[1]LIN Jing-lan,CHEN Zhi-ming,HUANG Yan-he,et al.Study on the Charactistics of Spatial Distribution of Slope Disintegration Erosion in Anxi County[J].Research of Soil and Water Conservation,2009,16(06):63-68.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
16
Number of periods:
2009 06
Page number:
63-68
Column:
Public date:
2009-12-20
- Title:
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Study on the Charactistics of Spatial Distribution of Slope Disintegration Erosion in Anxi County
- Author(s):
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LIN Jing-lan1,3, CHEN Zhi-ming2, HUANG Yan-he3, XU Yong-ming2, JIANG Fang-shi3, GE Hong-li3
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1. Fujian Office of Soil and Water Conservation, Fuzhou 350003, China;
2. Anxi Monitoring Station of Soil and Water Conservation, Anxi, Fujian 350003, China;
3. Department of Resources and Environment Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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- Keywords:
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collapsing hill; spatial distribution; regionalization; soil erosion
- CLC:
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S157.1
- DOI:
-
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- Abstract:
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Being as its tremendous amount of erosion and severe disaster, slope disintegration is one type of the most severe erosion. Taking Anxi county as an example, one of the most slope disintegration area in Fujian province, the spatial distribution characteristics of slope disintegration was analyzed, which provided support for controlling slope disintegration in Anxi county, and also could be as example for other similar areas in the whole county. The results showed that Anxi county was the most severe erosion county of slope disintegration in the whole Fujian province as it having 12 828 slope disintegration events and an erosion area of 2 305.42 hm2, which occupied 49.29 percent, 31.41 percent of amount and area respectively in the whole province, and 75.15 percent of them were in the developing process, ranking the first in the province. Anxi county had all shape of slope disintegration, and ladle, mixed and arc type were prominent types. All 24 towns in the county had slope disintegration, but the east area, especially the southeast area of Guanqiao town and Longmen town, had the higher density. From the southeast area to the northwest area, the spatial distribution of slope disintegration, including its amounts, erosion area, class of size, shape and development process, showed a trend of gradually decreasing. Therefore, the control layout should stress on the southeast area of Guanqiao and Longmen town as a whole, with the trend of gradually decreasing control from southeast to northwest.