MBC:MBP, SOC, and total nitrogen had a nega-tive overall effect on microbial P limitation, whereas soil C:N had a positive overall effect on microbial P limitation. There was a significant positive correlation between microbial C and P limitations. With increasing stand age, microbial nutrient limitation shifted from N and P limitation (<10 a) to C and P limitation (15-25 a, 30-50 a, >60 a). Reference | Related Articles | Metrics | Comments（0）