干旱区生态环境知识资源中心(Arid): Variations in Groundwater Level and Microtopography Influence Desert Plant Communities in Shallow Aquifer Areas

Arid

DOI	10.1007/s00267-021-01526-2
	Variations in Groundwater Level and Microtopography Influence Desert Plant Communities in Shallow Aquifer Areas
	Mata-Gonzalez, Ricardo; Averett, Joshua P.; Abdallah, Mohamed A. B.; Martin, David W.
通讯作者	Abdallah, MAB (corresponding author), Oregon State Univ, Dept Anim & Rangeland Sci, Corvallis, OR 97331 USA.
来源期刊	ENVIRONMENTAL MANAGEMENT
ISSN	0364-152X
EISSN	1432-1009
出版年	2021-08
英文摘要	An improved understanding of the relationships among vegetation, groundwater level, and microtopography is crucial for making well-informed management decisions in areas with shallow groundwater resources. We measured plant species abundance/composition and richness in relation to depth to groundwater (DTW) and microtopography in Owens Valley, California, particularly in areas where DTW ranged from 0 to 4 m. Sampling occurred along 67 vegetation transects across three community types. Relationships between DTW and community composition were evaluated using non-metric multidimensional scaling (NMS), while non-parametric multiplicative regression was used to relate DTW and microtopography to species abundance. The dominant gradient in species composition (NMS Axis 1) explained similar to 51% of variation in our distance matrix and was most strongly associated (r = 0.55) with DTW. The graminoids Juncus arcticus, Leymus triticoides, and Distichlis spicata had strong affinities toward areas with the shallowest DTW (<1.5 m). One salt-adapted species Sporobolus airoides and one shrub Ericameria nauseosa dominated areas with intermediate DTW (1.5-2.0 m), whereas the shrubs Atriplex torreyi, Sarcobatus vermiculatus, and Artemisia tridentata were dominant in areas with deeper DTW (>2.0 m). Variation in microtopography affected species abundance and increased species richness for vegetation communities at either extreme of the water table gradient, shallow, and deep DTW but not the intermediate DTW. Findings indicate that desert plant communities from shallow aquifers have adapted to different DTW and microtopography conditions and that considering those adaptations may be important to manage groundwater and vegetation resources in these areas.
英文关键词	Desert plant communities Indicator species analyses Microtopography Owens Valley Shallow aquifer Water table depth
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000689641000001
WOS关键词	HAILIUTU RIVER CATCHMENT ; SPECIES RICHNESS ; WATER-TABLE ; NITROGEN RELATIONS ; SURFACE-WATER ; FINE-SCALE ; VEGETATION ; SOIL ; PATTERNS ; HETEROGENEITY
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/2XILL650/363118
作者单位	[Mata-Gonzalez, Ricardo; Abdallah, Mohamed A. B.] Oregon State Univ, Dept Anim & Rangeland Sci, Corvallis, OR 97331 USA; [Averett, Joshua P.] Oregon State Univ, Eastern Oregon Agr Res Ctr, Union, OR 97883 USA; [Martin, David W.] Los Angeles Dept Water & Power, Bishop, CA 93514 USA
推荐引用方式 GB/T 7714	Mata-Gonzalez, Ricardo,Averett, Joshua P.,Abdallah, Mohamed A. B.,et al. Variations in Groundwater Level and Microtopography Influence Desert Plant Communities in Shallow Aquifer Areas[J],2021.
APA	Mata-Gonzalez, Ricardo,Averett, Joshua P.,Abdallah, Mohamed A. B.,&Martin, David W..(2021).Variations in Groundwater Level and Microtopography Influence Desert Plant Communities in Shallow Aquifer Areas.ENVIRONMENTAL MANAGEMENT.
MLA	Mata-Gonzalez, Ricardo,et al."Variations in Groundwater Level and Microtopography Influence Desert Plant Communities in Shallow Aquifer Areas".ENVIRONMENTAL MANAGEMENT (2021).