The changing pore size distribution of swelling and shrinking soil revealed by nuclear magnetic resonance relaxometry

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• 作者：Fugang Shi ; Congzhi Zhang ; Jiabao Zhang ; Xiangning Zhang…
• 关键词：Shrinkage characteristic curve ; Soil moisture ; Soil shrinkage ; Transverse relaxation time ; Vertisol
• 刊名：Journal of Soils and Sediments
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：17
• 期：1
• 页码：61-69
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Soil Science & Conservation; Environment, general; Environmental Physics;
• 出版者：Springer Berlin Heidelberg
• ISSN：1614-7480
• 卷排序：17

文摘

PurposeDetermining soil pore size distribution is difficult and time-consuming using traditional methods. Additionally, for swelling and shrinking soil, the specific volume of soil changes with soil moisture conditions. Nuclear magnetic resonance (NMR) relaxometry allows observation of pore size distribution changes during the process of dehydration and soil shrinkage.