生态与农村环境学报Issue(6)：768-773,6.
皇竹草对土壤阿特拉津的降解特性
Effect of Pennisetum hydridum Degrading Atrazine in Soil
摘要
Abstract
A pot experiment was carried out in order to understand effects of Pennisetum hydridum on atrazine degrada⁃tion, dynamics of the degradation and translocation of the substance, and relationships between concentration of atrazine residue and activities of relevant soil enzymes in the soil. Results show that atrazine degradation rate significantly increased in pots planted with P. hydridum by 52�84 percentage points in non⁃sterilized pots and by 42�38 percentage points in steri⁃lized pots. The half⁃life of soil atrazine in sterilized and non⁃sterilized pots planted with P. hydridum was significantly shortened, by 64�35 and 53�21 days, respectively. Atrazine in soil was absorbed by P. hydridum, and then gradually transferred from roots to shoots. With the plants growing on and on, transfer coefficient of the substance increased. Signifi⁃cant negative relationships were observed between concentration of atrazine residue in the soil and activities of soil catalase, peroxidase, invertase and polyphenol oxidase. All these findings indicate that planting P. hydridum is conducive to degradation of atrazine in the soil.关键词
阿特拉津/皇竹草/植物降解/降解率/土壤酶Key words
atrazine/Pennisetum hydridum/phytodegradation/degradation rate/soil enzyme分类
资源环境引用本文复制引用
陈建军,张坤,李明锐,李元..皇竹草对土壤阿特拉津的降解特性[J].生态与农村环境学报,2014,(6):768-773,6.基金项目
云南省自然科学基金 （）
