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- Title
乌鲁木齐市生态系统服务价值时空演变研究.
- Authors
杨振民; 刘新平
- Abstract
The spatial changes of land adopted and ecosystem service value in Urumqi during 1980-2018 in the arid region of Northwest China were analyzed based on grid cell, exploratory spatial analysis, ecosystem service change index, improved ecosystem service value equivalent. The results showed that ESV and individual ESV in Urumqi showed a decreasing trend, among which the hydrological regulation and environmental purification function decreased the most, followed by the biological diversity and climate regulation function. The ESV in Urumqi presented a spatial distribution characteristic of high in the south and low in the north and east. From the perspective of time series, there is a trend that the high value region of ESV is further reduced and the low value region is further expanded. From 1980-2018 ESV profit and loss change (ESCI) of Urumqi, the northern Midong Region, the western urban agglomeration area and the area around Glacier No. 1 in the south had a greater ESV loss, while the eastern Chaiwopu Lake and the Salt Lake had a more significant ESV gain. The ESV increment hot spots in Urumqi are mainly distributed in the area around Chaiwopu Lake and Salt Lake in the east. However, the ESV depletion cold spots are mainly distributed in the area around the eastern Midong Region, the urban agglomeration area in the west and the No.1 Glacier in the south. In general, the ESV change hot spot map is consistent with the spatial distribution characteristics of ESCI. The results objectively reflect that the dynamic change law of ecosystem service value in Urumqi and the spatial difference within the region are of great significance to correctly deal with the relationship between development and protection, construct the ecological security barrier in the west of China as well as guard the ecological security boundary.
- Publication
Environmental Science & Technology (10036504), 2021, Vol 44, Issue 4, p226
- ISSN
1003-6504
- Publication type
Article
- DOI
10.19672/j.cnki.1003-6504.2021.04.029