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长江流域不同尺度岸带区域的土地利用及其变化 被引量:7

Land use and change of riparian zone at different scales in the Yangtze River Basin
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摘要 利用2010年和2000年数据,分析长江流域干流和支流的岸带区域土地利用类型及其10年间的变化,并对比分析干、支流不同宽度缓冲距离内的土地利用结构特征及其时空变化,探讨不同地理尺度下的人类开发活动对长江岸带土地利用格局的影响。结果表明:长江岸带区域是流域内人类开发建设和农业活动的重要区域,岸带区域的耕地和人工表面面积占比分别为31.9%和6.8%,明显大于流域平均(24.9%和3.1%);其中,长江中游岸带区域的人类开发建设和农业活动强度相对较高,干、支流岸带区域的林地占比仅为长江流域平均的14.1%和66.0%。从2000年与2010年土地利用变化看,长江干、支流岸带区域的人工表面占比增幅最大,其中,中游干、支流的岸带区域人工表面增幅分别为流域平均的5.3和2.1倍。 Based on land use data of 2010 and 2000,the land use status and change of the main streams and tributaries of the Yangtze River riparian zone were analysed,and the comparative analysis was carried out on the land use structure and spatial changes of the main streams and tributaries with buffer area of different widths. On this basis,the effects of human development activities at different geographical scales on the land use pattern in the shore of the Yangtze River were discussed. The results showed that the riparian zone is the very important area of construction and agricultural activities in Yangtze River Basin. The proportion of cultivated land and artificial surface area in riparian zone was 31. 9% and 6. 8%,respectively,which was significantly higher than that of basin average values( 24. 9% and 3. 1%). In the riparian zone of the middle of Yangtze River where the human development and construction and the intensity of agricultural activities were relatively high,the proportion of forest land in the main streams and tributaries were only 14. 1% and 66. 0% of the average level of the Yangtze River Basin,respectively. According to the analysis of land use change in 2000 and 2010,the artificial surface of the main streams and tributaries of the Yangtze River riparian zone accounted for the largest increase,and the increase of the artificial surface of the main streams and tributaries in the middle stream of the Yangtze River was 5. 3 and 2. 1 times of the average level of the basin.
作者 张哲 倪贺伟 王维 杨冉冉 张志苗 杨柯宁 ZHANG Zhe NI Hewei WANG Wei YANG Ranran ZHANG Zhimiao YANG Kening(Institute of Environmental Information, Chinese Research Academy of Environmental Sciences, Beijing 100012, China West East Gas Pipeline Company of PetroChina Co Ltd, Shanghai 200122, China)
出处 《环境工程技术学报》 CAS 2017年第4期500-508,共9页 Journal of Environmental Engineering Technology
基金 全国生态环境十年变化(2000-2010)遥感调查与评估专项(STSN-13-01) 环境保护部自然生态保护司流域生态健康评估工作专项(2015)
关键词 长江流域 岸带 尺度 土地利用 格局特征 Yangtze River Basin riparian zone scale land use pattern characteristics
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