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Proceedings Paper

Monitoring grass dynamics by RS and GIS in China arid region
Author(s): Yarong Zou; Zengxiang Zhang; Xiaoli Zhao; Wenbin Tan
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Paper Abstract

This paper analyses grassland dynamics in china from 1995 to 2000 under different aridity based on RS and GIS to discover the rule in it. The results show that the amount of grassland is reduced to 5.49 x104hm2. There is heavy grassland degradation in arid region, especially at low cover grass. The mainly change is becoming farmland and grassland and grass resource having different degree degeneration. The driving force of grassland dynamic is mainly natural and human activities. The main reason of grassland changing into farmland is population pressure; grassland degradation is caused by over graze etc. Because grassland lies in west and north of china, its area reduction and grass cover decrease will lead to china north environment worsen. Moreover the grassland decrease will restrict region economy development.

Paper Details

Date Published: 14 July 2003
PDF: 5 pages
Proc. SPIE 4890, Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land, (14 July 2003); doi: 10.1117/12.480752
Show Author Affiliations
Yarong Zou, Institute of Remote Sensing Applications, CAS (China)
Zengxiang Zhang, Institute of Remote Sensing Applications, CAS (China)
Xiaoli Zhao, Institute of Remote Sensing Applications, CAS (China)
Wenbin Tan, Institute of Remote Sensing Applications, CAS (China)


Published in SPIE Proceedings Vol. 4890:
Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land
Xiaoling Pan; Wei Gao; Michael H. Glantz; Yoshiaki Honda, Editor(s)

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