Construction and Application of Evaluation Index System for Disaster Prevention and Reduction Suitability of Park Green Space System in Small Towns
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摘要: 与城市公园绿地体系防灾避险规划相比,小城镇因在规模、选址、人口、经济和产业等方面的特殊性,其公园绿地体系防灾避险规划不能简单复制城市的经验,因此构建一套与小城镇公园绿地体系防灾避险规划相协调的适宜性指标体系是本次研究的重点。本文结合小城镇发展特点,构建小城镇公园绿地体系防灾避险适宜性指标体系,利用ArcGIS构建数据分析库,对河北省唐山市迁西县公园绿地体系防灾避险适宜性进行评价。结果表明,迁西县中心城区公园绿地体系规划有待进一步改善,公园绿地在数量上虽已达标,但未充分考虑与小城镇社会环境和灾害环境的空间关系。该评价结果不仅为小城镇公园绿地体系防灾避险规划对策的制定提供定量依据和方法支持,同时对小城镇灾害管控能力的提高也具有重要意义。Abstract: Compared with the disaster prevention and reduction planning of park green space system in city, the planning of small town's park green space system cannot simply replicate the experience of city, because of its particularity in the aspects of scale, site selection, population, economy and industry. Therefore, the key point of this study is to build a set of suitability evaluation index system that is coordinated with the disaster prevention and reduction planning of park green space system in small towns. Based on the development characteristics of small towns, this paper constructs the evaluation index system of the suitability of park green space system for disaster prevention and reduction in small towns, and uses ArcGIS to build an analysis database to evaluate the suitability of disaster prevention and reduction of park green space system in Qianxi county. The results show that the planning of park green space system in Qianxi county needs to be further improved. Although the number of park green spaces has reached the standard, the spatial relationship between park green spaces and social environment and disaster environment in small towns has not been fully considered. The evaluation results not only provide basis for disaster prevention and reduction planning of park green space system in small towns, but also have important significance for the improvement of disaster control ability in small towns.
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