Arid
DOI10.1016/j.jaridenv.2013.02.004
Root patterns and hydrogeomorphic niches of riparian plants in the American Southwest
Stromberg, J. C.
通讯作者Stromberg, J. C.
来源期刊JOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
出版年2013
卷号94页码:1-9
英文摘要

Root depth influences plant distribution and function but has been little studied in dryland riparian zones. Using values from literature and excavations, this study examined rooting patterns for 125 riparian species of southwestern USA and asked if maximum root depth varies with 1) moisture affinity, 2) growth habit, 3) flowering season, and 4) exotic vs. native status. Root depth varied with all factors analyzed. Hydroriparian species had shallower roots than mesoriparian and xeroriparian species. Annuals had shallower roots than perennials, and shrubs had deeper roots than trees. Hydroriparian perennials and cool-season annuals had the shallowest roots; xeroriparian shrubs had the deepest. Plants varied widely in root depth as well as in root length (near surface laterals) and root:shoot ratios. This wide range is typical of ecosystems that have many water sources, with each rooting pattern being adaptive in a different hydrogeomorphic setting. Exotic species showed trait divergence as evidenced by greater rooting depths. There were many data gaps, with several species having no rooting data. There is a need for site-based studies of rooting patterns in dryland riparian zones to more accurately document hydrogeomorphic niches and predict changes in plant distributions. (C) 2013 Elsevier Ltd. All rights reserved.


英文关键词Arid Exotic species Phreatophyte Riparian River Root Vegetation Wetland
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000318838100001
WOS关键词CHIHUAHUAN DESERT ; WATER-TABLE ; HYDRAULIC REDISTRIBUTION ; GLOBAL-SCALE ; PHREATOPHYTIC VEGETATION ; REGULATED RIVERS ; SONORAN DESERT ; GREAT-BASIN ; DEPTH ; COMMUNITY
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
来源机构Arizona State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/178060
作者单位(1)Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA
推荐引用方式
GB/T 7714
Stromberg, J. C.. Root patterns and hydrogeomorphic niches of riparian plants in the American Southwest[J]. Arizona State University,2013,94:1-9.
APA Stromberg, J. C..(2013).Root patterns and hydrogeomorphic niches of riparian plants in the American Southwest.JOURNAL OF ARID ENVIRONMENTS,94,1-9.
MLA Stromberg, J. C.."Root patterns and hydrogeomorphic niches of riparian plants in the American Southwest".JOURNAL OF ARID ENVIRONMENTS 94(2013):1-9.
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