An interaction between vertical and lateral movements of soil constituents by tillage in a steep-slope landscape

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 > 山地表生过程与生态调控重点实验室

	An interaction between vertical and lateral movements of soil constituents by tillage in a steep-slope landscape
	Zhang, J. H.1,2 ; Wang, Y.3 ; Jia, L. Z.1,2; Zhang, Z. H.1,2
刊名	CATENA
	2017-05-01
卷号	152 页码:292-298
关键词	Cs-137 residual rate Soil constituent Vertical transfer Lateral transfer Soil redistribution Tillage erosion
ISSN号	0341-8162
通讯作者	J.H. Zhang
英文摘要	The interaction between vertical and lateral movements of soil constituents by tillage needs to be addressed to better understand the transfer processes of soil constituents on a hillslope. In this experiment, traditional tillage by consecutive hoeing during a few days and the cesium -137 (Cs-137) tracing were performed in the Sichuan Basin, China to demonstrate direct effects of intensive tillage on the vertical redistribution of soil constituents and the interaction between vertical and lateral transfers of soil constituents. The changes in Cs-137 residual rates showed that intensive downslope movement of soil by tillage occurred along the transect of slopes, and the lateral transfer of those soil constituents proceeded in the same direction as the soil movement by tillage. The vertical transfer patterns differed from one another for the upper, middle, and lower slope positions. At the upper slope positions, intensive tillage notably decreased the concentrations of soil organic carbon (SOC) and total nitrogen (TN) in the whole soil profile. At the middle and lower slope positions, SOC concentrations in the surface soil layer (0-15 cm) markedly declined after intensive tillage, suggesting that the downslope movement of soil by tillage translocated the soil with low concentrations of SOC and TN derived from upslope towards the middle and lower slopes. The decreases in SOC and TN of the surface soil exerted an important impact on the underlying soil near the surface soil due to the vertical transfer of soil constituents by mixture effects of tillage. Significant changes in the depth distribution pattern of soil constituents by intensive tillage occurred close to the upslope and downslope boundaries of the field Our results revealed that the vertical movement of soil constituents interacted with their downslope movement under intensive tillage, which resulted in a chain transfer process of soil constituents: effects of the vertical transfer at all landscape positions on the lateral transfer along the transect of slopes, and conversely, effects of the lateral transfer on the vertical transfer.
WOS标题词	Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
类目[WOS]	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
研究领域[WOS]	Geology ; Agriculture ; Water Resources
关键词[WOS]	CS-137 MEASUREMENTS ; ORGANIC-CARBON ; EROSION RATES ; CROP YIELD ; REDISTRIBUTION ; TRANSLOCATION ; CHINA ; LIMITATIONS ; HILLSLOPES ; CESIUM-137
收录类别	SCI
语种	英语
WOS记录号	WOS:000395218600028
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/18584]
专题	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, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China 3.Sichuan Agr Univ, Coll Water Conservancy & Hydropower Engn, Yaan 625014, Peoples R China
推荐引用方式 GB/T 7714	Zhang, J. H.,Wang, Y.,Jia, L. Z.,et al. An interaction between vertical and lateral movements of soil constituents by tillage in a steep-slope landscape[J]. CATENA,2017,152:292-298.
APA	Zhang, J. H.,Wang, Y.,Jia, L. Z.,&Zhang, Z. H..(2017).An interaction between vertical and lateral movements of soil constituents by tillage in a steep-slope landscape.CATENA,152,292-298.
MLA	Zhang, J. H.,et al."An interaction between vertical and lateral movements of soil constituents by tillage in a steep-slope landscape".CATENA 152(2017):292-298.