A series of ecological construction policies were carried out in Hangjinqi, Inner Mongolia after 2001. Based on ecosystem service value assessment method, combined with land use data in 1989, 2001 and 2013, land use and ecosystem service value changes before implementing ecological policies(1989-2001)and after implementing ecological policies (2001-2013) were analyzed and compared. The results showed that compared with before implementing ecological policies, land use changed to a larger extent after implementing ecological policies: the area of woodland increased by 128.40×103 hm2, while the figure was just 2.40×103 hm2 before implementing ecological policies, and the area of desert decreased by 72.00×103 hm2, while the figure was just 2.70×103 hm2 before implementing ecological policies. Besides, through implementing ecological policies the rationality of land use changes improved from 60.12% to 72.03%. Along with land use change, the ecosystem service value of soil formation and protection and water conservation increased by 0.42×109 RMB and 0.34×109 RMB respectively, while the figures were just 0.02×109 RMB and 0.22×109 RMB before implementing ecological policies. The total ecosystem service value increased vigorously by 2.38×109 RMB, which was bigger than the figure of before implementing ecological policies (0.56×109 RMB). Above all, implementing ecological policies could optimize land use structure, improve ecosystem service value by increasing the area of vegetation cover while decreasing the area of desert and enhance soil and water conservation capacity. Meanwhile, the study gives some suggestions to deal with the degradation of water and the irrationality of farmland changes after implementing ecological policies.
Zhao Minmin
,
Zhou Lihua
,
Chen Yong
,
Zhang Jishu
,
Guo Xiuli
,
Wang Rui
. The Influence of Ecological Policies on Changes of Land Use and Ecosystem Service Value in Hangjinqi, Inner Mongolia, China[J]. Journal of Desert Research, 2016
, 36(3)
: 842
-850
.
DOI: 10.7522/j.issn.1000-694X.2015.00164
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