[1]LI Chuang,LIU Ji-ping.Land Use/Cover Change and Responses of Eco-security in the Middle-Lower Reaches of Huolin River Watershed[J].Research of Soil and Water Conservation,2012,19(01):174-178.
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Land Use/Cover Change and Responses of Eco-security in the Middle-Lower Reaches of Huolin River Watershed
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 01
Page number:
174-178
Column:
Public date:
2012-02-20
- Title:
- Land Use/Cover Change and Responses of Eco-security in the Middle-Lower Reaches of Huolin River Watershed
- Keywords:
- land use change; ecological security; landscape pattern index; temporal and spatial variety; Huolin River watershed
- CLC:
- F301.24
- DOI:
- -
- Abstract:
- Based on the data of land use of the middle-lower reaches of Huolin River watershed in 1970 and 2005, supported by GIS and RS, and with the indices of fragmentation, isolation and dominance, and of vulnerability of landscape types, the temporal and spatial characteristic of landscape ecological security in Huolin River watershed was analyzed. The results showed that there were different change trends for different landscape types in this region, the transformation from one landscape type to another was very complex and that was mainly happened among farmland, woodland and grassland. It was found that the change of landscape structure could strongly influence the temporal and spatial distribution of ecological security index (ESI) under natural and human factors, which might result in the decrease of the degree of ecological security (ESI) during 35 years. The higher ESI (ESI>0.7) was mainly distributed at the northwest, and the lower one at the southeast. Therefore, the alteration character among different landscape types were discovered by using the method of landscape to study on the ESI and then the change tendency was identified and its inner factors of the regional eco-environment might be important for regional eco-construction and natural resource exploitation.
- References:
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