Analysis Method of Greenspace in the Core Area for Biodiversity Conservation in Eastern Suburb of Nanjing City
Analysis Method of Greenspace in the Core Area for Biodiversity Conservation in Eastern Suburb of Nanjing City
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发表时间：
2012
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通讯作者：
Huang Wen-qi
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作者：
Huang Wen-qi
以南京市东郊地区绿色空间系统为研究对象，以2005年SPOT 5卫星遥感数据和2005年南京市快速交通网矢量文件为主要信息源，对斑块等级进行分析，在ArcGIS 9.2和连通度计算软件Conefor Sensinode 2.2的支持下，采用景观重合概率（LCP），研究结果表明，青龙山周边24个绿地斑块面积占研究绿地总面积的35%，其中，青龙山周边24个绿地斑块面积占研究绿地总面积的35%，青龙山周边24个绿地斑块面积占研究绿地总面积的35%，青龙山周边24个绿地斑块面积占研究绿地总面积的35%，南京市东郊生物多样性保护核心区，核心区的平均斑块面积（MPS）和最大斑块指数（LSI）分别比整个研究区大31%和59.46%，而景观边缘密度（艾德）和景观形状指数（LSI）生物多样性保护核心区的生物多样性指数分别比整个研究区低13.55和6.59，对核心区绿色空间的阻隔作用最大的是宁杭高速公路和沪宁高速公路。南京市东郊生物多样性保护核心绿色空间区管理对策提出了快速交通网络的影响。
The green space system in the eastern suburb area of Nanjing City was chosen as the research object,while the remote sensing data of SPOT 5 satellite image taken in 2005 and a vector file of Nanjing rapid traffic network in 2005 were taken as the major information sources to analyze the patch grade,the connectivity and spatial structure of the studied green space under the support of ArcGIS 9.2 and connectivity computation software of Conefor Sensinode 2.2 by taking landscape coincidence probability(LCP),integral index of connectivity(IIC),probability of connectivity(PC),and the important value(dI) as evaluation indexes.The core green space area for biodiversity conservation was determined based on calculation of the connectivity indexes.The research results showed that 24 green space patches around the Qinglong Mount,whose area accounted for 35% of the total studied green space area,consisted in the core area for biodiversity conservation in the eastern suburb area of Nanjing City.The mean patch size(MPS) and the largest patch index(LSI) in the core area was 31% bigger and 59.46% higher respectively than those of in the whole study area.Whereas the landscape edge density(ED) and the landscape shape index(LSI) of the core area for biodiversity conservation was 13.55 and 6.59 lower respectively than those of in the whole study area.The most important barrier effect to the core green space area was brought with the Ning-Hang Highway and the Hu-Ning Express.The countermeasures to manage the core green space area for biodiversity conservation in the eastern suburb area of Nanjing City under the impact of rapid traffic network were put forward in the paper.