基于能值分析的汉藏回民族地区环境承载力评价

发布时间：2018-04-17 16:59

本文选题：环境承载力 + 能值分析　；参考：《兰州大学学报(自然科学版)》2017年02期

【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.
[Abstract]:Based on the method of emergy analysis, the Gannan Tibetan Autonomous Prefecture located on the Qinghai-Tibet Plateau, the Linxia Hui Autonomous Prefecture at the intersection of the Qinghai-Tibet Plateau and the Loess Plateau, and the Dingxi City of the Loess Plateau are taken as the research objects.The analysis method of regional environmental carrying capacity is constructed from the two aspects of "resource supporting capacity" and "waste absorption capacity" of the environment. The methods of energy value analysis and environmental carrying capacity analysis are used to calculate Dingxi City from 1980 to 2008, respectively.Gannan Tibetan Autonomous Prefecture, Linxia Hui Autonomous Prefecture environmental load, and comparative analysis.The results show that the economic system of Dingxi City is still within the range of environmental bearing, and the state of environmental bearing remains dynamic and stable.The supply of environmental bearing capacity in Gannan Tibetan Autonomous Prefecture is larger than the demand and is in a redundant state, but the decreasing trend is obvious. Since 2002, the economic development of Linxia Hui Autonomous Prefecture has exceeded the range of environmental carrying capacity, and the resource constraints have become tighter.And this trend of overload is increasing.Finally, the problems in the sustainable development of the three regions are analyzed according to the regional differences, and the corresponding optimization directions and measures are put forward.
【作者单位】：兰州大学资源环境学院;
【基金】：国家自然科学基金项目(41471462,41271133) 中央高校基本科研业务费专项资金项目(13LZUJBWZB003,lzujbky-2015-216,16LZUJBWZY057)
【分类号】：F062.2;X821

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