【作者】 宋明义； 蔡子华； 黄春雷； 胡艳华； 王加恩；

【Author】 SONG Mingyi, CAI Zihua, HUANG Chunlei, HU Yanhua, WANG Jia’en (Zhejiang Institute of Geological Survey, Hangzhou 311203, China)

【机构】 浙江省地质调查院；

【摘要】 通过对浙北杭嘉湖平原区富硒土壤研究,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0.3-0.5mg/kg,平均值为0.389mg/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。更多还原

【Abstract】 Based on the study of selenium-rich soil in Hangjiahu Plain, we found that the selenium-rich soil distributed around the Tai Lake. The amount of soil selenium was from 0.3 mg/kg to 0.5 mg/kg, and its average, standard deviation and coefficient of variation were respectively 0.389 mg/kg, 0.037and 9.4%. 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.更多还原