Ground-water surface-water interactions and long-term change in riverine riparian vegetation in the southwestern United States

Webb, Robert H.; Leake, Stanley A.

doi:10.1016/j.jhydrol.2005.07.022

Cited by 125 publications

(103 citation statements)

References 34 publications

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“…Shrub cover is variable among all sites, the lowest percentages in Aguilar Ranch, Cienega and San Juan Ranch can be due to the constant presence of cattle and the negative effect it has on shrubs [4,11,26,[52][53][54][55]. Trees cover more than 30% of the area in most sites (Figure 4), which indicates certain stability among the canopy.…”

Section: Vegetation Strata Cover For Riparian Vegetation and Desert Smentioning

confidence: 99%

Assessing Riparian Vegetation Condition and Function in Disturbed Sites of the Arid Northwestern Mexico

Cornejo-Denman

Romo-León

Castellanos

et al. 2018

Land

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Transformation or modification of vegetation distribution and structure in arid riparian ecosystems can lead to the loss of ecological function. Mexico has 101,500,000 ha of arid lands, however there is a general lack of information regarding how arid riparian ecosystems are being modified. To assess these modifications, we use eight sites in the San Miguel River (central Sonora) to analyze (1) riparian vegetation composition, structure and distribution using field sampling and remote sensing data from Unmanned Aerial Vehicles (UAV); (2) productivity (proxies), using vegetation indices derived from satellite data; and (3) variability posed by riparian vegetation and vegetation adjacent to riparian habitats. The development of a simple yet informative Anthropogenic-disturbance Index (ADI) allowed us to classify and describe each study site. We found sharp differences in vegetation composition and structure between sites due to the absence/presence of obligate-riparian species. We also report significant difference between EVI (Enhanced Vegetation Index) values for the dry season among vegetation types that develop near the edges of the river but differ in composition, suggesting that land cover changes form obligate-riparian to facultative-riparian species can lead to a loss in potential productivity. Finally, our tests suggest that sites with higher disturbance present lower photosynthetic activity.

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Section: Vegetation Strata Cover For Riparian Vegetation and Desert Smentioning

confidence: 99%

Assessing Riparian Vegetation Condition and Function in Disturbed Sites of the Arid Northwestern Mexico

Cornejo-Denman

Romo-León

Castellanos

et al. 2018

Land

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“…Pumping in groundwater increases vertical gradients and related velocities from surface water sources (Gilfedder et al 2012). Some studies report intensive withdrawal impacting not only on the capacity of other people to pump in the same resource but also on return flows from groundwater to surface water in low water period that can be reversed (Howe 2002;Webb and Leake 2006). Understanding the effects of groundwater development is essential to IGM.…”

Section: Understanding the Complexity Of Groundwater-society Interactmentioning

confidence: 99%

Disentangling the Complexity of Groundwater Dependent Social-ecological Systems

Barreteau

Caballero²,

Hamilton

et al. 2016

Integrated Groundwater Management

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Groundwater resources are part of larger social-ecological systems. In this chapter, we review the various dimensions of these complex systems in order to uncover the diversity of elements at stake in the evolution of an aquifer and the loci for possible actions to control its dynamics. Two case studies illustrate how the state of an aquifer is embedded in a web of biophysical and sociopolitical processes. We propose here a holistic view through an IGM-scape that describes the various possible pathways of evolution for a groundwater related social-ecological system. Then we describe the elements of this IGM-scape starting with physical entities and processes, including relations with surface water and quality issues. Interactions with society bring an additional layer of considerations, including decisions on groundwater abstraction, land use changes and even energy related choices. Finally we point out the policy levers for groundwater management and their possible consequences for an aquifer, taking into account the complexity of pathways opened by these levers.

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“…Some tree species have been intimately linked with access to groundwater for survival [44]. When groundwater is depleted, riparian tree species have been shown to exhibit drought-stress responses including stomatal closure, reduced transpiration and photosynthesis, reduced predawn and midday water potentials, and xylem cavitation.…”

Section: Water Conservation By Plantsmentioning

confidence: 99%

Local Level Stormwater Harvesting and Reuse: A Practical Solution to the Water Security Challenges Faced by Urban Trees

Nichols

Lucke

2015

Sustainability

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Water Sensitive Urban Design (WSUD) treatment devices are often used to restore natural drainage properties in developed catchments. WSUD can make positive contributions to the restoration of natural ecosystem processes, by supporting trees and habitats in urban areas without taking up limited urban space. This paper reports on the development and testing of a new WSUD device, the Wicking Tank. It is designed to supply sufficient volumes of water to urban trees through periods of drought via synthetic wicks from an underground storage tank to support adequate tree health. Relying on gravity fed stormwater, and the natural capillarity, adhesion, and cohesion properties of water and the process of hydraulic redistribution, water is transferred from the tank and into the rhizosphere of the tree. Water demand is controlled passively by the water potential differential across the root zone. Proof of concept testing of the Wicking Tank has shown the device to successfully draw water into soil to support the ongoing survival of a potted plant for over 20 weeks. Substantial differences are anticipated between this proof of concept test and an in-situ field trial. A field-based demonstration style version of the Wicking Tank is planned for construction and testing in 2015.

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Ground-water surface-water interactions and long-term change in riverine riparian vegetation in the southwestern United States

Cited by 125 publications

References 34 publications

Assessing Riparian Vegetation Condition and Function in Disturbed Sites of the Arid Northwestern Mexico

Assessing Riparian Vegetation Condition and Function in Disturbed Sites of the Arid Northwestern Mexico

Disentangling the Complexity of Groundwater Dependent Social-ecological Systems

Local Level Stormwater Harvesting and Reuse: A Practical Solution to the Water Security Challenges Faced by Urban Trees

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