Impact of environmental factor variation on desertification: an example from the Shule River area

Yushu Zhang; Xiangyun Li; Lixin Wang; Hongqi Zhang

doi:10.1117/12.466195

14 July 2003 Impact of environmental factor variation on desertification: an example from the Shule River Area

Yushu Zhang, Xiangyun Li, Lixin Wang, Hongqi Zhang

Proceedings Volume 4890, Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land; (2003) https://doi.org/10.1117/12.466195
Event: Third International Asia-Pacific Environmental Remote Sensing Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2002, Hangzhou, China

Abstract

Variation of environmental factors plays an important roll in the process of desertification. In this paper, taking Shule River as an example, the variation and correlation coefficient was calculated to evaluate the main environmental factors’ changes and its relation to the state of desertification. The results obtained indicate that the variations of factors including meteorological factors and human active factors are obvious. Since 80’s the annual precipitation and annual number of sandstorm days have been declining in a fluctuating state. The population and the area of cultivated land have been increasing. The correlation analysis shows that there exist positive correlations between desertification and population and area of cultivated land. The correlation between area of desertification and annual wind speed, annual number of sandstorm days is significant. In Shule River area, desertification state has more obvious relation with human active factor, comparing with meteorological factors.

Citation Download Citation

Yushu Zhang, Xiangyun Li, Lixin Wang, and Hongqi Zhang "Impact of environmental factor variation on desertification: an example from the Shule River Area", Proc. SPIE 4890, Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land, (14 July 2003); https://doi.org/10.1117/12.466195

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