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URBAN EXPANSION DETECTION WITH SPOT5 PANCHROMATIC IMAGES USING TEXTURAL FEATURES AND PCA 会议论文
2012 Ieee International Geoscience and Remote Sensing Symposium (Igarss)
Lu, Linlin; Li, Qingting; Guo, Huadong; Pesaresi, Martino; Ehrlich, Daniele
收藏  |  浏览/下载：26/0  |  提交时间：2014/12/07
Urban spatial expansion of Xiangtan City, China 会议论文
2011 19th International Conference on Geoinformatics, Geoinformatics 2011,, Shanghai, China, June 24, 2011 - June 26,2011
Liu, Fang; Zhang, Zengxiang; Sun, Feifei; Zuo, Lijun; Wang, Xiao
收藏  |  浏览/下载：19/0  |  提交时间：2014/12/07
Land use dynamics and landscape change pattern in Hetao irrigation district, Inner Mongolia, China 会议论文
6th International Symposium on Digital Earth: Data Processing and Applications, Beijing, China, September 9, 2009 - September 12,2009
Zhang, Yinhui; Luo, Yi; Zhao, Wenwu
收藏  |  浏览/下载：16/0  |  提交时间：2014/12/07
This study analyzed spatial and temporal changes in land use in an irrigation district covering an area of 1.7 million ha in Northern China by GIS analyses and also investigated changes in landscape pattern using the landscape structure analysis program FRAGSTATS over the study period from 1986 to 2000. The decreases in farmland and the increases in grassland area mainly resulted from the policy of grain for green and converting slope farmland into pasture from China government. In spite of the efforts to conserve the fragile ecosystem  the land degradation  including soil salinization and grassland degradation  was spreading rapidly. The area of alkali-saline land increased by 22493 ha and about 50555 ha of dense grassland degraded into mid-density grassland. In terms of landscape fragmentation  both farmland and dense grassland showed the tendency of increased fragmentation. Both adverse natural conditions and human activities are responsible for the land degradation expansion in Hetao irrigation district  but the root causes are increasing population pressure and irrational human activities  such as flooding irrigation method and over-grazing. To prevent land degradation from spreading  population control and improvement of the management are prerequisite approaches. 2010 SPIE.  
Urban expansion monitoring and driving forces analysis: A case study of Jiangsu Province, China 会议论文
2009 Joint Urban Remote Sensing Event, Vols 1-3, New York
Xu Jinyong; Zhang Zengxiang; Wang Changyou; Zhao Xiaoli; Liu Bing; Yi Ling
收藏  |  浏览/下载：11/0  |  提交时间：2014/12/07
A comparative study of urban expansion on Hong Kong and Macao special administrative region in the past three decades 会议论文
2008 International Workshop on Earth Observation and Remote Sensing Applications, EORSA,, Beijing, China, June 30, 2008 - July 2,2008
Mu, Fengyun; Zhang, Zengxiang
收藏  |  浏览/下载：13/0  |  提交时间：2014/12/07
Dynamic monitoring of the built-up area expansion of Hong Kong based on Remote Sensing and the driving Mechanism analysis 会议论文
Geoinformatics 2006: GNSS and Integrated Geospatial Applications, Wuhan, China, October 28, 2006 - October 29,2006
Mu, Fengyun; Zhang, Zengxiang; Wang, Changyou; Liu, Bin Source
收藏  |  浏览/下载：14/0  |  提交时间：2014/12/07

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