干旱区生态环境知识资源中心(Arid): Soil Freeze-Thaw and Water Transport Characteristics Under Different Vegetation Types in Seasonal Freeze-Thaw Areas of the Loess Plateau

Arid

DOI	10.3389/feart.2021.704901
	Soil Freeze-Thaw and Water Transport Characteristics Under Different Vegetation Types in Seasonal Freeze-Thaw Areas of the Loess Plateau
	Bo, Lanfeng; Li, Zhanbin; Li, Peng; Xu, Guoche; Xiao, Lie; Ma, Bo
通讯作者	Li, ZB (corresponding author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China. ; Li, ZB (corresponding author), MWR, Yangling, Shaanxi, Peoples R China.
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2021
卷号	9
英文摘要	In the arid and semi-arid regions of the Loess Plateau, seasonal freezing and thawing influence soil water movement, and water movement directly influences vegetation growth. However, currently, research with regard to freezing and thawing processes under various vegetation types and the mechanism of soil water movement is lacking. Therefore, the present study explored soil water migration characteristics of two typical vegetation types [arbor land (AL) and shrub land (SL)] on the Loess Plateau during seasonal freezing and thawing processes using bare land (BL) as a control. We used field measured data for hourly soil temperature (ST) and soil water content (SWC) at a depth of 100 cm below the soil surface from November 2017 to March 2018. Freezing and thawing process was divided into three stages based on ST change (initial freezing period, stable freezing period, and thawing period). Compared with previous studies in this area, ST is lower than expected, and SWC migration characteristics are also different. The results revealed that: 1) the maximum freezing depth of AL and SL was 60 cm, which was 30 cm less than that of BL. The freezing date of each soil layer in BL was the earliest and average ST value was the lowest. BL had the highest degree of freezing. The freezing of all soil layers in AL occurred at a later date than that of SL. ST and the minimum soil freezing temperatures were higher than those of SL, and the capacity of AL to resist freezing was higher; 2) the SWCs in AL and BL at depths of 0-10 cm and 10-30 cm decreased, whereas SWCs of AL and BL at a depth of 60 cm increased by 152 and 146%, respectively. The SWCs of SL at soil depths of 0-10 cm, 10-30 cm, and 30-60 cm increased by 46.3, 78.4 and 205%, respectively. The amount and distribution of soil moisture in SL were optimum when compared to those of AL and BL. The results of the present study could provide a scientific basis for vegetation restoration in arid and semi-arid areas of the Loess Plateau.
英文关键词	soil temperature soil water content soil hydrothermal transport natural freeze-thaw cycle soil heat transfer
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000677858400001
WOS关键词	LAND-USE ; MOISTURE ; VARIABILITY ; DYNAMICS ; REGION ; PRECIPITATION ; DEGRADATION ; ECOSYSTEMS ; PHOSPHORUS ; MIGRATION
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363280
作者单位	[Bo, Lanfeng; Li, Zhanbin; Ma, Bo] Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China; [Bo, Lanfeng; Li, Zhanbin; Ma, Bo] MWR, Yangling, Shaanxi, Peoples R China; [Li, Peng; Xu, Guoche; Xiao, Lie] Univ Chinese Acad Sci, Beijing, Peoples R China; Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Xian, Peoples R China
推荐引用方式 GB/T 7714	Bo, Lanfeng,Li, Zhanbin,Li, Peng,et al. Soil Freeze-Thaw and Water Transport Characteristics Under Different Vegetation Types in Seasonal Freeze-Thaw Areas of the Loess Plateau[J]. 西北农林科技大学,2021,9.
APA	Bo, Lanfeng,Li, Zhanbin,Li, Peng,Xu, Guoche,Xiao, Lie,&Ma, Bo.(2021).Soil Freeze-Thaw and Water Transport Characteristics Under Different Vegetation Types in Seasonal Freeze-Thaw Areas of the Loess Plateau.FRONTIERS IN EARTH SCIENCE,9.
MLA	Bo, Lanfeng,et al."Soil Freeze-Thaw and Water Transport Characteristics Under Different Vegetation Types in Seasonal Freeze-Thaw Areas of the Loess Plateau".FRONTIERS IN EARTH SCIENCE 9(2021).