土壤重金屬污染 附英文翻譯

1、土壤重金屬污染對(duì)農(nóng)產(chǎn)品的影響以湘江中下游為例2011-11-29 10:44:25|分類：環(huán)境|標(biāo)簽：|字號(hào)大中小訂閱環(huán)境學(xué)刊 2008年1期 湘江中下游農(nóng)田土壤和蔬菜的重金屬污染 HYPERLINK /Periodical_dlxb200801001.aspx /Periodical_dlxb200801001.aspx湘江中下游農(nóng)田土壤和蔬菜的重金屬污染Heavy Metal Pollution of Soils and Vegetables from Midstream and Downstream of Xiangjiang River摘要:從湖南省湘江中下游衡陽(yáng)-長(zhǎng)沙段沿岸采集219

2、個(gè)農(nóng)田土壤樣品和48個(gè)蔬菜樣品，測(cè)試其中As、Cd. Cr、Cu、Ni、Pb、Zn等7種重金屬元素的含量，并結(jié)合GIS作圖與數(shù)據(jù)統(tǒng)計(jì),對(duì)農(nóng)田土壤中重金屬空間分 布、土壤和蔬菜中重金屬富集特征以及其潛在風(fēng)險(xiǎn)進(jìn)行分析.結(jié)果表明，農(nóng)田土壤中As、Cd、Cu、Ni、Pb 和Zn含量均大于湖南省相應(yīng)土壤重金屬含量背景值,Cd(2.44 mg kg-1)、Pb(65.00 mg kg-1)、Zn(144.13 mg kg-1)含量分別超標(biāo)7.97、3.69和1.63倍.與我國(guó)土壤環(huán)境質(zhì)量標(biāo)準(zhǔn)(GB15618-1995沖II級(jí)標(biāo)準(zhǔn) (pH 6.57.5)比較，土壤 As、Cd、Cu、Ni、Pb 和 Zn 含

3、量的超標(biāo)率分別為 13.2%、68.5%、2.7%、2.7%、 8.7%和15.1%,表現(xiàn)為以Cd為主的多種重金屬混合污染.菜地土壤中As、Cd、Cu、Pb和Zn的含量(幾 何均值)分別高于水稻土 As、Cd、Cu、Pb和Zn含量.與食品中污染物限量(GB2762-2005)等標(biāo)準(zhǔn)比 較，蔬菜As、Cd、Ni、Pb含量的樣本超標(biāo)率分別為95.8%、68.8%、10.4%和95.8%;蔬菜Cd、Pb、Zn 含量與相應(yīng)土壤的Cd、Pb、Zn含量存在極顯著的相關(guān)性(PV0.01).湘江中下游的農(nóng)田土壤和蔬菜中重金 屬污染的潛在風(fēng)險(xiǎn)值得關(guān)注.作者：郭朝暉1肖細(xì)元2陳同斌2廖曉勇2宋杰1武斌2Autho

4、r： GUO Zhaohui1XIAO Xiyuan2CHEN Tongbin2LIAO Xiaoyong2SONG Jie1WU Bin2作者單位：中南大學(xué)冶金科學(xué)與工程學(xué)院環(huán)境工程研究所，長(zhǎng)沙,410083中國(guó)科學(xué)院地理科學(xué)與資源研究所環(huán)境修復(fù)中心，北京,100101期刊：地理學(xué)報(bào) ISTICPKUJournal： ACTA GEOGRAPHICA SINICA年，卷(期)：2008, 63分類號(hào)：X5關(guān)鍵詞：湘江中下游農(nóng)田土壤蔬菜重金屬污染機(jī)標(biāo)分類號(hào)：P59 X13機(jī)標(biāo)關(guān)鍵詞：湘江中下游農(nóng)田土壤蔬菜重金屬污染土壤重金屬含量土壤環(huán)境質(zhì)量標(biāo)準(zhǔn)土壤 中重金屬湖南省超標(biāo)率重金屬元素土壤樣品數(shù)據(jù)統(tǒng)

5、計(jì)空間分布幾何均值混 合污染富集特征風(fēng)險(xiǎn)值菜地土壤標(biāo)準(zhǔn)比較 基金項(xiàng)目：國(guó)家自然科學(xué)基金，國(guó)家自然科學(xué)基金Journal of Geographical Sciences2008 年 03 期土壤重金屬污染對(duì)農(nóng)產(chǎn)品的影響以湘江中下游為例(英文) HYPERLINK /Article/CJFDTotal-ZGDE200803009.htm /Article/CJFDTotal-ZGDE200803009.htm王莉霞郭朝暉肖細(xì)元陳同斌廖曉勇宋杰武斌【摘要】：A total of 219 agricultural soil and 48 vegetable samples were collecte

6、d from the midstream and downstream of the Xiangjiang River(the Hengyang-Changsha section)in Hunan Province.The accumulation characteristics,spatial distribution and potential risk of heavy metals in the agricultural soils and vegetables were depicted.There are higher accumulations of heavy metals s

7、uch as As,Cd,Cu,Ni,Pb and Zn in agricultural soils,and the contents of Cd(2.44 mg kg -1 ),Pb(65.00 mg kg -1 )and Zn(144.13 mg kg -1 )are 7.97,3.69 and 1.63 times the corresponding background contents in soils of Hunan Province,respectively. 13.2%of As,68.5%of Cd,2.7%of Cu,2.7%of Ni,8.7%of Pb and 15.

8、1%of Zn in soil samples from the investigated sites exceeded the maximum allowable heavy metal contents in the China Environmental Quality Standard for Soils(GB15618-1995,Grade II).The pollution characteristics of multi-metals in soils are mainly due to Cd.The contents of As,Cd,Cu,Pb and Zn in veget

9、able soils are significantly higher than the contents in paddy soils.95.8%, 68.8%,10.4%and 95.8%of vegetable samples exceeded the Maximum Levels of Contaminants in Foods(GB2762-2005)for As,Cd,Ni and Pb concentrations,respectively.There are significantly positive correlations between the concentratio

10、ns of Cd,Pb and Zn in vegetables and the concentrations in the corresponding vegetable soils(p0.01).It is very necessary to focus on the potential risk of heavy metals for food safety and human health in agricultural soils and vegetables in the midstream and downstream of the Xiangjiang River,Hunan

11、Province of China.【作者單位】：Center【關(guān)鍵詞】：農(nóng)田土壤重金屬污染中下游湘江蔬菜【基金】：National Natural Science Foundation of China,No.20507022【分類號(hào)】：X53【正文快照】： 1 Introduction Heavy metal pollution in agriculture soils is of great concern and leads tothe functional dis- order of soil,interference with crop growth,and even impair

12、ed human health through acontaminated food chain.In recent years,studies on heavy m湘江中下游農(nóng)田土壤和蔬菜的重金屬污染 HYPERLINK /topic-1969365-1-1.html /topic-1969365-1-1.html桑塔格發(fā)表在株洲論壇華聲論壇 HYPERLINK /forum-245-1.html /forum-245-1.html發(fā)表時(shí)間：2009-6-24 15:13除非有本事你空運(yùn)蔬菜，水，多么的觸目驚心，為便于理解，我已經(jīng)把元素符號(hào)，用漢字代替。在遠(yuǎn)離城市和冶煉活動(dòng)的湘江衡陽(yáng)至株洲段

13、的湘江沿岸中段區(qū)域，農(nóng)田土壤中鎘 含量污染基本上保 持在一個(gè)輕度污染水平。在株洲至長(zhǎng)沙段，由于長(zhǎng)株潭地區(qū)工農(nóng)業(yè)生產(chǎn)、礦冶活動(dòng)等人類活動(dòng)的劇烈影響, 農(nóng)田土壤中鎘、銅、鉛和鋅 含量空間分布呈現(xiàn)出明顯的富集特征。鎘、銘、鉛、鋅含量隨湘江水流方向 呈總體升高趨勢(shì)。湘江中下游農(nóng)田土壤中鎘 污染嚴(yán)重，在衡陽(yáng)水口山地區(qū)與株洲清水塘地區(qū)存在明顯的點(diǎn)源污染特征， 表明與該地區(qū)的大型有色金屬采選冶活動(dòng)密切相關(guān)；隨與污染源距離增加，污染程度呈扇形遞減，在約10 km左右的污染范圍內(nèi)污染程度基本都在10 mg kg-1以上。湘江中下游農(nóng)田土壤中鉛和鋅含量的空間分 布污染特征與鎘非常相似，尤其是在衡陽(yáng)水口山地區(qū)與株洲

14、清水塘地區(qū)鉛和鋅為重污染。在長(zhǎng)沙、株洲 和湘潭三市農(nóng)田土壤中鎘、鉛和鋅污染程度相對(duì)較高，城市群周邊地區(qū)農(nóng)田。湘江中下游農(nóng)田土壤中銅含量空間分布也呈明顯的點(diǎn)狀特征，在湘潭和株洲地區(qū)污染程度較高，而且 污染程度已經(jīng)接近或超過了我國(guó)土壤環(huán)境質(zhì)量標(biāo)準(zhǔn)(GB15618-1995)中II級(jí)標(biāo)準(zhǔn)中銅 含量標(biāo)準(zhǔn)100 mg /kg-1,農(nóng)田土壤中銅 污染值得關(guān)注。湘江中下游農(nóng)田土壤中神、銘和鎳 分布隨水流方向呈增加趨勢(shì)，空間濃度基本上在 3040 mg /kg-1、40100 mg kg-1 和 3045 mg kg-1 之間。農(nóng)田土壤中神含量比我國(guó)土壤環(huán)境質(zhì)量標(biāo)準(zhǔn)(GB15618-1995)中II級(jí)標(biāo)準(zhǔn)20 mg kg-1要高，存在 中輕度污染；銘 和鎳 含量分別比我國(guó)土壤環(huán)境質(zhì)量標(biāo)準(zhǔn)(GB15618-1995)中II級(jí)標(biāo)準(zhǔn)300 mg kg-1和 50 mg kg-1要低，鎳 和銘 污染不明顯。株洲市農(nóng)田土壤中鎘、鉛、鋅含量(幾