| 基于RS和GIS苏州市近20年来城镇扩展对土壤资源的影响研究 |
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| 引用本文： | 檀满枝,陈杰,张学雷.基于RS和GIS苏州市近20年来城镇扩展对土壤资源的影响研究[J].土壤,2004,36(6):621-625. |
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| 作者姓名： | 檀满枝 陈杰 张学雷 |
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| 作者单位： | 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008 |
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| 基金项目： | 中国科学院知识创新工程重要方向项目(KZCX3-SW-427)资助. |
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| 摘 要： | 随着城市化的加速发展,越来越多的土壤资源被侵占。本文借助RS和GIS技术,利用1984、1995、2000、2003年4期TM卫星遥感影像,采用多时相连续对比法对苏州市近20年来城镇扩展情况进行了分析;结合苏州市土壤图和全国第二次土壤普查数据,对苏州市近20年来城镇扩展占用土壤资源的情况进行了研究;并初步提出城镇扩展对粮食安全的影响。
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| 关 键 词： | 关键词城镇扩展 土壤资源 粮食安全 苏州市 |
RS-AND-GIS-BASED ASSESSMENT OF IMPACT OF URBANIZATION ON SOIL RESOURCES IN SUZHOU CITY IN THE LAST 20 YEARS |
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| TAN Man-zhi,CHEN Jie and ZHANG Xue-lei.RS-AND-GIS-BASED ASSESSMENT OF IMPACT OF URBANIZATION ON SOIL RESOURCES IN SUZHOU CITY IN THE LAST 20 YEARS[J].Soils,2004,36(6):621-625. |
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| Authors: | TAN Man-zhi CHEN Jie and ZHANG Xue-lei |
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| Institution: | State Key Laboratory of Soil and Sustainable Agriculture(StateInstitute of Soil Science, Chinese Academy of Sciences), Nanjing 210008,State Key Laboratory of Soil and Sustainable Agriculture(StateInstitute of Soil Science, Chinese Academy of Sciences), Nanjing 210008 and State Key Laboratory of Soil and Sustainable Agriculture(StateInstitute of Soil Science, Chinese Academy of Sciences), Nanjing 210008 |
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| Abstract: | More and more of the soil resources were occupied by the rapid urbanization in the Yangtse Delta. Based on the basic data of the TM images of four different periods, 1984, 1995, 2000 and 2003. This paper studies and analyzes the expansion of Suzhou City in the last 20 years using the method of multi-source information integration and multi-phase-successive-comparison with the aid of the technology of RS and GIS. Combined with the soil map of Suzhou and the data of the Second National Soil Survey, the results are used in exploring how much of the soil resources has been occupied by the expansion of the city. And impact of the expansion on safety of food supply is forecast. |
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| Keywords: | Expansion of urbanization Soil resources Food supply safety Suzhou City |
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