【摘要】：在高度城市化背景下,開展生態(tài)廊道重要性評價研究,對維護城市生態(tài)安全格局具有重要意義。選取高度城市化但同時物種多樣性較高的深圳作為研究區(qū),構建基于主導功能分類的生態(tài)廊道重要性評價方法,為生態(tài)廊道精細化管理和布局優(yōu)化提供科學依據(jù)。結果表明:(1)通過最小累積阻力面模型識別的源間連接廊道大部分與已規(guī)劃廊道重合,但仍有少部分未被覆蓋,應將其規(guī)劃為生態(tài)廊道并嚴格管控。(2)各相鄰城市組團間均有大型生態(tài)斑塊或組團隔離廊道予以隔離,應控制組團隔離廊道內(nèi)部建設用地規(guī)模。(3)根據(jù)重要性評價,8條生態(tài)廊道被納入一級生態(tài)廊道,12條被納入二級生態(tài)廊道,一級生態(tài)廊道基本兼具生物和景觀連通、組團隔離兩種功能,具有不可替代性且自身情況較好,對生物多樣性維護及阻止建設用地無序蔓延有著十分重要的作用,應納入基本生態(tài)控制線一級管制區(qū)進行嚴格管控。
[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.
【作者單位】： 深圳市規(guī)劃國土發(fā)展研究中心;北京大學深圳研究生院;
【分類號】：X826

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