关键词：
Citygreen模型;生态效益;价值;城市森林;不同城市;安徽
摘 要：
为科学合理地规划与经营城市森林,开展城市森林功能的评估,基于GIS技术,运用Citygreen模型对安徽省合肥市、蚌埠市、马鞍山市城市森林斑块景观格局进行了解读,并对其生态效益作了货币化定量比较。结果表明:这3个市城市森林斑块的土地占有率按其地理位置从北到南呈递增的趋势;马鞍山市较好地利用了市区山体建设城市森林,合肥市环城公园城市森林特点显著,蚌埠市建成区城市森林的可用地小,影响城市森林发展。在建成区尺度,城市森林生态效益与城市森林覆盖率关系最为密切。马鞍山市城市森林斑块面积总量高、分布相对均匀,获得的效益最高,达6.08亿元;其次为合肥市,为5.69亿元,蚌埠市最低,为3.12亿元。另外,在城市森林的生态效益中削减暴雨形成的径流及推迟径流出现时间产生的效益最高,可占总效益的77%～83%。Citygreen模型可为城市森林生态效益的评价提供平台。
译 名：
Comparison of Ecological Benefits of Urban Forests in Anhui Province Based on GIS
作 者：
Zhang Lei(Department of Life Sciences Huainan Normal College,Huainan 232001,P. R. China); Wu Zemin,Wu Wenyou(Anhui Agricultural University)
关键词：
City-green model; Ecological benefits; Values; Urban forests; Cities; Anhui
摘 要：
GIS and City-green model were employed to make analysis of urban forest patches in Bengbu,Hefei,and Maanshan in Anhui Province. Ecological benefit values of urban forest patches in the three cities were compared. Results indicate that the proportions of area occupied by urban forest patches in the three cities show an increasing trend from north to south according to their geographical locations. Urban forests were built on hill site of inner city in Maanshan; the ring park exhibited typical characteristics of urban forests in Hefei; open space for establishing urban forests was limited in current urban area of Bengbu,which inhibited the development of urban forests. The ecological benefit of urban forest has great relevance to its land occupation. Maanshan has the highest ecological benefit of urban forest (608 million yuan) due to the highest land proportion of urban forest patch and its even distribution pattern,then followed by Hefei (569 million yuan) and Bengbu (312 million yuan). In the ecological benefits of urban forest patches,the benefit of rainfall interception by urban forest is highest compared with other benefits,accounting for 77%~83% of the total value. City-green model is a useful tool for evaluating ecological benefit of urban forest.
