The lack of precipitation and abundant phreatophytic vegetation (Meglioli et al., 2013) prevents and delays N[O.sub.3.sup.-] inputs into the aquifer, explaining the generally low concentrations of nitrate found in most of the area.
(2007): Groundwater and soil chemical changes under phreatophytic tree plantations.
(1999) showed that the phreatophytic
character of this species enables it to withstand the dry season without being exposed to severe water stress.
As for transpiration of leachate by the phreatophytic
willows, Schnoor (2002) estimates that such vegetation can transpire about 6 L [m.sup.-2] [d.sup.-1] during the growing season.
trees could be used to enhance the degradation of organochlorines such as dieldrin (Schnabel and White 2001), control leaching, and demarcate the area so that stock can be prevented from ingesting contaminated pasture or soil.
vegetation of the River Floodplain-Arroyo formation was placed in the Arroyo-Mesquite-Acacia association.
(2008), who found that growth of fine roots in phreatophytic
Populus alba was stimulated in the layer of soil just above a stationary water table.
1974) (water user salvaged water by removing phreatophytic
vegetation; could not get decree to use salvaged water free of call); Salt River Valley Water Users' Assoc.
Perturbation of floodplain hydrology resulting in the depression of floodplain water tables may also result in water stress in riparian trees and shrubs, given the phreatophytic
habit of the taxa dominating floodplain communities (Busch et al.
Further monitoring of resprouting Cercidium and Olneya will be required to determine whether these two important phreatophytic
trees will continue to survive after the fire.
The original azonal vegetation of these alluvial plains was like that of the parts that remain uncultivated, a closed or open phreatophytic
thornforest of mesquite (Prosopis glandulosa var.
Additionally, invasion of phreatophytic
salt cedar (Tamarix) in riparian zones (Gaskin and Schaal, 2002) may affect flow of streams and quality of riparian habitats (Sala et al., 1996).