Stem-Diameter Age Relationships of Tamarix ramosissima in Central Utah

Brotherson, Jack D.; Carman, John G.; Szyska, Lee A.

doi:10.2307/3898712

Cited by 35 publications

(45 citation statements)

References 10 publications

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“…In contrast, tamarisk and Russian olive seeds have longer periods of seed dispersal and viability than cottonwood and willow (Cooper et al, 1999;Katz and Shafroth, 2003). Mature tamarisk and Russian olive plants can tolerate long periods without available ground water, whereas native cottonwood and willow cannot (Brotherson and Winkel, 1986;Katz and Shafroth, 2003). The formation of interspecific hybrids of Tamarix spp.…”

Section: Introductionmentioning

confidence: 99%

Drivers of Riparian Tree Invasion on a Desert Stream

Reynolds

Cooper

Hobbs

2012

River Research & Apps

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Understanding mechanisms of exotic species' invasions is essential to managing riparian landscapes throughout the world. In the southwestern USA, the two most dominant invaders of riparian habitats are the exotic tree species tamarisk (Tamarix ramosissima, Tamarix chinensis, and their hybrids) and Russian olive (Elaeagnus angustifolia). These plants were introduced around 1900, and their success may be facilitated by river regulation, river channel changes, and precipitation patterns. We hypothesized that riparian invasion in Canyon de Chelly, Arizona, was initiated by a change point event such as plantings, dam construction, or channel incision and that establishment near a change point was tied to flood events. We aged tamarisk, Russian olive, and native cottonwood trees from study sites in Canyon de Chelly and used tree ring analysis to determine the year of establishment and the elevation of the germination point relative to the channel. We used Bayesian Poisson regression and information theoretics to identify change points and precipitation variables driving annual tree establishment. We found that most tamarisk and Russian olive trees established in the late 1980s, and most cottonwoods established in 1930-1950 and 1980-2000. Regression models indicated that change points occurred in 1983 for Russian olive and 1988 for tamarisk, and precipitation was important for establishment. Although plantings and river regulation probably played a role in tree invasion, our results suggest that these species required precipitation and stream channel change for widespread establishment in Canyon de Chelly. The factors driving riparian invasions may not be those often associated with degraded rivers, such as altered hydrographs and land management changes, thus requiring analyses of the full range of ecological and physical processes.

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Section: Introductionmentioning

confidence: 99%

Drivers of Riparian Tree Invasion on a Desert Stream

Reynolds

Cooper

Hobbs

2012

River Research & Apps

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“…Genotype in saltcedar that gives it the capability to exploit a wide spectrum of habitats [13]. Total Petroleum Hydrocarbons (TPH) values of Tamarix leaves were the highest 1930-939 mg/kg whereas the stem comprises 566-563 mg/kg.…”

Section: Tamarixmentioning

confidence: 99%

Phytoremediation for Hazardous Liquid Industrial Waste Using Six Famous Trees Species in Al Wafrah, Kuwait

Al-Ibrahim¹,

Mohammad²

2017

J Bioremediat Biodegrad

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IntroductionThe State of Kuwait is located on the Arabian Plate between Precambrian shield to the west and Zagros fold belt towards northeast, having an area of about 17,818 Km 2 and it lies between latitudes 28°30' and 30°05' N, and longitude 47°30' and 48°36' E. Kuwait considered one of the arid regions that are primarily described by her very long period of summer season that is dry and very hot. Summer season starts from the end of March to the end of October. Between 30°C to 45°C is the range of temperature that exceeds sometimes 54°C during daytime in August. Kuwait's winter season is short, cold and relatively wet. Winter starts from early December to mid-February [1,2].Vegetation of Kuwait shows a great geographical variation in spite of the short distance from east to west. Variation in microclimate, relief, geomorphology, soil and land use made Kuwait vegetation cover shows a great geographical diversity. Furthermore, sedimentation of windtransported sand affected by vegetation, which plays an important role. Hence, it acts as a barrier that faces wind driven sand and changes surface morphology or roughness over large areas.The study area is located along Wafra/Mina Abdullah road at 14 Km south of Kuwait (Figure 1). The area is about 1 Km 2 and it is used to receive over than 4500 m 3 daily of untreated sewage and industrial hazardous liquid waste in one of the largest unlined evaporation ponds in the state of Kuwait. The study area now is completely rehabilitated and planted by several types of plants in four main sectors comprises 45000 trees.Recently published research has indicated that vegetation may play an important role in the bioremediation of toxic organic chemicals.Establishing a vegetation cover on relatively polluted hazardous waste sites might be an efficient way and low maintenance method to waste remediation. Plants Usage for remediation may be especially appropriate for soil polluted by organic chemicals especially of a depth less than 2 m 3 . Interaction between plant roots and rhizosphere microflora significantly enhances degradation of hazardous organic compounds in contaminated soil. AbstractMetal concentrations in soils are locally quite high in Kuwait due to many reasons such as massive oil spills during the gulf war in 1991 as well as direct dump for untreated sewage and hydrocarbon. Phytoremediation may offer a possible solution to this problem because it treats the soils through the use of plants even without the demand of removing the contaminated material and disposing it elsewhere. This research project focused on the best contribution of phytoremediating the area between six types of plant tree species collected (Conocarpus, Tamarix, Phoenix, Rhamnus, Vitex agnus-castus and Salix) from Wafra 14 Km area and another six reference trees from the same plant species collected for correlation from South Khitan and Rigee areas. The samples divided into three sample categories (leaves, stem, and soil). From the chemical analysis, it was found that phytoremediation is a unique pro...

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“…Brotherson et al (1983) developed age-stem diameter relationships for 8 tree species in the Navajo National Monument, Arizona. These species included: box elder maple ( In another study, Brotherson et al (1984) investigated age-stem diameter relationships of salt cedar in central Utah to assess invasion dynamics. Brotherson et al (1980) also developed age-stem diameter relationships for 2 species of mountain mahogany (Cercocarpus montanus [Raf.…”

Section: T R I D E N T a T A Mountain Big Sagebrush (A T R I D E mentioning

confidence: 99%

Age-stem diameter relationships of big sagebrush and their management implications

Perryman¹,

Olson²

2000

REM

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Decisions to control big sagebrush (Artemisia tridentata Nutt.) on North American rangelands are traditionally based on morphological characteristics (e.g., cover) rather than more ecologically based community successional criteria. Big sagebrush stand age is a critical component for evaluating successional status, but has been difficult to obtain under field conditions. Assessing big sagebrush plant age based on stem diameter would provide resource managers with an efficient field tool to make management decisions based on ecological principles. For each of 3 subspecies of big sagebrush, between 75-80 stem cross-sections were collected within each of 9 stands situated at 3 regionally dispersed locations across Wyoming. Maximum basal stem diameters were measured and plant age determined from annual growth-ring assessments. Regression analysis (95% confidence interval) relating maximum basal stem diameter to plant age produced coefficients of determination ( ssp. t r i d e n t a t a, mountain big sagebrush (A. t r i d e n t a t a subsp. v a s e y a n a [Rydb.] Beetle), and Wyoming big sagebrush (A. t r i d e n t a t a subsp. w y o m i n g e n s i sBeetle and Young) are dominant constituents of many rangeland communities. Intensive livestock grazing during the first half of this century, periodic drought and recent wildfire suppression efforts have allowed big sagebrush to dominate more than 100 million acres of North American rangelands (Miller et al. 1994, Pieper 1994. Decisions to control big sagebrush are generally based on either the subjective condition of "when sagebrush stands are dense and tall" or the more quantitative condition "when sagebrush makes up more than one-half of the total plant cover," (Pechanec et al. 1954).Recently, several rangeland ecologists have advocated the development and implementation of successional models that contain the concepts of multiple stable states, thresholds, and/or transition states, allowing opportunistic management strategies to be utilized in the manipulation of plant communities (Smith 1978, Archer et al. 1988, Westoby et al. 1989, Friedel 1991 ResumenLas decisiones de controlar la artemisa grande (Artemisia tridentata Nutt.) en las praderas norte americanos tradicionalmente están basadas en las características morfológicas (e.g., la tapa) más bien que el criterio comunitario sucesivo que es más basada en la ecología. La edad situada de la artemisa grande es un componente crítico para evaluar el estatus sucesivo, pero ha sido difí-cil en obtener bajo de las condiciones del campo. Amillarar la edad de la artemisa grande a base del diámetro del tallo les proveería a los gerentes de recursos con una ventaja eficaz para hacer decisiones basadas en los principales ecológicos. Por cada una de las 3 subespecies de la artemisa grande, fueron coleccionados entre 75-80 tallos cuadriculados dentro de cada de las 9 plataformas situadas en 3 lugares regionalmente dispersados por Wyoming. Los diámetros máximos de los tallos basales fueron medidos y la edad de la plant...

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Stem-Diameter Age Relationships of Tamarix ramosissima in Central Utah

Cited by 35 publications

References 10 publications

Drivers of Riparian Tree Invasion on a Desert Stream

Drivers of Riparian Tree Invasion on a Desert Stream

Phytoremediation for Hazardous Liquid Industrial Waste Using Six Famous Trees Species in Al Wafrah, Kuwait

Age-stem diameter relationships of big sagebrush and their management implications

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