NDLI: Analysis of China grassland resource dynamic under different aridity based on GIS and RS

Content Provider	IEEE Xplore Digital Library
Author	Zou Yarong Zhang Zengxiang Zhao Xiaoli Zhou Quanbin Liu Bin
Copyright Year	2002
Description	Author affiliation: Inst. of Remote Sensing of Applications, Chinese Acad. of Sci., Beijing, China (Zou Yarong; Zhang Zengxiang; Zhao Xiaoli; Zhou Quanbin; Liu Bin)
Abstract	This paper studies on dynamics of Chinese grassland resources during 1995 and 2000 under different aridity supported by GIS and RS based on TM images. We get the grassland dynamic coverage under MGE environment by contrasting 1995 and 2000 TM images. The results show there is an obvious zonal distribution under different aridity; grassland is changed to farmland in high cover grassland, especially at 4,5,6 degree which mainly distributes in west and north of China; grassland was replaced by urban areas at each aridity and grassland degradation. The change area between grassland changed into farmland and grassland is about same, but shifting into farmland shows the grassland decrease; a lot of grassland is changed into forest. With the aridity degree increasing, the degradation becomes serious, especially at 4,5 degree. But at I degree, the main change is that grassland changed to forest. The urban takes place of grassland in each aridity. But the mainly change is becoming farmland and grassland and grass resource having different degree degeneration. The main reason of grassland changing into farmland is population pressure; grassland degradation is caused by over graze etc.
Sponsorship	IEEE IEEE Geosci. & Remote Sensing Soc. Canadian Remote Sensing Soc. Univ. Waterloo Natural Resources Canada (NRCan) Canadian Space Agency (CSA) Environ. Canada NASA Nat. Oceanic & Atmos. Adm. (NOAA) Office of Naval Res.(ONR) Nat. Space Dev. Agency of Japan (NASDA) Nat. Polar-orbiting Environ. Satellite Syst. (NPOESS)
Starting Page	2796
Ending Page	2798
File Size	356092
Page Count	3
File Format	PDF
ISBN	078037536X
DOI	10.1109/IGARSS.2002.1026778
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geographic Information Systems Soil Degradation Irrigation Remote sensing Geometry Interpolation Water resources Image analysis Content addressable storage
Content Type	Text
Resource Type	Article

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