Characteristics and Control of Camelthorn

Kerr, Harold D.; Robocker, W. C.; Mizik, T. J.

doi:10.2307/4041160

Cited by 13 publications

(7 citation statements)

References 13 publications

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“…A very efficient hydraulic conductance together with high rates of biomass production might also be the basis of the formation of extensive clonal stands whose ramets d at least at the early stages of formation d are interconnected by long subterranean shoots Kerr et al, 1965), Australia (Parsons and Guthbertson, 2001) and South Africa, is based on similar features. The maximum cross-sectional area of A. sparsifolia conduits (up to 44 000 mm 2 ) is in the same range as that of ring-porous tree species of Mediterranean or temperate regions such as Castanea sativa (García-González and Fonti, 2006), Central-European Quercus species (Fonti et al, 2009;Thomas et al, 2006b) or Ulmus minor (Solla and Gil, 2002).…”

Section: Discussionmentioning

confidence: 97%

Xylem anatomy and hydraulic conductivity of three co-occurring desert phreatophytes

Rzepecki

Zeng

Thomas

2011

Journal of Arid Environments

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Section: Discussionmentioning

confidence: 97%

Xylem anatomy and hydraulic conductivity of three co-occurring desert phreatophytes

Rzepecki

Zeng

Thomas

2011

Journal of Arid Environments

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“…Although A. alhagi n. sp. is unlikely to reduce densities of the weed in the short term, a reduction in seed set of plants in the introduced range would limit the long distance dispersal of this weed through various abiotic (wind and water) (Ambasht 1963) and biotic (cattle, sheep, horses) (Kerr et al 1965) factors.…”

Section: Discussionmentioning

confidence: 99%

A new Aceria species (Acari:Trombidiformes: Eriophyoidea) from West Asia, a potential biological control agent for the invasive weed camelthorn, Alhagi maurorum Medik. (Leguminosae)

et al. 2018

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A new species of eriophyoid mite Aceria alhagi n. sp. inhabiting the weed Alhagi maurorum Medik., is described from the type locality in Iran, but it was also collected from Uzbekistan, Turkey and Armenia. This mite causes changes of the leaves and inflorescence. Infested plants develop cauliflower-like galls on the inflorescence and leaves deforming the reproductive structures and inhibiting seed production. The potential reduction in seed set suggests that this mite could constitute a potential biological control agent against this noxious weed. To investigate intraspecific variability between A. alhagi n. sp. populations from Iran, Turkey and Armenia, we analysed molecular sequences of the mitochondrial cytochrome oxidase subunit I (mtCOI). These results indicated that there are no significant intraspecific divergences among populations of A.alhagi n. sp. from the five different localities in three West Asia countries. This finding can be used in the future research of certain mite populations as biological control agent.

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“…These are not unusual depths for phreatophytic plants Jackson et al 1996). In particular, Alhagi is able to tap into a water table up to 15 m below the soil surface Kerr 1963;Kerr et al 1965) Permanent access to groundwater would explain the high production in a virtually dry soil in a region that is practically without precipitation. This situation is not uncommon in deserts.…”

Section: Biomass and Production In Relation To Available Watermentioning

confidence: 98%

Production of Perennial Vegetation in an Oasis-desert Transition Zone in NW China - Allometric Estimation, and Assessment of Flooding and Use Effects

Gries

Foetzki

Arndt³

et al. 2005

Plant Ecol

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River oases at the southern fringe of the Taklamakan desert in NW China are surrounded by belts of spontaneous vegetation that protect the oases from sand drift. As an important source of forage, fuel and construction wood, this foreland vegetation is also a component part of the agricultural system of the oases but has been, and still is, destroyed through overuse. Within a broader study that aimed to provide a basis for a sustainable management of this foreland vegetation, biomass and production were studied in four vegetation types dominated either by Alhagi sparsifolia, Calligonum caput-medusae, Populus euphratica, or Tamarix ramosissima that were thought to occur under different regimes of natural flooding in the foreland of Qira (Cele) oasis, Xinjiang, NW China. Shoot biomass components were closely correlated to basal area (Calligonum, Populus, Tamarix) or shrub volume and projection area (Alhagi), enabling non-destructive estimation of stand biomass from shoot diameters or shrub dimensions with sufficient precision using allometric regression equations. Relationships between shoot basal area and biomass of the woody species (Calligonum, Populus and Tamarix) agreed with predictions by a theoretical model of plant vascular systems, suggesting that they are determined by hydraulic and mechanical requirements for shoot architecture. Average aboveground biomass densities of typical stands in late summer were 2.97 Mg/ha in Alhagi, 3.6 Mg/ha in a row plantation and 10.9 Mg/ha in homogenous stands of Calligonum, 22-29 Mg/ha in 22 year-old Populus forests and 1.9-3.1 Mg/ha in Tamarix-dominated vegetation. Annual aboveground production including wood and assimilation organs ranged from 2.11 to 11.3 Mg/ha in plantations of Calligonum, 3.17 to 6.12 Mg/ha in Populus, and 1.55 to 1.74 Mg/ha (based on total ground area) or 3.10 to 7.15 Mg/ha (in homogenous stands) in Tamarix. Production of Alhagi is equal to peak biomass. A thinning treatment simulating use by the local population enhanced productivity of Calligonum, Populus and Tamarix. A complete harvest of Alhagi in late August decreased production in the following year. An artificial flood irrigation treatment did not sufficiently increase soil water content except in the uppermost layer and had no clear beneficial effect on growth of the four species and even a negative effect on Alhagi, which was due to increased competition from annual species. As biomass and production with or without artificial irrigation were much higher than values expected for rain-fed desert vegetation at a mean annual precipitation of 35 mm, it is concluded that the existence of all vegetation types studied is probably based on permanent access to groundwater and that natural floods or precipitation do not contribute to their Plant Ecology (2005) 181:23-43 Ó Springer 2005

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Characteristics and Control of Camelthorn

Cited by 13 publications

References 13 publications

Xylem anatomy and hydraulic conductivity of three co-occurring desert phreatophytes

Xylem anatomy and hydraulic conductivity of three co-occurring desert phreatophytes

A new Aceria species (Acari:Trombidiformes: Eriophyoidea) from West Asia, a potential biological control agent for the invasive weed camelthorn, Alhagi maurorum Medik. (Leguminosae)

Production of Perennial Vegetation in an Oasis-desert Transition Zone in NW China - Allometric Estimation, and Assessment of Flooding and Use Effects

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