贵州省石漠化敏感区生态红线空间分异与管控措施研究

发布时间：2018-06-21 06:30

本文选题：生态红线 + 石漠化敏感区　；参考：《长江流域资源与环境》2017年04期

【摘要】：贵州省石漠化演变态势遏制了长江、珠江流域的生态安全需要。为响应国家生态环境保护与修复政策,加强长江上游生态保护工作,遏制贵州省生态环境恶化趋势,研究基于遥感和GIS技术,针对贵州省喀斯特石漠化等典型生态环境问题,依据《生态红线划定技术指南》(2015-06)建立敏感性评价指标体系及评价模型,评价贵州省石漠化敏感性现状,划定石漠化敏感区生态保护红线,定量揭示贵州省石漠化敏感区生态红线现状及地域分异,并根据贵州省石漠化治理实际情况,提出具体管控措施。结果表明:(1)2011年贵州省石漠化敏感性以强度敏感性为主,面积达36 227.83 km~2,占全省喀斯特地貌面积的32.23%,总体分布规律呈条带状分布;(2)通过叠加分析得出石漠化敏感区的空间分布与石漠化现状有一定关系,表现为除去无明显石漠化、潜在石漠化、不敏感性、轻度敏感性之外,已石漠化土地与中度以上敏感性所占面积比例变化趋势呈正相关。(3)贵州省石漠化敏感区生态红线面积达6 814.25 km~2,占全省国土面积的3.87%;主要由破碎斑块组成,较集中分布于贵州北部、南部及西部地区,其中遵义市、毕节市以及黔南州面积最大、最集中;(4)石漠化敏感区生态红线的管控措施应实施治理与保护并行,主要以保护为主,同时,加强石漠化敏感区综合治理以及生态保护政策体系建设。
[Abstract]:The evolution of rocky desertification in Guizhou Province has restrained the ecological security needs of the Yangtze and Pearl River basins. In order to respond to the national ecological environment protection and restoration policy, strengthen the ecological protection work in the upper reaches of the Yangtze River and curb the trend of ecological environment deterioration in Guizhou Province, the typical ecological environment problems such as karst rocky desertification in Guizhou Province are studied based on remote sensing and GIS technology. The sensitivity evaluation index system and evaluation model were established according to the Technical Guide for Eco-Red Line Delimitation (2015-06). The sensitivity status of rocky desertification in Guizhou Province was evaluated, and the red line of ecological protection in the sensitive area of rocky desertification was delineated. The present situation and regional differentiation of ecological red lines in rocky desertification sensitive areas of Guizhou Province are revealed quantitatively. According to the actual situation of controlling rocky desertification in Guizhou Province, concrete control measures are put forward. The results showed that the sensitivity of rocky desertification in Guizhou Province in 2011 was mainly intensity sensitivity. The area reaches 36 227.83 km2, accounting for 32.23% of the karst landform area in the whole province, and the overall distribution law is striped.) by superposition analysis, it is concluded that the spatial distribution of the sensitive area of rocky desertification is related to the present situation of rocky desertification, which shows that there is no obvious rocky desertification. Potential rocky desertification, insensitive, mildly sensitive, There is a positive correlation between the proportion of rocky desertified land and the area with moderate sensitivity. (3) the area of ecological red line in rocky desertification sensitive area of Guizhou Province is 6 814.25 km ~ (2), which accounts for 3.87% of the land area of the province, and is mainly composed of broken patches. In the northern, southern and western regions of Guizhou, Zunyi, Bijie and Qiannan prefectures have the largest area, and the most concentrated ecological red line in the sensitive area of rocky desertification should be managed and protected in parallel, mainly with protection. At the same time, we should strengthen the comprehensive management of rocky desertification sensitive areas and the construction of ecological protection policy system.
【作者单位】：贵州师范大学喀斯特研究院;国家喀斯特石漠化防治工程技术研究中心;
【基金】：国家重点基础研究发展计划项目(973计划)(2012CB723202) 国家自然科学基金(41301504) 贵州省重大应用基础研究项目(黔科合JZ字[2014]200201) 贵州省发展和改革委员会委托-2015年贵州省节能减排省级专项资金投资计划项目(黔发改环资[2015]1612号)~~
【分类号】：X171;X321

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