郑州市10种常见行道树健康评价

采取随机抽样法，对郑州市30条主要道路中10种常见行道树进行健康评价。结果表明，大部分行道树生长基本健康，大叶女贞(Ligustrun lucidum)、垂柳(Salix babylonica L.)长势较好，健康植株数量多；银杏(Ginkgo biloba)枯枝现象严重；紫叶李(Prunus cerasifera)、黄山栾(Koelreuteria bipinnata)易遭受病虫害侵害，危害严重的虫害有蚧壳虫、蚜虫；悬铃木(Platanus acerifolia)树干洞穴、树干损伤较为严重；国槐(Sophora japonica)病虫害危害严重，树势较差，倾斜严重。针对不同树种的健康状况，在管养方面提出加强生物多样性保护、定期检测幼苗生长状况、及时采取措施消除人为因素对行道树健康状况的影响等优化建议。

Health Evaluation of 10 Common Street Trees in Zhengzhou

A random sampling method was adopted to evaluate the health of the 10 most common street trees among the 30 main roads in Zhengzhou. The results showed that most of the street trees grew healthy, including Ligustrun lucidum and Salix babylonica, which grew well and had many healthy plants; the dead branches of Ginkgo biloba were serious; Prunus cerasifera and Koelreuteria bipinnata were prone to pests and diseases; the largest number of pests were scale insects and aphids; trunk caves and trunk damage of Platanus acerifolia were more serious; Sophora japonica had poor tree vigor and serious tilt. In view of the health conditions of different tree species, this paper put forward optimization suggestions for management and maintenance, such as strengthening biodiversity protection, regularly monitoring the growth status of seedlings, and taking timely measures to eliminate the impact of human factors on the health status of street trees.