Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 0140-1963 |
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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