福州市不同类型绿地植被多样性与生态效益关联研究

Study on the Relationship Between Vegetation Diversity and Ecological Benefit of Different Types of Green Land in Fuzhou City

通过实地测量、数据收集与资料分析,计算福州市五个不同类型城市绿地区域植被群落多样性,从降温效益、增湿效益、遮光效益和挡风效益四方面探究该区域生态效益的综合评价值。运用定性分析和相关性分析等方法,对不同类型绿地植被物种多样性与生态效益的相关关系进行分析与研究。结果表明:(1)福州市不同类型绿地植被群落总体物种多样性指数大小排序为公园绿地(1.3)>商业区(1.18)>居住区(1.04)>工业区(0.86)>道路区(0.57);(2)不同类型绿地植被生态效益大小排序为公园绿地(0.98)>商业区(0.57)>居住区(0.49)>工业区(0.31)>道路区(0.03);(3)不同类型绿地植被生态效益的差异性与群落总体多样性指数存在显著正相关,且相关系数为0.958。该研究从植被群落物种多样性角度,对福州市生态效益较差的绿地类型提出综合改造建议,以期在城市绿地植被的规划和发展方面提供理论参考和依据。

Through the field survey,data collection and data analysis,the diversity of vegetation communities in five different types of urban green space in Fuzhou was calculated,the comprehensive evaluation value of ecological benefit in this area is explored from four aspects:cooling efficiency,humidification efficiency,shading efficiency and sheltering wind efficiency.Using qualitative analysis and correlation analysis,this paper analyzed and studied the correlation between species diversity and ecological benefit of different types of greenbelts vegetation.The research shows that:(1)the order of total species diversity index of different types of green vegetation communities in Fuzhou was:park greenbelt(1.3)>commercial area(1.18)>residential area(1.04)>industrial area(0.86)>road area(0.57);(2)the ecological benefits of different types of green land vegetation was as follows:park green space(0.98)>business district(0.57)>residential area(0.49)>industrial zone(0.31)>road area(0.03).(3)There was a significant positive correlation between the ecological benefit of different types of green vegetation and the total diversity index of the community,and the correlation coefficient was 0.958.From the perspective of species diversity of vegetation community,this research puts forward comprehensive improvement proposals for the green land with poor ecological benefit in Fuzhou,so as to provide theoretical reference and basis for the planning and development of urban green land vegetation.