摘要
随着城市化进程的迅速发展,城市生态系统碳循环在全球碳循环中的作用开始受到人们的关注.与自然土壤相比,城市生态系统土壤性质发生了显著的变化,城市化进程对于城市土壤碳含量产生了较大的影响.文章以福州市建成区城市自然绿地和人工管理绿地为对象,研究了自然绿地和人工管理绿地之间土壤有机碳含量的差异以及绿地土壤有机碳含量的垂直分布规律.结果表明：福州市自然绿地景观0~10 cm土层有机碳含量均值比人工管理绿地均值有机碳含量均值降低,且不同人工管理绿地类型之间0~10 cm土层有机碳含量变异性较大,城市各绿地类型土壤有机碳含量均随深度的增加而减少,只有在交通绿地土壤剖面中20~40 cm出现了较高的有机碳含量.
With the development of the urbanization and the influences of human activity,the effects of urban ecosystem carbon cycle on the global carbon cycle began to be paid more attention.Compared to natural soil,the characteristic of urban soils had significantly changed.The urbanization had great effects on soil organic content.We studied the difference in soil organic content between natural and man-manipulated green lands,and vertical structure in Fuzhou city.The result indicted that the mean soil organic carbon content in 0～10 cm layer of natural green lands was lower than that of man-manipulated green lands,and the variation of soil organic carbon content in 0～10 cm layer in different man-manipulated green lands was great.Soil organic carbon content all decreased with soil depth increase.Only for traffic green land,in 20～40 cm layer,the value was higher than top layers.
出处
《杭州师范学院学报（自然科学版）》
CAS
2007年第6期440-444,共5页
Journal of Hangzhou Teachers College(Natural Science)
基金
福建省科技厅K类项目(2005K023)
福建省自然地理学重点学科建设资助项目
关键词
土壤有机碳
自然绿地
人工管理绿地
垂直分布
福州市
soil organic carbon
natural green land
man-manipulated green land
vertical structure
Fuzhou city
