气候变化领域集成服务门户(CCPortal): Anomalous water retention capacity of alpine meadow soil with eolian dust accretion on the Tibetan Plateau

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DOI	10.1016/j.catena.2022.106159
	Anomalous water retention capacity of alpine meadow soil with eolian dust accretion on the Tibetan Plateau
	Pei, Le-Le; Feng, Jin-Liang; Zhang, Wen; Lin, Yong-Chong; Hu, Hai-Ping; Wang, Kun-Ying; Chen, Ying-Ying; Zhang, Qing
通讯作者	Feng, JL (通讯作者)
发表日期	2022
ISSN	0341-8162
EISSN	1872-6887
卷号	213
英文摘要	Under high altitude or cold climatic conditions, the characteristics and factors controlling the water retention capacity of alpine meadow soils are poorly known. Here, we focus on alpine meadow soils, with eolian dust accretion, in the Tibetan Plateau and measured basic soil physiochemical properties and soil water retention curves (SWRCs). The results indicate that the competition between eolian processes (dust transport, eolian sorting, and dust accretion) and pedogenesis have led to significant changes of the physicochemical properties and soil water capacity of the alpine meadow soils in both spatial and with depth in the studied area. The most significant features of the alpine meadow soils are the strong accumulation of soil organic matter (SOM), soil acidification, and carbonate leaching. The studied alpine meadow soils have an unusually high saturated water content (SWC), field capacity (FC), and permanent wilting point (PWP). However, the plant available water content (AWC) does not always increase with increasing SOM, because of the rate of increase of the FC does not exceed that of the PWP. We conclude that the negative effects of carbonate leaching on soil aggregate formation and soil structural stability are likely responsible for the observed variations in FC and the resulting AWC. Finally, based on direct measurements of SWRCs and the corresponding alpine meadow soil physicochemical parameters, we developed and validated several pedotransfer functions (PTFs) for these alpine meadow soils which can be used to predict water retention from basic soil data.
关键词	ORGANIC-MATTER PEDOTRANSFER FUNCTIONS BULK-DENSITY AEOLIAN SEDIMENTATION HYDRAULIC-PROPERTIES HUMIC SUBSTANCES UINTA MOUNTAINS AVAILABLE WATER CLIMATE-CHANGE CARBON
英文关键词	Alpine meadow soil; Eolian dust accretion; Soil acidification; Carbonate leaching; Soil water retention curve; Pedotransfer functions
语种	英语
WOS研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:000790438800002
来源期刊	CATENA
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260698
推荐引用方式 GB/T 7714	Pei, Le-Le,Feng, Jin-Liang,Zhang, Wen,et al. Anomalous water retention capacity of alpine meadow soil with eolian dust accretion on the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2022,213.
APA	Pei, Le-Le.,Feng, Jin-Liang.,Zhang, Wen.,Lin, Yong-Chong.,Hu, Hai-Ping.,...&Zhang, Qing.(2022).Anomalous water retention capacity of alpine meadow soil with eolian dust accretion on the Tibetan Plateau.CATENA,213.
MLA	Pei, Le-Le,et al."Anomalous water retention capacity of alpine meadow soil with eolian dust accretion on the Tibetan Plateau".CATENA 213(2022).