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Interactive Influence of Soil Erosion and Cropland Revegetation on Soil Enzyme Activities and Microbial Nutrient Limitations in the Loess Hilly-Gully Region of China

文献类型：期刊论文

作者Tang, Fangwang1; Yao, Yufei1; Song, Jinxi1,2; Wang, Chengcheng1; Liu, Yu1
刊名AGRONOMY-BASEL
出版日期2022-11-01
卷号12期号:11页码:14
关键词agroecosystem revegetation soil erosion deposition enzyme activity microbial metabolic limitation
DOI10.3390/agronomy12112796
通讯作者Yao, Yufei(yufyao@nwu.edu.cn) ; Song, Jinxi(jinxisong@nwu.edu.cn)
英文摘要Soil erosion is a major form of land degradation, especially in agroecosystems, which has been effectively controlled by vegetation restoration. However, the interactive role of erosion and cropland revegetation on soil enzyme activities and microbial nutrient limitations is less understood. To address this issue, we examined carbon (C), nitrogen (N), and phosphorus (P) in bulk soils and microbial biomass, enzyme activities, and microbial nutrient limitations in the 0-200 cm soils in eroded and deposited landscapes occupied by cropland, revegetated forest, and grassland. The results showed that the activities of C-, N-, and P-acquiring enzymes were larger in the deposited landscape than in the eroded landscape for 0-20 cm soils in forest and grassland but not in cropland. Microbial metabolism was co-limited by N and P, and the threshold element ratio (TERL) indicated that P was the most limiting factor. Microbial N limitation was lower in the deposited than the eroded zone, especially in surface soils in revegetated forest and grassland. The TERL value was larger at the deposited than at the eroded zone, and a greater difference was found in the surface soils of forest and grassland. Microbial nutrient limitations were mostly explained by C/P and N/P. Conclusively, the deposited areas were characterized by ameliorated enzyme activities, decreased microbial N limitation but relatively strengthened microbial P limitation compared to the eroded area, and such variations existed in the revegetated forest and grassland but not in the cropland, which thus contributes to a better understanding of C and nutrient cycling for agroecosystems and revegetation ecosystems in eroded environments.
WOS关键词ECOENZYMATIC STOICHIOMETRY ; ORGANIC-CARBON ; VEGETATION RESTORATION ; LAND-USE ; NITROGEN ; PLATEAU ; RESPONSES ; IMPACT ; DYNAMICS
资助项目National Natural Science Foundation of China[42107344] ; National Natural Science Foundation of China[42041004] ; China Postdoctoral Science Foundation[2021T140558] ; China Postdoctoral Science Foundation[2020M683699XB] ; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-202106]
WOS研究方向Agriculture ; Plant Sciences
语种英语
WOS记录号WOS:000883851200001
出版者MDPI
资助机构National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
源URL[http://ir.igsnrr.ac.cn/handle/311030/187027]  
专题中国科学院地理科学与资源研究所
通讯作者Yao, Yufei; Song, Jinxi
作者单位1.Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Xianyang 712100, Peoples R China
推荐引用方式
GB/T 7714		 Tang, Fangwang,Yao, Yufei,Song, Jinxi,et al. Interactive Influence of Soil Erosion and Cropland Revegetation on Soil Enzyme Activities and Microbial Nutrient Limitations in the Loess Hilly-Gully Region of China[J]. AGRONOMY-BASEL,2022,12(11):14.
APA Tang, Fangwang,Yao, Yufei,Song, Jinxi,Wang, Chengcheng,&Liu, Yu.(2022).Interactive Influence of Soil Erosion and Cropland Revegetation on Soil Enzyme Activities and Microbial Nutrient Limitations in the Loess Hilly-Gully Region of China.AGRONOMY-BASEL,12(11),14.
MLA Tang, Fangwang,et al."Interactive Influence of Soil Erosion and Cropland Revegetation on Soil Enzyme Activities and Microbial Nutrient Limitations in the Loess Hilly-Gully Region of China".AGRONOMY-BASEL 12.11(2022):14.

入库方式： OAI收割

来源：地理科学与资源研究所

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