Monitoring of land use/land cover change of Ruoergai Nature Reserve in Sichuan province, China

Zezhong Zheng; Shijie Yu; Yong He; Wenqiang Guo; Wunian Yang; Hongsheng Zhang; Jiang Li

doi:10.1117/12.2207619

9 December 2015 Monitoring of land use/land cover change of Ruoergai Nature Reserve in Sichuan province, China

Zezhong Zheng, Shijie Yu, Yong He, Wenqiang Guo, Wunian Yang, Hongsheng Zhang, Jiang Li

Proceedings Volume 9808, International Conference on Intelligent Earth Observing and Applications 2015; 98080Y (2015) https://doi.org/10.1117/12.2207619
Event: International Conference on Intelligent Earth Observing and Applications, 2015, Guilin, China

Abstract

Ruoergai Conservation area belongs to the Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province. In recent decades, the wetland and grassland have degraded very seriously. In this paper, based on GIS spatial analysis techniques, we utilized the Landsat 7 ETM + images in 2007, 2009, and 2011, to extract the land use/land cover change in Ruoergai. Firstly, the images were enhanced, mosaicked, and subset. Secondly, the supervised and unsupervised classification method were used to derive the land use/land cover change information in Ruoergai. Finally, the land use / land cover change in Ruoergai was analyzed between 2007 and 2011 . Our results were listed below: (1)The area of water body and swamp in Ruoergai reduced by 52.346% between 2007 and 2011. (2)The area of grass land in Ruoergai decreased by 12.754% between 2007 and 2011. (3) The area of woodland in Ruoergai reduced by 3.224% between 2007 and 2011. (4) The area of bare land, cultivated land and construction land increased by 6.647% between 2007 and 2011.

Citation Download Citation

Zezhong Zheng, Shijie Yu, Yong He, Wenqiang Guo, Wunian Yang, Hongsheng Zhang, and Jiang Li "Monitoring of land use/land cover change of Ruoergai Nature Reserve in Sichuan province, China", Proc. SPIE 9808, International Conference on Intelligent Earth Observing and Applications 2015, 98080Y (9 December 2015); https://doi.org/10.1117/12.2207619

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