杭州市主城区居住生态环境评价

随着社会经济的快速发展和工业化、城市化的快速推进,城市生态环境日益恶化,城市生活诉求逐渐转向对居住生态环境的关注。对居住生态环境进行评价,有助于为城市发展规划、环境规划,以及城市房地产的区域开发模式和开发方向提供科学依据。采用主成分分析方法,定量研究了杭州市主城区居住生态环境质量及其空间格局。结果表明:杭州市主城区居住生态环境质量基本呈从风景旅游区向城市中心区和北部工业区递减的梯度结构;植被、交通、地表温度、人口密度和空气质量是影响居住生态环境的关键因素,决定了杭州市主城区居住生态环境的总体格局,而工业密度和水体覆盖率对少数区域的居住生态环境有着重要影响。良好的居住生态环境是未来杭州市不断增强城市竞争力的重要资本,应根据不同城市区域居住生态环境限制因素的特点,因地制宜地采取相应措施,加大居住生态环境脆弱区的保护和建设。

The assessment on residential ecological environment in the central city of Hangzhou

With the development of social economy and promotion of industrialization and urbanization, the urban ecological environment has been deteriorating. Therefore, more attention has been paid to the residential ecological environment. The assessment of residential ecological environment is crucial, as it can provide scientific basis for urban development planning, environmental planning, as well as the allocation of the urban real estate projects. Through principal component analysis, this paper developed a quantitative analysis on the quality and spatial pattern of residential ecological environment in the central city of Hangzhou. The results suggested that the residential ecological environmental quality decreased in a gradient from scenic tourist spot to urban central area and industrial area. Vegetation, traffic, land surface temperature, population density and air quality were key factors that had influenced residential ecological environment, and played an important role in determining the overall pattern of residential ecological environment. Meanwhile, industry density and water coverage had large impact on the residential ecological environment of some districts. As good residential ecological environment was important to strengthen the competitiveness of Hangzhou, measures need to be adopted to protect and repair fragile zones of residential ecological environment according to the characteristics of the key impact factors.