How effective are soil and water conservation measures (SWCMs) in reducing soil and water losses in the red soil hilly region of China? A meta-analysis of field plot data

doi:10.1016/j.scitotenv.2020.139517

	How effective are soil and water conservation measures (SWCMs) in reducing soil and water losses in the red soil hilly region of China? A meta-analysis of field plot data
	Chen, Jia 2,3; Xiao, Haibing 4; Li, Zhongwu 2,5,6; Liu, Cheng 1; Ning, Ke 5,6; Tang, Chongjun 2,3,7
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020-09-15
卷号	735 页码:13
关键词	Soil and water conservation measures Water erosion control Runoff reduction Meta-analysis Runoff plots
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.139517
通讯作者	Li, Zhongwu(lizw@hnu.edu.cn)
英文摘要	Anthropogenic pressure coupled with high rainfall and diverse heterogeneous landscapes (e.g., land use and topography) has resulted in severe water erosion in the red soil hilly region (RSHR) of China. Soil and water conservation measures (SWCMs) have been extensively implemented, and their effects on runoff and sediment control have been widely tested at plot scales. However, it is difficult to gain an overview of the efficiency of SWCMs due to the difficulty of directly upscaling field observations to regional scales. We conducted a meta-analysis of 498 field plots covering 53 sites in the RSHR to evaluate the efficiency of different SWCMs and identify optimal conservation practices. The results were as follows: (i) SWCMs involving erosion control (92%) had a greater efficiency than those focusing on runoff reduction (73%). (ii) The implementation of combined measures was more effective than single measures for reducing runoff and soil loss. (iii) All thirty SWCMs showed a significant effect with respect to runoff and sediment control, except for contour tillage effect on reduction of soil loss. (iv) The maximum and minimum ratios between runoff and sediment reduction were found in orchard and cropland, respectively. (v) Six measures, mulching, tree crop + grass, tree crop + hedgerows, tree crop + grass cover + terrace, tree crop + hedgerows + terrace and hedgerows + contour tillage, can be recommended as high effective SWCMs in the RSHR. This study provides a systematic overview quantifying the factors controlling the effectiveness of SWCMs in the RSHR and can serve as a scientific foundation enabling decision makers to implement suitable SWCMs in mitigating land degradation due to water erosion. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Key Research and Development Program of China[2017YFC0505401]
WOS关键词	EROSION CONTROL ; LOESS PLATEAU ; LAND-USE ; ECOSYSTEM SERVICES ; MULCHING PRACTICES ; RUNOFF ; VEGETATION ; SEDIMENT ; SCALE ; RESTORATION
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000576487500004
资助机构	National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/157045]
专题	中国科学院地理科学与资源研究所
通讯作者	Li, Zhongwu
作者单位	1.Int Res & Training Ctr Eros & Sedimentat, Beijing 100044, Peoples R China 2.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 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China 5.Hunan Normal Univ, Coll Resources & Environm Sci, Changsha 410081, Peoples R China 6.Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Peoples R China 7.Jiangxi Inst Soil & Water Conservat, Jiangxi Prov Key Lab Soil Eros & Prevent, Nanchang 330029, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jia,Xiao, Haibing,Li, Zhongwu,et al. How effective are soil and water conservation measures (SWCMs) in reducing soil and water losses in the red soil hilly region of China? A meta-analysis of field plot data[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,735:13.
APA	Chen, Jia,Xiao, Haibing,Li, Zhongwu,Liu, Cheng,Ning, Ke,&Tang, Chongjun.(2020).How effective are soil and water conservation measures (SWCMs) in reducing soil and water losses in the red soil hilly region of China? A meta-analysis of field plot data.SCIENCE OF THE TOTAL ENVIRONMENT,735,13.
MLA	Chen, Jia,et al."How effective are soil and water conservation measures (SWCMs) in reducing soil and water losses in the red soil hilly region of China? A meta-analysis of field plot data".SCIENCE OF THE TOTAL ENVIRONMENT 735(2020):13.