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成都平原土壤Hg和Pb的空间分布及影响因素研究

Keywords: Hg,Pb,空间分析,新复极差法,缓冲区分析

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Abstract:

以土壤有机质层Hg和Pb为研究对象,在ArcGIS9.0平台上运用地统计学、缓冲区分析和叠置分析等方法研究了成都平原核心区域土壤Hg和Pb含量的空间分布特征及其主要的影响因素。结果表明,该区土壤Hg和Pb的含量分别为(0.15±0.13)mg·kg-1和(25.41±9.95)mg·kg-1。土壤Hg的高值区域位于成都市中心城区(0.5~0.8mg·kg-1)和都江堰城区(0.4~0.5mg·kg-1),并以此为中心向四周递减;土壤Pb的高值区位于成都市中心城区、新都和青白江的部分区域(35 ̄46mg·kg-1),并向两侧逐渐减少。影响因素分析表明,不同城区固体垃圾排放量对该区土壤Hg和Pb的含量有一定的影响;样点距中心城区的距离(<4km)与土壤Hg含量关系不显著,而与Pb含量呈显著指数相关关系;方差分析和缓冲区分析表明,土壤Hg和Pb在不同的路段和流域具有显著性差异。

References

[1]  Chen H M,Zheng C R,Sun X H.Effects of different lead compounds on growth and heavy metal uptake of wetland rice[J].Pedosphere,1991,1(3):253-264.
[2]  Andreas.Spatial distribution of soil heavy metal concentrations as indicator of pollution sources at Mount Krizna (Great Fatra,central Slovakia)[J].Plant Nutr Soil Sci,1999,162,421-428.
[3]  邢光熹,朱建国.土壤微量元素和稀土元素化学[M].北京:科学出版社,2003.42-43,45.
[4]  Assadian N W,Vogel C,Sheng Z P,et al.Heavy metal distribution in open canals and drains in the upper Rio Grande Basin[J].Soil and Sediment Contamination,2003,12(3):305-323.
[5]  Kent S M,Daniel T R,Martin M K.Heavy Metals in an Urban Watershed in Southeastern Michigan[J].Journal of Environmental Quality,2004,33(1):163-172.
[6]  He Z L,Zhang M K,Calvert D V,et al.Transport of heavy metals in surface runoff from vegetable and Citrus Fields[J].Soil Science Society of America Journal,2004,68(6):1662-1669.
[7]  Brus D J,Jansen M J W.Uncertainty and sensitivity analysis of spatial predictions of heavy metals in wheat[J].Journal of Environmental Quality,2004,33(3):882-890.
[8]  陈玉成,赵中金,孙彭寿.重庆市土壤-蔬菜系统中重金属的分布特征及其化学调控研究[J].农业环境科学学报,2003,22(1):44-47.
[9]  刘俊华,王文华,彭安.土壤中汞生物有效性的研究[J].农业环境保护,2000,19(4):216-220.
[10]  Walcek C,Santis S D,Gentile T.Preparation of mercury emissions inventory for eastern North America[J].Environmental Pollution,2003,123:3,375-381.
[11]  Brabo E S,Angelica R S,Silva A P,et al.Assessment of mercury levels in soils,waters,bottom sediments and fishes of Acre State in Brazilian Amazon[J].Water,Air and Soil Pollution,2003,147:1-4,61-77.
[12]  Iredale,Susan E,David S.The effect of vehicular traffic on the lead levels of wayside Flora in Glasgow[J].Journal of Biological Education,1993,27(4):283-287.
[13]  Madrid L,Diaz B E,Madrid F.Distribution of heavy metal contents of urban soils in parks of Seville[J].Chemosphere,2002,49:10,1301-1308.
[14]  吴新民,潘根兴.影响城市土壤重金属污染因子的关联度分析[J].土壤学报,2003,40(6):921-928.
[15]  侯景儒,伊镇南,李维明,等.实用地质统计学[M].北京:地质出版社,1998.37-50.
[16]  胡克林,李保国,张凤荣.非平稳型区域土壤汞含量的各种估值方法比较[J].环境科学,2004,25(3):132-137.
[17]  王浒,刘宇.基于遥感和GIS技术城市边缘区用地分布的应用研究[J].测绘科学,2000,25(4):44-47.
[18]  刘小勇,董新光.农业工程水资源管理中GIS区域分析方法的应用[J].农业机械学报,2004,3(4):196-197.
[19]  中国环境监测总站,北京大学,中国科学院沈阳应用生态研究所,等.中国土壤元素背景值[M].北京:中国环境科学出版社,1990.118-130,355-366.

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