农业环境科学学报2017，Vol.36Issue(10)：2021-2028,8.DOI:10.11654/jaes.2017-0311
砷污染土壤不同比例客土对大豆生长和吸收砷的影响
Effects of different soil dressing ratios on soybean growth and absorption of arsenic in arsenic contaminated soil
摘要
Abstract
A field micro-plot experiment was conducted at the Yueyang experimental station at the Ministry of Agriculture of China to determine the effects of different soil-dressing methods,containing different proportions of soil dressing,on soybean growth and arsenic uptake.The results indicated that mixtures of contaminated soil and virgin soil in different proportions can decrease the soil arsenic content to different degrees.Reduction of the arsenic content of soil was positively correlated with the proportion of soil dressing.In addition,soybean arsenic uptake and accumulation also decreased as the proportion of soil dressing increased.Compared with the control(contaminated soil),soil dressing treatment C (mixing proportion V/V=polluted soil∶clean soil=60∶40) had the highest total aboveground biomass dry weight of soybean stems,leaves,pods,and seeds.Meanwhile,the As content of roots,stems,leaves,pods and seeds were lower than those of the control treatment,by 30.1％,45.3％,39.8％,66.9％,and 82.8％,respectively.Increasing the thickness of the soil dressing also effectively reduced the absorption and accumulation of As in soybean tissues.Correlation analysis showed that As content of soybean tissues with different soil dressing treatments was significantly positively correlated with the soil available As content.These research results provide effective support for soil-dressing remediation of soil contaminated by arsenic and other elements.关键词
客土比例/砷/大豆/污染土/有效砷Key words
soil dressing proportion/arsenic/soybean/contaminated soil/available As分类
资源环境引用本文复制引用
武慧斌,曾希柏,汤月丰,白玲玉,苏世鸣,王亚男,陈鸽..砷污染土壤不同比例客土对大豆生长和吸收砷的影响[J].农业环境科学学报,2017,36(10):2021-2028,8.基金项目
国家自然科学基金项目(41541007)The National Natural Science Foundation of China(41541007) （41541007）
