土壤2011，Vol.43Issue(1)：89-94,6.
改良剂施用对重金属污染土壤溶液化学性质及豇豆生理特性的影响研究
Amendments on Chemical Characteristics of Soil Solution in Heavy Metal Contaminated Soil and on Physiological Characteristics of Cowpea
摘要
Abstract
The influence of four kinds of amendments on physiological characteristics of cowpea and soil solution heavy metal concentrations at different growth stages were studied with pot experiments. The results showed that four amendments had no significant effect on pH value in soil solution because of soil buffer capacity. Peat and humic acid were more effective than palygorskite and diatomite in decreasing soil solution Zn and Cu concentrations, but no significant difference was found in Pb and Cd among four amendments. Peat, palygorskite, particularly humic acid,increased the activity of SOD and POD in cowpea leaves. The amendments except peat decreased the contents of MDA and proline in the leaves. The effects of amendments on physiological characteristics of cowpea were significantly weakened at the mature stage as a result of leaf senescence.Redundancy analysis indicated the inactivation effects of four amendments were in an order of humic acid ＞peat＞ palygorskite＞ diatomite.关键词
重金属/生理特性/冗余分析Key words
Heavy metal/ Physiological characteristics/ Redundancy analysis分类
资源环境引用本文复制引用
王意锟,郝秀珍,周东美,方升佐,朱强根,张焕朝..改良剂施用对重金属污染土壤溶液化学性质及豇豆生理特性的影响研究[J].土壤,2011,43(1):89-94,6.基金项目
中国科学院知识创新工程重要方向项目(kzcx2-yw-404)、国家自然科学基金项目(30700480)和重大科学研究计划项目(2007CB936604)资助. （kzcx2-yw-404）
