干旱区生态环境知识资源中心(Arid): Quantitative assessment of the effects of climate, vegetation, soil and groundwater on soil moisture spatiotemporal variability in the Mongolian Plateau

Arid

DOI	10.1016/j.scitotenv.2021.152198
	Quantitative assessment of the effects of climate, vegetation, soil and groundwater on soil moisture spatiotemporal variability in the Mongolian Plateau
	Meng, Fanhao; Luo, Min; Sa, Chula; Wang, Mulan; Bao, Yuhai
通讯作者	Luo, M (corresponding author)，Inner Mongolia Normal Univ, Coll Geog Sci, Hohhot 010022, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	809
英文摘要	Soil moisture (SM) isa key parameter regulating the hydrothermal balance of global terrestrial ecosystems and plays an important role in local ecological environment, particularly in arid and semiarid areas. However, current studies have so far obtained insufficient knowledge of SM spatiotemporal variability and its primary control factors, which limits our understanding of the feedback effects of SM on surface vegetation and hydrothermal activity. Here, we chose the ecologically fragile Mongolian Plateau (MP) as the study area to quantitatively reveal the soil moisture spatiotemporal variability (SMSTV) and the influence of control factors (climate, vegetation, soil and groundwater) with the help of empirical orthogonal functions (EOFs) and geographical detector models. The results indicated that a significant trend of decreasing SM and one dominant spatial structure (EOF1) of SM was found in the MP from 1982 to 2019, which explained over 54% of the spatial variability in SM, and as the soil depth increased, the EOF1 interpretation capacity increased. In addition, EOF1 is high in the north and east and low in the south and west of the MP and that vegetation cover is also relatively greater in the high-value areas. Overall, groundwater has the greatest influence on SMSTV in the MP (q = 0.89); however, precipitation and potential evapotranspiration remain the main control factors for SMSTV for different ecological zones, while the influence of vegetation elements (NDVI and GPP) cannot be ignored, and soil textures (clay, sand, silt) have the least influence. Meanwhile, SMSTV is explained to a greater extent by the interaction of the factors rather than by a single factor. However, there are differences in the influence mechanisms of each factor on SMSTV. This study provides strong evidence that meteorological forcing is not the only factor that dominates SMSTV and that the dominant factors may vary considerably between ecological zones.
英文关键词	Soil moisture Climate Soil texture Vegetation Groundwater Mongolian Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000740206700016
WOS关键词	INNER-MONGOLIA ; LARGE-SCALE ; EVAPOTRANSPIRATION ; CATCHMENT ; EVOLUTION ; DYNAMICS ; PATTERNS ; COVER ; NDVI
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376917
作者单位	[Luo, Min] Inner Mongolia Normal Univ, Coll Geog Sci, Hohhot 010022, Peoples R China; Inner Mongolia Normal Univ, Inner Mongolia Key Lab Remote Sensing & Geog Info, Hohhot 010022, Peoples R China
推荐引用方式 GB/T 7714	Meng, Fanhao,Luo, Min,Sa, Chula,et al. Quantitative assessment of the effects of climate, vegetation, soil and groundwater on soil moisture spatiotemporal variability in the Mongolian Plateau[J],2022,809.
APA	Meng, Fanhao,Luo, Min,Sa, Chula,Wang, Mulan,&Bao, Yuhai.(2022).Quantitative assessment of the effects of climate, vegetation, soil and groundwater on soil moisture spatiotemporal variability in the Mongolian Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,809.
MLA	Meng, Fanhao,et al."Quantitative assessment of the effects of climate, vegetation, soil and groundwater on soil moisture spatiotemporal variability in the Mongolian Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 809(2022).