摘要
道路生态景观建设是创建生态园林城市的重要内容,也是城市园林景观规划中必不可少的环节。以江苏省黄海海滨国家森林公园的阔叶道路和针阔混交道路为研究对象,基于地基激光雷达(terrestrial laser scanning,TLS)获取三维点云数据。考虑到生态和景观效益,选取固碳量、滞尘量、增湿量、植物美学效益、植物观赏效益和路旁景观融合度6个主要指标,通过均方差法为每个指标赋予权重,对道路生态景观进行综合评价。结果表明:(1)针阔混交道路评价值为2.44,阔叶道路为0.56,这表明对于黄海海滨国家森林公园而言,针阔混交道路具有更好的生态景观效益;(2)相比传统人工样地采集数据的方法,使用TLS扫描采集数据可大大减少时间和人力成本,且数据质量高。该研究可对行道树的生态防护功能做出定量评价,并为城市景观规划提供科学依据。
The construction of road ecological landscape is an important part of building an ecological garden city,and it is also an indispensable link in landscape planning of urban garden.In this study,the roads with broad-leaved trees and the roads with coniferous and broad-leaved mixed trees in Huanghai National Forest Park in Jiangsu Province were taken as the research objects,and the three-dimensional point clouds data was obtained by the terrestrial laser scanning(TLS).Considering the ecological and landscape benefits,a total of six main indicators were selected,including carbon sequestration,dust retention,humidification,plant aesthetic benefits,plant ornamental benefits and roadside landscape integration.Then,the weight values to each indicator were calculated through the mean square error method,and the road ecological landscape was comprehensively evaluated.The results show that:(1)The evaluation value for the roads with coniferous and broad-leaved mixed trees is 2.44,and for the roads with broad-leaved trees is 0.56,which indicates that for the Huanghai National Forest Park,the roads with coniferous and broad-leaved mixed trees have better ecological landscape benefit.(2)Compared with the traditional methods of manually collecting data on the sample plot,the utilization of TLS can acquire high-quality data and greatly reduce time and labor costs.This study can make a quantitative evaluation of the ecological protection function of street trees,and provide a scientific basis for urban landscape planning.
作者
孙心雨
田佳榕
徐雁南
徐昇
李海东
SUN Xin-yu;TIAN Jia-rong;XU Yan-nan;XU Sheng;LI Hai-dong(Centre of Co-Innovation for Sustainable Forestry in Southern China,Nanjing Forestry University,Nanjing 210037,China;College of Information Science and Technology,Nanjing Forestry University,Nanjing 210037,China;Nanjing Institute of Environmental Sciences,Ministry of Ecology and Environment,Nanjing 210042,China)
出处
《生态与农村环境学报》
CAS
CSCD
北大核心
2020年第11期1477-1484,共8页
Journal of Ecology and Rural Environment
基金
国家重点研发计划(2019YFD1100404)。
关键词
行道树
森林公园
点云
生态景观评价
地基激光雷达
street tree
forest park
point clouds
ecological landscape evaluation
terrestrial laser scanning
