宁南山区植被恢复对土壤团聚体养分特征及微生物特性的影响

doi:10.13287/j.1001-9332.201901.022

应用生态学报 ›› 2019, Vol. 30 ›› Issue (1): 137-145.doi: 10.13287/j.1001-9332.201901.022

宁南山区植被恢复对土壤团聚体养分特征及微生物特性的影响

李秋嘉¹,薛志婧^1,2*,周正朝¹

¹陕西师范大学地理科学与旅游学院, 西安 710119;
²西北农林科技大学水土保持研究所, 陕西杨凌 712100

收稿日期:2018-04-29 修回日期:2018-10-31 出版日期:2019-01-20 发布日期:2019-01-20
通讯作者: xue1986@snnu.edu.cn
作者简介:李秋嘉, 男, 1994年生, 硕士研究生. 主要从事水土保持效益评价研究. E-mail: erostcate@foxmail.com
基金资助:
本文由国家重点研发计划项目(2017YFC0504702)、国家自然科学基金项目(41807060,41501290)、中国科学院水利部水土保持研究所重点实验室开放基金(A314021402-1707)资助

Effects of vegetation restoration on nutrient and microbial properties of soil aggregates with different particle sizes in the loess hilly regions of Ningxia, Northwest China

LI Qiu-jia¹, XUE Zhi-jing^1,2*, ZHOU Zheng-chao¹

¹School of Geographical Science and Tourism, Shaanxi Normal University, Xi’an 710119, China;
²Institute of Soil and Water Conservation, Northwest A＆F University, Yangling 712100, Shannxi, China

Received:2018-04-29 Revised:2018-10-31 Online:2019-01-20 Published:2019-01-20
Supported by:
This work was supported by the National Key R&D Plan of China (2017YFC0504702), the National Natural Science Foundation of China (41807060,41501290), and the Open Fund of Key Laboratory of Institute of Soil and Water Conservation of Chinese Academy of Sciences and Ministry of Water Resources (A314021402-1707).

摘要/Abstract

摘要： 测定了宁夏黄土丘陵区植被恢复近30年的天然草地和农地不同粒径团聚体的土壤养分含量、微生物生物量、呼吸特性和生态化学计量比等指标,探索黄土丘陵区植被恢复对不同粒径土壤团聚体的养分特性和微生物学性质的影响.结果表明: 微团聚体(粒径<0.25 mm)质量百分比、各粒径土壤团聚体养分(有机碳、全氮、速效钾)含量、C/N均表现为天然草地大于农地,其中1～2 mm粒径团聚体有机碳、全氮含量在天然草地和农地中均最高,C/N也较高,说明植被恢复能有效促进土壤团粒的形成,适宜养分积累和有机碳的汇集,且在1～2 mm粒径团聚体上表现最为突出;天然草地各粒径土壤团聚体微生物生物量(碳、氮)、基础呼吸强度均高于农地,而呼吸熵低于农地,可见植被恢复措施可有效提高各粒径土壤微生物生物量与活性,并使土壤生境趋于稳定;但由于养分特性的差异,不同粒径团聚体微生物特性对植被修复的响应存在差异,其中天然草地土壤1～2 mm粒径团聚体微生物生物量碳,<0.25、0.25～1、1～2 mm粒径团聚体微生物生物量氮,以及1～2、>5 mm粒径团聚体基础呼吸强度显著高于其他粒径,即上述粒径团聚体的微生物生物量和微生物活性在植被恢复过程中逐渐被改善.表明宁南山区植被恢复有效改善了土壤团聚体的肥力状况与结构特征,且1～2 mm粒径团聚体的改良效果最为突出.

关键词: 土壤团聚体, 土壤呼吸, 微生物生物量, 植被恢复, 土壤养分

Abstract: We explored the effects of vegetation restoration on the soil nutrients and microbial pro-perties of soil aggregates with different particle size by comparing soils in a natural grassland which had been restored for nearly 30 years and in cropland in the loess hilly regions of Ningxia. We analyzed the soil organic carbon (SOC), total nitrogen (TN), microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), soil basal respiration (CO₂-C) and respiratory quotient (qCO₂) of different particle size soil aggregates collected from cropland and natural grassland. The results showed that soil aggregates of natural grassland had more micro-aggregates (particle size <0.25 mm), higher nutrient concentrations (SOC, TN and available K) and C/N than that of cropland. The highest concentrations of SOC and TN in 1-2 mm aggregates and higher C/N in natural grassland and cropland suggested that vegetation restoration could improve the capacity of soil aggregates to reduce nutrient loss and accumulate organic matter, with the highest nutrient accumulation in 1-2 mm aggregates. Microbial biomass (MBC, MBN) and CO₂-C in natural grassland were higher than in cropland, but the qCO₂ was significantly lower, suggesting that vegetation restoration could effectively improve soil microbial biomass and activity, and make soil habitats more stable. The magnitude of responses of the microbial characteristics of different particle aggregates to vegetation restoration varied due to the differences in nutrient characteristics. The MBC of 1-2 mm aggregates, the MBN of <0.25 mm, 0.25-1 mm and 1-2 mm aggregates, the microbial activity of 1-2 mm and >5 mm aggregates were more sensitive than the rest of the particle aggregates of vegetation restoration. In conclusion, vegetation restoration could effectively improve the fertility and structural characteristics of soil aggregates, and the most prominent improvement was in 1-2 mm particle size aggregates.

Key words: soil nutrient, vegetation restoration., soil respiration, microbial biomass, soil aggregate

李秋嘉,薛志婧,周正朝. 宁南山区植被恢复对土壤团聚体养分特征及微生物特性的影响[J]. 应用生态学报, 2019, 30(1): 137-145.

LI Qiu-jia, XUE Zhi-jing, ZHOU Zheng-chao. Effects of vegetation restoration on nutrient and microbial properties of soil aggregates with different particle sizes in the loess hilly regions of Ningxia, Northwest China[J]. Chinese Journal of Applied Ecology, 2019, 30(1): 137-145.

参考文献

[1] Gelaw AM, Singh BR, Lal R. Organic carbon and nitrogen associated with soil aggregates and particle sizes under different land uses in Tigray, northern Ethiopia. Land Degradation and Development, 2015, 26: 690-700
[2] Zhao S-W (赵世伟), Su J (苏静), Wu J-S (吴金水), et al. Changes of soil aggregate organic carbon during process of vegetation restoration in Ziwuling. Journal of Soil and Water Conservation (水土保持学报), 2006, 20(3): 114-117 (in Chinese)
[3] Wen Q (文倩), Zhao X-R (赵小蓉), Tuo D-B (妥德宝), et al. Distribution characteristics of microbial biomass carbon in different soil aggregates in semi-arid area. Scientia Agricultura Sinica (中国农业科学), 2005, 38(1): 91-95 (in Chinese)
[4] Wen Q (文倩), Li P-P (李培培), Lin Q-M (林启美), et al. Characteristics of microbial biomass attri-butes in soil dry aggregates from lands of different uses in the semi-arid area. Acta Ecologica Sinica (生态学报), 2014, 34(24): 7403-7410 (in Chinese)
[5] Hern ndez-Hern ndez RM, L pez-Hern ndez D. Microbial biomass, mineral nitrogen and carbon content in savanna soil aggregates under conventional and no-tillage. Soil Biology and Biochemistry, 2002, 34: 1563-1570
[6] Brookes P, Landman A, Pruden G, et al. Chloroform fumigation and the release of soil nitrogen: A rapid direct extraction method to measure microbial biomass nitrogen in soil. Soil Biology and Biochemistry, 1985, 17: 837-842
[7] Benesch M, Glaser B, Dippold M, et al. Soil microbial C and N turnover under Cupressus lusitanica, and natural forests in southern Ethiopia assessed by decomposition of ¹³C- and ¹⁵N- labelled litter under field conditions. Plant and Soil, 2015, 388: 133-146
[8] Li N (李娜), Han X-Z (韩晓增), You M-Y (尤孟阳), et al. Research review on soil aggregates and microbes. Ecology and Environmental Sciences (生态环境学报), 2013, 22(9): 1625-1632 (in Chinese)
[9] Li J (李景), Wu H-J (吴会军), Wu X-P (武雪萍), et al. Effects of long-term tillage measurements on soil aggregate characteristic and microbial diversity. Chinese Journal of Applied Ecology (应用生态学报), 2014, 25(8): 2341-2348 (in Chinese)
[10] Chenu C, Stotzky G, Huang PM, et al. Interactions between microorganisms and soil particles: An overview // IUPAC Series of Applied Chemistry, ed. Interactions between Soil Particles and Microorganisms. London: Wiley & Sons, 2002: 3-40
[11] Gong J (巩杰), Chen L-D (陈利顶), Fu B-J (傅伯杰), et al. Effects of vegetation restoration on soil nutrient in a small catchment in hilly loess area. Journal of Soil and Water Conservation (水土保持学报), 2005, 19(1): 93-96 (in Chinese)
[12] Xue S (薛萐), Liu G-B (刘国彬), Dai Q-H (戴全厚), et al. Dynamic changes of soil microbial biomass in the restoration process of shrub plantations in loess hilly area. Chinese Journal of Applied Ecology (应用生态学报), 2008, 19(3): 517-523 (in Chinese)
[13] Huang Y-M (黄懿梅), An S-S (安韶山), Xue H (薛虹). Responses of soil microbial biomass C and N and respiratory quotient (qCO₂) to revegetation on the Loess Hilly-Gully region. Acta Ecologica Sinica (生态学报), 2009, 29(6): 2811-2818 (in Chinese)
[14] Rachid M. Stratification of soil aggregation and organic matter under conservation tillage systems in Africa. Soil and Tillage Research, 2002, 66: 119-128
[15] Xue J-F (薛菁芳), Gao Y-M (高艳梅), Wang J-K (汪景宽), et al. Microbial biomass carbon and nitrogen as an indicator for evaluation of soil fertility. Chinese Journal of Soil Science (土壤通报), 2007, 38(2): 247-250 (in Chinese)
[16] Cheng M (程曼), Cheng Y (成毅), An S-S (安韶山). Effects of cropland conversion on soil microbial biomass and enzymatic activities in the loess hilly area of Ningxia. Research of Soil and Water Conservation (水土保持研究), 2010, 17(5): 142-147 (in Chinese)
[17] Cheng Y (成毅). Distribution of Soil Microbial Diversity in Different Size of Aggregates during the Process of Revegetation on Southern Area of Ningxia. Master Thesis. Yangling, Shaanxi: Northwest A&F University, 2011 (in Chinese)
[18] Lu R-K (鲁如坤). Soil and Agricultural Chemistry Analysis. Beijing: China Agricultural Science and Technology Press, 2000 (in Chinese)
[19] Wan X, Huang Z, He Z, et al. Soil C:N ratio is the major determinant of soil microbial community structure in subtropical coniferous and broadleaf forest plantations. Plant and Soil, 2015, 387: 103-116
[20] Li Y, Wu J, Shen J, et al. Soil microbial C:N ratio is a robust indicator of soil productivity for paddy fields. Scientific Reports, 2016, 6: 35266, doi: 10.1038/srep35266
[21] Thomson BC, Tisserant E, Plassart P, et al. Soil conditions and land use intensification effects on soil microbial communities across a range of European field sites. Soil Biology and Biochemistry, 2015, 88: 403-413
[22] Fu BJ, Chen LD, Ma KM, et al. The relationships between land use and soil conditions in the hilly area of the loess plateau in northern Shaanxi, China. Catena, 2000, 39: 69-78
[23] She D (佘雕). The Characteristics and Assessment on Soil Quality of Shrub Lands in Loess Plateau. PhD Thesis. Yangling, Shaanxi: Northwest A&F University, 2010 (in Chinese)
[24] Nguyen TT, Cavagnaro TR, Ngo HTT, et al. Soil respiration, microbial biomass and nutrient availability in soil amended with high and low C/N residue: Influence of interval between residue additions. Soil Biology and Biochemistry, 2016, 95: 189-197
[25] Lopes MM, Salviano AAC, Araujo ASF, et al. Changes in soil microbial biomass and activity in different Brazi-lian pastures. Spanish Journal of Agricultural Research, 2010, 8: 1253-1259
[26] Raich JW, Tufekcioglu A. Vegetation and soil respiration: Correlations and controls. Biogeochemistry, 2000, 48: 71-90
[27] Heuck C, Weig A, Spohn M. Soil microbial biomass C:N:P stoichiometry and microbial use of organic phosphorus. Soil Biology and Biochemistry, 2015, 85: 119-129

宁南山区植被恢复对土壤团聚体养分特征及微生物特性的影响

Effects of vegetation restoration on nutrient and microbial properties of soil aggregates with different particle sizes in the loess hilly regions of Ningxia, Northwest China

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	张羽涵, 李瑶, 周玥, 陈圆佳, 安韶山. 宁南山区不同恢复年限柠条林土壤养分及有机碳组分变化特征 [J]. 应用生态学报, 2024, 35(3): 639-647.
[2]	卢国伟, 王琦璇, 杨继松, 孙丹丹, 王志康, 周迪, 管博, 于君宝, 宁凯. 黄河三角洲稻田退耕还湿对土壤团聚体组成及稳定性的影响 [J]. 应用生态学报, 2024, 35(3): 705-712.
[3]	谢京瑾, 许秋月, 何敏, 夏允, 范跃新, 杨柳明. 中亚热带森林更新方式对土壤团聚体磷组分的影响 [J]. 应用生态学报, 2024, 35(2): 330-338.
[4]	李佳玉, 施秀珍, 李帅军, 王振宇, 王建青, 邹秉章, 王思荣, 黄志群. 杉木人工林和天然次生林林龄对土壤酶活性的影响 [J]. 应用生态学报, 2024, 35(2): 339-346.
[5]	孙官发, 陆梅, 闪昇阳, 赵定蓉, 孙煜佳, 刘国庆, 赵旭燕, 冯峻. 短期氮沉降对纳帕海高寒退化疏花早熟禾草甸土壤呼吸干湿季变化的影响 [J]. 应用生态学报, 2024, 35(2): 390-398.
[6]	刘洪顺, 布仁仓, 王正文, 常禹, 熊在平, 齐丽, 高越. 辽西北沙化土地植被生产力关键影响因素 [J]. 应用生态学报, 2024, 35(1): 49-54.
[7]	张秀颖, 蔡江平, 王聪, 江志阳, 李慧, 王正文, 姜勇, 张玉革. 不同培肥模式对辽西北沙化草地土壤改良与植被恢复的影响 [J]. 应用生态学报, 2024, 35(1): 55-61.
[8]	王国华, 王佳琪, 刘婧. 晋西北丘陵风沙区柠条锦鸡儿人工林植被和土壤随林龄变化特征 [J]. 应用生态学报, 2024, 35(1): 62-72.
[9]	张羽涵, 李瑶, 周玥, 刘春晖, 安韶山. 宁南山区不同恢复年限柠条林地土壤微生物残体碳沿剖面分布特征 [J]. 应用生态学报, 2024, 35(1): 161-168.
[10]	代泽成, 刘月秀, 党宁, 王志瑞, 蔡江平, 张玉革, 宋永波, 李慧, 姜勇. 长期氮水添加对温带草原土壤化学性质和微生物学特性的短期遗留效应 [J]. 应用生态学报, 2023, 34(7): 1834-1844.
[11]	吕晶花, 赵旭燕, 陆梅, 李聪, 杨志东, 刘攀, 陈志明, 冯峻. 氮沉降下纳帕海草甸植被与土壤变化对微生物生物量碳氮的影响 [J]. 应用生态学报, 2023, 34(6): 1525-1532.
[12]	植可翔, 关欣, 李仁山, 王娇, 段萱, 陈波翰, 张伟东, 杨庆朋. 杉木林下植物氮磷重吸收对微尺度土壤养分异质性的响应 [J]. 应用生态学报, 2023, 34(5): 1187-1193.
[13]	田宁, 黄雪梅, 陈龙池, 黄苛, 陶晓. 施石灰对杉木人工林土壤呼吸及其温度敏感性的影响 [J]. 应用生态学报, 2023, 34(5): 1194-1202.
[14]	王世豪, 徐新良, 黄麟, 赵广. 1980s—2010s东北农田土壤养分时空变化特征 [J]. 应用生态学报, 2023, 34(4): 865-875.
[15]	吕付泽, 杨雅丽, 鲍雪莲, 张常仁, 郑甜甜, 何红波, 张旭东, 解宏图. 免耕不同秸秆覆盖量对黑土微生物群落及其残留物的影响 [J]. 应用生态学报, 2023, 34(4): 903-912.