| 松嫩平原吕大火房垂直剖面中硒赋存形态及影响因素分析 |
| |
| 引用本文： | 张立,姜侠,崔玉军,窦智慧,李瑛,孙振伟.松嫩平原吕大火房垂直剖面中硒赋存形态及影响因素分析[J].地质与资源,2020,29(6):603. |
| |
| 作者姓名： | 张立 姜侠 崔玉军 窦智慧 李瑛 孙振伟 |
| |
| 作者单位： | 1. 黑龙江省自然资源调查院, 黑龙江 哈尔滨 150036;2. 黑龙江省黑土地水土资源研究重点实验室, 黑龙江 哈尔滨 150036;3. 黑龙江省地质矿产局, 黑龙江 哈尔滨 150036 |
| |
| 基金项目： | 黑龙江省地质勘查专项“黑龙江省两大平源示范区综合改革试验区寒地富硒土地环境调查评价”项目（KCZX-YCCZ-2015031）. |
| |
| 摘 要： | 吕大火房剖面位于松嫩平原东部，是研究松嫩平原富硒土壤带中硒来源的典型自然剖面.在白垩系嫩江组（K2n）两条垂直剖面上共采集了33件样品，分析了硒及其赋存的7种形态、总有机碳（TOC）、pH等理化指标.结果表明，所采集的样品硒含量在0.01×10-6～3.05×10-6之间，平均含量0.56×10-6，不同层位样品硒含量差异较大；剖面样品中硒以残渣态硒为主要赋存形式，残渣态硒平均含量0.092×10-6，所占比例为51.98%.剖面样品硒含量主要受成土母质（油页岩）影响，相关分析结果表明，TOC和pH对剖面硒含量分布有一定的影响，TOC与强有机结合态硒、腐殖酸结合态硒、离子交换态硒、水溶态硒呈正相关关系，pH与各形态硒均呈负相关关系.
|
| 关 键 词： | 地球化学 富硒土壤 硒形态 白垩系嫩江组 松嫩平原 |
| 收稿时间： | 2020-08-17 |
ANALYSIS ON THE OCCURRENCE FORMS OF SELENIUM AND INFLUENCING FACTORS IN LYUDAHUOFANG VERTICAL SECTION OF SONGNEN PLAIN |
| |
| ZHANG Li,JIANG Xia,CUI Yu-jun,DOU Zhi-hui,LI Ying,SUN Zhen-wei.ANALYSIS ON THE OCCURRENCE FORMS OF SELENIUM AND INFLUENCING FACTORS IN LYUDAHUOFANG VERTICAL SECTION OF SONGNEN PLAIN[J].Geology and Resources,2020,29(6):603. |
| |
| Authors: | ZHANG Li JIANG Xia CUI Yu-jun DOU Zhi-hui LI Ying SUN Zhen-wei |
| |
| Institution: | 1. Heilongjiang Institute of Natural Resources Survey, Harbin 150036, China;2. Heilongjiang Key Laboratory of Black Soil and Water Resources Research, Harbin 150036, China;3. Heilongjiang Bureau of Geology and Mineral Resources, Harbin 150036, China |
| |
| Abstract: | The Lyudahuofang section located in the east of Songnen Plain is a typical natural section for the study of selenium(Se) source in the Se-rich soil belt of Songnen Plain. A total of 33 samples are collected from two vertical sections of Cretaceous Nenjiang Formation (K2n) to analyze Se and its seven occurrence forms, and physicochemical indexes such as TOC and pH. The results show that the Se content is 0.01×10-6-3.05×10-6, averagely 0.56×10-6, with great variance in samples from different layers. Residual selenium is the main form in section samples with the average content of 0.092×10-6, accounting for 51.98%. The Se content is mainly affected by parent material (oil shale). The correlation analysis results show that TOC and pH have certain effects on the distribution of Se content. That is, TOC is positively correlated with Se of strong organic bound, humic acid bound, ion-exchangeable and water soluble forms; while pH is negatively correlated with Se of all forms. |
| |
| Keywords: | geochemistry Se-rich soil form of selenium Cretaceous Nenjiang Formation Songnen Plain |
|
| 点击此处可从《地质与资源》浏览原始摘要信息 |
| 点击此处可从《地质与资源》下载免费的PDF全文 |
