Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Phosphorus Forms and Adsorpyion-desorption Characteristics of Urban Soils in Nanjing

LU Ying 1,2 ,GONG Zi-tong 2,ZHANG Gan-lin 2 (1 College of Resources and Environmental Science,South China Agricultural University Guangdong,Guangzhor,510642; 2 Instiute of Soil Science,Chinese Acsdemy of Sciences,Jiangsu Nanjing,210008,China)  
The contents and proporation of organic P,and inorganic P, and P adsorption-desorption characteristics of urban soils in Nanjing were studied.The results indicated that:with the increase of soil total P content,the content of soil Al-P,Fe-P,Ca-P and the raito of Al-P to total P increased, and the ratio of organic P to total P,the ratio of Fe-P to total P decreased.Urban soils in Nanjing had lower P adsorption amount,higher P desorption amount and higher P desorption ratio as compared with non-urban natural soils.The high content and proporation of Al-P,low P adsorption capacity and high P desorption ratio led to high P concentration in groundwater.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved