CAJ | 학술논문

崇明岛土壤重金属含量的空间分布及污染评价
숭명도토양중금속함량적공간분포급오염평개
Distribution of soil heavy metal and pollution evaluation in Chongming Island

万方数据

华东师范大学学报（自然科学版） 화동사범대학학보（자연과학판）
JOURNAL OF EAST CHINA NORMAL UNIVERSITY(NATURAL SCIENCE)
2009年 5期 75-84 ,共10页

周燕%李德志%宋云%李红%柯世朕%王春叶%孙玉冰%李立科%赵鲁青

주연%리덕지%송운%리홍%가세짐%왕춘협%손옥빙%리립과%조로청

崇明岛%土壤重金属%插值分析%污染评价崇明島%土壤重金屬%插值分析%汙染評價
숭명도%토양중금속%삽치분석%오염평개
Chongming island%heavy metal in soil%spatial interpolation%pollution evaluation

以上海市崇明县为研究对象,采用ArcGIS中的地统计分析模块的普通克里格方法进行空间插值作图,并运用单因子污染指数评价法和多因子污染指数评价法对崇明县土壤的重金属污染状况进行评价.结果表明,崇明县土壤重金属污染程度由高到低依次为Cd>Zn>Cu>Cr>Pb.主要重金属污染为镉,平均单项污染指数为1.05,属于轻度污染.所测的土壤重金属污染综合指数为0.22～2.59,平均0.88,污染程度达警戒级,但总体污染状况仍属较清洁(尚清洁样点.占72.39%).
이상해시숭명현위연구대상,채용ArcGIS중적지통계분석모괴적보통극리격방법진행공간삽치작도,병운용단인자오염지수평개법화다인자오염지수평개법대숭명현토양적중금속오염상황진행평개.결과표명,숭명현토양중금속오염정도유고도저의차위Cd>Zn>Cu>Cr>Pb.주요중금속오염위력,평균단항오염지수위1.05,속우경도오염.소측적토양중금속오염종합지수위0.22～2.59,평균0.88,오염정도체경계급,단총체오염상황잉속교청길(상청길양점.점72.39%).
The distribution maps of heavy metals in soils of Chongming county were drawn using Kriging method in the geo-statistic module of ArcGIS,and the degrees of pollution were e-valuated using the single-facter pollution index (SPI) and comprehensive pollution index (CPI). The results showed that the degrees of pollution of heavy metals in soils of Chongming County were Cd>Zn>Cu>Cr>Pb. Among the heavy metals, Cd was the major one. The average SPI of Cd in the soil samples was 1.05, reaching the light degree of pollution. The comprehensive pollution index of 5 heavy metals including all soil samples, ranged from 0. 22 to 2. 59 with an average of 0. 88, reaching the alarm degree of pollution. However, The overall situation of heavy metals in soils were relatively clean, because there were still 72. 39% of soil samples showing the cleanness.