[1]LU Zhouyangfan,XU Duanyang,ZHANG Xujiao,et al.Impact of Land Use Change on Ecosystem Services in Arid Desert Region of Alxa[J].Research of Soil and Water Conservation,2019,26(06):296-302.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 06
Page number:
296-302
Column:
Public date:
2019-10-17
- Title:
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Impact of Land Use Change on Ecosystem Services in Arid Desert Region of Alxa
- Author(s):
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LU Zhouyangfan1,2, XU Duanyang2, ZHANG Xujiao1, ZHAO Zhirong1,2, ZHANG Xiaoyu2
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1. China University of Geosciences, Beijing 100083, China;
2. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
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- Keywords:
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arid desert area; ecosystem services; land use change; InVEST model; Alxa
- CLC:
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F301.2;F062.2;X171
- DOI:
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- Abstract:
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In order to explore the response of ecosystem services to land use change and support the sustainable development of ecology-economy-society in arid desert areas, land use is one of the most important driving forces leading to the change of ecosystem services. Considered the fragile eco-environment and intensive man-land relationship, we selected arid desert region of Alxa as the research region, and analyzed the dynamics of land use change from 2000 to 2015 by using ArcGIS, and assessed its impact on the change of regional Ecosystem Services Value (ESV) by using InVEST model. The results showed that the land use of Alxa had experienced a significant change from 2000 to 2015; the areas of grassland, construction land, cultivated land and water presented the increasing trend, while the areas of unused land and forest had decreased; during the same period, the total ESV in Alxa increased from 102.526 billion yuan to 123.770 billion yuan, which was mainly attributed to the decrease of unused land and the increase of grassland, and this change of land use had a particularly significant impact on the increase of soil conservation service value; from 2000 to 2015, five hot spots with ESV change were observed in Alxa, and the increase of ESV in these regions generally benefited from the implementation of ecological projects in recent years. However, the area of hot spots with ESV change in Alxa Right Banner and Juyanhai Oasis experienced the decreasing trend, and ecology recovery in these regions should be paid more attention in the future.