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A dataset of land cover in northwest China from 1990 to 2010
Dataset URL >>
: 2018 - 07 - 09
: 2018 - 09 - 30
: 2018 - 09 - 30
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Abstract & Keywords
Abstract: Land cover change is one of the most direct manifestations of global environmental change, which influences global environment. An analysis of regional land cover dynamics lays a basis for researches on global change, ecosystem assessment and the interaction between human and environment. In this study we take northwest China as research area, including Xinjiang Uygur Autonomous Region, Qinghai Province, Gansu Province, Ningxia Hui Autonomous Region, Shaanxi Province and Alashan League of Inner Mongolia Autonomous Region. We collect Landsat TM image data of the area in 1990, 2005 and 2010, and Landsat ETM+ image data in 2000. Through the eCognition platform, we extract land cover data of the four periods using object-oriented automatic classification and artificial visual interpretation. Finally, data accuracy is verified through three methods, including field sample point survey, high-resolution image recognition and Google Earth sample point identification. This dataset can be used as background data for regional eco-environment assessment, regional planning, climate change research, environmental modeling, biodiversity studies, and ecosystem carbon research.
Keywords: northwest China ; land cover; object-oriented classification method; eCongnition; Landsat
Dataset Profile
TitleA dataset of land cover in northwest China from 1990 to 2010
Data corresponding authorXie Jiali (xiejl@lzb.ac.cn)
Data authorsXie Jiali, Yan Changzhen, Chang Cun
Time rangeYear of 1990, 2000, 2005 and 2010
Geographical scope31°35′–49°52’N, 73°56’–111°47’E
Spatial resolution200 m
Data volume574 MB
Data formatSHP
Data service systemhttp://www.crensed.ac.cn/portal/metadata/215ea67d-cfa5-4636-8a12-dec526332224
Sources of fundingConstruction of Ground-Remote Sensing Data Platform in Northwest China (KFJ-EW-STS-006), National Science and Technology Infrastructure Platform project – “Shared Service Platform of Special Environment and Function Observation and Research Station” (Y719H71006), Chinese Academy of Sciences informatization special project – “Environmental Evolution Research in Cold and Arid Regions: ‘Technology Field Cloud’ Construction and Application” (XXH13506)
Dataset compositionThis dataset of land cover in northwest China from 1990 to 2010, contains 25 files, including land cover of Xinjiang Uygur Autonomous Region in 1990, 2000, 2005 and 2010, land cover of Qinghai Province in 1990, 2000, 2005 and 2010, land cover of Gansu Province in 1990, 2000, 2005 and 2010, land cover of Ningxia Hui Autonomous Region in 1990, 2000, 2005 and 2010, land cover of Shaanxi Province in 1990, 2000, 2005 and 2010, land cover of the Alashan League of Inner Mongolia Autonomous Region in 1990, 2000, 2005 and 2010 respectively, and a document of the classification system.
Article and author information
Xie Jiali
主要承担工作:数据预处理及土地覆被数据提取。
xiejl@lzb.ac.cn
Yan Changzhen
主要承担工作:数据处理流程的设计及数据集成。
Chang Cun
主要承担工作:数据预处理及土地覆被数据提取。
Publication records
Released: Sept. 30, 2018 ( VersionsZH3
References
中国科学数据
csdata