Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
14
Number of periods:
2007年02期
Page number:
37-39
Column:
Public date:
1900-01-01
- Title:
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Areas of Wind Erosion in China
- Author(s):
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LI Yu-bao
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College of Life and Environmental Sciences, Wenzhou University, Wenzhou, Zhejiang 325027, China
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- Keywords:
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wind erosion; regional scale; areas affected; China agro-climatic zonation
- CLC:
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S157.1
- DOI:
-
-
- Abstract:
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Generalization of wind erosion hazard from a viewpoint of the whole nation found out the climatic pattern decides the areas of wind erosion hazard in China. It was concluded that erosive factors, wind and erodible surface, and restricting factors, such as vegetation cover and moisture, fight each other and results in whether wind erosion occurs. This study diagnosed each agro-climatic subregion which is the third class of "China Agro-Climatic Zonation" by Li Shikui et al. Both croplands and non-croplands were separately diagnosed to find out probabilities for a period of time of erosion hazard to occur in a year. From the east to the west, all the areas of wind erosion hazard for the whole country were finally determined. The results showed that wind erosion hazards cover all the temperate zones, involving 60.9% of the total territorial area of China, among which both croplands and non-croplands in the Northwest arid agro-climatic region are affected by wind erosion, whereas wind erosion hazards hit only croplands in the east monsoon and tibet frigid agro-climatic regions.