野生栎树群落的土壤环境特征及其在城区成功恢复的土壤改良途径

Soil environmental features of a wild oak community and the way to improve the soil of urban areas

选取野生栎树群落和城市人工绿地,分别进行了土壤容重、pH值、有机质、碱解氮、速效钾、有效磷含量的研究分析。结果表明:野生栎树群落的土壤有机质、碱解氮、速效钾含量均高于城市人工绿地,只有有效磷含量低于城市人工绿地。野生栎树群落对土壤养分的作用规律总体表现为:土壤有机质、碱解氮、速效钾、有效磷含量向土壤上层富集,而城市人工绿地对土壤养分的影响与之不同。

The wild oak community and the urban landscape were choosed respectively for the analysis of their soil bulk density,pH,soil organic matter,alkalihydrolyzable nitrogen,soil available potassium and available phosphorus.The results showed that the soil organic matter,alkali-hydrolyzable nitrogen and soil available potassium of the wild oak community were higher than which in urban landscape,while available phosphorus content was less than which in urban landscape.The soil organic matter,alkali-hydrolyzable nitrogen,soil available potassium and available phosphate were rich in the top layer soil of the wild oak community.On the other hand,the urban landscape had the different effects on the soil nutrient.