Abstract：A laboratory simulation of alternate freezing and thawing was carried out to investigate its effect on the structure of black topsoil. The results showed that: 1) Freezing and thawing action increases topsoil volume and decreases its density, and as a result, the big soil aggregates were split into smaller ones and their average weight, size and stability decreased; 2) Structural deterioration to soil was mainly affected by soil moisture and times of freeze-thaw; 3) Freezing and thawing action destroyed physical properties of the black topsoil and decreased cohesion and anti-scouribility of black soil, which is the major reason for serious freeze-thawing erosion in black soil region in spring time.
刘绪军,景国臣,杨亚娟,王亚娟,任宪平. 冻融交替作用对表层黑土结构的影响[J]. 中国水土保持科学, 2015, 13(1): 42-46.
Liu Xujun,Jing Guochen,Yang Yajuan,Wang Yajuan,Ren Xianping. Effects of alternate freezing and thawing on the structure of black topsoil. SSWCC, 2015, 13(1): 42-46.
2015, Vol. 13 
