高度城市化地区生态廊道重要性评价探索--以深圳为例

发布时间：2019-04-07 18:35

【摘要】：在高度城市化背景下,开展生态廊道重要性评价研究,对维护城市生态安全格局具有重要意义。选取高度城市化但同时物种多样性较高的深圳作为研究区,构建基于主导功能分类的生态廊道重要性评价方法,为生态廊道精细化管理和布局优化提供科学依据。结果表明:(1)通过最小累积阻力面模型识别的源间连接廊道大部分与已规划廊道重合,但仍有少部分未被覆盖,应将其规划为生态廊道并严格管控。(2)各相邻城市组团间均有大型生态斑块或组团隔离廊道予以隔离,应控制组团隔离廊道内部建设用地规模。(3)根据重要性评价,8条生态廊道被纳入一级生态廊道,12条被纳入二级生态廊道,一级生态廊道基本兼具生物和景观连通、组团隔离两种功能,具有不可替代性且自身情况较好,对生物多样性维护及阻止建设用地无序蔓延有着十分重要的作用,应纳入基本生态控制线一级管制区进行严格管控。
[Abstract]:Under the background of high urbanization, the study on the importance of ecological corridor is of great significance to the maintenance of urban ecological security pattern. In order to provide scientific basis for fine management and layout optimization of ecological corridor, Shenzhen, which is highly urbanized but with high species diversity, is chosen as the study area to construct the ecological corridor importance evaluation method based on dominant function classification. The results show that: (1) most of the source-to-source corridors identified by the minimum cumulative resistance surface model are coincident with the planned corridors, but a few of them are not covered. It should be planned as an ecological corridor and strictly controlled. (2) there are large ecological patches or isolated corridors among adjacent cities to be isolated, and the scale of construction land within the isolated corridors should be controlled. (3) according to the importance evaluation, Eight ecological corridors were incorporated into the first ecological corridor, and 12 ecological corridors were included in the second ecological corridor. The first ecological corridor had two functions: biological and landscape connectivity, and group isolation, which was irreplaceable and its own situation was better. It plays a very important role in biodiversity maintenance and preventing the disorderly spread of construction land. It should be brought into the primary control area of basic ecological control line for strict control.
【作者单位】：深圳市规划国土发展研究中心;北京大学深圳研究生院;
【分类号】：X826

【参考文献】