摘要
用根际箱及根际袋试验研究了红壤、黄棕壤植麦和植稻后根际中铅、镉的提取情况 ,并比较了单元素存在与复合处理存在的差异 .结果表明 ,土壤中可提取态铅、镉的状况在根际微生态系统中明显不同于本土 ,而两类土壤又有差异 .不论小麦还是水稻 ,红壤根际可提取性铅大于非根际 ;镉则有些不同 ,红壤小麦根际现象不显著 ,水稻根际与非根际差异很大 。
The present paper deals with the chemical behavior of Pb, Cd and their interaction in rhizosphere and bulk after growing plants (rice or wheat) using a rhizobox or rhizobag The main results were as follows: The contents of Pb extractable in both rice and wheat rhizosphere of the red soils, were higher than those in the bulk soils, which demonstrated the Pb was activated in rhizosphere due to the activity of roots and the action of microorganisms on the root surface and in the rhizosphere The content of Cd extractable in the rice rhizosphere of the two soils, however were lower than those in the bulk soils, probably due to large amount of Cd in rhizosphere which was absorbed by rice plants [WT5”HZ]
出处
《浙江大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2000年第5期527-532,共6页
Journal of Zhejiang University:Agriculture and Life Sciences
基金
国家自然科学基金资助项目! (2 97770 2 0 )
浙江省自然科学基金资助项目 !(2 970 32 )
