Challenging the land degradation in China's Loess Plateau: Benefits, limitations, sustainability, and adaptive strategies of soil and water conservation

doi:10.1016/j.ecoleng.2018.11.018

	Challenging the land degradation in China's Loess Plateau: Benefits, limitations, sustainability, and adaptive strategies of soil and water conservation
	Jiang, Chong 1,2,3; Zhang, Haiyan 4; Wang, Xinchi 5; Feng, Yuqing 6; Labzovskii, Lev 7
刊名	ECOLOGICAL ENGINEERING
	2019-02-01
卷号	127 页码:135-150
关键词	Land degradation Soil erosion Soil and water conservation Ecological restoration Soil moisture
ISSN号	0925-8574
DOI	10.1016/j.ecoleng.2018.11.018
通讯作者	Jiang, Chong(jiangchong1987@gmail.com)
英文摘要	Land degradation is a global environmental problem that threatens human safety and socioeconomic development. In order to alleviate severe soil erosion, China has implemented historically unprecedented large-scale afforestation. In this study, we selected the most severely eroded Loess Plateau as a case, to assess the effectiveness of soil and water conservation (SWC) efforts based on the Revised Universal Soil Loss Equation. In addition, the underlying drivers for soil erosion changes and hydrological effects of SWC were investigated, and finally the potential policy implications of our findings were discussed. The soil erosion intensity from 2000 to 2015 was weakened largely due to favorable climate conditions and SWC efforts, which promoted vegetation restoration and enhanced soil retention. However, there was a significant trade-off between water provision and soil retention functions. The excessively artificial afforestation reduced sediment yield but depleted surface runoff. Furthermore, artificial afforestation and increasing irrigation water consumption overused groundwater resources and finally lowered groundwater table. The SWC efforts characterized by artificial afforestation induced soil moisture declining, particularly for the conversion type of farmland to forest/ shrub. Our results suggested that afforestation might be a poor choice in arid and semiarid regions, because it did not consider local precipitation conditions, and have exacerbated water shortages and offset SWC efforts. Therefore, the future ecological restoration efforts should be transformed from simple species-based measures to optimal plant species combinations to minimize the tradeoff between water yield and soil retention. The strategies for ecological restoration of drylands should also account for water balance to ensure effectiveness and sustainability.
资助项目	Guangdong Academy of Sciences (GDAS)' Project of Science and Technology Development[2019GDASYL-0103001] ; Guangdong Academy of Sciences (GDAS)' Project of Science and Technology Development[2017GDASCX-0701]
WOS关键词	YELLOW-RIVER BASIN ; INNER MONGOLIA REACH ; ECOSYSTEM SERVICES ; CLIMATE-CHANGE ; ECOLOGICAL RESTORATION ; MIDDLE REACHES ; SEDIMENT LOAD ; EROSION RISK ; AFFORESTATION ; VEGETATION
WOS研究方向	Environmental Sciences & Ecology ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000455632500014
资助机构	Guangdong Academy of Sciences (GDAS)' Project of Science and Technology Development
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/50455]
专题	中国科学院地理科学与资源研究所
通讯作者	Jiang, Chong
作者单位	1.Guangzhou Inst Geog, Guangdong Open Lab Geospatial Informat Technol &, Guangzhou 510070, Guangdong, Peoples R China 2.Guangzhou Inst Geog, Key Lab Guangdong Utilizat Remote Sensing & Geog, Guangzhou 510070, Guangdong, Peoples R China 3.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 5.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China 6.China Univ Geosci Beijing, Sch Water Resources & Environm, Beijing 100083, Peoples R China 7.Natl Inst Meteorol Sci, Div Climate Res, Seogwipo Si 63568, Jeju Do, South Korea
推荐引用方式 GB/T 7714	Jiang, Chong,Zhang, Haiyan,Wang, Xinchi,et al. Challenging the land degradation in China's Loess Plateau: Benefits, limitations, sustainability, and adaptive strategies of soil and water conservation[J]. ECOLOGICAL ENGINEERING,2019,127:135-150.
APA	Jiang, Chong,Zhang, Haiyan,Wang, Xinchi,Feng, Yuqing,&Labzovskii, Lev.(2019).Challenging the land degradation in China's Loess Plateau: Benefits, limitations, sustainability, and adaptive strategies of soil and water conservation.ECOLOGICAL ENGINEERING,127,135-150.
MLA	Jiang, Chong,et al."Challenging the land degradation in China's Loess Plateau: Benefits, limitations, sustainability, and adaptive strategies of soil and water conservation".ECOLOGICAL ENGINEERING 127(2019):135-150.