Study on the Ecological Stoichiometric Characteristics of Soil in Urban Green Spaces of Taiyuan City
62 representative urban green space sampling points in the built-up area of Taiyuan City were selected,soil sam-ples at depths of 0 cm～10 cm,10 cm～20 cm and 20 cm～30 cm were collected to analyze their organic carbon,total ni-trogen,total phosphorus contents and calculate the soil carbon,nitrogen,phosphorus ecological stoichiometry ratio.The re-sults showed that the contents of organic carbon and total phosphorus of urban green spaces in Taiyuan City were highest in production green spaces and lowest in park green spaces,while the total nitrogen content showed little difference.From the perspective of soil depth,the distribution of organic carbon,total nitrogen and total phosphorus contents in different types of green spaces was different.The soil C/N average ratio was 50.22,with production green spaces having the highest value and park green spaces having the lowest value.The soil C/P average ratio was 11.34,the average value of attached green space and protection green land was greater than that of park green spaces and production green spaces.The soil N/P aver-age ratio was 0.24,with little difference among different types of green spaces.The trend of soil ecological stoichiometry with soil layers varies among different types of green spaces,and the soil C/N ratio was consistently higher in the surface layer than in the lower layer.Except for production green spaces,there were strong positive correlations between soil C/P ratio and organic carbon content,soil C/N ratio and organic carbon content,soil N/P ratio and nitrogen content in other types of green spaces.
Urban green spaceEcological stoichiometric characteristicsSoilOrganic carbonNitrogenPhosphorus
NETL
NSTL
万方数据
