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研究了旅游和环境污染对广州城市公园森林群落土壤理化性质、植物种类多样性、群落结构和演替以及环境质量的影响.结果表明，由于旅游干扰，城市公园森林土壤的容重增加，而表土的物理性黏粒（＜0.01mm）、有机质和总氮含量降低.植物种类数目及多样性也随旅游强度的增加而降低.由于人为干扰，群落的结构变得简单，群落演替缓慢或停止.此外，环境污染也影响着城市公园植被,公园内植物叶中的硫和重金属含量明显高于远离污染源的中山大学校园树叶中的硫和重金属含量．
The effects of tourism and environmental pollution on soil physical and chemical properties, plant species diversity, community structure and succession and environmental quality in urban forest communities in Guangzhou City were studied.The results showed that the bulk density of forest soils in urban parks increased due to tourism disruption, Physical clay (<0.01mm) decreased the content of organic matter and total nitrogen, and the number and diversity of plant species also decreased with the increase of tourism intensity. Due to human disturbance, the community structure became simple and the community succession slowed or stopped. In addition, the environmental pollution also affects the urban park vegetation. The contents of sulfur and heavy metals in plant leaves in the park are obviously higher than the sulfur and heavy metals in the leaves of the campus of Sun Yat-sen University far away from the pollution sources.