[1]PENG Dong-mei,ZHAO Cheng-yi,SUN Dong-yuan,et al.Study on the Characteristics of Land Use Changes and Landscape Pattern in Tailan River Watershed[J].Research of Soil and Water Conservation,2009,16(04):275-279.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
16
Number of periods:
2009 04
Page number:
275-279
Column:
Public date:
2009-08-20
- Title:
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Study on the Characteristics of Land Use Changes and Landscape Pattern in Tailan River Watershed
- Author(s):
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PENG Dong-mei1, ZHAO Cheng-yi2, SUN Dong-yuan2, YAN Ying-yu1, LI Ju-yan2, WEI Heng2, LI Zi-liang3
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1. College of Grassland and Environment, Xinjiang Agricultural University, Urumqi 830052, China;
2. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
3. Committee of Urumqi Construction, Urumqi, 830029, China
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- Keywords:
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land use change; landscape pattern; ecological consequence; Tailan River watershed
- CLC:
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F301.24
- DOI:
-
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- Abstract:
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The three-stage spatial data of land use change was established based on ArcGIS by using TM remote images and DEM as data sources. GIS spatial analysis tool was applied to trace the land use change and to characterize the landscape pattern in the Tailan River watershed since 1990.The results indicated that cropland and sandy land increased by 35 027.11 hm2 and 10 443.46 hm2 respectively, while grassland area decreased by 59 965.95 hm2 from 1990 to 2005.This suggests that large-scale reclamation occurred in this area. The remarkable increase of cropland resulted in the damage of natural vegetation, reduction of biodiversity and conflict between agricultural and ecological water demands. The area suffering from salinization in the old oasis trend to decrease, while the area of salinization in parts of the new oasis periphery presented an aggravating tendency.