| 松嫩平原盐渍土钠吸附比推算土壤碱化度研究 |
| |
| 作者姓名： | CHI Chun-Ming ZHAO Chang-Wei SUN Xiao-Jing WANG Zhi-Chun |
| |
| 作者单位： | CHI Chun-Ming,ZHAO Chang-Wei(Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012,China; Graduate University of Chinese Academy of Sciences, Beijing 100049,China);SUN Xiao-Jing,WANG Zhi-Chun(Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012,China) |
| |
| 基金项目： | the Knowledge Innovation Program of the Chinese Academy of Sciences，the Non-profit Industry Financial Program of Ministry of Agriculture of China，the National Key Technology Research and Development Program of China，the Chinese Academy of Sciences Action Plan for the Development of Western China |
| |
| 摘 要： | Soil exchangeable sodium percentage (ESP) and sodium adsorption ratio (SAR) are commonly used to assess soil sodicity.Correlation between ESP and SAR of saturated pasted extract (SAR e) or of 1:5 (m:m) mixture soil to water (SAR 1:5) has been documented to predict ESP from SAR.However limited studies have been undertaken to model soil ESP based on soil SAR in the Songnen Plain,Northeast China.In this study,117 soil samples were used to predict ESP from SAR e and SAR 1:5 of salt-affected soils in western Songnen Plain.Soil ESP was highly related (r 2 > 0.76,P < 0.001) with SAR e and SAR 1:5.ESP of salt-affected soils in the Songnen Plain could be predicted using a logarithmic regression equations of ESP=10.72 · ln(SAR e) 15.36 and ESP=11.44 · ln(SAR 1:5) + 5.48.
|
| 关 键 词： | ESP SAR saturated paste extract soil salinity soil sodicity |
Estimating exchangeable sodium percentage from sodium adsorption ratio of salt-affected soil in the Songnen Plain of Northeast China |
| |
| CHI Chun-Ming,ZHAO Chang-Wei,SUN Xiao-Jing,WANG Zhi-Chun.Estimating exchangeable sodium percentage from sodium adsorption ratio of salt-affected soil in the Songnen Plain of Northeast China[J].Pedosphere,2011,21(2):271-276. |
| |
| Authors: | CHI Chun-Ming ZHAO Chang-Wei SUN Xiao-Jing and WANG Zhi-Chun |
| |
| Institution: | Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012 (China); Graduate University of the Chinese Academy of Sciences, Beijing 100049 (China);Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012 (China); Graduate University of the Chinese Academy of Sciences, Beijing 100049 (China);Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012 (China);Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012 (China) |
| |
| Abstract: | Soil exchangeable sodium percentage (ESP) and sodium adsorption ratio (SAR) are commonly used to assess soil sodicity.Correlation between ESP and SAR of saturated pasted extract (SAR e) or of 1:5 (m:m) mixture soil to water (SAR 1:5) has been documented to predict ESP from SAR.However limited studies have been undertaken to model soil ESP based on soil SAR in the Songnen Plain,Northeast China.In this study,117 soil samples were used to predict ESP from SAR e and SAR 1:5 of salt-affected soils in western Son... |
| |
| Keywords: | ESP SAR saturated paste extract soil salinity soil sodicity |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《土壤圈》浏览原始摘要信息 |
| 点击此处可从《土壤圈》下载免费的PDF全文 |
