安徽省广德市表层土壤中硒元素分布规律探析  

RESEARCH ON WATER RESOURCES CONSERVATION FUNCTION IN ALPINE ECOLOGICALLY VULNERABLE REGION:TAKING TIANJUN COUNTY AS EXAMPLE

作　　者：秦云飞 刘广 陈祝 QIN Yunfei;LIU Guang;CHEN Zhu(No.311 Geological Team,Bureau of Geology and Mineral Exploration of Anhui Province,Anqing 246003,Anhui,China)

机构地区：[1]安徽省地质矿产勘查局311地质队,安徽安庆246003

出　　处：《资源信息与工程》2025年第2期103-108,共6页Resource Information and Engineering

基　　金：安徽省公益性地质项目“广德市土地质量地球化学调查评价”(2021-9-2-1)。

摘　　要：利用广德市土地质量地球化学调查评价项目数据对广德市表层土壤中硒元素分布规律进行探析。研究表明:广德市表层土壤硒含量范围0.05~10.74 mg/kg,均值为0.34 mg/kg;一般富硒土地面积593.56 km^(2),其中林地511.51 km^(2),园地62.01 km^(2),耕地18.70 km^(2),草地1.34 km^(2);不同土壤类型、母质单元、地貌单元、土地利用现状土壤硒含量差异明显,棕色石灰土、硅质岩类风化物残坡积物、侵蚀溶蚀低起伏低山和林地中硒含量最高;林地、园地中硒含量平均值大于0.4 mg/kg,达到了整体富硒土壤标准。The distribution pattern of selenium in surface soil of Guangde City was explored using data from the Guangde City Land Quality Geochemical Survey and Evaluation Project.The study shows that the selenium content of top soil in Guangde City ranges from 0.05 to 10.74 mg/kg,with a mean value of 0.34 mg/kg,and the general selenium-enriched land area is 593.56 km^(2),of which 511.51 km^(2)is woodland,62.01 km^(2)is gardened land,18.70 km^(2)is arable land,and 1.34 km^(2)is grassland.The soil selenium content varies significantly among different soil types,parent units,geomorphic units,and land use status,with the highest selenium content found in brown limestone soils,siliceous rock type weathered material residue and slope accumulation,erosion and dissolution of low undulating low hills,and woodland.The average value of selenium content in woodland and gardened land is more than 0.4 mg/kg,meeting the standard of selenium-rich soil.

关 键 词：硒 富硒土壤 土地质量 广德市 

分 类 号：S153[农业科学—土壤学]