Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2011.11.025 |
Roles of saltcedar (Tamarix spp.) and capillary rise in salinizing a non-flooding terrace on a flow-regulated desert river | |
Glenn, E. P.1; Morino, K.2; Nagler, P. L.3; Murray, R. S.1; Pearlstein, S.1; Hultine, K. R.4 | |
通讯作者 | Glenn, E. P. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2012 |
卷号 | 79页码:56-65 |
英文摘要 | Tamarix spp. (saltcedar) secretes salts and has been considered to be a major factor contributing to the salinization of river terraces in western US riparian zones. However, salinization can also occur from the capillary rise of salts from the aquifer into the vadose zone. We investigated the roles of saltcedar and physical factors in salinizing the soil profile of a non-flooding terrace at sites on the Cibola National Wildlife Refuge on the Lower Colorado River, USA. We placed salt traps under and between saltcedar shrubs and estimated the annual deposition rate of salts from saltcedar. These were then compared to the quantities and distribution on of salts in the soil profile. Dense stands of saltcedar deposited 0.159 kg m(-2) yr(-1) of salts to the soil surface. If this rate was constant since seasonal flooding ceased in 1938 and all of the salts were retained in the soil profile, they could account for 11.4 kg m(-2) of salt, about 30% of total salts in the profile today. Eliminating saltcedar would not necessarily reduce salts, because vegetation reduces the upward migration of salts in bulk flow from the aquifer. The densest saltcedar stand had the lowest salt levels in the vadose zone in this study. (C) 2011 Elsevier Ltd. All rights reserved. |
英文关键词 | Arid-zone rivers Riparian processes Riparian restoration Salt exudation Tamarisk |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000300469900008 |
WOS关键词 | LOWER COLORADO RIVER ; SOUTHWESTERN UNITED-STATES ; WATER-USE ; SALT ; EVAPOTRANSPIRATION ; HALOPHYTES ; FRINGE ; ECOPHYSIOLOGY ; CONSEQUENCES ; FLUCTUATIONS |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | University of Arizona ; United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/173219 |
作者单位 | 1.Univ Arizona, Environm Res Lab, Tucson, AZ 85706 USA; 2.Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85706 USA; 3.US Geol Survey, SW Biol Sci Ctr, Sonoran Desert Res Stn, Tucson, AZ USA; 4.Desert Bot Garden, Phoenix, AZ USA |
推荐引用方式 GB/T 7714 | Glenn, E. P.,Morino, K.,Nagler, P. L.,et al. Roles of saltcedar (Tamarix spp.) and capillary rise in salinizing a non-flooding terrace on a flow-regulated desert river[J]. University of Arizona, United States Geological Survey,2012,79:56-65. |
APA | Glenn, E. P.,Morino, K.,Nagler, P. L.,Murray, R. S.,Pearlstein, S.,&Hultine, K. R..(2012).Roles of saltcedar (Tamarix spp.) and capillary rise in salinizing a non-flooding terrace on a flow-regulated desert river.JOURNAL OF ARID ENVIRONMENTS,79,56-65. |
MLA | Glenn, E. P.,et al."Roles of saltcedar (Tamarix spp.) and capillary rise in salinizing a non-flooding terrace on a flow-regulated desert river".JOURNAL OF ARID ENVIRONMENTS 79(2012):56-65. |
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