摘要
基于青海省开展的土地质量地球化学调查数据,通过分析土壤pH范围和Se含量特征,掌握青海省土壤酸碱性和土壤Se背景值,建立小麦、油菜籽、豌豆、大蒜、牧草等作物与根系土Se的富集模型,结合人群Se摄入推荐量和青海省富硒农畜产品Se含量标准值,推算青海省富Se土壤推荐值。建议青海省碱性土壤以0.23×10^(-6)作为富硒土壤下限值,中酸性土壤以0.25×10^(-6)作为富硒土壤下限值。本次研究对青海省富硒土壤地方标准的制定及指导富硒产业发展具有重要意义。
The acid-base properties and Se background values of the soil in Qinghai Province were obtained by analyzing the pH and Se content of the soil based on the data derived from the geochemical survey of land quality conducted in Qinghai Province.The Se enrichment models of root soil and crops such as wheat,rapeseed,pea,garlic,and forage were established accordingly.The recommended values of Se-rich soil in Qinghai were calculated by combining the recommended in take of Se in the population with the standard value of Se content in Se-rich agricultural and livestock products in Qinghai Province.It is recommended that the lower limit of Se-rich soil for alkaline soil and neutral and acidic soil in Qinghai Province should be 0.23×10^(-6) and 0.25×10^(-6),respectively.This study is greatly significant for the formulation of the local standards for Se-rich soil in Qinghai Province and for guiding the development of the selenium industry.
作者
马强
张亚峰
黄强
姬丙艳
苗国文
马风娟
马瑛
MA Qiang;ZHANG Ya-Feng;HUANG Qiang;JI Bing-Yan;Miao Guo-Wen;MA Feng-Juan;MA Ying(The Fifth Geological Exploration Institute of Qinghai Province,Xining 810099,China)
出处
《物探与化探》
CAS
北大核心
2022年第3期772-780,共9页
Geophysical and Geochemical Exploration
基金
中国地质调查局项目“青海省多目标区域地球化学调查(西宁市)”(GZTR20070115)
“青海化隆—循化地区土地环境地质调查”(1212011140133)
“青海省多目标区域地球化学调查(环青海湖北部地区)”(GZTR20080117)
“西北五省耕地区1∶25万土地质量地球化学调查”(121201011000150023)
青海省地质勘查基金项目“青海省西宁—乐都富硒区生态地球化学评价”。
关键词
富硒土壤
碱性土壤
地方标准
富硒标准
Se-rich soil
alkaline soil
local standard
selenium standard
