Wide-area estimates of stand structure and water use of tamarix spp. on the lower colorado river: Implications for restoration and water management projects

Pamela L. Nagler, Edward P. Glenn, Kamel Didan, John Osterberg, Fiona Jordan, Jack Cunningham

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

Tamarix spp. removal has been proposed to salvage water and allow native vegetation to recolonize western U.S. riparian corridors. We conducted wide-area studies on the Lower Colorado River to answer some of the scientific questions about Tamarix water use and the consequences of removal, combining ground surveys with remote sensing methods. Tamarix stands had moderate rates of evapotranspiration (ET), based on remote sensing estimates, averaging 1.1 m/yr, similar to rates determined for other locations on the river and other rivers. Leaf area index values were also moderate, and stands were relatively open, with areas of bare soil interspersed within stands. At three Tamarix sites in the Cibola National Wildlife Refuge, groundwater salinity at the site nearest to the river (200 m) was relatively low (circa 2,250 mg/L) and was within 3 m of the surface. However, 750 and 1,500 m from the river, the groundwater salinity was 5,000-10,000 mg/L due to removal of water by the Tamarix stands. Despite the high groundwater salinity, the sites away from the river did not have saline surface soils. Only 1% of the mean annual river flow is lost to Tamarix ET on the Lower Colorado River in the United States, and the opportunities for water salvage through Tamarix removal are constrained by its modest ET rates. A possible alternative to Tamarix removal is to intersperse native plants among the stands to improve the habitat value of the riparian zone.

Original languageEnglish (US)
Pages (from-to)136-145
Number of pages10
JournalRestoration Ecology
Volume16
Issue number1
DOIs
StatePublished - Mar 2008

Fingerprint

Tamarix
Colorado River
stand structure
water management
water use
river
rivers
water
evapotranspiration
groundwater
salinity
riparian areas
remote sensing
riparian zone
bare soil
restoration
project
river flow
leaf area index
refuge

Keywords

  • Populus
  • Prosopis
  • Revegetation
  • Riparian
  • Salix
  • Tamarix
  • Water salvage

ASJC Scopus subject areas

  • Ecology

Cite this

Wide-area estimates of stand structure and water use of tamarix spp. on the lower colorado river : Implications for restoration and water management projects. / Nagler, Pamela L.; Glenn, Edward P.; Didan, Kamel; Osterberg, John; Jordan, Fiona; Cunningham, Jack.

In: Restoration Ecology, Vol. 16, No. 1, 03.2008, p. 136-145.

Research output: Contribution to journalArticle

Nagler, Pamela L. ; Glenn, Edward P. ; Didan, Kamel ; Osterberg, John ; Jordan, Fiona ; Cunningham, Jack. / Wide-area estimates of stand structure and water use of tamarix spp. on the lower colorado river : Implications for restoration and water management projects. In: Restoration Ecology. 2008 ; Vol. 16, No. 1. pp. 136-145.
@article{e01bab847bc44d35b55422c20e4bfaca,
title = "Wide-area estimates of stand structure and water use of tamarix spp. on the lower colorado river: Implications for restoration and water management projects",
abstract = "Tamarix spp. removal has been proposed to salvage water and allow native vegetation to recolonize western U.S. riparian corridors. We conducted wide-area studies on the Lower Colorado River to answer some of the scientific questions about Tamarix water use and the consequences of removal, combining ground surveys with remote sensing methods. Tamarix stands had moderate rates of evapotranspiration (ET), based on remote sensing estimates, averaging 1.1 m/yr, similar to rates determined for other locations on the river and other rivers. Leaf area index values were also moderate, and stands were relatively open, with areas of bare soil interspersed within stands. At three Tamarix sites in the Cibola National Wildlife Refuge, groundwater salinity at the site nearest to the river (200 m) was relatively low (circa 2,250 mg/L) and was within 3 m of the surface. However, 750 and 1,500 m from the river, the groundwater salinity was 5,000-10,000 mg/L due to removal of water by the Tamarix stands. Despite the high groundwater salinity, the sites away from the river did not have saline surface soils. Only 1{\%} of the mean annual river flow is lost to Tamarix ET on the Lower Colorado River in the United States, and the opportunities for water salvage through Tamarix removal are constrained by its modest ET rates. A possible alternative to Tamarix removal is to intersperse native plants among the stands to improve the habitat value of the riparian zone.",
keywords = "Populus, Prosopis, Revegetation, Riparian, Salix, Tamarix, Water salvage",
author = "Nagler, {Pamela L.} and Glenn, {Edward P.} and Kamel Didan and John Osterberg and Fiona Jordan and Jack Cunningham",
year = "2008",
month = "3",
doi = "10.1111/j.1526-100X.2008.00356.x",
language = "English (US)",
volume = "16",
pages = "136--145",
journal = "Restoration Ecology",
issn = "1061-2971",
publisher = "Wiley-Blackwell",
number = "1",

}

TY - JOUR

T1 - Wide-area estimates of stand structure and water use of tamarix spp. on the lower colorado river

T2 - Implications for restoration and water management projects

AU - Nagler, Pamela L.

AU - Glenn, Edward P.

AU - Didan, Kamel

AU - Osterberg, John

AU - Jordan, Fiona

AU - Cunningham, Jack

PY - 2008/3

Y1 - 2008/3

N2 - Tamarix spp. removal has been proposed to salvage water and allow native vegetation to recolonize western U.S. riparian corridors. We conducted wide-area studies on the Lower Colorado River to answer some of the scientific questions about Tamarix water use and the consequences of removal, combining ground surveys with remote sensing methods. Tamarix stands had moderate rates of evapotranspiration (ET), based on remote sensing estimates, averaging 1.1 m/yr, similar to rates determined for other locations on the river and other rivers. Leaf area index values were also moderate, and stands were relatively open, with areas of bare soil interspersed within stands. At three Tamarix sites in the Cibola National Wildlife Refuge, groundwater salinity at the site nearest to the river (200 m) was relatively low (circa 2,250 mg/L) and was within 3 m of the surface. However, 750 and 1,500 m from the river, the groundwater salinity was 5,000-10,000 mg/L due to removal of water by the Tamarix stands. Despite the high groundwater salinity, the sites away from the river did not have saline surface soils. Only 1% of the mean annual river flow is lost to Tamarix ET on the Lower Colorado River in the United States, and the opportunities for water salvage through Tamarix removal are constrained by its modest ET rates. A possible alternative to Tamarix removal is to intersperse native plants among the stands to improve the habitat value of the riparian zone.

AB - Tamarix spp. removal has been proposed to salvage water and allow native vegetation to recolonize western U.S. riparian corridors. We conducted wide-area studies on the Lower Colorado River to answer some of the scientific questions about Tamarix water use and the consequences of removal, combining ground surveys with remote sensing methods. Tamarix stands had moderate rates of evapotranspiration (ET), based on remote sensing estimates, averaging 1.1 m/yr, similar to rates determined for other locations on the river and other rivers. Leaf area index values were also moderate, and stands were relatively open, with areas of bare soil interspersed within stands. At three Tamarix sites in the Cibola National Wildlife Refuge, groundwater salinity at the site nearest to the river (200 m) was relatively low (circa 2,250 mg/L) and was within 3 m of the surface. However, 750 and 1,500 m from the river, the groundwater salinity was 5,000-10,000 mg/L due to removal of water by the Tamarix stands. Despite the high groundwater salinity, the sites away from the river did not have saline surface soils. Only 1% of the mean annual river flow is lost to Tamarix ET on the Lower Colorado River in the United States, and the opportunities for water salvage through Tamarix removal are constrained by its modest ET rates. A possible alternative to Tamarix removal is to intersperse native plants among the stands to improve the habitat value of the riparian zone.

KW - Populus

KW - Prosopis

KW - Revegetation

KW - Riparian

KW - Salix

KW - Tamarix

KW - Water salvage

UR - http://www.scopus.com/inward/record.url?scp=40849102547&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=40849102547&partnerID=8YFLogxK

U2 - 10.1111/j.1526-100X.2008.00356.x

DO - 10.1111/j.1526-100X.2008.00356.x

M3 - Article

AN - SCOPUS:40849102547

VL - 16

SP - 136

EP - 145

JO - Restoration Ecology

JF - Restoration Ecology

SN - 1061-2971

IS - 1

ER -