东营市中心城绿地园林植物构成及优化策略

1、    东营市中心城绿地园林植物构成及优化策略    李玉玲周庆芳燕东波石磊丁晨旸李萍摘要  为提高东营市中心城园林植物配置的科学性，选取市区内500个样地作调研，结果表明，东营市植物种类共计57科105属196种，其中乔木103种，占总数的53%，灌木63种，占总数的32%，草本植物30种，占总数的15%。乔灌草比例为3.521，常绿与落叶植物的物种比例为14.2。城市总体绿地植物多样性较低，东城区>西城区>经济技术开发区，各城区差异性显著。优化建议包括增加城市优良乔木、加大草本数量级丰富度、调整乔灌比、引进新品种、提高多样性等。

2、关键词  绿地;植物构成;优化策略;东营市  s688      a  0517-6611（2019）24-0136-03doi：10.3969/j.issn.0517-6611.2019.24.041plant species composition and optimization strategy of green land in dongying central cityli yu-ling， zhou qing-fang， yan dong-bo et al  （dongying city garden

3、greening center， dongying， shandong 257100）abstract  in order to improve the scientific nature of plant composition in central city of dongying city， 500 sample plots in central city were set as targets for study. the results showed that the plants in central city of dongying city belonged to 5

4、7 families， 105 genera and 196 species， among them， 103 species of trees accounted for 53%， 63 species of shrubs accounted for 32%， and 30 species of herbaceous plants accounted for 15%. the proportion of shrubs to herbs was 3.521， while the proportion of evergreen plant to deciduous plant was 14.2.

5、 the plant diversity was low， and the differences between urban areas were significant. optimization recommendations include increasing the citys fine trees， increasing the number and richness of herbs， adjusting the proportion of trees and shrubs，introducing new plant varieties and enhancing diversity， etc.key words  green land;plant species composition;optimization strategy;dongy