| 黄河、长江、珠江三角洲土壤中微量元素形态分配及其地理分布趋势 |
| |
| 引用本文： | 王学军,陈静生.黄河、长江、珠江三角洲土壤中微量元素形态分配及其地理分布趋势[J].北京大学学报(自然科学版),1993(6). |
| |
| 作者姓名： | 王学军 陈静生 |
| |
| 作者单位： | 北京大学城市与环境学系
(王学军)，北京大学城市与环境学系(陈静生) |
| |
| 摘 要： | 本文对黄河、长江、珠江三角洲土壤中5种微量元素的形态分配及其地理分布趋势进行了研究。结果表明,(1)3个三角洲土壤的6种微量元素中,可交换态的含量百分比均较低,而残渣态的含量百分比达50％以上,其余三态随元素和地区的不同,有较大差异;(2)微量元素形态分配存在着一定的地域分布趋势。在3个三角洲中,碳酸盐态和残渣态含量百分比自北向南降低,有机态自北向南升高,铁锰氧化物态也呈自北向南升高趋势。
|
| 关 键 词： | 三角洲 土壤 微量元素 形态 地理分布 |
The Partitioning and Regional Distribution of SoilTrace Elements in Yellow River, YangtzeRiver and Pearl River Deltas |
| |
| WANG Xuejun,CHEN Jingsheng.The Partitioning and Regional Distribution of SoilTrace Elements in Yellow River, YangtzeRiver and Pearl River Deltas[J].Acta Scientiarum Naturalium Universitatis Pekinensis,1993(6). |
| |
| Authors: | WANG Xuejun CHEN Jingsheng |
| |
| Abstract: | The partitioning and regional distribution of 5 trace elements in soils from Yellow River, Yangtze River and Pearl River Deltas were studied. Results show that (1) In soils from the three deltas, the percent contents of exchangeable fractions are very low for all elements, and the percent contents of residual fractions are higher than 50%; (2) Regional distribution tendency exists among regions for all fractions of the elements in soil from the three deltas. The percentages of elements in carbonate fraction and residual fraction get lower from north to south, and those in organic fraction and fer-romanganese oxide fraction get higher from north to south. |
| |
| Keywords: | Delta Soil Trace element Fraction Regional distribution |
| 本文献已被 CNKI 等数据库收录！ |
