發(fā)布時間：2018-03-20 03:34

  本文選題：生態(tài)安全格局　切入點：源地識別　出處：《地理研究》2017年03期 　論文類型：期刊論文

【摘要】：生態(tài)安全格局構(gòu)建是保障城市生態(tài)安全,實現(xiàn)城市可持續(xù)性發(fā)展的重要途徑,也是景觀生態(tài)學(xué)研究的熱點領(lǐng)域之一。生態(tài)源地識別與空間阻力面構(gòu)建一直是生態(tài)安全格局構(gòu)建中的技術(shù)難點。以廣東省云浮市為例,從生態(tài)系統(tǒng)服務(wù)重要性、生態(tài)敏感性與景觀連通性三個方面識別生態(tài)源地,利用DMSP/OLS夜間燈光數(shù)據(jù)修正基本生態(tài)阻力面,并運用最小累積阻力模型判定生態(tài)廊道,從而綜合構(gòu)建云浮市生態(tài)安全格局。研究表明:云浮市生態(tài)源地占全市總面積的36.47%,主要分布在西部與南部的山林地。云浮市生態(tài)廊道總長度為508.87 km,其中景觀廊道總長度為315.58 km,組團廊道總長度為193.29 km,呈環(huán)狀輻射分布于植被覆蓋相對較好的山區(qū)地帶。全市16個自然保護區(qū)基本都位于生態(tài)源地范圍內(nèi)。構(gòu)建的"重要性—敏感性—連通性"框架可以為區(qū)域生態(tài)安全格局構(gòu)建提供新思路,從而有效指引相關(guān)空間規(guī)劃。
[Abstract]:The construction of ecological security pattern is an important way to guarantee the urban ecological security and realize the sustainable development of the city. It is also one of the hot research fields of landscape ecology. The identification of ecological source and the construction of space resistance surface are always the technical difficulties in the construction of ecological security pattern. Taking Yunfu City, Guangdong Province as an example, the importance of ecosystem service is considered. Three aspects of ecological sensitivity and landscape connectivity were used to identify ecological sources, and the basic ecological resistance surface was corrected by DMSP/OLS night light data, and the ecological corridor was determined by minimum cumulative resistance model. The study shows that the ecological source of Yunfu city accounts for 36.47% of the total area of the city, mainly distributed in the mountains and forests in the west and south of the city. The total length of the ecological corridor in Yunfu city is 508.87 km, of which the landscape corridor is located. The total length is 315.58 km and the total length of the organized corridor is 193.29 km, which is distributed in the mountainous areas with relatively good vegetation coverage. The 16 nature reserves in the whole city are basically located in the ecological source areas. The "connectedness" framework can provide new ideas for the construction of regional ecological security pattern. In order to effectively guide the relevant spatial planning.
【作者單位】： 北京大學(xué)深圳研究生院城市規(guī)劃與設(shè)計學(xué)院城市人居環(huán)境科學(xué)與技術(shù)重點實驗室;北京大學(xué)城市與環(huán)境學(xué)院地表過程分析與模擬教育部重點實驗室;
【基金】：國家自然科學(xué)基金項目(41271195)
【分類號】：X321;TU984

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