基于3S的哈尔滨市城区绿地现状分析

为了解、研究哈尔滨市区的绿化现状,给城市决策者在长期规划时提供良好的理论支持,达到城市生态环境建设的要求,利用3S技术与外业调查相结合的方法,对哈尔滨市的3条环线区域和5个市级行政区绿地的现状进行了分析,结果表明:哈尔滨市区中公园绿地为城市绿地的39%,占绝大部分,居民区绿地的建设规模较小,为6%;从乔木、灌木以及草本的比例结构中可以看出,草本植物所占比例较大,为19%。植被单一出现情况比较多,单一草本面积占绿地百分比较高,乔灌草混交类型这种城市中比较合理的绿化方式在哈尔滨城市绿化过程中应用较少,有待改进。

Status Analysis of Urban Green Spaces in Harbin Based on 3S

The current situation of the urban green system of three city-round highway regions and five municipal districts in Harbin was analysed in order to provide a good theoretical support for the decision makers in long-term planning to meet the ecological construction requirements. Results show that the green space in park takes a large proportion in Harbin Urban green space, accounting for 39 percent of the total green spaces. And green space in residential area takes a small proportion, only 6 percent. In terms of the proportion and structure of arbor, shrub and herb, herbaceous plants hold a larger proportion (19%). Single vegetation type could be found in many urban green spaces, and the area proportion of herbaceous plants is higher. Mixed pattern of arbor, shrub and herb, a more reasonable way of afforestation in Harbin, is less applied, which needs to be improved.