基于3S技术的开孔河流域人居环境适宜性评价

发布时间：2018-04-24 00:02

  本文选题：土地利用 + 遥感　； 参考：《农业工程学报》2017年09期

【摘要】：该文以开孔河流域为研究区,选择地形地貌、气候、水文、植被、土地利用/土地覆盖等自然生态环境因子,运用3S技术,在1 km×1 km的栅格尺度上,进行投影转换、遥感解译、信息提取与分析,定量定性地反映了开孔河流域人居环境适宜性的空间规模与分布特征。结果表明:1)开孔河流域的人居环境指数介于4.4~83.9之间,人居环境适宜性从研究区中部平原区向西北天山高山区和东南塔克拉玛干沙漠区逐渐递减,研究区内大部分地区的人类生产活动受到自然条件的约束与限制。2)根据适宜性指数的大小整个开孔河流域可分为高适宜区、适宜区、一般适宜区、不适宜区以及最不适宜区5个区域,其面积分别为124、2456、2 526、23 104、46 301 km~2,分别占全研究区面积的0.2%、3.3%、3.4%、31%、62.1%。3)高适宜区、适宜区与一般适宜区的面积总和占整个研究区总面积的6.9%,而研究区总人口的98.8%居住在这6.9%区域内。不适宜区与最不适宜区面积总和占研究区总面积的93.1%,总人口的1.2%分布在这93.1%的区域内。研究结果表明,开孔河流域自然环境极其恶劣,生态环境质量相当脆弱,大部分地区受到自然环境条件的制约。所以在今后的发展规划当中需要结合当地自然环境情况与自然资源承载力,合理的进行城市规划与新农村建设。
[Abstract]:In this paper, taking the Kaikang River Basin as the study area, the authors select the natural ecological and environmental factors, such as topography, climate, hydrology, vegetation, land use / land cover and so on, and use 3s technology to carry out projection conversion and remote sensing interpretation on the grid scale of 1 km 脳 1 km. The information extraction and analysis reflect quantitatively and qualitatively the spatial scale and distribution characteristics of the suitability of human settlements in the Kaikang River Basin. The results showed that the habitat environmental index of the Kaikang River Basin was between 4.4 and 83.9, and the habitat suitability decreased gradually from the plain region in the central part of the study area to the alpine region in the northwest Tianshan Mountains and the Taklimakan desert region in the southeast. The human production activities in most areas of the study area are restricted and restricted by natural conditions. (2) according to the size of suitability index, the whole Kaikang River basin can be divided into high suitable area, suitable area, general suitable area, The area of the unsuitable area and the least suitable area is 124- 2456 / 2 / 2526/ 23 / 104/ 46.301km2 respectively, accounting for 0.2 / 3 / 3 / 3 / 3 / 3 of the total area of the study area respectively. The total area of the suitable area and the general suitable area accounts for 6.9% of the total area of the study area, while 98.8% of the total population of the study area lives in the area of 6.9%. The total area of the unsuitable area and the least suitable area is 93. 1% of the total area of the study area, and 1.2% of the total population is distributed in the region of 93. 1%. The results show that the natural environment of Kaikang River basin is extremely bad and the ecological environment quality is very fragile, and most areas are restricted by the natural environment conditions. Therefore, in the future development planning, it is necessary to combine the local natural environment and natural resources carrying capacity, reasonable urban planning and new rural construction.
【作者单位】： 新疆大学资源与环境科学学院新疆大学绿洲生态重点实验室;中国科学院遥感与数字地球研究所喀什研究中心;
【基金】：自治区研究生教育创新计划科研创新项目(XJGRI2014021) 中国国家自然科学基金(31360200,31270742) 德国大众EcoCAR基金项目(Az.:88497)联合资助
【分类号】：X821
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本文编号：1794220