太湖地区水稻土的健康质量问题及调控对策

应用生态学报 ›› 2002, Vol. ›› Issue (2): 199-203.

太湖地区水稻土的健康质量问题及调控对策

王校常, 曹志洪

中国科学院南京土壤研究所, 南京 210008

收稿日期:2001-07-19 修回日期:2001-08-27 出版日期:2002-02-15
通讯作者: 王校常,男,1964年生,博士,副研究员.主要从事植物营养及环境生物学研究,发表论文近30余篇.E-mail:xcwang@issas.ac.cn
基金资助:
国家基础研究重点发展规划项目(G1999011808);江苏省自然科学基金重点项目(BK99196);中国科学院土壤圈物质循环开放实验室基金项目资助

Health-quality problems of paddy soil in the Taihu region

WANG Xiaochang, CAO Zhihong

Institute of Soil Science, Chinese Academy of Sciences.Nanjing 210008

Received:2001-07-19 Revised:2001-08-27 Online:2002-02-15

摘要/Abstract

摘要： 从可持续生产安全、营养农产品角度,比较系统地阐述了土壤健康质量的概念和内涵.同时根据土壤健康质量的概念,对太湖地区13个省市级水稻丰产示范方及其灌溉河流淤泥进行了调查.结果表明,太湖地区水稻土N、P含量相对较高,但引起面源污染的可能性较小,同样水稻土中的重金属含量基本上在环境背景值范围内,但点源污染不可忽视.DDT和六六六的残留也在标准允许范围内,生命有益元素Se处于相对缺乏程度.然而,由于乡镇企业的发展,三废的肆意排放,灌溉河流的富营养化及重金属污染极为严重.部分河流淤泥中重金属Cu和Zn的含量分别高达5.4和7.2mg·kg^-1.针对上述情况及发展趋势,提出了一些相应的主要控制措施.

关键词: 土壤健康质量, 太湖地区, 水稻土, 农产品品质

Abstract: The concept of soil health quality was discussed from the angle of sustainable and safe agricultural production and nutritive agricultural products.Based on the data of 13 higher-yield rice-farms and its corresponding irrigated rivers in the Taihu region,problems of halth quality occurred in paddy soil were discussed.Owing to the high application of inorganic fertilizers in those farms,high available Pand Nwere observed in paddy soil and river sediments.The contents of heavy metals such as Pb,Cu,Ni and Co in paddy soil were still at the level of background values.However,it was found that some rivers were seriously polluted by Cu,Zn and Pb.Several cases of point-source pollution of heavy metal were found in paddy soil in the region.The contents of DDTand HCHin soils and river sediments were lower than their maximum allowable concentrations.The results of lower selenium content in agricultural product owing to lower content in paddy soil indicted that the Taihu region is a selenium-deficient area.

Key words: Soil health quality, Taihu region, Paddy soil, Quality of agricultural product

中图分类号:

X171.1

王校常, 曹志洪. 太湖地区水稻土的健康质量问题及调控对策[J]. 应用生态学报, 2002, (2): 199-203.

WANG Xiaochang, CAO Zhihong . Health-quality problems of paddy soil in the Taihu region[J]. Chinese Journal of Applied Ecology, 2002, (2): 199-203.

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