[1]GUO Honglei,ZHOU Qigang.Effect of Land Use Change on Ecosystem Service Value Pre and Post the Water Storage in the Three Gorges Reservoir Area[J].Research of Soil and Water Conservation,2016,23(05):222-228.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 05
Page number:
222-228
Column:
Public date:
2016-10-28
- Title:
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Effect of Land Use Change on Ecosystem Service Value Pre and Post the Water Storage in the Three Gorges Reservoir Area
- Author(s):
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GUO Honglei, ZHOU Qigang
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Tourism and Land Resources School of Chongqing Technology and Business University, Chongqing 400067
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- Keywords:
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Three Gorges Reservoir area; land use; ecosystem service value; sensitivity index
- CLC:
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F301.24
- DOI:
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- Abstract:
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With the completion of water storage and the progress of urbanization in the Three Gorges Reservoir Area, the land use structure has changed significantly, and the corresponding ecosystem service value has changed. Taking three periods TM images of the Three Gorges Reservoir Area as the data source, this paper uses the RS and GIS technology to extract the land use map of each period, analyze the quantity, change state, transfer tendency of the type of land use and the characteristics of land use degree, study the effect of land use change on ecosystem service value pre and post the water storage in the Three Gorges Reservoir Area. The accuracy of the results is verified by the sensitivity index model in the study. The results indicate that the quantity of cultivated land, grass land, forest land, unused land decreased and construction land, water area increased from 2000 to 2014. At the same time, the land use dynamic degree were different of each land class, construction land and water area dynamic degree were high, while the grass land, cultivated land and forest land dynamic degree were very low. During 2000—2014, the value of ecosystem services in Three Gorges Reservoir Area shows a trend of decreasing, the ecosystem service value have increased 0.63 billion yuan. All of the land use sensitivity index are less than 1. The value of ecosystem services in the study area lack of flexibility on the ecological value coefficient. The results are credible. Research results are helpful to understand the characteristics of land use changes in recent 13 years, and the results could provide reference value for the adjustment of land use structure and environmental protection in the Three Gorges Reservoir area.