A century of riparian forest expansion following extreme disturbance: Spatio-temporal change in Populus/Salix/Tamarix forests along the Upper San Pedro River, Arizona, USA

Stromberg, Juliet C.; Tluczek, Melanie; Hazelton, Andrea F.; Ajami, Hoori

doi:10.1016/j.foreco.2010.01.005

Cited by 41 publications

(33 citation statements)

References 58 publications

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“…Groundwater serves as an important resource for plant growth, survival, and distribution in these areas (Evaristo & McDonnell, 2017;Miller, Chen, Rubin, Ma, & Baldocchi, 2010;Stromberg, Tluczek, Hazelton, & Ajami, 2010). Groundwater serves as an important resource for plant growth, survival, and distribution in these areas (Evaristo & McDonnell, 2017;Miller, Chen, Rubin, Ma, & Baldocchi, 2010;Stromberg, Tluczek, Hazelton, & Ajami, 2010).…”

Section: Introductionmentioning

confidence: 99%

Responses of two desert riparian species to fluctuating groundwater depths in hyperarid areas of Northwest China

Tong

Huang

et al. 2019

Ecohydrology

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In the hyperarid region of Northwest China, frequent variations in hydrological environments present challenges to the persistence of riparian plants. The main objective of this study was to determine whether two desert riparian species (Populus euphratica and Tamarix ramosissima) differed in their water uptake patterns and ecophysiological responses to fluctuating groundwater depths (GWDs). This study was conducted in typical desert riparian ecosystems in the downstream Heihe River basin, Northwestern China, where the GWD continuously increases during growing season. Stable oxygen composition (δ 18 O) in xylem water, soil water, and groundwater, as well as leaf water potential and gas exchange were monitored. Results showed that P. euphratica used a higher ratio of soil water, whereas T. ramosissima relied more on groundwater and deep soil water. As the GWD increased during the growing season, both species modified their water use patterns, but they did so differently, P. euphratica extracted an increasing proportion of deep soil water and groundwater, whereas T. ramosissima took an increasing ratio of groundwater at critical growth stages. P. euphratica exhibited decreases in its daily maximum photosynthetic rate (A max ) and stomatal conductance (g max ) as the GWD increased, whereas those of T. ramosissima changed little. In summary, both species shift to use greater ratio of more reliable water sources with the increasing GWD, but the switching of water sources could not sufficiently compensate for the impact of drought stress on gas exchange for P. euphratica.

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Section: Introductionmentioning

confidence: 99%

Responses of two desert riparian species to fluctuating groundwater depths in hyperarid areas of Northwest China

Tong

Huang

et al. 2019

Ecohydrology

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“…Conversely, environmental flows ascertained through habitat simulation methods still persist generally based on the requirements of a single biological group, mostly fish (Acreman et al, 2009;Arthington, 2012;Tharme, 2003), and require an input from less typically monitored taxa (Gillespie et al, 2014). Accordingly, these approaches still disregard the inter-annual flow variability that rules species with longer lifecycles, like riparian vegetation, therefore lacking the long-term perspective of the riverine ecosystem (Stromberg et al, 2010). The feedbacks of these shortcomings on the riparian and aquatic communities were seldom estimated before and so, the efficiency of such approaches along with its long-term after-effects remains practically unknown.…”

Section: Introductionmentioning

confidence: 99%

Importance of considering riparian vegetation requirements for the long-term efficiency of environmental flows in aquatic microhabitats

Rivaes

Boavida

Santos

et al. 2017

Hydrol. Earth Syst. Sci.

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Abstract. Environmental flows remain biased toward the traditional biological group of fish species. Consequently, these flows ignore the inter-annual flow variability that rules species with longer lifecycles and therefore disregard the long-term perspective of the riverine ecosystem. We analyzed the importance of considering riparian requirements for the long-term efficiency of environmental flows. For that analysis, we modeled the riparian vegetation development for a decade facing different environmental flows in two case studies. Next, we assessed the corresponding fish habitat availability of three common fish species in each of the resulting riparian landscape scenarios. Modeling results demonstrated that the environmental flows disregarding riparian vegetation requirements promoted riparian degradation, particularly vegetation encroachment. Such circumstance altered the hydraulic characteristics of the river channel where flow depths and velocities underwent local changes of up to 10 cm and 40 cm s −1 , respectively. Accordingly, after a decade of this flow regime, the available habitat area for the considered fish species experienced modifications of up to 110 % when compared to the natural habitat. In turn, environmental flows regarding riparian vegetation requirements were able to maintain riparian vegetation near natural standards, thereby preserving the hydraulic characteristics of the river channel and sustaining the fish habitat close to the natural condition. As a result, fish habitat availability never changed more than 17 % from the natural habitat.

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“…These ecosystems are located between aquatic and terrestrial ecosystems as ecotones (Cartisano et al 2013) which improve soil and water quality and preserve biodiversity (Stromberg et al 2010). Populus euphratica Olivier is one of the most important components of riparian forests in Iran and creates two types of pure and mixed stands (Sepehri, Bozorgmehr 2003).…”

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Evaluation of distance methods for estimating population density in Populus euphratica Olivier natural stands (case study: Maroon riparian forests, Iran)

Basiri¹,

Moradi²,

Kiani³

et al. 2018

J. For. Sci.

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Basiri R., Moradi M., Kiani B., Maasumi Babaarabi M. (2018): Evaluation of distance methods for estimating population density in Populus euphratica Olivier natural stands (case study: Maroon riparian forests, Iran). J. For. Sci., 64: 230-244.The aim of this study was to determine the performance of distance methods in terms of accuracy, precision, bias, consumed time and sampling efficiency in the Maroon riparian forests, Iran. 40 estimators were used to evaluate the density of Populus euphratica Olivier trees in pure and mixed stands. Fifty quadrates (30 × 30 m) were established in each stand. To evaluate the accuracy, precision, bias, consumed time and efficiency of sampling techniques, relative root mean square error -RRMSE (%), coefficient of variation -CV (%), relative bias -RBIAS (%), t × RBIAS 2 , t × E 2 , where t is study time and E (%) is sampling error at a confidence level of 95%, and efficiency ratio between method j and k (Ef jk ) were used. A compound of three basic distance estimators sampling method and n-tree were the best in both stands according to all criteria for density estimation. Moreover, variable area transect by Parker (g = 3) and quadrat method were the best methods for density estimation only in pure stand, while the angle order-point-centred quarter method was superior in mixed stand. Regarding to the results, we recommend the use of compound of three basic distances (BDAV3) and basic distance-nearest neighbour (BDNN2) for density estimation of P. euphratica stands in riparian forests.

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A century of riparian forest expansion following extreme disturbance: Spatio-temporal change in Populus/Salix/Tamarix forests along the Upper San Pedro River, Arizona, USA

Cited by 41 publications

References 58 publications

Responses of two desert riparian species to fluctuating groundwater depths in hyperarid areas of Northwest China

Responses of two desert riparian species to fluctuating groundwater depths in hyperarid areas of Northwest China

Importance of considering riparian vegetation requirements for the long-term efficiency of environmental flows in aquatic microhabitats

Evaluation of distance methods for estimating population density in Populus euphratica Olivier natural stands (case study: Maroon riparian forests, Iran)

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