摘要
通过分层随机抽样,对郑州市8个城区街道行道树的结构特征、配置模式及健康状况进行了调查。结果表明,郑州市现有街道行道树树种39种,隶属于22科30属,其中常绿树与落叶树的比例为1∶6.8;应用频度较高的行道树有悬铃木(Platanus hispanica)(48.46%)、国槐(Sophora japonica)(10.38%)、黄山栾(Koelreuteria integrifoliola)(8.85%)、女贞(Ligustrum incidum)(8.46%)、白蜡(Fraxinus chinensis)(6.54%),多样性指数为2.225;道路结构以一板两带为主,配置模式中单层模式占比66.91%;生长健康等级一般以上街道行道树占比83.48%。根据郑州市现状,采用增加树种数量、丰富配置模式、加强管理养护等措施,可以改善当前存在的问题。
Through stratified random sampling,the structure features,configuration mode and health status of street trees in eight urbans of Zhengzhou city were investigated. The results showed that there were 39 species of street trees,belonging to 22 families and 30 genera,the ratio between evergreen and deciduous trees was 1∶6.8. The high frequency of street trees were Platanus hispanica(48.46%),Sophora japonica(10.38%),Koelreuteria integrifoliola(8.85%),Ligustrum incidum(8.46%)and Fraxinus chinensis(6.54%),and the diversity index was 2.225. Single carriageway with two green belts pattern occupied the main forms. The ratio of single-layer model was66.91%. The proportion of street trees growing above average was 83.48%. According to the current situation of Zhengzhou,the existing problems can be improved by increasing the number of tree species,enriching the allocation mode and strengthening management and maintenance.
作者
史喜兵
焦雪辉
周小娟
孙毅宁
刘杰
苗兆丰
SHI Xi-bing;JIAO Xue-hui;ZHOU Xiao-juan;SUN Yi-ning;LIU Jie;MIAO Zhao-feng(Zhengzhou Institute of Agricultural and Forestry Science,Zhengzhou 450005,China)
出处
《湖北农业科学》
2020年第9期111-116,共6页
Hubei Agricultural Sciences
关键词
行道树
资源调查
结构特征
多样性指标
郑州市
street tree
resource survey
structural features
diversity index
Zhengzhou city
