基于GIS的惠州市土壤多环芳烃空间分布特征研究
发布时间：2018-12-09 09:46
【摘要】：为了解惠州市土壤中多环芳烃的空间分布特征,采集了该市不同区县42个不同土地利用类型的表层土壤样品,并结合地理信息系统(GIS)技术分析惠州市土壤多环芳烃的空间分布特征,探清惠州市土壤多环芳烃的残留现状、来源和扩散趋势等,为惠州市土壤多环芳烃的污染治理奠定理论基础。结果表明,土壤中多环芳烃总量介于35.40~534.5μg·kg-1,平均值为123.09μg·kg-1。空间分布分析结果显示,Chr和Bkf具有强烈的空间相关性;Nap、Ace、Acy、Flu、Phe、Ant、Fla、Baa、Daa和Bbf具有中等空间相关性;Pyr、Bap、I1p和Bgp空间相关性很弱。趋势分析显示,16种多环芳烃在东西和南北方向上呈现出明显的增减规律性。Nap和Bkf由东向西、由南向北逐渐升高,而Flu、Pyr、Baa、Bbf、Ipy、Daa则恰好相反;Acy、Ace、Ant均由东向西、由南向北急剧升高,与Phe、Fla的变化趋势恰好相反;Chr和Bap在东西、南北方向没有明显趋势变化;Bgp在东西方向上,由东向西逐渐下降,而在南北方向上,呈明显的倒U形。利用GIS软件地统计模块进行了普通克里格(Ordinary Kriging)插值,结果显示16种多环芳烃组分分布特征各不相同,Ace、Acy和Ant等3种多环芳烃组分含量呈现出自西北向东南方向递增的趋势;Phe、Fla、Pyr、Bkf、Chr、I1p、Daa和Bgp等则恰好相反;Nap、Bbf和Bap等没有明显的分布趋势。Nap最高含量区面积很小,Bap高含量区面积较大,Baa在整个惠州市含量均较低,但在惠城区出现明显的岛状高含量分布区。以上结果反映了不同区域多环芳烃来源的不同,而多环芳烃的来源与当地经济社会发展情况及产业结构关系密切,主要包括工业"三废"、交通废气、石油燃烧和、生活垃圾焚烧等。
[Abstract]:In order to understand the spatial distribution characteristics of polycyclic aromatic hydrocarbons (PAHs) in soil of Huizhou City, 42 topsoil samples of different land use types in Huizhou City were collected. The spatial distribution characteristics of polycyclic aromatic hydrocarbons (PAHs) in soil of Huizhou city were analyzed by (GIS) technology, and the status quo, source and diffusion trend of PAHs in soil were investigated. It lays a theoretical foundation for pollution control of soil polycyclic aromatic hydrocarbons (PAHs) in Huizhou. The results showed that the total amount of PAHs in soil ranged from 35.40 渭 g to 534.5 渭 g kg-1, and the average value was 123.09 渭 g kg-1.. The results of spatial distribution analysis showed that Chr and Bkf had strong spatial correlation, Nap,Ace,Acy,Flu,Phe,Ant,Fla,Baa,Daa and Bbf had moderate spatial correlation, and Pyr,Bap,I1p and Bgp had weak spatial correlation. The trend analysis showed that 16 kinds of PAHs showed obvious regularity of increasing and decreasing in east-south direction. Nap and Bkf increased gradually from east to west, from south to north, but Flu,Pyr,Baa,Bbf,Ipy,Daa was just the opposite. Acy,Ace,Ant increased sharply from east to west and increased sharply from south to north, which was opposite to the change trend of Phe,Fla, while Chr and Bap had no obvious trend in east-west direction. In east-west direction, Bgp gradually decreased from east to west, while in the north and south direction, it was obviously inverted U-shaped. The general Kriging (Ordinary Kriging) interpolation is carried out by using the geostatistics module of GIS software. The results show that the distribution characteristics of 16 kinds of PAHs are different, Ace, is different. The contents of three kinds of PAHs such as Acy and Ant showed an increasing trend from northwest to southeast. Phe,Fla,Pyr,Bkf,Chr,I1p,Daa and Bgp were the opposite. There was no obvious distribution trend of Nap,Bbf and Bap. The area of the highest content of Nap was very small, the area of high content of Bap was larger, and the content of Baa was lower in Huizhou, but there were obvious island areas of high content in Huicheng. The above results reflect the different sources of PAHs in different regions, and the sources of PAHs are closely related to the local economic and social development and industrial structure, mainly including industrial "three wastes", traffic emissions, petroleum combustion and, Incineration of domestic waste, etc.
【作者单位】： 广东省生态环境技术研究所;华南农业大学资源环境学院;珠江流域水土保持监测中心站;
【基金】：国土资源部农业地质与生态地球化学调查项目(基[2005]011-16) 国家重点研究计划973子项目(2002CB410810) 广东省科技计划项目(2010B031800015)
【分类号】：P208;X53
本文编号：2369181
[Abstract]:In order to understand the spatial distribution characteristics of polycyclic aromatic hydrocarbons (PAHs) in soil of Huizhou City, 42 topsoil samples of different land use types in Huizhou City were collected. The spatial distribution characteristics of polycyclic aromatic hydrocarbons (PAHs) in soil of Huizhou city were analyzed by (GIS) technology, and the status quo, source and diffusion trend of PAHs in soil were investigated. It lays a theoretical foundation for pollution control of soil polycyclic aromatic hydrocarbons (PAHs) in Huizhou. The results showed that the total amount of PAHs in soil ranged from 35.40 渭 g to 534.5 渭 g kg-1, and the average value was 123.09 渭 g kg-1.. The results of spatial distribution analysis showed that Chr and Bkf had strong spatial correlation, Nap,Ace,Acy,Flu,Phe,Ant,Fla,Baa,Daa and Bbf had moderate spatial correlation, and Pyr,Bap,I1p and Bgp had weak spatial correlation. The trend analysis showed that 16 kinds of PAHs showed obvious regularity of increasing and decreasing in east-south direction. Nap and Bkf increased gradually from east to west, from south to north, but Flu,Pyr,Baa,Bbf,Ipy,Daa was just the opposite. Acy,Ace,Ant increased sharply from east to west and increased sharply from south to north, which was opposite to the change trend of Phe,Fla, while Chr and Bap had no obvious trend in east-west direction. In east-west direction, Bgp gradually decreased from east to west, while in the north and south direction, it was obviously inverted U-shaped. The general Kriging (Ordinary Kriging) interpolation is carried out by using the geostatistics module of GIS software. The results show that the distribution characteristics of 16 kinds of PAHs are different, Ace, is different. The contents of three kinds of PAHs such as Acy and Ant showed an increasing trend from northwest to southeast. Phe,Fla,Pyr,Bkf,Chr,I1p,Daa and Bgp were the opposite. There was no obvious distribution trend of Nap,Bbf and Bap. The area of the highest content of Nap was very small, the area of high content of Bap was larger, and the content of Baa was lower in Huizhou, but there were obvious island areas of high content in Huicheng. The above results reflect the different sources of PAHs in different regions, and the sources of PAHs are closely related to the local economic and social development and industrial structure, mainly including industrial "three wastes", traffic emissions, petroleum combustion and, Incineration of domestic waste, etc.
【作者单位】： 广东省生态环境技术研究所;华南农业大学资源环境学院;珠江流域水土保持监测中心站;
【基金】：国土资源部农业地质与生态地球化学调查项目(基[2005]011-16) 国家重点研究计划973子项目(2002CB410810) 广东省科技计划项目(2010B031800015)
【分类号】：P208;X53
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1 刘德全，，周展明;土壤中多环芳烃的高效液相色谱测定研究及应用[J];分析试验室;1996年06期
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本文编号：2369181
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