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Dataset of changes in spatial distribution of polders around Dongting Lake, China (1949–2013)

Long-term sediment deposition and embankment reclamation have formed a special distribution of polders around Dongting Lake in China. The area encompassed by the dataset includes 20 counties around Dongting Lake. The dataset content includes the polder distribution in 2013 and the spatial changes during 1949–1998, 1998–2008, and 2008–2013. The 2013 polder distribu-tion was extracted using object-oriented image classification using remotely sensed images. In-formation about spatial changes in the polders during the three historical periods was extracted from water-conservancy engineering drawings and related materials using automatic vectoriza-tion and the ArcGIS software. The dataset could be used to look for temporal and spatial patterns, explain the process of polder evolution, investigate land use and its changing patterns, and for-mulate corresponding policies for managing polders in the Dongting Lake area.

Data format
Subject
Geography
Data Level
Rough
Data time series
Short
temperal
Modern times
spatial
Place
resolution
Low
Country ID
CN
Data Size
28.3MB MB
Contributor Name
Wang Juanle, Gao Mengxu, Guo Haihui, Chen Eryang.
Contributor Email
ikcest-drr@lreis.ac.cn
Contributor Agency
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences
Creation time
2014.12.30
Resplnst Name
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences
RespInst Address
A11 Datun Road, Chaoyang District, Beijing
RespInst Postcode
100101
ResPerson Name
Service group of Disaster Risk Reduction Knowledge Service System of IKCEST
ResPerson Email
ikcest-drr@lreis.ac.cn
ResPerson Telephone
010-64889048-8006
Update Frequency
Irregular updates
Version
1
Data Citation
Dataset of changes in spatial distribution of polders around Dongting Lake, China (1949–2013). Disaster Risk Reduction Knowledge Service of International Knowledge Centre for Engineering Sciences and Technology (IKCEST) under the Auspices of UNESCO, 2014.12.30. http://drr.ikcest.org/info/8927.
Last Modified
Organization
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences.
Accessconstraints
Sharing Type: Open
Time Begin
1949
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