农业环境科学学报2017，Vol.36Issue(2)：257-263,7.DOI:10.11654/jaes.2016-0986
长期施肥对土壤重金属积累和有效性的影响
Effects of long-term fertilization on the accumulation and availability of heavy metals in soil
摘要
Abstract
In this study,the accumulation and availability of copper(Cu),zinc (Zn),lead (Pb) and cadmium(Cd) in the paddy soils and upland red soils from a long-term fertilization experimental station were analyzed systematically.The purpose of this study was to provide reliable and useful information for heavy metal pollution in agricultural soils under routine agricultural management.According to the present results,the concentration range of Cu,Zn and Pb in red paddy soil of different fertilizer treatments did not exceed the secondary value of Chinese soil environmental quality standards,while the range of Cd level in different fertilization treatments ranged from 0.49 to 1.04 mg· kg-1,all of which were over the secondary value.In the upland soil,Cu(34.6～88.3 mg· kg-1),Zn (79.4～173.7 ng· kg-1) and Pb (56.7～81.1 mg· kg-1) concentrations were determined,Cu concentrations in the organic fertilizer treatment higher than the secondary value.Cd concentrations ranged from 0.14 to 1.35 mg ·kg-1,exceeding standard rate was 42.9％.Cd bioavailability in the upland soil with pig manure was (33.8％) higher than that in the pig-manure amended paddy soil(23.9％),while the highest Cd bioavailability was determined in the upland soil with chemical fertilizers(NP 14.8％).Taken together,long-term application of chemical fertilizer and straw incorporation had no obvious effect on the accumulation of heavy metals in paddy and upland soils,and decreased Cd bioavailability was attained with Ca fertilization.However,significant Cd accumulation and a higher Cd bioavailability has occurred as a result of the incorporation of pig manure into soils.关键词
长期施肥/红壤/重金属积累/有效态Key words
long-term fertilization/red paddy/accumulation of heavy metals/availability分类
资源环境引用本文复制引用
王腾飞,谭长银,曹雪莹,欧阳达,聂军,王伯仁,何其辉,梁玉峰..长期施肥对土壤重金属积累和有效性的影响[J].农业环境科学学报,2017,36(2):257-263,7.基金项目
国家科技支撑计划课题(2015BAD05B02) （2015BAD05B02）
农业部财政部农办财函[2016]6号 （）
洞庭湖沉积物重金属污染环境效应(湖南省高校科技创新团队支持计划,2014) （湖南省高校科技创新团队支持计划,2014）
湖南师范大学环境重金属污染机理及生态修复重点实验室 （）
The National Key Technology Research and Development Program of the Ministry of Science and Technology of China (2015BAD05B02) （2015BAD05B02）
Ministry of Agriculture,Ministry of Finance Choi letter office [2016]6 （）
Aid Program for Science and Technology Innovative Research Team in High Educational Instituions of Hunan Province [2014] （）
Key Laboratory of Environmental Heavy-Metal Contamination and Ecological Remediation （）
