| 1. | The influence of urban green land on air negative ions 城市绿地对空气负离子的影响 |
| 2. | On ecological planning of urban green land 城市绿地系统规划理性化之认识 |
| 3. | Urban green land and urban green land system 城市绿地183 ;城市绿地系统 |
| 4. | Calculation on compensation value of urban green lands for 城市绿地补偿价值计算方法及其应用 |
| 5. | The soil seed bank of urban green land contains some potential populations , some plants can be used for city afforestation 城市绿地土壤种子库中蕴藏着一些潜在种群,有些植物种可以用于城市绿化建设。 |
| 6. | The abundant degree of plants , seed seedling amount , and the diversified index in the seed bank of the urban green land are lower than the natural second growth forest in outer suburbs 城市绿地土壤种子库中种的丰富度、种子苗量、多样性指数均不如远郊区山地天然次生林。 |
| 7. | Results show that policy of increasing green coverage ratio would bring significant contributions to increase urban green land area and its modification ability to air purification effect 研究发现:国内营建业?能长期实施?覆? ,将能具体增加都市?地面积并增进?地吸收污染气体能? ,具备净化都市空气之效果。 |
| 8. | According to the basic principles of the urban greenland virescence system and scenic spot bionomics , an overall scheme of the construction of the systematic greenland of chenzhou city should be made , namely , the construction of a reasonable urban ecological green land system , the enlargement of the public urban green lands , the construction of the space structure , strengthened management , rigid administration , featured city character , which may all contribute to constructing chenzhou into a city in for - est 根据城市绿地系统规划及景观生态学的基本原理,今后郴州市城市园林绿地系统的建设,应该统筹规划,建设合理的城市生态绿地系统;扩建城市公共绿地面积,构建城市绿地空间结构;强化管理,严格执法;突出城市特色,建设林中之城。 |
| 9. | Furthermore , problems on how to increase quality and quantity of green land , how to improve species diversity and how to give rein to the ecological benefit and so on were also studied , in order to provide some measures for urban green land system construction and planning 并在此基础上分析探讨了21世纪的上海在绿地系统建设中应如何提高绿化数量、改善绿地质量、提高生物的多样性和空间异质性、发挥生态效益、丰富绿化形式等诸多问题,尝试为今后的规划提供一些对策。 |