Rainfall and Tillage Impacts on Soil Erosion of Sloping Cropland with Subtropical Monsoon Climate - A Case Study in Hilly Purple Soil area, China

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2015 > Vol12 No.1

	Rainfall and Tillage Impacts on Soil Erosion of Sloping Cropland with Subtropical Monsoon Climate - A Case Study in Hilly Purple Soil area, China
	Tang Jia-liang1 ; Cheng Xun-qiang1 ; Zhu Bo1 ; Gao Mei-rong1 ; Wang Tao1 ; Zhang Xi-feng1 ; Zhao Pei1 ; You Xiang 2
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2015
卷号	12 期号:1 页码:134-144
关键词	Soil erosion Purple soil Tillage types Rainfall intensity Cluster analysis
ISSN号	1672-6316
通讯作者	ZHU Bo
英文摘要	Under global warming, storm events tend to intensify, particularly in monsoon-affected regions. As an important agricultural area in China, the purple soil region in the Sichuan Basin, where it has a prevailing monsoon climate, is threatened by serious soil erosion. Tillage operations alter runoff and soil erosion processes on croplands by changing the physical properties of the soil surface. To clarify the relationship between tillage and soil erosion in the purple soil region, three different tillage practices in this region were investigated at the plot scale over 4 years: bare land with minimum tillage (BL), conventional tillage (CT) and seasonal no-tillage ridges (SNTR) which was initially designed to prevent soil erosion by contoured ridges and no-tillage techniques. The results showed that although there were no significant differences in the surface runoff and soil erosion among the three practices, BL caused relatively high surface runoff and soil erosion, followed by CT and SNTR. Classification and comparison of the rainfall events based on cluster analysis (CA) verified that the surface runoff was not significantly different between most intensive event and long intensive events but was significantly different between most intensive and short and medium-duration events. Only the rainfall events with the highest rainfall intensity could trigger serious soil erosion, up to moo kg ha(-1) in the region. Further detailed investigations on the effects of tillage operations on the soil erosion in a subtropical region with a monsoon climate are needed to provide a basis for modeling catchments and designing better management practices.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	SICHUAN BASIN ; LAND-USE ; RUNOFF ; SEDIMENT ; PATTERNS ; AGRICULTURE ; MANAGEMENT ; CATCHMENT ; SYSTEM ; FLUXES
收录类别	SCI
语种	英语
WOS记录号	WOS:000348918000011
公开日期	2015-01-16
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/7697]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2015_Vol12 No.1 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Mt Environm Evolut & Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Prov Monitoring Stn Soil & Water Conservat, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Tang Jia-liang,Cheng Xun-qiang,Zhu Bo,et al. Rainfall and Tillage Impacts on Soil Erosion of Sloping Cropland with Subtropical Monsoon Climate - A Case Study in Hilly Purple Soil area, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2015,12(1):134-144.
APA	Tang Jia-liang.,Cheng Xun-qiang.,Zhu Bo.,Gao Mei-rong.,Wang Tao.,...&You Xiang.(2015).Rainfall and Tillage Impacts on Soil Erosion of Sloping Cropland with Subtropical Monsoon Climate - A Case Study in Hilly Purple Soil area, China.JOURNAL OF MOUNTAIN SCIENCE,12(1),134-144.
MLA	Tang Jia-liang,et al."Rainfall and Tillage Impacts on Soil Erosion of Sloping Cropland with Subtropical Monsoon Climate - A Case Study in Hilly Purple Soil area, China".JOURNAL OF MOUNTAIN SCIENCE 12.1(2015):134-144.