| 近10年洞庭湖区土地利用变化时空特征 |
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| 引用本文： | 李仁东,刘纪远,庄大方,Wang Hongzhi.近10年洞庭湖区土地利用变化时空特征[J].地理学报(英文版),2003,13(3):259-264. |
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| 作者姓名： | 李仁东 刘纪远 庄大方 Wang Hongzhi |
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| 作者单位： | [1]Inst.ofGeodesyandGeolahysics,CAS,Wuhan430077,China [2]Inst.ofGeographicSciencesandNaturalResourcesResearch,CAS,Beijing100101,China [3]FacultyofLifeScience,HubeiUniversity,Wuhan430062,China |
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| 基金项目： | Knowledge Innovation Project of CAS，No.KZCX2-310-01，No.KZCX2-SW-415，No.KZCX1-Y-02 |
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| 摘 要： | The research on the land use/cover change is one of the frontiers and the hot spots in the global change research. Based on the Chinese resource and environment spatial-temporal database,and using the Landsat TM and ETM data of 1990 and 2000 respectively, we analyzed the spatial-temporal characteristics of land use/cover changes in the Dongting Lake area during the last decade. The result shows that during the last ten years there were three land-use types that had changed remarkably. The cultivated land decreased by 0.57% of the total cultivated land. The built-up land and water area expanded, with an increase of 8.97% and 0.43% respectively. The conversion between land use types mostly happened among these three land-use types, especially frequently between cultivated land and water area. The land-use change speed of land-use type is different. Three cities experienced the greatest degree of land-use change among all the administrative districts, which means that the land use in these cities changed much quickly. The following changed area was the west and south of the Dongting Lake area. The slowest changed area is the north and east area.
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| 关 键 词： | 空间－时间关系 遥感技术 洞庭湖 土地利用 |
| 收稿时间： | 22 February 2003 |
| 修稿时间： | 22 May 2003 |
The spatial-temporal changes of the land use/cover in the Dongting Lake Area during the last decade |
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| Li Rendong,Liu Jiyuan,Zhuang Dafang,Wang Hongzhi.The spatial-temporal changes of the land use/cover in the Dongting Lake Area during the last decade[J].Journal of Geographical Sciences,2003,13(3):259-264. |
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| Authors: | Li Rendong Liu Jiyuan Zhuang Dafang Wang Hongzhi |
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| Institution: | 1. Inst. of Geodesy and Geophysics, CAS, Wuhan 430077, China|;
2. Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China|;
3. Faculty of Life Science, Hubei University, Wuhan 430062, China |
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| Abstract: | The research on the land use/cover change is one of the frontiers and the hot spots in the global change research. Based on the Chinese resource and environment spatial-temporal database, and using the Landsat TM and ETM data of 1990 and 2000 respectively, we analyzed the spatial-temporal characteristics of land use/cover changes in the Dongting Lake area during the last decade. The result shows that during the last ten years there were three land-use types that had changed remarkably. The cultivated land decreased by 0.57% of the total cultivated land. The built-up land and water area expanded, with an increase of 8.97% and 0.43% respectively. The conversion between land use types mostly happened among these three land-use types, especially frequently between cultivated land and water area. The land-use change speed of land-use type is different. Three cities experienced the greatest degree of land-use change among all the administrative districts, which means that the land use in these cities changed much quickly. The following changed area was the west and south of the Dongting Lake area. The slowest changed area is the north and east area. |
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| Keywords: | land use/cover change remote sensing Dongting Lake area |
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