干旱地区农业研究2011，Vol.29Issue(4)：105-108,4.
土壤中添加蚯蚓及秸秆对油菜积累镉的影响
Effects of adding earthworms and straw into soil on cadmium accumulation in rape
摘要
Abstract
In pot experiments , earthworms and fresh straw were added into gray desert soil with different concentra- tions of Cd pollution to study the rape (Brassica rapa L . Spp . Chinenesis ) Cd accumulation in the soil system under two treatments : earthworm and straw additions . The results showed that : (1) Under different conditions of soil Cd~pollution , the addition of earthworms can effectively promote Cd in the soil to transfer into rape ; earthworms can survive in the Cd~~ contaminated soil, while with the increase of Cd in the environment , Cd concentration in earthworm bodies increase too . (2 ) In the rape~soil system , addition of different proportions of straw into soil can promote Cd to transfer into rape bodies and rhizosphere soil, and the promotion effects are soil:straw = 1: 1> soil: straw = 2: 1> soil: straw = 1: 0 ; in the soil with same Cd concentration , Cd content in rape>Cd content in rhizosphere soil>Cd content in soil, which indicates that application of straw can effectively promote the accumulation of Cd in rape .关键词
蚯蚓/秸秆/镉/油菜/植物修复Key words
earthworm/straw/Cadmium/rape/phytoremediation分类
农业科技引用本文复制引用
朱新萍,郑春霞,贾宏涛,李辉信..土壤中添加蚯蚓及秸秆对油菜积累镉的影响[J].干旱地区农业研究,2011,29(4):105-108,4.基金项目
国家自然基金项目(40901155) （40901155）
新疆自治区高校科学研究计划项目(XJEDU2009117) （XJEDU2009117）
新疆高校青年启动基金(XJEDU2007S16) （XJEDU2007S16）
教育部重点项目(209139) （209139）
土壤学新疆自治区重点学科 （）
草业科学国家重点学科资助 （）
