贵溪县工业废水污染农田的典型调查与分析

THE INVESTIGATION AND ANALYSIS OF INDUSTRIAL WASTE WATER POLLUTION TO FARMLAND IN GUIXI COUNTY

本文根据水泉村农田环境调查和土壤、水稻植株各器官中镉、铜、锌、铅、砷等重金属元素含量的测定结果,指出了工业废水灌溉农田会使农田受污染.同时还指出了污染的水稻植株不同器官中镉、铜、锌、铅、砷等元素含量都表现为:根系>茎叶>稻谷的分布规律,以及农田污染后会导致水稻结实率降低、千粒重减少、空秕粒增加.本文还提出大型冶炼厂在一定时间内对周围环境质量状况进行全面的回顾性评价的必要性,对已污染的农田要积极开展科学研究,采取措施进行综合治理。

This paper deals with the environmental conditions and the heavy metal element con-tents including Cr.Cu.Zn.Pb and As in soils and organs of rice plant in Shuiquan village,Guixi county,Jiangxi Province.It is pointed out in this paper that the soils and rice plant result polluted when the ricefields are irrigated with industrial waste water,and the contents of Cr.Cu.Zn.Pb.As accu-mulated in different organs of the rice plant show as following:those in roots>those instems and those in leaves>those in seeds.Meanwhile,a decline in filled-grain percentageand 1000-grain weight,and anincreas in unfilled-grain percentage are found in the Pollutedpaddy fields.In addition this paper proposes that it is necessary to study and evaluate theenvironmental conditions around the large smeltery at regular intervals,and take multiple steps to treat the polluted paddy fields.