| 海南省农产品产地灌溉水环境质量评价 |
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| 引用本文： | 张永发,邝继云,谢茵,等.海南省农产品产地灌溉水环境质量评价[J].广东农业科学,2015,42(14):149-154. |
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| 作者姓名： | 张永发 邝继云 谢茵 等 |
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| 作者单位： | 1. 中国热带农业科学院橡胶研究所,海南儋州,571737
2. 海南省农村环保能源站,海南海口,571100 |
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| 摘 要： | 采用单项质量指数与综合质量指数相结合的方法,对海南省农产品产地灌溉水进行了重金属Cd、Hg、As、Pb、Cr、Cu、Zn和Ni含量的抽样调查分析与评价.结果表明,海南省农产品产地灌溉水重金属的平均含量均低于《HJ 332-2006食用农产品产地环境质量评价标准》规定的限值,灌溉水重金属的单项质量指数均≤0.5,综合质量指数为0.17,灌溉水环境质量均为1级,属于清洁水平,适宜发展无公害农产品.同时发现,部分产地的灌溉水中重金属含量有超标现象,三亚、琼海个别样品Hg超标,东方个别样品Ni超标.重金属含量之间多呈正相关关系,其中Cd与Pb之间的相关性达到了极显著水平,As与Ni之间的相关性达到了显著水平.
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| 关 键 词： | 灌溉水 重金属 环境质量 评价 |
Environmental quality evaluation of irrigation
water in Hainan agro-producing areas |
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| ZHANG Yong-fa,KUANG Ji-yun,XIE Yin,WANG Wen-bin,WANG Da-peng,LUO Xue-hua,WU Xiao-ping.Environmental quality evaluation of irrigation
water in Hainan agro-producing areas[J].Guangdong Agricultural Sciences,2015,42(14):149-154. |
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| Authors: | ZHANG Yong-fa KUANG Ji-yun XIE Yin WANG Wen-bin WANG Da-peng LUO Xue-hua WU Xiao-ping |
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| Abstract: | The heavy metals contents of irrigation water, including Cd, Hg, As, Pb, Cr, Cu, Zn and Ni, in the
agro-producing areas of Hainan Province were investigated by random sampling. Environmental quality conditions of
the heavy metals were evaluated by methods of single quality index and complex quality index. Results showed that
the average contents of metals were all under the limiting values prescribed by "HJ 3322006 Farmland
environmental quality evaluation standards for edible agricultural products". Single quality indices of the eight
elements were all lower than or equal to 0.5, and complex quality index of the eight elements was 0.17. Irrigation
water environmental quality in the three study places (Sanya, Qionghai, Dongfang) were all set at the first class
belonging to clean level, being fit for planting non-pollution agricultural products. However, the contents of heavy
metals in some areas were beyond the limiting values, such as the contents of Hg from individual Sanya and Qionghai
samples, the contents of Ni from individual Dongfang samples. For most heavy metals, they were positively correlated
with one another in contents. For instance, there was a very significant correlation between the content of Cd and the
content of Pb, there was a significant correlation between the content of As and the content of Ni. |
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| Keywords: | irrigation water heavy metal environmental quality evaluation |
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