[1]GAO Guo-lin,WANG Shi-ying,JIANG Rong.Remote Sensing Analysis on Vegetation Cover and Landscape Patterns Change in Cuiping[J].Research of Soil and Water Conservation,2013,20(03):104-109.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 03
Page number:
104-109
Column:
Public date:
2013-06-28
- Title:
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Remote Sensing Analysis on Vegetation Cover and Landscape Patterns Change in Cuiping
- Author(s):
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GAO Guo-lin1,2, WANG Shi-ying1,2, JIANG Rong1,2
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1. Key Lab of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu 610068, China;
2. College of Geography and Resources Science, Sichuan Normal University, Chengdu 610101, China
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- Keywords:
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vegetation cover; landscape pattern; changing trend; Cuiping district of Sichuan province; remote sensing
- CLC:
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TP79
- DOI:
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- Abstract:
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Vegetation cover change had a very important effect on regional ecological environment quality. Analyzing the trend change of vegetation cover can provide monitoring methods for vegetation cover dynamic change in Cuiping district. The changing trends of maximum value composited of NDVI and dimidiate pixel model were used to analyze the vegetation cover change in Cuiping district from 2001 to 2009 by using landsat and related auxiliary data. The results indicated that the improvement and degradation of the whole vegetation cover area in Cuiping district coexisted simultaneously for the past 9 years, but the improved vegetation area was larger than the degradation area. The area with high vegetation coverage markedly increased as well as the whole trend of vegetation cover area increased. Moreover, seven landscape indices were selected to analyze the landscape pattern change of different vegetation coverage in 2001 and 2009. The results indicated that the patch density of high vegetation coverage in 2009 was lower than that in 2001, but the whole area fragmentation was higher than 2001. The patche perimeter area fractal dimension and Shannon’s diversity index in 2009 were smaller than in 2001, but both of the largest patch area and aggregation index in 2009 were larger, which meant that its ecological nature conservation function was significantly stronger than 2001. Thus, in order to maintain favorable trend of high vegetation cover, it should be kept on enhancing and perfecting the regional protective measures of vegetation cover.