Eco-environmental Monitoring and Evaluation of the Tekes Watershed in Xinjiang Using Remote Sensing Images.

Abstract: Using the research results of eco-environmental evaluation for reference, this paper adopts three periods images which are respectively acquired in 1990, 2000, and 2010 as the main data sources. With the support of GIS technology, this paper quantitatively analyzes and evaluates the eco-environment situation and changes of the Tekes watershed by means of comprehensive index method and builds the thematic map of ecological environment factors. The results shows that the eco-environmental quality of the Tekes watershed has been in good condition, but in general, it tends to degrade slowly. With the comparison of the three periods assessment results, it is discovered that the eco-environment quality of 1990 is the best in Tekes watershed. There is a trend of decreasing by 4.0809 around 2000 year, but in 2010, it has improved slightly. [Copyright &y& Elsevier]