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首页> 外文会议>2011 International Conference on Remote Sensing, Environment and Transportation Engineering >Research on land-use structure in the water-level-fluctuating zone of Three Gorges Reservoir area based on information entropy — A case study of Kaixian County in Chongqing City, China
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Research on land-use structure in the water-level-fluctuating zone of Three Gorges Reservoir area based on information entropy — A case study of Kaixian County in Chongqing City, China

机译：基于信息熵的三峡库区水位波动区土地利用结构研究-以重庆市开县为例

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摘要

According to the operation of Three Gorges Project, a water-level-fluctuating zone with 30m high will come into being in Three Gorges Reservoir Area, which will bring a succession of ecological and environmental problems. Therefore the research on the land-use structure of water-level-fluctuating zone is very important for environmental protection in Three Gorges Reservoir Area. Using the land use data and remote sensing image from 2003 to 2009 in Kaixian County which holds the biggest area of water-level-fluctuating zone, this paper adopts the information entropy model to analyze the dynamic changes of land-use system''s order degree during the process of forming the Reservoir, and simulates five kinds of land use pattern. The results showed as following: 1) with the upgrade of reservoir water level, the entropy of land use system is increasing. It demonstrates that the land use structure is in higher order relatively in 2003, and land use disorder increased highly in 2009. 2) The wetland protection pattern is the optimal pattern in four simulation patterns. At the same time, it confirmed the importance of wetland protection in urban edge. Although the current “dam” pattern is sub-optimal, its ecological and economic benefits are relatively reasonable. Therefore current “dam” pattern is acceptable.
机译：根据三峡工程的运行情况，三峡库区将形成一个高30m的水位波动区，这将带来一系列的生态和环境问题。因此，对三峡库区水位波动区土地利用结构的研究对环境保护具有重要意义。本文利用水位变动区面积最大的开县2003-2009年的土地利用数据和遥感图像，采用信息熵模型对土地利用系统秩序的动态变化进行了分析。形成水库过程中的水位，并模拟了五种土地利用方式。结果表明：1）随着水库水位的提高，土地利用系统的熵值不断增加。结果表明，2003年土地利用结构相对较高，2009年土地利用无序增加较大。2）湿地保护格局是四种模拟格局中的最优格局。同时，它确认了湿地保护在城市边缘的重要性。尽管当前的“水坝”模式不是最理想的，但其生态和经济效益却相对合理。因此，当前的“水坝”模式是可以接受的。

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