[1]YANG Yue,HASI·Eerdun,DU Hui-shi,et al.Impacts of Land Use Change on Ecosystem Service Value in Yanchi County of Ningxia Based on RS and GIS[J].Research of Soil and Water Conservation,2014,21(05):100-105.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 05
Page number:
100-105
Column:
Public date:
2014-10-28
- Title:
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Impacts of Land Use Change on Ecosystem Service Value in Yanchi County of Ningxia Based on RS and GIS
- Author(s):
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YANG Yue1,3, HASI·Eerdun1, DU Hui-shi1, SUN Bao-ping2, ZHAO Yan2, ZHAO Rui2, SUN Bai-sheng3
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1. College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China;
2. College of Soil and Water Conversation, Beijing Forestry University, Beijing 100083, China;
3. Hebei Normal University For Nationalities, Chengde, Hebei 067000, China
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- Keywords:
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ecosystem service value; land use change; Yanchi County of Ningxia Hui Autonomous Region
- CLC:
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X171.4;X826
- DOI:
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- Abstract:
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Based on TM image data in 1989, 1995, 1999, 2003, 2006 and 2009 of Yanchi County of Ningxia, the land use data of Yanchi County in each year were extracted by support of RS and GIS technology, and were used to analyze the dynamic change of land use. The land use data were studied for estimating the change of ecosystem service value caused by the land use change of Yanchi County by using the evaluation method of China terrestrial ecosystem services value. The results showed that the changes of land use were obvious during 1989 to 2009. The areas of woodland and construction land had an increasing tendency, while grassland area reduced before and increased after; while cropland and unused land area increased before and reduced after, while water area fluctuated slightly. The ecosystem service value of Yanchi County had an increasing tendency during 1989 to 1995 because the increasing woodland area had played the major role in raising the total ecosystem service value. The grassland accounted for a large proportion of the total ecosystem service value of Yanchi County, with its contribution rate from 49.8% to 60.4%. And the composition of the ecosystem service value of Yanchi County happened benign change for the increasing contribution rate of woodland. The ecosystem service value sensitivity index of each land use type is less than 1, indicating that the ecosystem service value of Yanchi County lacks flexibility on its service value index, and the research results are reliable and believable.