本文選題：水稻田　切入點(diǎn)：土壤重金屬　出處：《環(huán)境科學(xué)學(xué)報(bào)》2017年04期 　論文類型：期刊論文

【摘要】：以2013—2014年南方湖南、江西、浙江、福建四省集中連片水稻田的63個(gè)采樣數(shù)據(jù)為基礎(chǔ),利用單因子評(píng)價(jià)法和內(nèi)梅羅指數(shù)評(píng)估南方水稻田土壤重金屬的污染情況.結(jié)果表明:南方集中連片水稻田土壤Cd點(diǎn)位超標(biāo)率為0;Hg、As和Ni 3種重金屬含量超出《土壤環(huán)境質(zhì)量標(biāo)準(zhǔn)》(GB15618-1995)二級(jí)標(biāo)準(zhǔn)的比例最大,分別為6.3%、4.8%和7.9%;研究區(qū)水稻田土壤重金屬以清潔為主,70%以上符合農(nóng)業(yè)生產(chǎn)和生活要求,但少量樣點(diǎn)Hg為中度和輕度污染,As和Ni為輕度污染;從內(nèi)梅羅綜合指數(shù)看,研究區(qū)土壤重金屬僅有3.18%和1.59%的為輕度污染和中度污染,主要分布在湖南和江西.
[Abstract]:Based on 63 samples collected from four provinces of southern Hunan, Jiangxi, Zhejiang and Fujian in 2013-2014, The single factor evaluation method and Nemero index were used to evaluate the contamination of heavy metals in paddy soil of southern China. The results showed that the exceeding rate of CD in the soil of southern concentrated continuous paddy field was 0 ~ (10) H _ (g) as and Ni _ (3) over < soil]. Environmental quality standard (GB15618-1995) the proportion of the second class standard is the largest, More than 70% of the heavy metals in paddy soils in the study area met the requirements of agricultural production and living, but a small amount of Hg was moderately and mildly polluted, and as and Ni were slightly polluted. Only 3.18% and 1.59% of the heavy metals in the soil of the study area were mildly and moderately polluted, mainly distributed in Hunan and Jiangxi provinces.
【作者單位】： 中國(guó)科學(xué)院地理科學(xué)與資源研究所陸地表層格局與模擬重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院大學(xué);中國(guó)科學(xué)院地理科學(xué)與資源研究所資源與環(huán)境信息系統(tǒng)國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家科技支撐計(jì)劃項(xiàng)目(No.2014BAC15B03) 中國(guó)工程院咨詢研究項(xiàng)目(No.2016-ZD-10-02)~~
【分類號(hào)】：X53

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

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2 蘇全龍;周生路;易昊e，

本文編號(hào)：1590601