论文部分内容阅读
随着世界人口的迅速增长,城市规模的不断扩大,城市化将是今后世界范围内的一种必然趋势。因此,研究城市的发展规律以及与城市发展密切有关的生态环境和园林绿化建设,便成为当前应予重视和深入研究的问题。一、城市生态系统及其主要特点现代化城市是一个规模庞大、关系复杂的,多目标、多层次、多功能的动态生态系统。在城市生态系统内,不仅有生物要素(人类、动物、植物、微生物)和非生物要素(光、热、水、气、土、岩石、矿藏等),而且还包含社会和经济各种要素(工业、农业、商业、
With the rapid growth of the world’s population and the continuous expansion of the city’s scale, urbanization will be an inevitable trend in the world in the future. Therefore, studying the development law of the city and the ecological environment and landscaping construction closely related to the development of the city has become a problem that should be emphasized and studied in depth. I. Urban ecosystems and their main features Modern cities are large-scale, complex, multi-objective, multi-level, multi-functional dynamic ecosystems. In urban ecosystems, there are not only biological elements (human, animals, plants, microbes) and non-living elements (light, heat, water, gas, earth, rocks, mineral deposits, etc.) but also social and economic elements ( Industry, Agriculture, Business,