Arid
DOI10.1890/140163
Connectivity in dryland landscapes: shifting concepts of spatial interactions
Okin, Gregory S.1; Moreno-de las Heras, Mariano2; Saco, Patricia M.3; Throop, Heather L.4; Vivoni, Enrique R.5; Parsons, Anthony J.6; Wainwright, John2; Peters, Debra P. C.7
通讯作者Okin, Gregory S.
来源期刊FRONTIERS IN ECOLOGY AND THE ENVIRONMENT
ISSN1540-9295
EISSN1540-9309
出版年2015
卷号13期号:1页码:20-27
英文摘要

Dry land ecosystems are often characterized by patchy vegetation and exposed soil. This structure enhances transport of soil resources and seeds through the landscape (primarily by wind and water, but also by animals), thus emphasizing the importance of connectivity - given its relation to the flow of these materials - as a component of dryland ecosystem function. We argue that, as with the fertile-islands conceptual model before it, the concept of connectivity explains many phenomena observed in drylands. Further, it-serves as an organizing-principle-to understand dryland structure and function at scales from individual plants to entire landscapes. The concept of connectivity also helps to organize thinking about interactions among processes occurring at different scales, such as when processes at one scale are overridden by processes at another. In these cases, we suggest that state change occurs when fine-scale processes fail to adjust to new external conditions through resource use or redistribution at the finer scale. The connectivity framework has practical implications for land management, especially with respect to decision making concerning the scale and location of agricultural production or habitat restoration in the world’s drylands.


类型Article
语种英语
国家USA ; England ; Australia
收录类别SCI-E
WOS记录号WOS:000348974000004
WOS关键词PLANT-SOIL INTERACTIONS ; HYDROLOGICAL CONNECTIVITY ; SEMIARID LANDSCAPES ; SHRUB ENCROACHMENT ; VEGETATION COVER ; LAND DEGRADATION ; WIND EROSION ; PATTERNS ; SCALE ; DESERTIFICATION
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
来源机构Arizona State University ; New Mexico State University ; University of California, Los Angeles
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/187355
作者单位1.Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90024 USA;
2.Univ Durham, Dept Geog, Durham, England;
3.Univ Newcastle, Sch Engn, Callaghan, NSW 2308, Australia;
4.New Mexico State Univ, Dept Biol, Las Cruces, NM 88003 USA;
5.Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ USA;
6.Univ Sheffield, Dept Geog, Sheffield S10 2TN, S Yorkshire, England;
7.New Mexico State Univ, USDA ARS, Las Cruces, NM 88003 USA
推荐引用方式
GB/T 7714
Okin, Gregory S.,Moreno-de las Heras, Mariano,Saco, Patricia M.,et al. Connectivity in dryland landscapes: shifting concepts of spatial interactions[J]. Arizona State University, New Mexico State University, University of California, Los Angeles,2015,13(1):20-27.
APA Okin, Gregory S..,Moreno-de las Heras, Mariano.,Saco, Patricia M..,Throop, Heather L..,Vivoni, Enrique R..,...&Peters, Debra P. C..(2015).Connectivity in dryland landscapes: shifting concepts of spatial interactions.FRONTIERS IN ECOLOGY AND THE ENVIRONMENT,13(1),20-27.
MLA Okin, Gregory S.,et al."Connectivity in dryland landscapes: shifting concepts of spatial interactions".FRONTIERS IN ECOLOGY AND THE ENVIRONMENT 13.1(2015):20-27.
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