气候变化领域集成服务门户(CCPortal): Experimental Study on the Effect of Freeze-Thaw Cycles on the Mineral Particle Fragmentation and Aggregation with Different Soil Types

CCPortal

DOI	10.3390/min11090913
	Experimental Study on the Effect of Freeze-Thaw Cycles on the Mineral Particle Fragmentation and Aggregation with Different Soil Types
	Zhai, Jinbang; Zhang, Ze; Melnikov, Andrey; Zhang, Mingyi; Yang, Linzhen; Jin, Doudou
通讯作者	Zhang, Z (通讯作者)，Northeast Forestry Univ, Sch Civil Engn, Inst Cold Regions Sci & Engn, Harbin 150040, Peoples R China.
发表日期	2021
EISSN	2075-163X
卷号	11 期号:9
英文摘要	The freeze-thaw cycle can change the size and shape of soil particles, that is, cause fragmentation and aggregation of soil mineral particles, thereby affecting the soil structure, which, in turn, affects the soil properties. In addition, the process of soil mineral fragmentation and aggregation, as an event closely related to the cold climate, plays an irreplaceable role in reconstructing the climatic conditions of a certain area and a certain period of time and has important referential significance for the restoration of historical permafrost boundaries and the study of climate change. Therefore, in order to better study the effect of freeze-thaw cycles on the fragmentation and aggregation of soil mineral particles, four soil specimens were selected for this study; the freeze-thaw cycle tests were carried out 0, 3, 6, 9, 50, and 100 times, respectively, and the test results were analyzed. The results of these experiments indicate that (1) after freeze-thaw cycles, the changes in grain-size distribution are different in various soil types, and the changes are mainly concentrated in 0.001-0.1 mm; (2) the coarse particle size particles (sand, silt) can be fragmented into relatively fine-grained particles (silt, clay). The fine-grained particles (clay) cannot undergo fragmentation, and the decrease in clay is due to its aggregation; (3) with the increase in freeze-thaw cycles, the fraction change trend of four specimens is parallel to the x-axis, which means the fragmentation and aggregation of soil mineral particles are in a state of equilibrium or balance; (4) the increase in the K-var value indicates the change in grain-size distribution, which means aggregation and fragmentation of soil mineral particles. After the 100th cycle, the K-var value of four specimens is <0.1, which belongs to a low-intensity area; (5) the freeze-thaw cycle will change the type of soil, and after 100 freeze-thaw cycles, the soil type of specimen (H) changes from silty clay loam to silty clay; (6) during the freeze-thaw process, different types of soil have different situations of aggregation and fragmentation.
关键词	MECHANISM
英文关键词	soil mineral particles; aggregation; fragmentation; freeze-thaw cycles
语种	英语
WOS研究方向	Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
WOS类目	Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
WOS记录号	WOS:000700020400001
来源期刊	MINERALS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254614
作者单位	[Zhai, Jinbang] Northeast Forestry Univ, Sch Transportat, Inst Cold Regions Sci & Engn, Harbin 150040, Peoples R China; [Zhang, Ze; Yang, Linzhen] Northeast Forestry Univ, Sch Civil Engn, Inst Cold Regions Sci & Engn, Harbin 150040, Peoples R China; [Melnikov, Andrey] Russian Acad Sci, Siberian Branch, Melnikov Permafrost Inst, Yakutsk 677010, Russia; [Zhang, Mingyi; Jin, Doudou] Chinese Acad Sci, Northwest Inst EcoEnvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Jin, Doudou] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhai, Jinbang,Zhang, Ze,Melnikov, Andrey,et al. Experimental Study on the Effect of Freeze-Thaw Cycles on the Mineral Particle Fragmentation and Aggregation with Different Soil Types[J]. 中国科学院西北生态环境资源研究院,2021,11(9).
APA	Zhai, Jinbang,Zhang, Ze,Melnikov, Andrey,Zhang, Mingyi,Yang, Linzhen,&Jin, Doudou.(2021).Experimental Study on the Effect of Freeze-Thaw Cycles on the Mineral Particle Fragmentation and Aggregation with Different Soil Types.MINERALS,11(9).
MLA	Zhai, Jinbang,et al."Experimental Study on the Effect of Freeze-Thaw Cycles on the Mineral Particle Fragmentation and Aggregation with Different Soil Types".MINERALS 11.9(2021).