贵州福泉耕地土壤硒锗地球化学特征及其影响因素分析
Geochemical Characteristics and Influencing Factors Analysis for Selenium and Germanium in Cultivated Soil of Fuquan,Guizhou
李大吉 1杜白 2李汝红 1高建才 1严易会 1刘兴金1
作者信息
- 1. 贵州省有色金属和核工业地质勘查局物化探总队,贵州都匀 558000
- 2. 云南省地质矿产开发局中心实验室(自然资源部昆明矿产资源检测中心),云南昆明 650217
- 折叠
摘要
通过采集福泉市4 085件耕地土壤样品和15条土壤剖面样品,测定土壤中硒锗和其他指标含量,对硒锗含量特征以及影响因素进行分析研究.结果表明:福泉市耕地土壤中硒背景值高于贵州省耕地土壤背景值和全国土壤背景值,锗背景值低于贵州省耕地土壤背景值但略高于全国土壤背景值;硒锗高异常呈条带状,整体走向近似南北向展布;垂向上硒锗含量总体上是随土壤深度增加而减少的趋势;土壤中硒锗主要受成土母岩影响,同时还受土壤理化指标pH值、有机质、铁、铝氧化物等因素的影响.研究成果可为福泉市富硒和富锗农业发展提供参考依据.
Abstract
By collecting 4 085 soil samples from cultivated land and 15 soil profile samples in Fuquan city,the content of selenium,germanium,and other indicators in the soil was measured,and the characteristics and influencing factors of selenium and germanium content were analyzed and studied.The results indicate that the selenium background value in cultivated land in Fuquan city is higher than that in Guizhou province and the national soil background value,while germanium background value is lower than that in Guizhou province but slightly higher than the national soil background value.The high anomaly of selenium and germanium appears as a strip,with an overall trend similar to a north-south distribution.The vertical selenium and germanium content generally shows a decreasing trend with increasing soil depth.Selenium and germanium in soil are mainly influenced by soil parent rocks,as well as soil physicochemical indicators such as pH value,organic matter,iron,and aluminum oxides.This achievement can provide a reference basis for the development of selenium and germanium rich agriculture in Fuquan city.
关键词
背景值/影响因素/土壤理化指标Key words
background value/influence factor/soil physical and chemical indicators引用本文复制引用
基金项目
贵州省福泉市耕地质量地球化学调查评价项目(2017-03-29)
出版年
2024
NETL
NSTL
万方数据