引用本文:曾希柏,徐建明,黄巧云,唐世荣,李永涛,李芳柏,周东美,武志杰.中国农田重金属问题的若干思考[J].土壤学报,2013,50(1):186-194.
Zeng Xibai,Xu Jianming,Huang Qiaoyun,Tang Shirong,Li Yongtao,Li Fangbai,Zhou Dongmei,Wu Zhijie.Some deliberations on the issues of heavy metals in farmlands of China[J].Acta Pedologica Sinica,2013,50(1):186-194
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中国农田重金属问题的若干思考
曾希柏1, 徐建明2, 黄巧云3, 唐世荣4, 李永涛5, 李芳柏6, 周东美7, 武志杰8
1.中国农业科学院农业环境与可持续发展研究所;2.浙江大学环境与资源学院;3.华中农业大学资源与环境学院;4.农业部天津环境保护科研监测所;5.华南农业大学资源环境学院;6.广东省生态环境与土壤研究所;7.中国科学院南京土壤研究所;8.中国科学院沈阳应用生态研究所
摘要:
在对我国若干典型区域调研及资料分析的基础上,作出了当前我国耕地重金属“主产区基本安全,重点区域风险较大”的基本判断,提出了针对农田土壤采用“重金属含量超标”替代“重金属污染”的观点,指出我国农业主产区农田重金属存在明显的累积趋势。同时,在对我国土壤重金属钝化和活化、植物吸收和阻控、微生物转化和利用等研究成果进行总结和借鉴基础上,提出了强化重金属超标农田安全利用、重金属含量阈值制订、重金属污染源头和过程阻控、超标农田修复以及产地环境安全保障体系等系列建议。
关键词:  农田  重金属  超标  风险
DOI:10.11766/trxb201206300263
分类号:
基金项目:国家“十二五”科技支撑计划(2012BAD14B02,2012BAD05B06)和农业部行业专项(201203045)的部分内容
Some deliberations on the issues of heavy metals in farmlands of China
Zeng Xibai1, Xu Jianming2, Huang Qiaoyun3, Tang Shirong4, Li Yongtao5, Li Fangbai6, Zhou Dongmei7, Wu Zhijie8
1.Institute of Environment and Sustainable Development in Agriculture,CAAS;2.College of Environmental and Resource Sciences, Zhejiang University, Hangzhou;3.College of Resources and Environment,Huazhong Agricultural University;4.Agro-Environmental Protection Institute, Ministry of Agriculture;5.College of Resources and Environment, South China Agricultural University;6.Guangdong Institute of Eco-Environmental and Soil Sciences;7.Institute of Soil Sciences, CAS, Nanjing;8.Institute of Applied Ecology, CAS, Shenyang
Abstract:
On the basis of the site-specific survey and data analyses, we got a viewpoint that the heavy metal contents in the main agricultural regions of China were acceptable and safe, except some specific regions with high risk of heavy metal pollution. Although the heavy metal contents in most farmlands are just “overproof” rather than “polluted”, there is a significant tendency towards the accumulation of heavy metals in farmlands. Meanwhile, based on the summary of publications on soil heavy metals in China such as immobilization and mobilization, plant uptake and barrier, and microbial transformation and utilization of soil heavy metals, some suggestions were proposed on safe utilization of farmlands with high content of heavy metals, establishment of heavy metal thresholds, control and remediation of heavy metal pollution, safely controlling strategies for producing fields, and so on.
Key words:  Farmlands  Heavy metals  Overproof  Risk