Monitoring grass dynamics by RS and GIS in China arid region

Yarong Zou; Zengxiang Zhang; Xiaoli Zhao; Wenbin Tan

doi:10.1117/12.480752

14 July 2003 Monitoring grass dynamics by RS and GIS in China arid region

Yarong Zou, Zengxiang Zhang, Xiaoli Zhao, Wenbin Tan

Proceedings Volume 4890, Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land; (2003) https://doi.org/10.1117/12.480752
Event: Third International Asia-Pacific Environmental Remote Sensing Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2002, Hangzhou, China

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.

Citation Download Citation

Yarong Zou, Zengxiang Zhang, Xiaoli Zhao, and Wenbin Tan "Monitoring grass dynamics by RS and GIS in China arid region", Proc. SPIE 4890, Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land, (14 July 2003); https://doi.org/10.1117/12.480752

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KEYWORDS

Remote sensing

Geographic information systems

Data conversion

Image processing

Soil science

Vegetation

Earth observing sensors

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