Temporal and Spatial Distribution of Soil Erosion on Loess Slope Field under Different Land Use Patterns

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Temporal and Spatial Distribution of Soil Erosion on Loess Slope Field under Different Land Use Patterns

更新时间：2024-11-07

- Temporal and Spatial Distribution of Soil Erosion on Loess Slope Field under Different Land Use Patterns
- Issue 5, Pages: 42-44(2003)
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- Published：2003
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Temporal and Spatial Distribution of Soil Erosion on Loess Slope Field under Different Land Use Patterns[J]. 2003, (5): 42-44.
DOI：

Temporal and Spatial Distribution of Soil Erosion on Loess Slope Field under Different Land Use Patterns[J]. 2003, (5): 42-44. DOI：

摘要

本研究利用定位土芯Eu(europium)示踪新方法

研究黄土坡地不同利用方式下土壤侵蚀的时空分布规律.结果表明

该方法对以片蚀和细沟侵蚀为主的黄土坡地是适用的;土壤侵蚀的时间分布与降雨量的年时间分布相一致

过程性暴雨期表现为全年土壤侵蚀的高峰期;在复合坡面

随坡面的陡、缓、凹

土壤侵蚀表现强、弱、沉积;相同坡度和坡长条件下

幼龄核桃园的土壤侵蚀速率＞刺槐林地＞荒草地＞苜蓿地.

Abstract

Using the new method

namely Fixed Soil Core Eu Tracer(FSCET)

the temporal and spatial distribution of soil erosion was studied on loess slope field under different land use patterns. The results show that the new method is applicable to loess slope fields where sheet and rill erosion are dominate erosion; temporal distribution of erosion is consistent with that of rainfall; rainstorm period is the peak period of soil erosion in a year; in the complex landscapes

the steep and gentle slopes appear to be strong or week erosion and deposition

which can be quantified by vertical distribution of soil erosion; soil erosion rate decrease in the order: young walnut>Chinese scholartree>waste grassland>alfalfa.

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Temporal and Spatial Distribution of Soil Erosion on Loess Slope Field under Different Land Use Patterns

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