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首页> 外文期刊>Chinese science bulletin >Corridor effect of the spatial changes of landscape patterns in arid areas: A case study of the river corridor areas in the middle and lower reaches of Tarim River
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Corridor effect of the spatial changes of landscape patterns in arid areas: A case study of the river corridor areas in the middle and lower reaches of Tarim River

机译：干旱区景观格局空间变化的走廊效应-以塔里木河中下游河流走廊地区为例

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摘要

The river corridor areas in the middle and lower reaches of the Tarim River are dominated by the traditional green corridors along the river section from the Qara Reservoir in Yuli County to the Taitema Lake in Ruoqiang County, which plays an important role in the social and economic development in the Tarim River Watershed with a extremely significant ecological functions. The buffer zones perpendicular to the watercourse were defined along both riversides at a 5-km interval beginning from the watercourse (10 km wider) using the method of the buffer zone analysis. The landscape pattern indexes of each buffer zone were calculated, and the indexes of the main landscape patterns were analyzed so as to reveal the radiative effect and the characteristics of the river corridors on landscape and patch levels. The results show that the radiative width is generally 30 km in the study area, and can be up to 50—70 km in sub- region FG1 because the study area is located in two drainage basins, with an ecological interstitial zone between them. The landscapes of woodlands and wetlands are generally distributed within the 10 km buffer zone (it means that the buffer zone is 5 km away from the watercourse; the same hereafter) along both riversides. Moreover, the closer the buffer zone is to the watercourse, the higher the patch density and the largest patch index are. In the ecological and environmental regeneration for the study area, the extent of ecological effect of the river corridors must be fully considered, and the projects must be scientifically and rationally planned and designed.
机译：塔里木河中下游的河道地区以尤里县卡拉水库到若qi县泰特玛湖沿河段的传统绿色走廊为主，在社会经济中起着重要作用。塔里木河流域的开发具有非常重要的生态功能。垂直于水道的缓冲区是使用缓冲区分析法从水道（宽10 km）开始，沿两条河沿以5 km的间隔定义的。计算了每个缓冲区的景观格局指数，并对主要景观格局的指数进行了分析，以揭示辐射效应以及河流走廊对景观和斑块水平的影响。结果表明，研究区域的辐射宽度通常为30 km，而在FG1子区域中辐射宽度可能高达50-70 km，因为研究区域位于两个流域之间，并且它们之间有一个生态间隙区。林地和湿地的景观通常分布在两条河沿的10公里缓冲区内（这意味着缓冲区距水道5公里;此后相同）。此外，缓冲区越靠近水道，斑块密度越高，斑块指数越大。在研究区域的生态和环境更新中，必须充分考虑河流走廊的生态影响程度，并且必须科学合理地规划和设计项目。

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