出生缺陷高发区土壤微量元素含量特征的空间信息分析  

Spatial information analysis of characteristics of soil trace element contents in high incidence areas of birth defects.

作　　者：张卓栋[1] 张科利[1] 武继磊[2] 张霆[3] 郑晓瑛[2] 

机构地区：[1]北京师范大学地理学与遥感科学学院,北京100875 [2]北京大学人口研究所,北京100871 [3]首都儿科研究所,北京100020

出　　处：《浙江大学学报（农业与生命科学版）》2008年第6期684-691,共8页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：国家重点基础研究发展计划资助项目(2001CB510305)

摘　　要：从土壤元素含量分布与出生缺陷发生率高低的相关性入手,探讨出生缺陷高发区土壤元素含量的异常特征,为筛选诱发出生缺陷的敏感因子提供科学依据和新的途径.选取出生缺陷高发的山西省中阳和交口两县为研究区,根据流行病调查路线和村镇,逐村采集土壤样品,分析测定土壤样品中Al、As、Ca、Cu、Fe、K、Mg、Mo、Na、Ni、Pb、Se、Sn、Sr、V、Zn等16种元素含量.运用ArcGIS 9.0软件,绘制研究区内96个采样点的出生缺陷发生率和土壤中16种元素含量分布的专题图,并进行Kriging插值和叠加分析.结果显示,出生缺陷发生率高低的空间变异趋势与土壤元素含量分布趋势具有一定的相似性.其中元素V、Se、Mo、As、Mg、Na含量与出生缺陷发生率变化的空间相关性较大.土壤中V、Se的低含量和Mo、As的高含量可能是造成出生缺陷高发的原因.说明土壤元素含量异常与出生缺陷发生率之间存在相关关系.Based on the correlation analysis between the distribution of soil element contents and birth defects, to study the anomaly characteristics of soil elements in high incidence areas of birth defects, and provide scientific basis and new approach for the screening of sensitive factors that induce birth defects, two counties Zhongyang and Jiaokou of Shanxi Province were selected as research area, according to the investigation route and villages of epidemic, soil samples were collected in every village, the contents of 16 kinds of elements in the soil, Al, As, Ca, Cu, Fe, K, Mg, Mo, Na, Ni, Pb, Se, Sn, Sr, V, Zn were measured. ArcGIS 9.0 software was used to analyze the distribution of 96 samples of birth defects incidences and contents of 16 kinds of soil elements by thematic mapping, Kriging interpolating, and overlay analysis. Results show that the incidences of birth defects and the contents of the soil elements had similar spatial variation tendency. The contents of V, Se, Mo, As, Mg, Na elements had considerable spatial correlation with the incidence of birth defects. The low contents of V and Se and high contents of Mo and As in soil may be the cause of high incidence of birth defects. The results above verified the correlation between anomaly contents of soil elements and birth defects.

关 键 词：出生缺陷 山西省 地球化学环境 地理信息系统 

分 类 号：R181[医药卫生—流行病学]