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| 湟水流域土地资源环境承载力分析 |
| Analysis on Environmental Carrying Capacity of Land Resources in Huangshui Basin |
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| DOI： |
| 中文关键词: 土地资源环境承载力 生态敏感性 生态脆弱区 湟水流域 |
| 英文关键词: Environmental carrying capacity of land resources Ecological sensitivity Ecological vulnerable area Huangshui Basin |
| 基金项目:青海省自然科学基金资助项目（2016-ZJ-907） |
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| 中文摘要: |
| 以湟水流域为研究区，从生态敏感性、土地利用生态适宜性角度分析流域土地资源利用合理性，以生态用地为约束评价土地资源环境承载能力。结果表明：流域内中度敏感区占比最高，为4170%，主要处于以高、中覆盖度草地、林地、水域及未利用土地为主的浅山区和脑山区的相交区域；高度敏感区占比1513%，集中分布于以林地为主的脑山区。9887%的城乡工矿居民用地处于非敏感区和一般敏感区内，流域内城乡建设用地类型空间布局总体上与生态环境相适应，布局合理；水域、高覆盖度草地和林地的改变会对生态环境造成很大影响，不适宜开发利用。 |
| 英文摘要: |
| In this paper， the rationality of land resource utilization in Huangshui Basin was analyzed from the perspective of ecological sensitivity and land use ecological suitability， the environmental carrying capacity of land resources was evaluated with constraint of ecological land use. The results showed that in this basin， the proportion of moderate sensitive area was 41.70%， which was the largest and mainly located in high or moderate coverage grasslands and woodlands， water area， and the unused land in the intersection of Qianshan District and Naoshan District. The proportion of high sensitive area was 15.13%， which concentrated in Naoshan District， woodland dominated. 98.87% of industrial， mining and residential land in urban and rural area located in non sensitive or general sensitive areas. The spatial layout of urban and rural construction land was reasonable and adapted to ecological environment. The changes of water area， high coverage grasslands and woodlands had a great impact on the ecological environment， which was unsuitable for development and utilization. |
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