|Table of Contents|

Study on Soil Erosion Types in Three-river Headstream Region(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2009年第04期
Page:
423-426
Research Field:
环境地学
Publishing date:

Info

Title:
Study on Soil Erosion Types in Three-river Headstream Region
Author(s):
WU Wan-zhen;  LIU Feng-gui;  CHEN Qiong;  FEI Du-qiu
(School of Life and Geography Science, Qinghai Normal University, Xining 810008, Qinghai, China)
Keywords:
Three-river Headstream region;  soil erosion;  freeze-thaw erosion;  ecological construction
PACS:
S157
DOI:
-
Abstract:
The increasingly warm global climate, combined with the impact of human factors, has been making the snow line rising in the Three-river Headstream region, leading to backing of glaciers, reducing of precipitation and streamflow, pasture degradation and soil desertification, which makes the originally fragile ecological environment worse. Based on the current actual situation in the Three-river Headstream region, this paper analyzes the background and endogenetic processes of soil erosion, and summarizes the characteristics of the types of soil erosion, with the focus on the scope, intensity and distribution law of freeze-thaw erosion and its evaluation and index system. The result shows that there exists widely spread freeze-thaw erosion, clear geographical distribution of freeze-thaw erosion of different intensity and marked differences between the distribution areas of freeze-thaw erosion in the Three-river Headstream region.

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Last Update: 2009-12-20