基于能值分析的汉藏回民族地区环境承载力评价 - 兰州大学.PDFVIP

兰州大学学报: 自然科学版, 2017, 53(2) / 4 月 Journal of Lanzhou University ：Natural Sciences，2017 ，53(2) / April 基于能值分析的汉藏回民族地区环境承载力评价 胡晓芬, 陈兴鹏, 韩 杰, 张子龙 兰州大学 资源环境学院, 兰州 730000 摘 要：基于能值分析方法, 以地处青藏高原的甘南藏族自治州、青藏高原与黄土高原交汇区的临 夏回族自治州和黄土高原的定西市为研究对象, 从环境的“资源支撑能力”和“废物消纳能力”两方面 构建区域环境承载力评价的分析方法, 用能值分析和环境承载力分析方法从不同角度分别计算 1980-2008 年定西市、甘南藏族自治州、临夏回族自治州的环境承载状况, 并进行对比分析. 研究表 明: 时间尺度上, 两种计算结果出现较好的拟合, 表明定西市的经济系统发展尚在环境承载范围之 内, 且环境承载状况保持动态稳定; 甘南藏族自治州的环境承载力供给大于需求, 处于冗余状态, 但 下降趋势明显; 临夏回族自治州自2002 年后经济发展超出了环境承载范围, 资源约束趋紧, 且这种 超载趋势在不断加剧. 最后针对区域差异分析3 个地区可持续发展中存在的问题, 并提出相应的优 化方向及措施. 关键词：环境承载力; 能值分析; 民族地区 中图分类号：F062.2; X22 文献标识码：A 文章编号: 0455-2059(2017)02-0206-07 DOI: 10.13885/j.issn.0455-2059.2017.02.009 Evaluation of environmental carrying capacity of the Han, Tibetan and Hui ethnic areas based on emery analysis Hu Xiao-fen, Chen Xing-peng, Han Jie, Zhang Zi-long College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China Abstract: Based on the emergy analysis method, Gannan Tibetan autonomous prefecture in the Qinghai- Tibet Plateau, Linxia Hui autonomous prefecture in the Dingxi City of Loess Plateau and Qinghai-Tibet Plateau and Dingxi City in Loess Plateou were taken as the research objects. The evaluation method for carrying capacity from the resource supporting capacity and waste assimilating capacity was construct- ed and then used to measure the regional environmental carrying capacity in 1980- 2008 of Dingxi city, Gannan Tibetan autonomous prefecture, Linxia Hui autonomous prefecture and a comparison analysis was made. The results showed that, on the time scales, two kinds of calculated results fitted well, indicat- ing that Dingxis economic development was within the environmental load range, and th