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当前位置: 首页 > 文章 > 长江三峡库区移民工程土地利用和景观格局变化遥感监测研究(英文) 农业工程学报 2003,19 (5) 218-224
Position: Home > Articles > Monitoring land use and landscape changes caused by migrant resettlement with remote sensing in Region of Three Gorges of Yangtze River Transactions of the Chinese Society of Agricultural Engineering 2003,19 (5) 218-224

长江三峡库区移民工程土地利用和景观格局变化遥感监测研究(英文)

作  者：
孙丹峰;李红;林培
单  位：
教育部土壤-植物相互作用过程实验室;北京农林科学院;中国农业大学土地资源管理系;教育部土壤-植物相互作用过程实验室 北京100094
关键词：
土地利用;景观格局分析;遥感技术;影像分析;长江三峡库区;移民安置
摘  要：
自 1997年中国三峡大坝成功截流以来 ,对库区土地利用和景观格局产生复杂影响。该文采用遥感技术和景观格局评价方法对奉节和巫山两个移民大县在 1998年到 2 0 0 0年的土地利用变化进行监测研究。在大江截流后一年半时间内 ,该区域 2 2 .9%土地利用发生了变化 ,表明移民安置工作速度显著加快。新开发用地变化最为明显 ,增加 480 0 .8hm2 ,扩展6 2 6 .6 %。而耕地面积则减少了 185 6 7.9hm2 ,下降约 2 7.6 %。这些土地利用变化导致区域景观发生了变化。斑块密度增大了 2 9.5 %,连通度下降了 13.9%,表明移民安置导致区域景观进一步破碎化。景观形状指数上升了 17.7%,斑块形状进一步复杂和不规则。研究结果表明土地利用变化并未按照移民安置规划有序进行 ,应进一步控制新开发用地扩展速度和范围 ,对不适合农业用地的新开发用地及时进行退耕还林草工作。
译  名：
Monitoring land use and landscape changes caused by migrant resettlement with remote sensing in Region of Three Gorges of Yangtze River
作  者：
Sun Danfeng 1, Li Hong 2, Lin Pei 1 (1. Department of Land Resources Management, China Agricultural University, Laboratory for Plant-Soil Interaction Processes, Ministry of Education, Beijing 100094, China; 2. Beijing Academy of Agriculture and Forestry Sciences, Beijing 100089, China)
关键词：
land use; landscape pattern analysis; remote sensing; image analysis; Three Gorges of Yangtze River; migrant resettlement
摘  要：
China Three Gorges Water Conservancy Project has imposed a profound impact on the change of land use and landscape patterns after the successful dam in 1997. This paper uses remote sensing techniques to detect land use dynamics and adopts a landscape approach to quantify changes in landscape patterns for two counties which have larger amount of migrants. The results show that 22.9% total region had been changed in one and half a year. Development changed most obviously during this phase; it increased by 4800.8 hm 2, about 626.6%. Arable land in this phase decreased by 18567.9 hm 2, about 27.6%. All these land use changes affected landscape patterns. Patch density increased relatively about 29.5% and contiguity index decreased by 13.9% at landscape level, reflecting landscape more fragmented. The landscape shapes index increased by 17.7% at landscape level, showing the shapes of landscape are more irregular. Particularly, the most remarkable landscape pattern changes occurred on development, orchard, grassland and arable land. The land use change, is not in the good order management, but quite different from the migrant resettlement plan. It is very important to control the scope and the expanding speed of development, afforest and regrass the area where is not suitable for agriculture development in the future.

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