华北农学报Issue(6)：153-158,6.
不同生态型小飞蓬对酸樱桃镉积累及土壤酶活性的影响
Effects of Different Ecotypes of Conyza canadensis on Cd Accumulation of Sour Cherry and Soil Enzyme Activity
摘要
Abstract
To study the effects of different ecotypes of Conyza canadensis on cadmium ( Cd ) accumulation of sour cherry and soil enzyme activity ,the pot experiment was adopted to study the effects of intercropping two eco-types(Mining and non-mining ecotype) of Conyza canadensis and sour cherry on their biomass,Cd content and soil enzyme activity .The results showed that , sour cherry intercropping with mining or non-mining ecotype of Conyza canadensis,the shoot biomass were respectively decreased by 31.92%and 34.62%than the monoculture,the root biomass were respectively decreased by 42 .47%and 33 .33%than the monoculture;the Cd content in shoot were respectively decreased by 35 .42%and 44 .44%than the monoculture ,the Cd content in root respectively decreased 17 .01%and 28 .70%than the monoculture .The soil available Cd content ,soil catalase activity ,soil urease activity were respectively increased than the monoculture in both two kinds of intercropping methods ,but the soil sucrase ac-tivity was decreased .Therefore ,two different ecotypes of Conyza canadensis intercropping with sour cherry ,although lead to the sour cherry growth had been inhibited ,they improved the soil microbial environment to some extent ,and could reduce the Cd absorbed by sour cherry effectively ,and mining ecotype of Conyza canadensis intercropping with sour cherry had a better effect .关键词
酸樱桃/小飞蓬/混种/镉积累/土壤酶活性Key words
Sour cherry/Conyza canadensis/Intercropping/Cd accumulation/Soil enzyme activity分类
农业科技引用本文复制引用
程籍,廖明安,林立金,刘娟,汤福义,罗丽,梅洛银,刘雨..不同生态型小飞蓬对酸樱桃镉积累及土壤酶活性的影响[J].华北农学报,2013,(6):153-158,6.基金项目
国家农业科技成果转化资金项目 （）
