| A GIS-based Tupu Analysis of Dynamics of Saline-alkali Land in Western Jilin Province |
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| 作者姓名： | REN Chunying ZHANG Bai WANG Zongming SONG Kaishan LIU Dianwei LIU Zhiming |
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| 作者单位： | 1. Northeast Institute of Geography and Agroecology，Chinese Academy of Sciences，Changchun 130012，China; 2. College of Urban and Environmental Sciences，Northeast Normal University，Changchun 130024，China; 3. Graduate University of Chinese Academy of Sciences，Beijing 100049，China |
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| 基金项目： | 国家自然科学基金;中国科学院知识创新工程项目 |
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| 摘 要： | Based on Tupu theory, this paper studied the dynamic changes, conversion modes, expansion intensity and landscape attributes of the saline-alkali lands in Changling County, Zhenlai County and Da'an City of the western Jilin Province in 1980-2000 with the help of GIS. The results show that the saline-alkali land rather sharply increased in Da'an during 1995-2000; the main conversion processes in the three counties were from grassland to saline-alkali land and from saline-alkali land to grassland; and the typical shapes, spatial expansion speed and mode, and landscape attributes of the saline-alkali land were different in the three counties, which were closely related to local topography, predominant wind orientation, water resources distribution, etc. The corresponding spatial expansion mode was marginality in Changling, random in Zhenlai and more kernels in Da'an, respectively. Landscape attributes also responded to the spatial-temporal dynamic changes of the saline-alkali land and the landscape indices of Da'an fluctuated greatly. The frame of this research may provide fundamental reference for landscape analysis and give some suggestions for regional sustainable development.
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| 关 键 词： | 吉林 地理信息系统 盐碱地 土地资源 |
| 收稿时间： | 2006-12-10 |
| 修稿时间： | 2007-05-18 |
A GIS-based Tupu analysis of dynamics of saline-alkali land in western Jilin Province |
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| REN Chunying ZHANG Bai WANG Zongming SONG Kaishan LIU Dianwei LIU Zhiming.A GIS-based Tupu Analysis of Dynamics of Saline-alkali Land in Western Jilin Province[J].Chinese Geographical Science,2007,17(4):333-340. |
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| Authors: | Ren Chunying Zhang Bai Wang Zongming Song Kaishan Liu Dianwei Liu Zhiming |
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| Institution: | (1) Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130012, China;(2) College of Urban and Environmental Sciences, Northeast Normal University, Changchun, 130024, China;(3) Graduate University of Chinese Academy of Sciences, Beijing, 100049, China |
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| Abstract: | Based on Tupu theory, this paper studied the dynamic changes, conversion modes, expansion intensity and landscape attributes
of the saline-alkali lands in Changling County, Zhenlai County and Da’an City of the western Jilin Province in 1980–2000 with
the help of GIS. The results show that the saline-alkali land rather sharply increased in Da’an during 1995–2000; the main
conversion processes in the three counties were from grassland to saline-alkali land and from saline-alkali land to grassland;
and the typical shapes, spatial expansion speed and mode, and landscape attributes of the saline-alkali land were different
in the three counties, which were closely related to local topography, predominant wind orientation, water resources distribution,
etc. The corresponding spatial expansion mode was marginality in Changling, random in Zhenlai and more kernels in Da’an, respectively.
Landscape attributes also responded to the spatial-temporal dynamic changes of the saline-alkali land and the landscape indices
of Da’an fluctuated greatly. The frame of this research may provide fundamental reference for landscape analysis and give
some suggestions for regional sustainable development.
Foundation item: Under the auspices of National Natural Science Foundation of China (No. 40401003), Knowledge Innovation Program
of Chinese Academy of Sciences (No. KZCX3-SW-356), and fund for Scholarship of Dean of Chinese Academy of Sciences |
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| Keywords: | Tupu saline-alkali land GIS Jilin Province |
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