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Position: Home > Articles > Phosphorus characteristics of urban soil and its relationship with P concentration in groundwater Chinese Journal of Applied Ecology 2001,12 (5) 735-738

城市土壤磷素特性及其与地下水磷浓度的关系

作  者:
卢瑛;龚子同;张甘霖
单  位:
中国科学院南京土壤研究所
关键词:
P;城市土壤;地下水
摘  要:
采集了 8个南京市的城区土壤剖面及同位置地下水样品 ,进行了P素特性的研究 .结果表明 ,城市土壤的全P、有效P和可溶性P含量分别为 1.2 6~ 11.41g·kg-1、19.48~ 166.74mg·kg-1和 0 .5 1~ 5 .41mg·kg-1,远高于相同地区的农业土壤 ;土壤有效P与全P呈极显著正相关 ,土壤可溶性P与全P、有效P的相关性达到极显著水平 ,而土壤有机C、全N与土壤全P、有效P、可溶性P不相关 .城市地下水中溶解态P和总P的浓度分别为 0 .0 10~ 1.75 9mg·L-1和 0 .0 79~ 1.876mg·L-1,它们之间呈极显著相关性 .地下水中溶解态P、总P浓度与土壤剖面全P、有效P、可溶性P的加权平均值的相关性达到极显著或显著水平 .
译  名:
Phosphorus characteristics of urban soil and its relationship with P concentration in groundwater
作  者:
LU Ying,GONG Zitong and ZHANG Ga nlin( Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008)
关键词:
Phosphorus, Urban soil, Groundwater.
摘  要:
Based on the data from 8 soil profiles,the phosphorus characteristics of soils a nd groundwater in Nanjing urban area were studied. The results showed that the c oncentrations of total P, available P and soluble P in urban soils were 1.26~11 .41g·kg -1 , 19.48~166.74mg·kg -1 and 0.51~5.41 mg·kg -1 , res pectively , much higher than those in agricultural soils in the same region.An extremely s ignificant positive correlation was found between available P and total P,and be tween soluble P and total and available P.There was no significant correlation b etween organic carbon, total N and total P, available P and soluble P in the urb an soils. The concentrations of dissolved P and total P in groundwater were 0.01 0~1.759mg·L -1 and 0.079~1.876mg·L -1 ,respectively,and they were significantly correlated to the weighted average contents of total P,available P , and soluble P in the urban soil profiles.

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