干旱区生态环境知识资源中心(Arid): A global comparison of soil erosion associated with land use and climate type

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DOI	10.1016/j.geoderma.2019.02.013
	A global comparison of soil erosion associated with land use and climate type
	Xiong, Muqi 1; Sun, Ranhao 1; Chen, Liding 1,2
通讯作者	Sun, Ranhao
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2019
卷号	343 页码:31-39
英文摘要	Soil erosion measurements are important for land management and ecological restoration. However, the current results of these measurements are varied and located in specific areas around the world. Thus far, the impacts of land use and climate on soil erosion are unclear. In this study, a comprehensive database representing 1531 field runoff plots in 27 countries was compiled, comprising soil loss data for 2036 runoff plots, representing 11,439 plot years, and runoff data for 1350 runoff plots, representing 6465 plot years. We analyzed the annual soil loss rate (SL) and annual runoff (R) associated with different land use types and four climate zones (CZs). The results showed that (1) bare lands had the highest mean SL values (10.6-109.2 t.ha(-1).yr(-1)), followed by croplands (3.9-41.8 t.ha(-1) yr(-1)), orchards (23.5 t-ha(-1).yr(-1)), grasslands (0.3-3.6 tha shrublands (0.3-1.57 t.ha(-1).yr(--1)) and forestlands (0.2-0.6 t.ha(-1).yr(-1)). The correlation between SL and R was positive (p < 0.01) in anthropogenically disturbed lands (bare lands, croplands and orchards), whereas the correlation was not significant in natural lands (forestland, grassland and shrubland). (2) In general, the anthropogenically disturbed lands in the tropical CZ had the highest R and SL values, followed by the temperate, cold and arid CZs. Runoff plots in the cold CZ had comparatively high SL values, likely due to the active freeze-thaw cycle. With respect to natural lands, the mean SL values were similar (0.2-0.7 t.ha(-1).yr(-1)) between different CZs apart from grasslands. The overgrazing of grasslands in temperate zones led to high SL (3.6 t.ha(-1).yr(-1)). (3) Soil conservation techniques were highly efficient in reducing R (by 22% for croplands and by 58% for orchards) and SL (by 59% for croplands and by 81% for orchards), especially in the temperate zone. This study provides a systematic comparison of soil erosion measurements according to different land use types and CZs. The results can be used for improvement of the model coefficient and optimization of management strategies in specific regions.
英文关键词	Soil loss Runoff Land use Climate zone Soil conservation technique
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000463304300004
WOS关键词	WATER EROSION ; RAINFALL EROSIVITY ; SURFACE RUNOFF ; RILL EROSION ; RATES ; METAANALYSIS ; VEGETATION ; EUROPE ; CHINA ; SCALE
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215931
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xiong, Muqi,Sun, Ranhao,Chen, Liding. A global comparison of soil erosion associated with land use and climate type[J],2019,343:31-39.
APA	Xiong, Muqi,Sun, Ranhao,&Chen, Liding.(2019).A global comparison of soil erosion associated with land use and climate type.GEODERMA,343,31-39.
MLA	Xiong, Muqi,et al."A global comparison of soil erosion associated with land use and climate type".GEODERMA 343(2019):31-39.