摘要
１９９０—１９９５年中国科学院生态网站联网研究中，在４个生态站对重金属复合污染（Ｃｄ、Ｐｂ、Ｃｕ、Ｚｎ、Ａｓ）进行了田间迁移动态实验研究，表明３年来表土中重金属元素含量缓慢下降，输出量最大支出项目为从表层向下迁移量可比作物地上部分带去量高出几十至数百倍，为污染土壤防治工作中淋洗技术运用指出了应用前景．
Using lysemeter equipment, dynamic migration of a number of heavy metals in agricultural ecosystem in four ecological stations were studied from 1990 to 1995. The results showed that the total content of heavy metals in surface soil decreased gradually. The largest fraction of export was the migrated from topsoil to subsoil or deeper horizen. The amounts was 1—2 order of magnitude higher than that in harvested crops, suggesting that soil washing technique will be a potential option for soil redemption.
出处
《环境科学学报》
CAS
CSSCI
CSCD
北大核心
1998年第4期407-412,共6页
Acta Scientiae Circumstantiae
基金
中科院"八五"重大基础项目
国家自然科学基金
