杭嘉湖平原区富硒土壤特征与成因分析  

The Characteristics and Genetic Analysis of Selenium-rich Soil in Hangjiahu Plain of Northern Zhejiang

作　　者：宋明义 蔡子华 黄春雷 胡艳华 王加恩 

机构地区：[1]浙江省地质调查院,浙江杭州311203

出　　处：《广东微量元素科学》2011年第8期20-26,共7页Trace Elements Science

基　　金：中国地质调查局大调查项目(批准号:200214200013)资助

摘　　要：通过对浙北杭(州)嘉(兴)湖(州)平原区富硒土壤的研究,发现区内富硒土壤环太湖周围不连续地分布,土壤硒全量主要在0.3～0.5 mg/kg,平均值为0.389 mg/kg,标准离差和变异系数分别为0.037和9.4%;土壤硒与土壤有机质关系密切(n=779,r=0.550),而与土壤pH不相关;土壤在有机质丰富和氧化条件下,农产品富硒效果好。在对富硒土壤成因进行深入研究的基础上,提出湖沼相富硒土壤新类型。Based on the study of selenium - rich soil in Hangjiahu Plain, the result showed that the selenium - rich soil distributed around the Tai Lake. The amount of soil selenium was from 0. 3 to 0. 5 mg/kg and its average, standard deviation and coefficient of variation were respectively 0. 389 mg/kg, O. 037 and 9.4%. The correlation analysis indicated that selenium was closely related to soil organic matter, （n = 779, r = 0. 550）, but it was not related to soil pH. The result of further study showed that the possibility of the agricultural products selenium - rich was high in the soil condition of rich in organic matter and reducing environment. Finally, based on the results of the study, limnetic facies type of selenium - rich soil was first put forward.

关 键 词：湖沼相 土壤母质 富硒土壤 基本特征 成因分析 浙北平原 

分 类 号：S159.2[农业科学—土壤学]