School of Earth Science and Resources, Chang’an University, Xi’an, China
Yulin is one of the important energy and chemical bases, located in ecologically fragile region in China. Landscape ecological disturbance of which affects regional ecological protection and high quality development. Remote sensing images covering Yulin in 2000, 2005, 2010, 2015 and 2018 were interpreted to process landscape thematic with the software ERDAS and ArcGIS10.2Landscape ecological disturbance model was established. Yulin is one of the important energy chemical industry area in China, located at the intersection of Loess Plateau and Mu Us Desert, and the vulnerability of ecosystem in this area is extremely prominent. This paper aimed to reveal the spatial-temporal characteristics of landscape ecological quality. The results showed that:(1)from the perspective of time change, landscape ecological disturbance fluctuates greatly, the degree of landscape disturbance decreased significantly and increased from 2010 to 2015 and reacheig its peak,(2)from the perspective of spatial change, the severe disturbance area is mainly concentrated in the areas with large population density and developed economy.
Landscape ecological stability, disturbance, Landscape ecological quality, Yulin
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