新疆奎屯垦区土壤氟污染调查

用网格布点法在奎屯垦区4个团场共采集土壤样品99个.通过对土壤中可溶性氟的测定,利用地统计学的方法与GIS技术研究了该地区土壤(0～20 cm)水溶性氟的污染状况,并对水溶性氟在土壤中的含量进行了预测.结果表明:所有监测数据水溶性氟含量均超过了我国地氟病发生区表层土壤水溶性氟的含量2.50 mg/kg,平均值达22.15 mg/kg,最高值达76.39 mg/kg,已经出现了高氟现象;4个团场中,129团土壤水溶性氟含量差异最大,变异系数为64.98%,土壤水溶性氟含量高的区域相对集中,大于30.00 mg/kg的区域出现在127团、128团和129团一带,其中128团所占的面积最大.

Fluorine Pollution of Soil in Kuitun Reclamation Area of Xinjiang

Ninety-nine soil samples are taken from four state farms in Kuitun reclamation area of Xinjiang by using grid sampling method,and the geo-statistical method and GIS technology are used to analyze the testing data. The result shows that the contents of water-soluble fluorine in all soil samples are more than 2.50 mg/kg which is the value in topsoil of local fluoride epidemic occurring areas in China. The average value reaches 22.15 mg/kg,the maximum was 76.39 mg/kg,and the phenomenon caused by high content of fluorine has already appeared. On the four investigating state farms,the diversity of the content of water- soluble fluorine in soil of No. 129 state farm is the maximum,the coefficient of variation is 64.98% the areas with high content of water-soluble fluorine in soil are relatively concentrated,the content of water-soluble fluorine in soil surpass 30.00 mg/kg appear at No. 127,128 and 129 states farms,and the No. 128 state farm occupies the most areas.