Responses of nitrogen and phosphorus resorption of understory plants to microscale soil nutrient hetero-geneity in Chinese fir plantation

doi:10.13287/j.1001-9332.202305.003

Abstract

Abstract: We compared the interspecific differences in leaf nutrient resorption of two dominant understory species (Lophatherum gracile and Oplimenus unulatifolius), and analyzed the correlations between the intraspecific efficiency of leaf nutrient resorption and nutrient properties of soil and leaves in Chinese fir plantation. The results showed high soil nutrient heterogeneity in Chinese fir plantation. Soil inorganic nitrogen content and available phosphorus content varied from 8.58 to 65.29 mg·kg^-1 and from 2.43 to 15.20 mg·kg^-1 in the Chinese fir plantation, respectively. The soil inorganic nitrogen content in O. undulatifolius community was 1.4 times higher than that in L. gra-cile community, but there was no significant difference in soil available phosphorus content between the two communities. Both leaf nitrogen and phosphorus resorption efficiency of O. unulatifolius was significantly lower than that of L. gracile under the three measurement bases of leaf dry weight, leaf area, and lignin content. Resorption efficiency in L. gracile community expressed on leaf dry weight was lower than that expressed on leaf area and lignin content, while resorption efficiency expressed on leaf area was the lowest in O. unulatifolius community. The intraspecific resorption efficiency was significantly correlated with leaf nutrient contents, but was less correlated with soil nutrient content, and only the nitrogen resorption efficiency of L. gracile had significant positive correlation with soil inorganic nitrogen content. The results indicated that there was significant difference in the leaf nutrient resorption efficiency between the two understory species. Soil nutrient heterogeneity exerted a weak effect on the intraspecific nutrient resorption, which might be attributed to high soil nutrient availability and potential disturbance from canopy litter in Chinese fir plantation.

Key words: nutrient resorption, understory plant, soil nutrient heterogeneity, Lophatherum gracile, Oplimenus unulatifolius, Chinese fir plantation

ZHI Kexiang, GUAN Xin, LI Renshan, WANG Jiao, DUAN Xuan, CHEN Bohan, ZHANG Weidong, YANG Qingpeng. Responses of nitrogen and phosphorus resorption of understory plants to microscale soil nutrient hetero-geneity in Chinese fir plantation[J]. Chinese Journal of Applied Ecology, 2023, 34(5): 1187-1193.

References

[1] See CR, Yanai RD, Fisk MC, et al. Soil nitrogen affects phosphorus recycling: Foliar resorption and plant-soil feedbacks in a northern hardwood forest. Ecology, 2015, 96: 2488-2498
[2] Aerts R, Chapin FS. The mineral nutrition of wild plants revisited: A re-evaluation of processes and patterns. Advances in Ecological Research, 2000, 30: 1-67
[3] 张耀艺, 倪祥银, 杨静, 等. 中亚热带同质园不同树种氮磷重吸收及化学计量特征. 应用生态学报, 2021, 32(4): 1154-1162
[4] Lyu XT, Freschet GT, Flynn DFB, et al. Plasticity in leaf and stem nutrient resorption proficiency potentially reinforces plant-soil feedbacks and microscale heterogeneity in a semi-arid grassland. Journal of Ecology, 2012, 100: 144-150
[5] Deng MF, Liu LL, Jiang L, et al. Ecosystem scale trade-off in nitrogen acquisition pathway. Nature Ecology & Evolution, 2018, 2: 1724-1734
[6] 许淼平, 张欣怡, 李文杰, 等. 不同林龄刺槐叶片养分重吸收特征及其对土壤养分有效性的响应. 应用生态学报, 2020, 31(10): 3357-3364
[7] Eckstein RL, Karlsson PS, Weih M. Leaf life span and nutrient resorption as determinants of plant nutrient conservation in temperate-arctic regions. New Phytologist, 1999, 143: 177-189
[8] 龙靖, 黄耀, 刘占锋, 等. 西沙热带珊瑚岛典型乔木叶片性状和养分再吸收特征. 生态环境学报, 2022, 31(2): 248-256
[9] Killingbeck KT. Nutrients in senesced leaves: Keys to the search for potential resorption and resorption proficiency. Ecology, 1996, 77: 1716-1727
[10] Wright IJ, Westoby M. Nutrient concentration, resorption and lifespan: Leaf traits of Australian sclerophyll species. Functional Ecology, 2003, 17: 10-19
[11] Ren HY, Kang J, Yuan ZY, et al. Responses of nutrient resorption to warming and nitrogen fertilization in contrasting wet and dry years in a desert grassland. Plant and Soil, 2018, 432: 65-73
[12] Norris MD, Reich PB. Modest enhancement of nitrogen conservation via retranslocation in response to gradients in N supply and leaf N status. Plant and Soil, 2009, 316: 193-204
[13] Yuan ZY, Chen HYH. Negative effects of fertilization on plant nutrient resorption. Ecology, 2015, 96: 373-380
[14] van Heerwaarden LM, Toet S, Aerts R. Nitrogen and phosphorus resorption efficiency and proficiency in six sub-arctic bog species after 4 years of nitrogen fertilization. Journal of Ecology, 2003, 91: 1060-1070
[15] Lu XT, Han XG. Nutrient resorption responses to water and nitrogen amendment in semi-arid grassland of Inner Mongolia, China. Plant and Soil, 2010, 327: 481-491
[16] Li YL, Kronzucker HJ, Shi WM. Microprofiling of nitrogen patches in paddy soil: Analysis of spatiotemporal nutrient heterogeneity at the microscale. Scientific Reports, 2016, 6: 27064
[17] de Souza CR, Morel JD, Santos ABM, et al. Small-scale edaphic heterogeneity as a floristic-structural complexity driver in Seasonally Dry Tropical Forests tree communities. Journal of Forestry Research, 2020, 31: 2347-2357
[18] 杨昆, 管东生. 林下植被的生物量分布特征及其作用. 生态学杂志, 2006, 25(10): 1252-1256
[19] 张利荣, 李惠通, 郑立津, 等. 不同林龄杉木人工林的林下植被与土壤理化特性. 亚热带农业研究, 2021, 17(3): 165-172
[20] Grime JP. Benefits of plant diversity to ecosystems: Immediate, filter and founder effects. Journal of Ecology, 1998, 86: 902-910
[21] Bardgett RD. Causes and consequences of biological diversity in soil. Zoology, 2002, 105: 367-374
[22] 刘丽, 段争虎, 汪思龙, 等. 不同发育阶段杉木人工林对土壤微生物群落结构的影响. 生态学杂志, 2009, 28(12): 2417-2423
[23] 霍常富, 王朋, 陈龙池, 等. 杉木人工林蓄积量和生态系统碳数量成熟龄的关系. 中南林业科技大学学报, 2018, 38(9): 94-99
[24] 肖复明, 汪思龙, 杜天真, 等. 湖南会同林区杉木人工林呼吸量测定. 生态学报, 2005, 25(10): 2514-2519
[25] Yang QP, Zhang WD, Li RS, et al. Different responses of non-structural carbohydrates in above-ground tissues/organs and root to extreme drought and re-watering in Chinese fir (Cunninghamia lanceolata) saplings. Trees-Structure and Function, 2016, 30: 1863-1871
[26] 张瑛, 徐庆, 高德强, 等. 湖南会同不同林分类型杉木人工林凋落物水文效应. 林业科学研究, 2021, 37(6): 81-89
[27] 李媛良, 汪思龙, 颜绍馗. 杉木人工林剔除林下植被对凋落层养分循环的短期影响. 应用生态学报, 2011, 22(10): 2560-2566
[28] 王清奎, 汪思龙, 冯宗炜. 杉木纯林与常绿阔叶林土壤活性有机碳库的比较. 北京林业大学学报, 2006, 28(5): 1-6
[29] Liu X, Zhao WR, Meng MJ, et al. Comparative effects of simulated acid rain of different ratios of SO₄^2- to NO₃^- on fine root in subtropical plantation of China. Science of the Total Environment, 2018, 618: 336-346
[30] 王娇, 关欣, 张伟东, 等. 杉木幼苗生物量分配格局对氮添加的响应. 植物生态学报, 2021, 45(11): 1231-1240
[31] Vergutz L, Manzoni S, Porporato A, et al. Global resorption efficiencies and concentrations of carbon and nutrients in leaves of terrestrial plants. Ecological Monographs, 2012, 82: 205-220
[32] Tully KL, Wood TE, Schwantes AM, et al. Soil nutrient availability and reproductive effort drive patterns in nutrient resorption in Pentaclethra macroloba. Ecology, 2013, 94: 930-940
[33] Hofmann K, Heuck C, Spohn M. Phosphorus resorption by young beech trees and soil phosphatase activity as dependent on phosphorus availability. Oecologia, 2016, 181: 369-379
[34] Wang M, Murphy MT, Moore TR. Nutrient resorption of two evergreen shrubs in response to long-term fertilization in a bog. Oecologia, 2014, 174: 365-377
[35] Drenovsky RE, Pietrasiak N, Short TH, et al. Global temporal patterns in plant nutrient resorption plasticity. Global Ecology and Biogeography, 2019, 28: 728-743
[36] Wright IJ, Cannon K. Relationships between leaf life-span and structural defences in a low-nutrient, sclerophyll flora. Functional Ecology, 2001, 15: 351-359
[37] Aerts R. Nutrient resorption from senescing leaves of perennials: Are there general patterns? Journal of Eco-logy, 1996, 84: 597-608
[38] Han W, Tang L, Chen Y, et al. Relationship between the relative limitation and resorption efficiency of nitrogen vs. phosphorus in woody plants. PLoS One, 2013, 8(12): e83366
[39] Deng Q, Hui DF, Dennis S, et al. Responses of terrestrial ecosystem phosphorus cycling to nitrogen addition: A meta-analysis. Global Ecology and Biogeography, 2017, 26: 713-728
[40] 陶宝先, 王晶东, 陈庆海, 等. 氮添加对黄河三角洲滨海湿地芦苇养分再吸收效率的影响. 生态学报, 2022, 42(3): 914-921
[41] van Heerwaarden LM, Toet S, Aerts R. Current mea-sures of nutrient resorption efficiency lead to a substantial underestimation of real resorption efficiency: Facts and solutions. Oikos, 2003, 101: 664-669