| 三江平原西部土壤硒分布特征及其影响因素 |
| |
| 引用本文： | 牛雪,何锦,庞雅婕,明圆圆.三江平原西部土壤硒分布特征及其影响因素[J].物探与化探,2021(1):223-229. |
| |
| 作者姓名： | 牛雪 何锦 庞雅婕 明圆圆 |
| |
| 作者单位： | 中国地质调查局水文地质环境地质调查中心;吉林大学环境与资源学院 |
| |
| 基金项目： | 中国地质调查局项目(121201012000161317、DD20190339)。 |
| |
| 摘 要： | 近年来在黑龙江三江平原局部地区发现有珍贵的富硒土地,但对三江平原土壤硒的分布以及土壤硒含量的控制因素研究较少。三江平原西部地区土地质量地球化学调查发现,该区表层土壤主要以足硒为主,未见硒中毒土壤,富硒土壤主要分布于完达山山前至沿挠力河之间的冲湖积低平原地区,少量分布于萝北县城北部的湖成剥蚀台地,硒不足或硒潜在不足地区主要沿松花江河流以及萝北地区黑龙江古河道展布。根据相关性分析、因子分析、聚类分析结果,并结合硒元素地球化学空间分布,认为三江平原表层土壤硒含量主要受表层土壤中有机质以及土壤质地中黏土的吸附作用影响,铁、锰等氧化物以及土壤pH对硒富集具有一定影响,但作用较小。土壤环境质量综合评价显示三江平原地区多为无风险区,是一块珍贵的清洁土地资源,当地可依托富硒土地发展绿色富硒农业。
|
| 关 键 词： | 三江平原 土壤 硒 分布特征 影响因素 |
Distribution feature of soil selenium in west Sanjiang plain and its influencing factors |
| |
| NIU Xue,HE Jin,PANG Ya-Jie,MING Yuan-Yuan.Distribution feature of soil selenium in west Sanjiang plain and its influencing factors[J].Geophysical and Geochemical Exploration,2021(1):223-229. |
| |
| Authors: | NIU Xue HE Jin PANG Ya-Jie MING Yuan-Yuan |
| |
| Institution: | (Center for Hydrogeology and Environmental Geology,China Geological Survey,Baoding 071051,China;Institute of Environment and Resources,Jilin University,Changchun 130026,China) |
| |
| Abstract: | In recent years,precious selenium-rich land has been discovered in Sanjiang plain,Heilongjiang Province;nevertheless,studies of the distribution and the controlling factors of soil selenium content have been rarely reported.Geochemical investigation of land quality in the western part of Sanjiang plain has revealed that the surface soil in this area is mainly sufficient,without selenium poisoning.The selenium-rich soil is mainly distributed in the alluvial lacustrine low plain area between the front of Wanda Mountain and the Naoli River,and secondarily distributed in the lacustrine denudation platform in the north of Luobei County.The selenium-deficient and selenium-potential-deficient areas mainly existalong the Songhua River and the ancient course of Luobei River in Luobei area.Based on the combination of statistical correlation analysis,factor analysis,clustering analysis and the selenium spatial distribution,the authors consider that the selenium content in the surface soil of Sanjiang plain is mainly affected by the adsorption of organic matter and clay minerals in the surface soil.Oxides of iron,manganese and other elements as well as soil pH have a relatively weaker effect on selenium enrichment.The comprehensive evaluation of soil environmental quality shows that Sanjiang plain area is mostly a risk-free area,which is a precious clean land resource.Green selenium-rich agriculture can be developed by relying on selenium-rich land. |
| |
| Keywords: | Sanjiang plain soil selenium distribution characteristics influencing factors of content |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
