武汉市东湖风景区生境质量优化研究

Optimizing the Habitat Quality of the East Lake Scenic Area in Wuhan

关键词:  风景园林  生物多样性  格局优化  生境质量  风景名胜区

Key words:  landscape architecture  biodiversity  pattern optimization  habitat quality  scenic and historic area

摘要:

中国市县域范围内散布的风景名胜区是区域生物 多样性支持的主要载体，鉴于其生态系统的稳定性较多地依 赖于人工保护和修复措施，有必要对其生境状况进行评估与 优化。旨在基于高精度数据探究以生境格局优化为媒介的生 境质量提升路径。选取武汉市东湖风景区为例证区域，运用 MSPA+MCR格局优化模型结合InVEST模型，评估了生境质 量对生境格局优化的响应特征。研究结果表明：在武汉东湖风 景区共识别出19种生境类型，以及潜在可构建生态廊道105 条；通过“复绿、增绿、完善”的生境格局优化策略使区内高 质量生境面积增加了约165hm2 。评估路径对相似区域的生境 优化具有可行性，且对区域的生物多样性保护具有积极意义。

Abstract:

The scenic and historic area scattered within the city and county areas in China play a crucial role in supporting urban biodiversity. Thus it is necessary to optimize the habitat quality of these areas according to the complexity of their adjacent threat sources. Taking Wuhan East Lake Scenic Area as an example, this research aims to explore the method for improving habitat quality through the optimization of habitat pattern. It firstly identifies habitat types based on high-resolution remote sensing data, then approaches the MSPA+MCR model to optimize the habitat pattern and InVEST model to model the habitat quality value. The results show that the optimization of the habitat pattern has increased the overall habitat unit value of the East Lake Scenic Area by 1.33%, and the area of habitat quality with high value increased about 165hm2 . The evaluation path in this paper is feasible for the optimization of habitats in similar areas and has positive significance for the protection of regional biodiversity