Temporal Change of Soil Erosion Intensity of Reclaimed Lands in Loess Hilly Forest Region

ZHA Xiao chun; TANG Ke li

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Temporal Change of Soil Erosion Intensity of Reclaimed Lands in Loess Hilly Forest Region

- Temporal Change of Soil Erosion Intensity of Reclaimed Lands in Loess Hilly Forest Region
- Bulletin of Soiland Water Conservation Vol. 19, Issue 2, Pages: 5-7(2000)
- 作者机构：
  
  中国科学院水利部水土保持研究所, 陕西杨陵,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：2000
- 稿件说明：
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ZHA Xiao chun, TANG Ke li. Temporal Change of Soil Erosion Intensity of Reclaimed Lands in Loess Hilly Forest Region[J]. Bulletin of Soiland Water Conservation, 2000, 19(2): 5-7.
DOI：

ZHA Xiao chun, TANG Ke li. Temporal Change of Soil Erosion Intensity of Reclaimed Lands in Loess Hilly Forest Region[J]. Bulletin of Soiland Water Conservation, 2000, 19(2): 5-7. DOI：

摘要

以黄土丘陵林区10a径流泥沙观测资料为基础

分析了林地开垦后不同侵蚀年限情况下土壤侵蚀强度的变化。结果发现

随侵蚀年限的增长

土壤侵蚀强度呈明显的增长趋势

平均每年约有10mm的土层被侵蚀掉

到侵蚀的第 10a时

已有100.81mm的土层被侵蚀掉

相当于林地土壤的A层大部分遭到流失。土壤侵蚀强度的增加

土壤质量的下降

土壤性状的恶化

更促使侵蚀程强度的加剧。

Abstract

Using the 10 years observed data about runoff and sediment in the loess hilly forest region

the temporal change of soil erosion intensity in the reclaimed lands was analy zed. The results showed that with the increasing of erosion time

the soil erosion intensity in reclaimed lands would be increased apparently

and there had about 10mm soil layer be eroded away every year. In the 10th year

the 100.81mm depth of soil was eroded away

which was almost all the humus layer. At last

it is pointed that the increase of the erosion intensity

the decease of soil quality and the worse of the soil properties would aggravate the soil erosion intensity seriously.

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Related Author

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Related Institution

College of Urban and Environmental Science, Northwest University, Xian

Institute of Earth Surface System and Hazards, Northwest University, Xian

Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Northwest University, Xian

Department of Resources and Environment, Beijing Normal University, Beijing 100875, PRC

The State Key Laboratory of Soil Erosion and Dryland Farming in Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi Province, PRC

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