The changing pore size distribution of swelling and shrinking soil revealed by nuclear magnetic resonance relaxometry
文献类型： 外文期刊
作者： Shi, Fugang 1 ; Zhang, Congzhi 1 ; Zhang, Jiabao 1 ; Zhang, Xiangning 2 ; Yao, Jian 2 ;
作者机构： 1.Chinese Acad Sci, State Expt Stn Agroecosyst Fengqiu, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Peoples R China
2.Henan Acad Agr Sci, Inst Plant Nutr Agr Resources & Environm Sci, Zhengzhou 450002, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
关键词： Shrinkage characteristic curve;Soil moisture;Soil shrinkage;Transverse relaxation time;Vertisol
期刊名称：JOURNAL OF SOILS AND SEDIMENTS （ 影响因子：3.308； 五年影响因子：3.586 ）
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收录情况： SCI
摘要： Purpose Determining 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.
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