Volume 27 Issue 1
Feb.  2010
Turn off MathJax
Article Contents

DOU Chun-ying, XU Wen-xin, YE Zheng-qian, ZHANG Yuan-yuan, YAO Fang1, Lǔ Jia-long3. Zinc adsorption-desorption characteristics of six typical cropland soils from northwest and southeast China[J]. Journal of Zhejiang A&F University, 2010, 27(1): 8-14. doi: 10.11833/j.issn.2095-0756.2010.01.002
Citation: DOU Chun-ying, XU Wen-xin, YE Zheng-qian, ZHANG Yuan-yuan, YAO Fang1, Lǔ Jia-long3. Zinc adsorption-desorption characteristics of six typical cropland soils from northwest and southeast China[J]. Journal of Zhejiang A&F University, 2010, 27(1): 8-14. doi: 10.11833/j.issn.2095-0756.2010.01.002

Zinc adsorption-desorption characteristics of six typical cropland soils from northwest and southeast China

doi: 10.11833/j.issn.2095-0756.2010.01.002
More Information
  • Corresponding author: YE Zheng-qian
  • Publish Date: 2010-02-20
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article views(4142) PDF downloads(140) Cited by()

Related
Proportional views

Zinc adsorption-desorption characteristics of six typical cropland soils from northwest and southeast China

doi: 10.11833/j.issn.2095-0756.2010.01.002
    Corresponding author: YE Zheng-qian

Abstract: Soil zinc(Zn) availability varies very greatly among different soils. Adsorption-desorption characteristics of six typical cropland soils from northwest(Loess soil,calcareous cinnamon soil,and Lou soil) and southeast(red calcareous soil,red soil,and blue-purple soil) China were studied. Results showed that Zn adsorbed by soils increased with initial concentrations of Zinc added(from 0 - 149 mgL-1 solutions) and that the soil Zn desorption rate increased with the soil adsorbed Zn. Isothermal curves of Zn adsorption from these six soils fit well to Langmuir,Freundlich,and Temkin equations with all the coefficients,except the blue-purple paddy soil,being>0.9. Soil organic matter content contributed the most to soil Zn adsorption,so regardless soil pH,maximum Zn adsorbed by soils from southeast China was greater than from the northwest. Blue-purple paddy soil had the greatest maximum Zn adsorbed(3 333 mgkg-1)and Loess soil the least(909 mgkg-1). Regardless of soil site locations,for all the calcareous soils,the maximum soil buffering capacity,the intensity of soil Zn adsorption,and the amount of soil fixed Zn were greater than for acid soils. Due to its high organic content and CEC,red calcareous soil showed greater maximum buffering capacity(294 mgkg-1) and maximum amount of soil Zn fixed(135 mgkg-1) than the calcareous soils collected from northwest China. [Ch,2 fig. 2 tab. 23 ref.]

DOU Chun-ying, XU Wen-xin, YE Zheng-qian, ZHANG Yuan-yuan, YAO Fang1, Lǔ Jia-long3. Zinc adsorption-desorption characteristics of six typical cropland soils from northwest and southeast China[J]. Journal of Zhejiang A&F University, 2010, 27(1): 8-14. doi: 10.11833/j.issn.2095-0756.2010.01.002
Citation: DOU Chun-ying, XU Wen-xin, YE Zheng-qian, ZHANG Yuan-yuan, YAO Fang1, Lǔ Jia-long3. Zinc adsorption-desorption characteristics of six typical cropland soils from northwest and southeast China[J]. Journal of Zhejiang A&F University, 2010, 27(1): 8-14. doi: 10.11833/j.issn.2095-0756.2010.01.002

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return