干旱区生态环境知识资源中心(Arid): Stochastic dynamics of wetlandscapes: Ecohydrological implications of shifts in hydro-climatic forcing and landscape configuration

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DOI	10.1016/j.scitotenv.2019.133765
	Stochastic dynamics of wetlandscapes: Ecohydrological implications of shifts in hydro-climatic forcing and landscape configuration
	Bertassello, Leonardo E.1; Jawitz, James W.2; Aubeneau, Antoine F.1; Botter, Gianluca 3; Rao, P. Suresh C.1,4
通讯作者	Bertassello, Leonardo E.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	694
英文摘要	Wetlands are embedded in landscapes in fractal spatial patterns, and are characterized by highly dynamic, interlinked hydrological, biogeochemical, and ecological functions. We propose here a stochastic approach to evaluate and predict the spatiotemporal hydrologic variability of wetlands at landscape scale (100 km(2)). Stochastic hydro-climatic forcing (daily rainfall and evapotranspiration) and the landscape topographic setting (spatial structure of wetlands within the landscape) are key drivers of wetland eco-hydrologic functionality. The novelty of our approach lies in the quantification of the hydrological dynamics for all wetlands distributed in a given landscape, and in linking stochasticity of hydroclimatic forcing and ecologically meaningful wetland network metrics. We applied the modeling framework to investigate daily hydrologic dynamics in six landscapes across the U.S. that span gradients of hydroclimate and abundance of wetlands. We assess landscape-scale patterns using four key wetland hydrological attributes that have significance in terms of aquatic habitat suitability and dispersal: (1) Abundance (2) Diversity (3) Persistence, and (4) Accessibility. We observe that the hydrologic responses of each of the six landscapes are driven by the interactions between regional stochastic hydro-climatic forcing and landscape topographic setting. Despite differences in these features, similar scaling relations define diversity (area distributions) and accessibility (separation-distance distributions). Persistence of hydrologic regimes, defined by duration of inundation above thresholds, was least in more-arid settings, and higher in humid settings, consistent with intuitive understanding. These results can support assessments of the spatiotemporal variability of ecohydrological attributes in diverse wetlandscapes, including aquatic species dispersal and habitat suitability for unique flora and fauna. (C) 2019 Elsevier B.V. All rights reserved.
英文关键词	Wetlandscapes Landscape connectivity Hydrologic regimes Persistence
类型	Article
语种	英语
国家	USA ; Italy
收录类别	SCI-E
WOS记录号	WOS:000496780900121
WOS关键词	GEOGRAPHICALLY ISOLATED WETLANDS ; CONNECTIVITY ; MODELS ; VOLUME ; POOLS ; LIDAR ; SIZE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-12-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311349
作者单位	1.Purdue Univ, Lyles Sch Civil Engn, W Lafayette, IN 47907 USA; 2.Univ Florida, Soil & Water Sci Dept, Gainesville, FL 32611 USA; 3.Univ Padua, Dept Civil Architectural & Environm Engn, I-35100 Padua, Italy; 4.Purdue Univ, Agron Dept, W Lafayette, IN 47907 USA
推荐引用方式 GB/T 7714	Bertassello, Leonardo E.,Jawitz, James W.,Aubeneau, Antoine F.,et al. Stochastic dynamics of wetlandscapes: Ecohydrological implications of shifts in hydro-climatic forcing and landscape configuration[J],2019,694.
APA	Bertassello, Leonardo E.,Jawitz, James W.,Aubeneau, Antoine F.,Botter, Gianluca,&Rao, P. Suresh C..(2019).Stochastic dynamics of wetlandscapes: Ecohydrological implications of shifts in hydro-climatic forcing and landscape configuration.SCIENCE OF THE TOTAL ENVIRONMENT,694.
MLA	Bertassello, Leonardo E.,et al."Stochastic dynamics of wetlandscapes: Ecohydrological implications of shifts in hydro-climatic forcing and landscape configuration".SCIENCE OF THE TOTAL ENVIRONMENT 694(2019).