Effect of temperature on mudstone disintegration process revealed with image analysis

作     者：YAN Luo-bin Srdjan PETROVIC HUANG Cheng XIE Chun-xia ZONG Hui-ming Milica KASANIN-GRUBIN 

作者机构：School of Geographical SciencesSouthwest UniversityChongqing400715China Danxia Landscape Research InstituteShaoguan512330China Institute of ChemistryTechnology and MetallurgyDepartment of Catalysis and Chemical Engineering and Center for Environmental Chemistry and EngineeringUniversity of BelgradeBelgrade11000Serbia School of Geographical and PlanningSun Yat-sen UniversityGuangzhou410275China 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2022年第19卷第7期

页      面：2126-2135页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 081803[工学-地质工程] 07[理学] 08[工学] 0303[法学-社会学] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0705[理学-地理学] 0815[工学-水利工程] 0816[工学-测绘科学与技术] 0706[理学-大气科学] 0813[工学-建筑学] 0704[理学-天文学] 0833[工学-城乡规划学] 0713[理学-生态学] 0834[工学-风景园林学（可授工学、农学学位）] 

基　　金：funded by the Natural Science Foundation of China(Grants 41901005) financial support from China Scholarship Council[grant number CSC201806995083] supported by the Ministry of Education,Science and Technological Development,Republic of Serbia(Grant No.451-039/2021-14/200026,451-03-9/2021-14/200168 and 451-03-9/2021-14/200358) 

主　　题：Mechanical weathering Temperature effect Quantifying weathering rates Fragment size Fragment shape 

摘      要：Quantifying rock weathering processes,especially in ways of nondisturbance and on-site investigation,is one of the most critical tasks in predicting rocks erosion rates and understanding the sediment *** proposed a more reproducible approach to test how image analysis can quantify the changes in the size and shape of fragments during the weathering *** artificial models were designed to select suitable metrics among over 20 *** validate the efficiency of image analysis,we analyzed rocks from badlands in Nanxiong Basin,Southeast China,under three different ranges of temperature differences(TD)during cyclic wetting and drying(WD).Our results show that TDs can accelerate the disintegration rate,and even if there is only a 20℃ difference in the range of TDs,an apparent difference in fragment size was ***,the shape of fragments became more round as the increasing number of cyclic treatments,and for samples that went through the same number of treatments,the larger the temperature difference,the more round the shape *** that serves as another evidence for landscape evolution response to climatic warming.