焉耆盆地富硒土壤地球化学特征及成因探讨  

A Discussion on the Geochemical Features and Origin of Selenium-rich Soil in Yanqi Basin

作　　者：王刚 涂其军[2] 马宏超 杨生飞[3] Wang Gang;Tu Qijun;Ma Hongchao;Yang Shengfei(Xinjiang Institute of Geological Survey,Urumqi,Xinjiang,830000;The Second Regional Geological Survey Team,Xinjiang Bureau of Exploration and Development of Geological and Minerals,Changji,Xinjiang,831100,China;Xi’an Center of Geological Survey,CGS,Xi’an,Shaanxi,710054,China)

机构地区：[1]新疆维吾尔自治区地质调查院,新疆乌鲁木齐830000 [2]新疆维吾尔自治区地质矿产勘查开发局第二区域地质调查大队,新疆昌吉831100 [3]中国地质调查局西安地质调查中心,陕西西安710054

出　　处：《新疆地质》2019年第4期473-478,共6页Xinjiang Geology

基　　金：中国地质调查局二级项目西北五省耕地区1∶25万土地质量地球化学调查（DD20160319）;新疆地矿局2019年度自筹资金项目新疆重要富硒土壤与农作物相关性预研究（XGMB201922）联合资助

摘　　要：通过开展土地质量地球化学调查,在焉耆盆地绿洲区发现富硒土壤2546km^2,富硒土壤中硒元素含量0.30~1.80mg/kg,平均0.47mg/kg。富硒土壤中与农业种植有关的养分元素含量处于较丰富水平,具明显正相关性。综合研究认为,土壤中硒主要来源于成土母质,有利层位为侏罗系。富硒土壤区农作物样品富硒率介于31%~87%,具良好的富硒资源优势和开发潜力。According to geochemical investigation of land quality,2546 km^2 of selenium-rich soil were found in oasis area of Yanqi Basin.The content of selenium in selenium-rich soil ranged from 0.30 mg/kg to 1.80 mg/kg,with an average content of 0.47 mg/kg.The contents of nutrient elements related to agricultural cultivation in Se-rich soils are relatively rich,and there is a significant positive correlation.Comprehensive study shows that selenium in soil mainly comes from parent material,and the favorable horizon is Jurassic stratum.The selenium-enriched rate of crop samples collected from selenium-enriched soil ranges from 31%to 87%,which has good resource advantages and development potential.

关 键 词：焉耆盆地 富硒土壤 地球化学特征 湖沼相沉积 

分 类 号：P59[天文地球—地球化学]