Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Environmental Chemistry》 1990-01
Add to Favorite Get Latest Update

FRACTIONATION AND AVAILABILITY OF ADDED SOLUBLE CADMIUM IN SOIL ENVIRONMENT

Han Fengxiang (Institute of Soil Science, Academia Sinica)Hu Aitang Qin Huaiying(Nanjing Agricultural University)Han Fengxiang (Institute of Soil Science, Academia Sinica)  
Fractionation and availability of added cadmium with two load levels in three soil environment(acidic,neutral and calcareous soils)were studied.Results show that exchangeable cadmium(EXC-Cd)is about 40-50%,60-80% and 10-20% in acidic,neutral and calcareous soil,respectively,and cadmium wea-ky bound to organic mattcr(WBO),cadmium residue in primary and secondary minerals(RES-Cd)and cadmium bound to carbonate(CARB-Cd)accounted to be 5-20%,10-70% and 10-20%,respectively,Distribution coeffient(DC)of EXC-Cd increased with the level,but that of RES-Cd decreased.Results also show that EXC-Cd were the most active or available form,and then WBO-Cd in Acidic-neutral soil.Fractionation and availability of added cadmium with two load levels in three soil environment(acidic,neutral and calcareous soils)were studied.Results show that exchangeable cadmium(EXC-Cd)is about 40-50%,60-80% and 10-20% in acidic,neutral and calcareous soil,respectively,and cadmium wea-ky bound to organic mattcr(WBO),cadmium residue in primary and secondary minerals(RES-Cd)and cadmium bound to carbonate(CARB-Cd)accounted to be 5-20%,10-70% and 10-20%,respectively,Distribution coeffient(DC)of EXC-Cd increased with the level,but that of RES-Cd decreased.Results also show that EXC-Cd were the most active or available form,and then WBO-Cd in Acidic-neutral soil.
【Fund】: 国家自然科学基金
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved