干旱区生态环境知识资源中心(Arid): How does climate seasonality influence weathering processes in badland landscapes?

Arid

DOI	10.1016/j.catena.2024.108136
	How does climate seasonality influence weathering processes in badland landscapes?
	Avcioglu, Aydogan; Kasanin-Grubin, Milica; Antic, Nevena; de las Heras, Mariano Moreno; Mohammadi, Ali; Schwanghart, Wolfgang; Yetemen, Omer; Tosti, Tomislav; Dojcinovic, Biljana; Gorum, Tolga
通讯作者	Avcioglu, A
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2024
卷号	243
英文摘要	An intricate association between weathering and erosional processes is largely controlled by climate disparities. Weathering as a predisposing process for natural hazards, landform evolution, and sediment mobility, hosts key uncertainties in our understanding of how climate controls differential weathering types and rates. Here, we investigate how weathering is influenced by seasonal changes in precipitation and temperature in badland landscapes. Previous studies have commonly adopted rainfall simulation approach in the field or laboratory, but have simulated only steady climate conditions to understand weathering dynamics. Taking these studies further, we simulated seasonal changes in precipitation and temperature in the laboratory. To understand their weathering response, we exposed samples collected from four different climates over twelve sequential seasons, reflecting a 3-year period. We used pH, electrical conductivity (EC), ion concentrations, and surficial changes as chemical and physical proxies, respectively, to infer types and trends of weathering. Based on the influence of sediment physicochemical properties (especially high sodium absorption ratio (SAR)) on weathering processes, our findings reveal that sinusoidal trends attaining their peak level in spring in Na + concentration, which overcomes other ions, contribute to an accelerated dispersion degree with concurrently decreasing pH in marly sediments in the Arid region. Moreover, the recurrent pattern of increased Ca 2 + levels, especially during winter seasons, can enhance the extent of sediment aggregations within Mediterranean sandy mudstones. In conclusion, consistent with previous studies, wetting - drying cycles are crucial in physical weathering and regolith behavior, which resulted in cyclic deep crust formations in the spring and summer seasons due to the high swelling capacity of samples. Overall, this study demonstrates how seasonal changes in climate regulate the degree of chemical and physical weathering processes in badland landscapes.
英文关键词	Weathering processes Climate seasonality Badlands Turkey
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001250272300001
WOS关键词	CENTRAL PYRENEES ; GRAIN-SIZE ; EROSION ; CALANCHI ; PATTERNS ; MUDSTONE ; BASILICATA ; MINERALOGY ; VALLCEBRE ; CATCHMENT
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403167
推荐引用方式 GB/T 7714	Avcioglu, Aydogan,Kasanin-Grubin, Milica,Antic, Nevena,et al. How does climate seasonality influence weathering processes in badland landscapes?[J],2024,243.
APA	Avcioglu, Aydogan.,Kasanin-Grubin, Milica.,Antic, Nevena.,de las Heras, Mariano Moreno.,Mohammadi, Ali.,...&Gorum, Tolga.(2024).How does climate seasonality influence weathering processes in badland landscapes?.CATENA,243.
MLA	Avcioglu, Aydogan,et al."How does climate seasonality influence weathering processes in badland landscapes?".CATENA 243(2024).