摘要
伴随着我国城市化进程的加快,城市热岛现象成为了城市生态环境问题的突出表现之一。应用遥感和GIS技术以及景观生态理论,对研究区进行了城市热环境生态安全评价研究。研究结果表明:武汉市城市生态安全危险等级从外向内呈现出逐渐增高的趋势,并且因为城市下垫面的复杂造成了生态安全空间上的交错分布。在今后的城市规划与管理过程中,需加强城市景观的生态建设与保护管理,重点布局优化生态安全较低与生态系统服务缺失地区的生态结构,加强保护城市景观生态安全度较高,生态系统服务价值较高的地区。对整个城市生态景观格局具有很好的支撑与供养作用的林地与农用地,应该推行增加植被盖度的措施,并且逐步消除不安全环境问题隐患,促进城市生态环境向良好的方向优化与发展。
Urban heat island phenomena have become the important urban ecological environment problems with the urbanization speeding up in our country. The paper has carried on the urban thermal environment ecological safety evaluation in the study area based on RS and GIS technology and landscape ecological theory. The results show that: Urban ecological security threat level presents an increasing trend gradually from the outside to the inside. The complex of city underlying surface caused the staggered distribution of ecological safety space. The ecological construction and protection management of urban landscape should be strengthened in the daily management in the future. The ecosystem structure whose ecological security is low and loss of ecosystem services should be optimized. The higher value area of urban landscape ecological security and ecosystem service is to strengthen the protection. The forest and farmland should be put efforts to increase vegetation coverage, because they have very good support role on the whole urban ecological landscape pattern. It may promote urban ecological environment optimization and development towards the good direction by adopting these measures.
出处
《生态经济》
CSSCI
北大核心
2016年第8期165-169,共5页
Ecological Economy
基金
国家社会科学基金(14CGL054)
博士后特别资助基金(2014T70161)
国土资源部资源环境承载力评价重点实验室开放基金(CCA201509)
关键词
空间格局
城市热环境
生态安全
spatial pattern
urban thermal environment
ecological security
