河北雄安新区建设的区域地表本底特征与生态管控

发布时间：2018-06-22 03:04

本文选题：雄安新区 + 城市土地利用　；参考：《地理学报》2017年06期

【摘要】：河北雄安新区建设对于实施京津冀协同发展战略及有机疏解北京非首都功能、优化区域空间格局,提升京津冀城市群生态系统服务和改善人居环境具有重要意义。本文基于多期遥感图像、土地利用/覆盖变化数据、生态系统服务评估数据以及高精度城市地表信息等专题数据集,从雄安新区建设涉及的京津冀城市群区域背景和规划区覆盖范围两个层面揭示了新区建设的区域地表本底状态,并提出了相应的生态保护与管控建议。结论表明:京津冀城市群正呈现建设用地快速扩张以及由此导致的下垫面不透水地表高密度连绵集聚式态势,城镇用地和城市不透水地表较2000年分别增长了1.27倍和1.43倍,且接近15%的子流域水生态系统健康状况受到不透水地表的严重影响。雄安新区建设涉及的雄县、容城、安新三县以农田、乡镇及农村聚落和水域及湿地生态系统为主,其开发建设应围绕实现疏解北京非首都功能为目标,适度控制人口、产业规模,建设宜居生态健康城市。规划初期,应将其纳入国家海绵城市建设试点范畴,参照国际低影响度开发模式,加强城市绿色基础设施建设。基于当前下垫面特征,前期规划应考虑构建新区与保定、北京和天津城市之间的绿化生态斑块和生态廊道;新区内建设用地不透水地表整体比例应控制在60%之内,核心区不超过70%。新区建设过程中需确立"以水定城"理念,在新区基础设施建设、供排水方面充分考虑雨水收集和循环利用。
[Abstract]:The construction of Xiong'an New area in Hebei Province is of great significance for implementing the cooperative development strategy of Beijing-Tianjin-Hebei, organically dissolving the non-capital function of Beijing, optimizing the regional spatial pattern, improving ecosystem service and improving human settlement environment of Beijing-Tianjin-Hebei urban agglomeration. This paper is based on multi-period remote sensing images, land use / cover change data, ecosystem service assessment data and high-precision urban surface information. From the two aspects of the regional background of Beijing-Tianjin-Hebei urban agglomeration and the coverage of the planning area, the regional background of the construction of Xiong'an New area is revealed, and the corresponding ecological protection and control suggestions are put forward. The conclusion shows that the urban agglomeration of Beijing-Tianjin-Hebei city is showing the rapid expansion of construction land and the high density and continuous agglomeration of the impervious surface of the underlying surface. The urban land use and the urban impervious surface have increased by 1.27 times and 1.43 times, respectively, compared with the year 2000. Close to 15% of the subbasin water ecosystem health was seriously affected by impermeable surface. The Xiong County, Rongcheng and Anxin counties involved in the construction of Xiong'an New District are mainly farmland, villages and towns, rural settlements, water areas and wetland ecosystems. Their development and construction should focus on the realization of the function of untying Beijing as a non-capital city and moderately control the population. Industrial scale, the construction of a livable ecological healthy city. In the early stage of planning, it should be brought into the scope of national sponge city construction pilot project, and the green infrastructure construction of city should be strengthened according to the international low impact development model. Based on the current underlying surface characteristics, the preliminary planning should consider the construction of green ecological patches and ecological corridors between the new area and Baoding, Beijing and Tianjin, and the overall proportion of the construction land in the new area should be controlled within 60% of the impervious surface. The core area shall not exceed 70. In the process of new district construction, the concept of "setting the city by water" should be established, and Rain Water collection and recycling should be fully considered in the construction of infrastructure, water supply and drainage in the new area.
【作者单位】：中国科学院地理科学与资源研究所;中国科学院大学;中国科学院东北地理与农业生态研究所;
【基金】：北京市自然科学基金重点项目(8171004)~~
【分类号】：TU982.2;X321

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