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Disentangling the direct and indirect effects of cropland abandonment on soil microbial activity in grassland soil at different depths

文献类型：期刊论文

作者Xu, Hongwei1,5; Qu, Qing6; Chen, Yanhua2; Wang, Minggang3; Liu, Guobin1,5,6; Xue, Sha1,5,6; Yang, Xiaomei4,5,6
刊名CATENA
出版日期2020-11-01
卷号194页码:10
关键词Plant-soil interactions Vegetation restoration Soil enzyme activity Soil nutrients Structural equation models
ISSN号0341-8162
DOI10.1016/j.catena.2020.104774
通讯作者Xue, Sha(xuesha100@163.com)
英文摘要Cropland abandonment strongly affects plant-soil interactions. However, knowledge remains limited about how the production and diversity of plants and soil physicochemical parameters drive changes in soil microbial activity (such as microbial biomass, respiration, and enzyme activity) after cropland abandonment. Here, we investigated a grassland restoration chronosequence (0-30 years) to determine the dynamics of soil microbial biomass, respiration, and enzyme activity in the Loess Hilly, Region (China). Overall, cropland abandonment caused an increase in soil microbial activity primarily in the 0-20 cm soil layers. The metabolic quotient in the 0-10 cm layer decreased linearly with time since abandonment (recovery years). Structural equation models showed that recovery years directly and indirectly affected changes to soil microbial activity. Plant species richness, aboveground biomass, and soil organic carbon explained a large proportion of the variability in soil microbial activity in the 0-20 cm layer. However, the variability in soil microbial activity was mostly explained by plant species richness, belowground biomass, and soil total nitrogen in the 20-50 cm layers. Our results indicate that during recovery after cropland abandonment, changes in soil microbial activity are driven by plant characteristics and soil physicochemical parameters, with different drivers at different soil depths.
WOS关键词ENZYME-ACTIVITIES ; ORGANIC-CARBON ; LOESS PLATEAU ; ECOENZYMATIC STOICHIOMETRY ; NUTRIENT LIMITATION ; RHIZOSPHERE SOIL ; BIOMASS ; DIVERSITY ; RESPONSES ; FOREST
资助项目Natural Science Foundation of China[41771557] ; National Key Research and Development Program of China[2016YFC0501707] ; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-2017]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
WOS记录号WOS:000566699000078
出版者ELSEVIER
资助机构Natural Science Foundation of China ; National Key Research and Development Program of China ; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
源URL[http://ir.igsnrr.ac.cn/handle/311030/156825]  
专题中国科学院地理科学与资源研究所
通讯作者Xue, Sha
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Inst Plant Nutr & Resources, Beijing 100097, Peoples R China
3.Beijing Forestry Univ, Res Ctr Forest Management Engn State Forestry & G, Beijing 100083, Peoples R China
4.Wageningen Univ & Res, Soil Phys & Land Management, NL-6700 AA Wageningen, Netherlands
5.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
6.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Hongwei,Qu, Qing,Chen, Yanhua,et al. Disentangling the direct and indirect effects of cropland abandonment on soil microbial activity in grassland soil at different depths[J]. CATENA,2020,194:10.
APA Xu, Hongwei.,Qu, Qing.,Chen, Yanhua.,Wang, Minggang.,Liu, Guobin.,...&Yang, Xiaomei.(2020).Disentangling the direct and indirect effects of cropland abandonment on soil microbial activity in grassland soil at different depths.CATENA,194,10.
MLA Xu, Hongwei,et al."Disentangling the direct and indirect effects of cropland abandonment on soil microbial activity in grassland soil at different depths".CATENA 194(2020):10.

入库方式： OAI收割

来源：地理科学与资源研究所

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