江西农业大学学报
江西農業大學學報
강서농업대학학보
ACTA AGRICULTURAE UNIVERSITATIS JIANGXIENSIS
2014年
5期
1167-1172
,共6页
林世滔%李琳%卢志红%朱美英
林世滔%李琳%盧誌紅%硃美英
림세도%리림%로지홍%주미영
土壤重金属%污染评价%GIS%耕地%江西省
土壤重金屬%汙染評價%GIS%耕地%江西省
토양중금속%오염평개%GIS%경지%강서성
soil heavy metal%pollution assessment%GIS%farmland%Jiangxi Province
为探明江西省耕地土壤重金属污染状况,在全省耕地共采集370个土壤样品,测得重金属Pb、Zn、Cu的含量,运用GIS和地理统计学等技术手段,采用单因子污染指数法和内梅罗综合污染指数法对全省耕地进行系统性评价,然后将污染状况进行空间插值可视化表达。结果表明,江西省耕地土壤重金属Pb、Zn、Cu单因子污染指数平均值分别为0.40、2.23、0.99,但最大值和最小值之间相差较大,整体表明重金属Pb无污染,Cu污染较轻,而Zn污染最为严重。全省耕地土壤Pb、Zn、Cu内梅罗污染综合指数为1.64,综合污染等级为轻度污染。
為探明江西省耕地土壤重金屬汙染狀況,在全省耕地共採集370箇土壤樣品,測得重金屬Pb、Zn、Cu的含量,運用GIS和地理統計學等技術手段,採用單因子汙染指數法和內梅囉綜閤汙染指數法對全省耕地進行繫統性評價,然後將汙染狀況進行空間插值可視化錶達。結果錶明,江西省耕地土壤重金屬Pb、Zn、Cu單因子汙染指數平均值分彆為0.40、2.23、0.99,但最大值和最小值之間相差較大,整體錶明重金屬Pb無汙染,Cu汙染較輕,而Zn汙染最為嚴重。全省耕地土壤Pb、Zn、Cu內梅囉汙染綜閤指數為1.64,綜閤汙染等級為輕度汙染。
위탐명강서성경지토양중금속오염상황,재전성경지공채집370개토양양품,측득중금속Pb、Zn、Cu적함량,운용GIS화지리통계학등기술수단,채용단인자오염지수법화내매라종합오염지수법대전성경지진행계통성평개,연후장오염상황진행공간삽치가시화표체。결과표명,강서성경지토양중금속Pb、Zn、Cu단인자오염지수평균치분별위0.40、2.23、0.99,단최대치화최소치지간상차교대,정체표명중금속Pb무오염,Cu오염교경,이Zn오염최위엄중。전성경지토양Pb、Zn、Cu내매라오염종합지수위1.64,종합오염등급위경도오염。
In order to understand the contamination status of heavy metals pollution of farmland soil in Jiangxi Province,370 soil samples were collected and the contents of heavy metals Pb,Zn,Cu in these samples were measured.Based on GIS and geostatistical methods,the soils in Jiangxi Province were evaluated with sin-gle factor pollution index and nemerow comprehensive pollution index,and the pollution status in the farmland of Jiangxi Province were expressed by spatial interpolation visualization.The results showed that in Jiangxi Province the average values of the single factor pollution index of soil heavy metals Pb,Zn,Cu were 0.4,2.23, 0.99,but there was a big difference between the maximum and minimum values.Overall,the soils had non-pol-lution of Ph,light pollution of Cu,and severe pollution of Zn.The nemerow comprehensive pollution index of Pb,Cu and Zn of the soils was 1.64,the soils of farmland in Jiangxi Province had light heavy metal contamina-tion.