| 陕西省石头河一带土壤及植物富硒特征 |
| |
| 引用本文： | 尹宗义,王会锋,任蕊,等.陕西省石头河一带土壤及植物富硒特征[J].物探与化探,2014(2):349-353. |
| |
| 作者姓名： | 尹宗义 王会锋 任蕊 等 |
| |
| 作者单位： | 陕西省地质调查中心,陕西西安710016 |
| |
| 基金项目： | 国家专项“全国土壤现状调查及污染防治”项目（GZTR20070113） |
| |
| 摘 要： | 土壤硒的丰缺与人类和动物的健康密切相关,依据李家熙的土壤硒含量划分标准,石头河地区存在中硒土壤(0.2~0.4×10-6)和富硒土壤(0.4×10-6)。小麦籽实分析均为富硒小麦,与富硒土壤关系密切。硒形态分析表明土壤中硒的强/弱有机结合态、水溶态、残渣态、铁锰结合态、碳酸盐结合态含量变化均为:水稻土水系沉积物褐土。硒的全量及形态含量受pH值影响较大,在酸性土壤中施加一定量的CaCO3,可提高土壤的pH值,增加硒的溶解度,有利于提高植物对土壤硒的吸收。
|
| 关 键 词： | 土壤地球化学 土壤硒 水稻土 褐土 硒赋存形态 pH值 |
THE SELENIUM-RICH CHARACTERISTICS OF SOILS AND PLANTS IN SHITOU RIVER AREA,SHANXI PROVINCE |
| |
| YIN Zong-yi,WANG Hui-feng,REN Rui,PENG Li-hua,CHAO Xu,LU Ting,WANG Ming-xia.THE SELENIUM-RICH CHARACTERISTICS OF SOILS AND PLANTS IN SHITOU RIVER AREA,SHANXI PROVINCE[J].Geophysical and Geochemical Exploration,2014(2):349-353. |
| |
| Authors: | YIN Zong-yi WANG Hui-feng REN Rui PENG Li-hua CHAO Xu LU Ting WANG Ming-xia |
| |
| Institution: | (Shanxi Geological Investigation Genter,Xi＇an 710016, China) |
| |
| Abstract: | The abundance and deficiency of soil selenium is closely related to the health of human being and animals.According to the classification definition standard of soil selenium amount put forward by Li Jiaxi,it is confirmed that there exist selenium-rich soil （0.2~0.4＆#215;10-6 ） and selenium-moderate soil （＆gt;0.4＆#215;10-6 ） in Shitou River area.The analytical results of wheat seeds show that the Se a-mount is up to the standard of selenium-rich wheat.A study of the modality of Se in the soil shows that the Se content change of stream sediments and cinnamon soil,water soluble state,residue,Fe-Mn oxides and carbonate-bound selenium is in order of paddy soil＆gt;stream sediment ＆gt;cinnamon soil.Soil pH value has a great impact on the amount of ion exchange state selenium,and the addition of a certain mount of CaCO3 can improve pH value in acid soil and is in favor of increasing the solubility of selenium. |
| |
| Keywords: | soil geochemistry soil selenium paddy soil cinnamon soil mode of occurrence of selenium pH value |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
