广州城市绿地土壤特征及其对树木生长的影响

研究广州城市绿地土壤的特征,并探讨其对树木生长的影响。结果表明:广州城市绿地土壤受到不同程度的人为干扰。其中公园和大学校园树林土壤的理化性质虽有一定改变,但仍接近自然土壤的状况;行道树的土壤则过于紧实,且pH值太高,而有机质及氮、磷含量较低。这些土壤问题会对行道树的生长造成不利的影响。文中对这些存在的问题提出了一些相应的改善措施。 

The Soil Characteristic of Guangzhou Urban Vegetation and Its Effects on Tree Growth

This paper deals with the soil characteristic of Guangzhou urban vegetation and its effects on tree growth.The results show that although soil of stands in urban parks and university campus had been disturbed by human activites,its properties were still comparable to natural soil.However,the desity and pH were too high;organic is matter,nitrogen and phosphorus were low in soil of roadside trees.These soil problems are disadvantage to roadside tree growth.Some suggestions have been made for improving urban soil.