New explanations for gully formation on farmlands in China's Mollisols region: Fissure evidence by spring freeze-thaw actions

被引：2

作者：

Hu, Liang-Jun ^{[1
]}

Wang, Linlin ^{[1
]}

Zhang, Fuman ^{[1
]}

机构：

[1] Northeast Normal Univ, Key Lab Vegetat Ecol, Minist Educ, Changchun, Peoples R China

来源：

JOURNAL OF SOIL AND WATER CONSERVATION | 2021年 / 76卷 / 05期

基金：

中国国家自然科学基金;

关键词：

BLACK SOIL REGION; CRACK DYNAMICS; CLAY SOIL; EROSION; VEGETATION; IMPACTS; FLOW;

D O I：

10.2489/jswc.2021.0615A

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

We thus conclude that so long as the soils, no matter clay or not, could retain sufficient water either dispersed uniformly or unevenly throughout the soil, freeze-thaw actions would result in the swell-shrink dynamics of the soils and the likely occurrence of fissures. This implies greater possibilities for initiation and occurrence of gullies that develop from fissures induced by freeze-thaw processes in farmlands or other lands over the Mollisols region in northeastern China. Together with the alluvial interpretations, our evidence of fissures caused by freeze-thaw actions may contribute to a better understanding of wide occurrences of gullies in the Mollisols regions of China. © 2021 Soil Conservation Society of America. All rights reserved.

引用

页码：89A / 91A

页数：3