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[1]RUKEYA·Sawut,ABUDUHENI·Abliz,LI Hu,et al.Dynamic Monitoring and Analysis of Ecological Environment in Fukang City Based on RSEI Model[J].Research of Soil and Water Conservation,2020,27(01):283-289,297.

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Dynamic Monitoring and Analysis of Ecological Environment in Fukang City Based on RSEI Model

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 27 Number of periods: 2020 01 Page number: 283-289,297 Column: Public date: 2020-02-20

Title:: Dynamic Monitoring and Analysis of Ecological Environment in Fukang City Based on RSEI Model

Author(s):: RUKEYA·Sawut^1,2, ABUDUHENI·Abliz^1,2,3,5, LI Hu⁴, NIJAT·Kasim^1,2, LI Xiaohang^1,2; (1.College of Resources and Environmental Sciences, Xinjiang University, Urumqi 830046, China; 2.Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China; 3.Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, China; 4.Xinjiang Engineering Center of Satellite Applications, Urumqi 83 000, China; 5.Ecological Postdoctoral Research Station, Xinjiang University, Urumqi 830046, China)

Keywords:: ecological remote sensing index; dynamic change; principal component analysis; Fukang City

CLC:: TP79

DOI:: -

Abstract:: For making timely, quick, it is very important to objectively and quantitatively evaluate the regional environmental changes caused by rapid urbanization by using remote sensing techniques. In this paper, Landsat(TM/OLI)imagery was selected as a main data, and vegetation index(NDVI), wetness index(WET), build-up and soil index(NDBSI), land surface temperature(LST)were calculated on the bases of the remote sensing data(TM/OLI). Principal component analysis was employed to calculate the remote sensing ecological index(RSEI)and environmental quality changes of Fukang City from 2000 to 2016 were monitored and evaluated. The results showed that the ecological quality of Fukang City from 2000—2008 decreased rapidly, and the low-grade RSEI area reached 849.35 km², and make up 25.72% of the total area; from 2008 to 2016, environment quality of Fukang City fell down at a large scale, the low-grade RSEI area increased by 1 601.41 km², and increased two times compared with that in the previous 8 years, and took account of 48.49%, whereas the high-grade RSEI area was only 13.06% of the total area; from 2000—2016, ecological environment quality of Fukang City decreased rapidly, the low-grade RSEI area reached to 1 757.93 km², and counted for 53.23% of total area; the low-grade RSEI area mostly distributed in central and northern parts of the study area in terms of special distribution, the low-grade RSEI area mainly distributed in the new development area, and the change of ecological environment quality of arable land situated in central part and its outside was slight. From comparison of four indices devotion rate in RSEI model, it can be seen that vegetation index(NDVI)of ecological indices showed the largest contribution rates and witness index showed smallest contribution among the 4 indices, which illustrated that arid area excessive anthropogenic activities are the vital factor on degradation of the region environment quality.

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Last Update: 2020-02-25