Spatial variability of soil erosion and soil quality on hillslopes in the Chinese Loess Plateau
文献类型:期刊论文
作者 | Li, Y.(李勇)1,2; Lindstrom, M. J.3; Zhang, J.(张建辉)1![]() |
刊名 | Acta Geologica Hispanica
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出版日期 | 2000 |
卷号 | 35期号:3-4页码:261-270 |
关键词 | Conservation Methods and Techniques Soil Science |
ISSN号 | 0567-7505 |
通讯作者 | Li, Y.(李勇) |
合作状况 | 国际 |
英文摘要 | Soil erosion rates and soil quality indicators were measured along two hillslope transects in the Loess Plateau near Yan'an, China. The objectives were to: (a) quantify spatial patterns and controlling processes of soil redistribution due to water and tillage erosion, and (b) correlate soil quality parameters with soil redistribution along the hillslope transects for different land use management systems. Water erosion data were derived from 137Cs measurements and tillage erosion from the simulation of a Mass Balance Model along the hillslope transects. Soil quality measurements, i.e. soil organic matter, bulk density and available nutrients were made at the same sampling locations as the 137Cs measurements. Results were compared at the individual site locations and along the hillslope transect through statistical and applied time series analysis. The results showed that soil loss due to water erosion and soil deposition from tillage are the dominant soil redistribution processes in range of 23-40 m, and soil deposition by water erosion and soil loss by tillage are dominant processes occurring in range of more than 80 m within the cultivated landscape. However, land use change associated with vegetation cover can significantly change both the magnitudes and scale of these spatial patterns within the hillslope landscapes. There is a strong interaction between the spatial patterns of soil erosion processes and soil quality. It was concluded that soil loss by water erosion and deposition by tillage are the main cause for the occurrence of significant scale dependency of spatial variability of soil quality along hillslope transects.
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语种 | 英语 |
公开日期 | 2011-08-19 |
源URL | [http://192.168.143.20:8080/handle/131551/3371] ![]() |
专题 | 成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前) 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.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, P.O. Box 417, Chengdu 610041, China 2.Institute for Application of Atomic Energy Agency, CAAS, Beijing 100094, China 3.N.C. Soil Conservation Research Laboratory, 803 Iowa Ave, Morris, MN 56267, USA |
推荐引用方式 GB/T 7714 | Li, Y.,Lindstrom, M. J.,Zhang, J.,et al. Spatial variability of soil erosion and soil quality on hillslopes in the Chinese Loess Plateau[J]. Acta Geologica Hispanica,2000,35(3-4):261-270. |
APA | Li, Y.,Lindstrom, M. J.,Zhang, J.,&Yang, J..(2000).Spatial variability of soil erosion and soil quality on hillslopes in the Chinese Loess Plateau.Acta Geologica Hispanica,35(3-4),261-270. |
MLA | Li, Y.,et al."Spatial variability of soil erosion and soil quality on hillslopes in the Chinese Loess Plateau".Acta Geologica Hispanica 35.3-4(2000):261-270. |
入库方式: OAI收割
来源:成都山地灾害与环境研究所
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