Готові списки джерел за темами / Plant biogeochemistry

Добірка наукової літератури з теми "Plant biogeochemistry"

Автор: Grafiati
Опубліковано: 10 грудня 2022
Оновлено: 28 січня 2023

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Статті в журналах з теми "Plant biogeochemistry"

1

Mackowiak, C. L., P. R. Grossl, and B. G. Bugbee. "Biogeochemistry of Fluoride in a Plant-Solution System." Journal of Environmental Quality 32, no. 6 (November 2003): 2230–37. http://dx.doi.org/10.2134/jeq2003.2230.

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2

Murray, Andrew P., Dianne Edwards, Janet M. Hope, Christopher J. Boreham, Webber E. Booth, Robert A. Alexander, and Roger E. Summons. "Carbon isotope biogeochemistry of plant resins and derived hydrocarbons." Organic Geochemistry 29, no. 5-7 (November 1998): 1199–214. http://dx.doi.org/10.1016/s0146-6380(98)00126-0.

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3

Hinsinger, Philippe, A. Glyn Bengough, Doris Vetterlein, and Iain M. Young. "Rhizosphere: biophysics, biogeochemistry and ecological relevance." Plant and Soil 321, no. 1-2 (January 21, 2009): 117–52. http://dx.doi.org/10.1007/s11104-008-9885-9.

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4

Poulter, B., P. Ciais, E. Hodson, H. Lischke, F. Maignan, S. Plummer, and N. E. Zimmermann. "Plant functional type mapping for earth system models." Geoscientific Model Development 4, no. 4 (November 16, 2011): 993–1010. http://dx.doi.org/10.5194/gmd-4-993-2011.

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Abstract. The sensitivity of global carbon and water cycling to climate variability is coupled directly to land cover and the distribution of vegetation. To investigate biogeochemistry-climate interactions, earth system models require a representation of vegetation distributions that are either prescribed from remote sensing data or simulated via biogeography models. However, the abstraction of earth system state variables in models means that data products derived from remote sensing need to be post-processed for model-data assimilation. Dynamic global vegetation models (DGVM) rely on the concept of plant functional types (PFT) to group shared traits of thousands of plant species into usually only 10–20 classes. Available databases of observed PFT distributions must be relevant to existing satellite sensors and their derived products, and to the present day distribution of managed lands. Here, we develop four PFT datasets based on land-cover information from three satellite sensors (EOS-MODIS 1 km and 0.5 km, SPOT4-VEGETATION 1 km, and ENVISAT-MERIS 0.3 km spatial resolution) that are merged with spatially-consistent Köppen-Geiger climate zones. Using a beta (ß) diversity metric to assess reclassification similarity, we find that the greatest uncertainty in PFT classifications occur most frequently between cropland and grassland categories, and in dryland systems between shrubland, grassland and forest categories because of differences in the minimum threshold required for forest cover. The biogeography-biogeochemistry DGVM, LPJmL, is used in diagnostic mode with the four PFT datasets prescribed to quantify the effect of land-cover uncertainty on climatic sensitivity of gross primary productivity (GPP) and transpiration fluxes. Our results show that land-cover uncertainty has large effects in arid regions, contributing up to 30% (20%) uncertainty in the sensitivity of GPP (transpiration) to precipitation. The availability of PFT datasets that are consistent with current satellite products and adapted for earth system models is an important component for reducing the uncertainty of terrestrial biogeochemistry to climate variability.
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Poulter, B., P. Ciais, E. Hodson, H. Lischke, F. Maignan, S. Plummer, and N. E. Zimmermann. "Plant functional type mapping for earth system models." Geoscientific Model Development Discussions 4, no. 3 (August 26, 2011): 2081–121. http://dx.doi.org/10.5194/gmdd-4-2081-2011.

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Abstract. The sensitivity of global carbon and water cycling to climate variability is coupled directly to land cover and the distribution of vegetation. To investigate biogeochemistry-climate interactions, earth system models require a representation of vegetation distributions that are either prescribed from remote sensing data or simulated via biogeography models. However, the abstraction of earth system state variables in models means that data products derived from remote sensing need to be post-processed for model-data assimilation. Dynamic global vegetation models (DGVM) rely on the concept of plant functional types (PFT) to group shared traits of thousands of plant species into just several classes. Available databases of observed PFT distributions must be relevant to existing satellite sensors and their derived products, and to the present day distribution of managed lands. Here, we develop four PFT datasets based on land-cover information from three satellite sensors (EOS-MODIS 1 km and 0.5 km, SPOT4-VEGETATION 1 km, and ENVISAT-MERIS 0.3 km spatial resolution) that are merged with spatially-consistent Köppen-Geiger climate zones. Using a beta (β) diversity metric to assess reclassification similarity, we find that the greatest uncertainty in PFT classifications occur most frequently between cropland and grassland categories, and in dryland systems between shrubland, grassland and forest categories because of differences in the minimum threshold required for forest cover. The biogeography-biogeochemistry DGVM, LPJmL, is used in diagnostic mode with the four PFT datasets prescribed to quantify the effect of land-cover uncertainty on climatic sensitivity of gross primary productivity (GPP) and transpiration fluxes. Our results show that land-cover uncertainty has large effects in arid regions, contributing up to 30 % (20 %) uncertainty in the sensitivity of GPP (transpiration) to precipitation. The availability of plant functional type datasets that are consistent with current satellite products and adapted for earth system models is an important component for reducing the uncertainty of terrestrial biogeochemistry to climate variability.
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6

Sarmiento, Jorge L., and Michael Bender. "Carbon biogeochemistry and climate change." Photosynthesis Research 39, no. 3 (March 1994): 209–34. http://dx.doi.org/10.1007/bf00014585.

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7

Isagaliev, Murodjon, Evgeny Abakumov, Avazbek Turdaliev, Muzaffar Obidov, Mavlonjon Khaydarov, Khusnida Abdukhakimova, Tokhirjon Shermatov, and Iskandar Musaev. "Capparis spinosa L. Cenopopulation and Biogeochemistry in South Uzbekistan." Plants 11, no. 13 (June 21, 2022): 1628. http://dx.doi.org/10.3390/plants11131628.

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The article provides an analysis of the cenopopulation and tissues element composition of the medicinal caper plant Capparis spinosa L. distributed on Calcisols formed on eroded alluvial-proluvial gravel textured rocks in the south of the Fergana Valley (Uzbekistan, Central Asia). The predominance of immature plants in the cenopopulation was detected in the Arsif hills massive, and quantitative indicators of micronutrients in the vegetative and generative organs of C. spinosa L. were determined. The study of biomorphological characteristics of the plant during the growing season (April-October) was carried out in the identified 10 observational experimental field populations. The cenopopulation dynamics and plant development patterns of Capparis spinosa L. were characterized for environmental conditions of south Uzbekistan for the first time. Soil, plant element analysis was performed by neutron-activation method. In this case, the samples were irradiated in a nuclear reactor with a neutron flux of 5 × 1013 neutrons/cm2 s, and their quantities were determined in accordance with the half-life of chemical elements. It has also been compared with research materials conducted by world scientists on the importance and pharmacological properties of botanicals in medicine and the food industry, as well as their botanical characteristics. The plant can serve to conserve soil resources, as it prevents water and wind erosion of dense clay soils in the dry subtropical climate of Central Fergana and could be considered an effective agent of destroyed soils remediation. The development of this plant will contribute to the diversification of agriculture in Uzbekistan (Central Asia) and the development of the food industry and pharmacology.
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8

Neubauer, Scott C., Kim Givler, SarahKeith Valentine, and J. Patrick Megonigal. "SEASONAL PATTERNS AND PLANT-MEDIATED CONTROLS OF SUBSURFACE WETLAND BIOGEOCHEMISTRY." Ecology 86, no. 12 (December 2005): 3334–44. http://dx.doi.org/10.1890/04-1951.

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9

Peterken, G. F., G. E. Likens, and F. H. Bormann. "Biogeochemistry of a Forested Ecosystem." Journal of Ecology 84, no. 4 (August 1996): 630. http://dx.doi.org/10.2307/2261486.

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Natasha, Muhammad Shahid, Sana Khalid, Camille Dumat, Antoine Pierart, and Nabeel Khan Niazi. "Biogeochemistry of antimony in soil-plant system: Ecotoxicology and human health." Applied Geochemistry 106 (July 2019): 45–59. http://dx.doi.org/10.1016/j.apgeochem.2019.04.006.

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Дисертації з теми "Plant biogeochemistry"

1

Arnold, Timothy. "Biogeochemistry of zinc and iron isotopes at the plant-soil interface." Thesis, Imperial College London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501762.

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Alfonso, Amanda. "Organic nitrogen use by different plant functional types in a boreal peatland." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106594.

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Mineralization has long been thought to be the main driver in providing plant available nitrogen (N). However, slow mineralization rates of northern ecosystems cannot sustain total plant N accumulation and it is now recognized that plants can utilize organic forms of N. N is often a limited nutrient in ombrotrophic bogs and at Mer Bleue peatland nearly 80% of the N in the porewater is in the dissolved organic nitrogen (DON) form. This study determined whether peatland plants can take up organic forms of N and whether there are differences between plant functional types, which dominate bog vegetation. To determine if bog plants take up organic N, 16 plots were selected at Mer Bleue where half remained a control and half received a treatment of isotopically labeled glycine (13C2,15N, 98% atom). The labeled glycine was injected into the rhizosphere at a depth of 0-20cm. After 72 hours the leaves and roots of shrub (C. calyculata, V. myrtilloides, L. groenlandicum), sedge (E. vaginatum) and moss (S. magellanicum, S. capillifolium) in the plots were sampled and analyzed for plant δ13C and δ15N. Foliar samples showed a significant uptake of 15N across all species and no significant uptake of 13C. Root samples showed greater enrichment in 15N and 13C for both shrub and sedge species; however, sedge uptake of 13C was not found to be significant. Results showed that shrub species took up glycine intact while a significant uptake of glycine was not found for sedge and moss species. This suggests that the mycorrhizal associations of ericaceous shrubs may contribute to organic N uptake at Mer Bleue bog.
La minéralisation a longtemps semblé être le conducteur principal fournissant l'azote aux plantes. Cependant, les faibles taux de minéralisation des écosystèmes nordiques ne peuvent pas pourvoir l'apport total d'azote des plantes et il est maintenant reconnu que les plantes peuvent utiliser les formes organiques de l'azote. L'azote est souvent un nutriment limitant dans les tourbières ombrotrophes et, à la tourbière Mer Bleue, près de 80% de l'azote dans l'eau interstitielle est sous forme d'azote organique dissous. Cette étude avait pour but de déterminer si les plantes des tourbières peuvent absorber l'azote sous formes organiques et s'il y a des différences entre les types fonctionnels de plantes qui dominent la végétation des tourbières. Pour déterminer si les plantes des tourbières absorbent l'azote organique, 16 parcelles ont été choisies à Mer Bleue, où une moitié a été utilisée comme contrôle et l'autre moitié a reçu un traitement de glycine marquée isotopiquement (13C2, 15N, 98% atomes). La glycine marquée a été injecté dans la rhizosphère à une profondeur de 0-20cm. Après 72 heures, les feuilles et les racines des arbustes (C.calyculata, V. myrtilloides, L.groenlandicum), laîches (E. vaginatum) et les mousses (S. magellanicum, S.capillifolium) dans les parcelles ont été recueillies et analysées pour les plantes δ13C et δ15N. Les échantillons foliaires ont montré une absorption importante de 15N pour toutes les espèces et aucune augmentation significative de signatures δ13C. Les échantillons de racines ont montré un enrichissement plus grand en δ15N et δ13C pour les deux espèces d'arbustes et celle de laîche. Cependant, l'absorption de δ13C pour espèces de laîche n'a pas été jugée significative. Les résultats ont montré que les espèces d'arbustes ont absorbé la glycine entièrement alors que l'absorption de glycine n'a pas été importante pour les espèces de carex et de mousse, ce qui suggère que les associations mycorhiziennes des arbustes éricacées peut être le facteur déterminant dans l'absorption de l'azote organique à la tourbière Mer Bleue.
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Ker, Keomany. "AM fungal contribution to sunflower (Helianthus annuus L) in phytoremediation of nickel-treated soils." Thesis, University of Ottawa (Canada), 2006. http://hdl.handle.net/10393/27258.

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The main objective of this study was to examine the contribution of arbuscular mycorrhizal (AM) colonization on nickel (Ni) uptake and Ni tolerance in sunflower (Helianthus annuus L.) at a vegetative or reproductive stage of development. The combined effect of AM colonization, Ni input, and nitrogen (N) fertilization on N-assimilation in sunflower plants was also investigated. Furthermore, concerns over the transfer of heavy metals (HMs) to higher trophic levels led us to investigate whether the AM colonization and accumulation of Ni within plant tissues would induce synthesis of secondary defense compounds. It was hypothesized that AM colonization increases Ni content and plant Ni tolerance, the activities of N-assimilating enzymes (nitrate reductase, NR; glutamine synthetase, GS; and glutamine dehydrogenase, GDH), and induces the accumulation of sesquiterpene lactones (STLs), in sunflower grown under soil Ni conditions. It was also hypothesized that N-type fertilization affects ammonium assimilation as the activities of GS and GDH would be enhanced in plants supplied with an NH+4 as compared to a NO-3 fertilizer. To verify these hypotheses, three greenhouse experiments were performed with sunflower cv. "Lemon Queen", with or without the AM fungus, Glomus intraradices Schenck & Smith, and treated with (1) 0 or 100 mg Ni kg-1 dry soil (DS) at the reproductive stage, and supplied with NO-3 or NH+4 fertilizer; (2) 0, 100, 200 or 400 mg Ni kg-1, at the reproductive stage and supplied with a complete NH4NO 3 fertilization; and (3) 0, 200 or 400 mg Ni kg-1, at the vegetative stage and supplied with a complete NH4NO 3 fertilizer. The overall results indicated that AM colonization significantly enhances Ni content in sunflower plants, exposed to a moderate soil Ni level of 100 mg Ni kg-1, at the reproductive stage. Furthermore, at 100 mg Ni kg-1, the AM plants had a significantly higher shoot Ni extracted %, suggesting that the AM symbiosis contributed to Ni uptake and its translocation from roots to shoots. The AM contribution to plant Ni content and Ni extracted % were significantly higher in plants supplied with NO-3 than with NH+4 . Moreover, the plant biomass and shoot height were significantly higher in plants supplied with NO-3 than with NH+4 . In late Ni exposed sunflower, the AM colonization significantly increased the Ni extracted % at 400 mg Ni kg-1, yet also resulted in a biomass reduction of 45% as compared to only 14% at 100 mg Ni kg -1. Furthermore, a soil [Ni] of 400 mg Ni kg-1 was toxic to sunflower directly seeded in Ni treated soils, as all seedlings died within four weeks after sowing. The mineral concentrations were enhanced in AM plants, especially at lower soil Ni treatments. It is therefore concluded that the AM contribution to Ni uptake was optimal at 100 mg Ni kg-1 . The AM colonization also contributed to enhance the activities of N-assimilating enzymes, especially under NH+4 fertilization. Moreover, our results showed that the effects of HM stress and N fertilization were linked, as the activities of NR, GS, and GDH were significantly enhanced in plants under NH+4 and at 100 mg Ni kg-1. These results suggest that the combined treatments of soil Ni input and NH+4 nutrition enhance N assimilation via concurrent activities of the GS/GOGAT and GDH pathways. We also observed that both soil Ni input and AM colonization lead to an accumulation of STLs in sunflower leaves. In addition, the combination of AM colonization and soil Ni input would result in a synergistic effect to maximize defense properties while minimizing energy expenditure. These findings support the hypothesis that the AM symbiosis contributes to enhanced Ni uptake and Ni plant tolerance. It is therefore concluded that sunflower, especially in association with AM fungi, shows promise as a "candidate" species in phytoremediation strategies.
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Hua, Yujie. "Changes of Soil Biogeochemistry under Native and Exotic Plants Species." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/1912.

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Invasive plant species are major threats to the biodiversity and ecosystem stability. The purpose of this study is to understand the impacts of invasive plants on soil nutrient cycling and ecological functions. Soil samples were collected from rhizosphere and non-rhizosphere of both native and exotic plants from three genera, Lantana, Ficus and Schinus, at Tree Tops Park in South Florida, USA. Experimental results showed that the cultivable bacterial population in the soil under Brazilian pepper (invasive Schinus) was approximately ten times greater than all other plants. Also, Brazilian pepper lived under conditions of significantly lower available phosphorus but higher phosphatase activities than other sampled sites. Moreover, the respiration rates and soil macronutrients in rhizosphere soils of exotic plants were significantly higher than those of the natives (Phosphorus, p=0.034; Total Nitrogen, p=0.0067; Total Carbon, p=0.0243). Overall, the soil biogeochemical status under invasive plants was different from those of the natives.
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Juice, Stephanie. "The Environmental Microbiome In A Changing World: Microbial Processes And Biogeochemistry." ScholarWorks @ UVM, 2020. https://scholarworks.uvm.edu/graddis/1181.

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Climate change can alter ecosystem processes and organismal phenology through both long-term, gradual changes and alteration of disturbance regimes. Because microbes mediate decomposition, and therefore the initial stages of nutrient cycling, soil biogeochemical responses to climate change will be driven by microbial responses to changes in temperature, precipitation, and pulsed climatic events. Improving projections of soil ecological and biogeochemical responses to climate change effects therefore requires greater knowledge of microbial contributions to decomposition. This dissertation examines soil microbial and biogeochemical responses to the long-term and punctuated effects of climate change, as well as improvement to decomposition models following addition of microbial parameters. First, through a climate change mesocosm experiment on two soils, I determined that biogeochemical losses due to warming and snow reduction vary across soil types. Additionally, the length of time with soil microbial activity during plant dormancy increased under warming, and in some cases decreased following snow reduction. Asynchrony length was positively related to carbon and nitrogen loss. Next, I examined soil enzyme activity, carbon and nitrogen biodegradability, and fungal abundance in response to ice storms, an extreme event projected to occur more frequently under climate change in the northeastern United States. Enzyme activity response to ice storm treatments varied by both target nutrient and, for nitrogen, soil horizon. Soil horizons often experienced opposite response of enzyme activity to ice storm treatments, and increasing ice storm frequency also altered the direction of the microbial response. Mid-levels of ice storm treatment additionally increased fungal hyphal abundance. Finally, I added explicit microbial parameters to a global decomposition model that previously incorporated climate and litter quality. The best mass loss model simply added microbial flows between litter quality pools, and addition of a microbial biomass and products pool also improved model performance compared to the traditional implicit microbial model. Collectively, these results illustrate the importance of soil characteristics to the biogeochemical and microbial response to both gradual climate change effects and extreme events. Furthermore, they show that large-scale decomposition models can be improved by adding microbial parameters. This information is relevant to the effects of climate change and microbial activity on biogeochemical cycles.
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Montross, Scott Norman. "Geochemical evidence for microbially mediated subglacial mineral weathering." Thesis, Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/montross/MontrossS0507.pdf.

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Interactions between dilute meltwater and fine-grained, freshly comminuted debris at the bed of temperate glaciers liberate significant solute. The proportions of solute produced in the subglacial environment via biotic and abiotic processes remains unknown, however, this work suggests the biotic contribution is substantial. Laboratory analyses of microbiological and geochemical properties of sediment and meltwater from the Haut Glacier d\'Arolla (HGA) indicates that a metabolically active microbial community exists in water-saturated sediments at the ice-bedrock interface. Basal sediment slurries and meltwater were incubated in the laboratory for 100 days under near in situ subglacial conditions. Relative proportions of solute produced via abiotic v. biotic mineral weathering were analyzed by comparing the evolved aqueous chemistry of biologically active (live) sediment slurries with sterilized controls. Aqueous chemical analyses indicate an increase in solute produced from mineral weathering coupled with nitrate depletion in the biologically active slurries compared with the killed controls. These results infer that microbial activity at HGA is likely an important contributor to chemical weathering associated solute fluxes from the glaciated catchment. Due to the magnitude of past glaciations throughout geologic time (e.g., Neoproterozoic and Late-Pleistocene), and evidence that subglacial microbial activity impacts mineral weathering, greater consideration needs to be given to cold temperature biogeochemical weathering and its impact on global geochemical cycles.
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Gougherty, Steven W. "Exudation Rates and δ13C Signatures of Bottomland Tree Root Soluble Organic Carbon: Relationships to Plant and Environmental Characteristics". The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1448818110.

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Van, der Merwe Margaretha Johanna. "Influence of hexose-phosphates and carbon cycling on sucrose accumulation in sugarcane spp." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1257.

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Card, Marcella. "Interactions among soil, plants, and endocrine disrupting compounds in livestock agriculture." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1311287470.

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Franklin, Oskar. "Plant and forest dynamics in response to nitrogen availability /." Uppsala : Swedish University of Agricultural Sciences, 2003. http://diss-epsilon.slu.se/archive/00000345/.

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Thesis (doctoral)--Swedish University of Agricultural Sciences, 2003.
Appendix consists of reprints of three papers and a manuscript, three of which are co-authored with others. Includes bibliographical references. Also partially issued electronically via World Wide Web in PDF format; online version lacks appendix.
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Книги з теми "Plant biogeochemistry"

1

Tosi, Joseph A. An ecological model for the prediction of carbon offsets by terrestrial biota. San José, Costa Rica: Tropical Science Center, 1997.

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J, Proctor, ed. Mineral nutrients in tropical forest and savanna ecosystems. Oxford [England]: Blackwell Scientific, 1989.

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3

Ågren, Göran I. Theoretical ecosystem ecology. Cambridge: Cambridge University Press, 1996.

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4

I, Woodward F., ed. Vegetation and the terrestrial carbon cycle: Modelling the first 400 million years. Cambridge, U.K: Cambridge University Press, 2001.

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5

Dr, Barre Pierre, ed. Soils, plants and clay minerals: Mineral and biologic interactions. Heidelberg: Springer, 2010.

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6

Franklin, Oskar. Plant and forest dynamics in response to nitrogen availability. Uppsala: Swedish University of Agricultural Sciences, 2003.

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7

Adams, Jonathan. Vegetation—Climate Interaction: How Plants Make the Global Environment. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2007.

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8

Soil and vegetation systems. 2nd ed. Oxford: Clarendon Press, 1988.

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9

Soil and vegetation systems. 2nd ed. Oxford: Oxford University Press, 1988.

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10

International Symposium on Biomineralization (5th 1986 Arlington, Tex.). Origin, evolution, and modern aspects of biomineralization in plants and animals. New York: Plenum Press, 1989.

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Частини книг з теми "Plant biogeochemistry"

1

Cronan, Christopher S. "Plant Biogeochemistry." In Ecosystem Biogeochemistry, 41–60. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66444-6_4.

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2

Conner, William H., and Julia A. Cherry. "Plant Productivity-Bottomland Hardwood Forests." In Methods in Biogeochemistry of Wetlands, 225–42. Madison, WI, USA: American Society of Agronomy and Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssabookser10.c13.

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3

Sorrell, Brian K., and Hans Brix. "Gas Transport and Exchange through Wetland Plant Aerenchyma." In Methods in Biogeochemistry of Wetlands, 177–96. Madison, WI, USA: American Society of Agronomy and Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssabookser10.c11.

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4

Richardson, Curtis J., and Ryan S. King. "A Primer on Sampling Plant Communities in Wetlands." In Methods in Biogeochemistry of Wetlands, 197–223. Madison, WI, USA: American Society of Agronomy and Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssabookser10.c12.

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Gobran, G. R., S. Clegg, and F. Courchesne. "Rhizospheric processes influencing the biogeochemistry of forest ecosystems." In Plant-induced soil changes: Processes and feedbacks, 107–20. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-2691-7_6.

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Sumner, M. E., and S. Dudka. "Fly Ash-Borne Arsenic in the Soil-Plant System." In Biogeochemistry of Trace Elements in Coal and Coal Combustion Byproducts, 269–78. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4155-4_17.

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Reddy, K. Ramesh, Ronald D. DeLaune, and Patrick W. Inglett. "Adaptation of Plants to Soil Anaerobiosis." In Biogeochemistry of Wetlands, 239–80. 2nd ed. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9780429155833-7.

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Nouchi, Isamu, and Shigeru Mariko. "Mechanism of Methane Transport by Rice Plants." In Biogeochemistry of Global Change, 336–52. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2812-8_18.

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Sindhu, Satyavir S., Manisha Phour, Sita Ram Choudhary, and Deepika Chaudhary. "Phosphorus Cycling: Prospects of Using Rhizosphere Microorganisms for Improving Phosphorus Nutrition of Plants." In Geomicrobiology and Biogeochemistry, 199–237. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-41837-2_11.

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Galhardi, Juliana A., Daniel M. Bonotto, Carlos E. Eismann, and Ygor Jacques A. B. Da Silva. "Biogeochemistry of Uranium in Tropical Environments." In Uranium in Plants and the Environment, 91–111. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-14961-1_4.

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Звіти організацій з теми "Plant biogeochemistry"

1

Twining, Benjamin S., Mak A. Saito, Alyson E. Santoro, Adrian Marchetti, and Naomi M. Levine. US National BioGeoSCAPES Workshop Report. Woods Hole Oceangraphic Institution, January 2023. http://dx.doi.org/10.1575/1912/29604.

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Анотація:
BioGeoSCAPES (BGS) is an international program being developed to understand controls on ocean productivity and metabolism by integrating systems biology (‘omics) and biogeochemistry (Figure 1). To ensure global input into the design of the BGS Program, countries interested in participating were tasked with holding an organizing meeting to discuss the country-specific research priorities. A United States BGS planning meeting, sponsored by the Ocean Carbon & Biogeochemistry (OCB) Project Office, was convened virtually November 10-12, 2021. The objectives of the meeting were to communicate the planning underway by international partners, engage the US community to explore possible national contributions to such a program, and build understanding, support, and momentum for US efforts towards BGS. The meeting was well-attended, with 154 participants and many fruitful discussions that are summarized in this document. Key outcomes from the meeting were the identification of additional programs and partners for BGS, a prioritization of measurements requiring intercalibration, and the development of a consensus around key considerations to be addressed in a science plan. Looking forward, the hope is that this workshop will serve as the foundation for future US and international discussions and planning for a BGS program, enabled by NSF funding for an AccelNet project (AccelNet - Implementation: Development of an International Network for the Study of Ocean Metabolism and Nutrient Cycles on a Changing Planet (BioGeoSCAPES)), beginning in 2022.
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2

Yermiyahu, Uri, Thomas Kinraide, and Uri Mingelgrin. Role of Binding to the Root Surface and Electrostatic Attraction in the Uptake of Heavy Metal by Plants. United States Department of Agriculture, 2000. http://dx.doi.org/10.32747/2000.7586482.bard.

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The principal accomplishment of the research supported by BARD was progress toward a comprehensive view of cell-surface electrical effects (both in cell walls [CWs] and at plasma membrane [PM] surfaces) upon ion uptake, intoxication, and amelioration. The research confirmed that electrostatic models (e.g., Gouy-Chapman-Stern [G-C-S]), with parameter values contributed by us, successfully predict ion behavior at cell surfaces. Specific research objectives 1. To characterize the sorption of selected heavy metals (Cu, Zn, Pb, Cd) to the root PM in the presence of other cations and organic ligands (citric and humic acids). 2. To compute the parameters of a G-C-S model for heavy-metal sorption to the root PM. 3. To characterize the accumulation of selected heavy metals in various plant parts. 4. To determine whether model-computed ion binding or ion activities at root PM surfaces predict heavy-metal accumulation in whole roots, root tips, or plant shoots. 5. To determine whether measured ion binding by protoplast-free roots (i.e., root CWs) predicts heavy-metal accumulation in whole roots, root tips, or plant shoots. 6. To correlate growth inhibition, and other toxic responses, with the measured and computed factors mentioned above. 7. To determine whether genotypic differences in heavy-metal accumulation and toxic responses correlate with genotypic differences in parameters of the G-C-S model. Of the original objectives, all except for objective 7 were met. Work performed to meet the other objectives, and necessitated on the basis of experimental findings, took the time that would have been required to meet objective 7. In addition, work with Pb was unsuccessful due to experimental complications and work on Cd is still in progress. On the other hand, the uptake and toxicity of the anion, selenate was characterized with respect to electrostatic effects and the influences of metal cations. In addition, the project included more theoretical work, supported by experimentation, than was originally planned. This included transmembrane ion fluxes considered in terms of PM-surface electrical potentials and the influence of CWs upon ion concentrations at PM surfaces. A important feature of the biogeochemistry of trace elements in the rhizosphere is the interaction between plant-root surfaces and the ions present in the soil solution. The ions, especially the cations, of the soil solution may be accumulated in the aqueous phases of cell surfaces external to the PMs, sometimes referred to as the "water free space" and the "Donnan free space". In addition, ions may bind to the CW components or to the PM surface with variable binding strength. Accumulation at the cell surface often leads to accumulation in other plant parts with implications for the safety and quality of foods. A G-C-S model for PMs and a Donnan-plus-binding model for CWs were used successfully to compute electrical potentials, ion binding, and ion concentration at root-cell surfaces. With these electrical potentials, corresponding values for ion activities may be computed that are at least proportional to actual values also. The computed cell-surface ion activities predict and explain ion uptake, intoxication, and amelioration of intoxication much more accurately than ion activities in the bulk-phase rooting medium.
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3

Stanley, Rachel H. R., Thomas Thomas, Yuan Gao, Cassandra Gaston, David Ho, David Kieber, Kate Mackey, et al. US SOLAS Science Report. Woods Hole Oceanographic Institution, December 2021. http://dx.doi.org/10.1575/1912/27821.

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Анотація:
The Surface Ocean – Lower Atmosphere Study (SOLAS) (http://www.solas-int.org/) is an international research initiative focused on understanding the key biogeochemical-physical interactions and feedbacks between the ocean and atmosphere that are critical elements of climate and global biogeochemical cycles. Following the release of the SOLAS Decadal Science Plan (2015-2025) (Brévière et al., 2016), the Ocean-Atmosphere Interaction Committee (OAIC) was formed as a subcommittee of the Ocean Carbon and Biogeochemistry (OCB) Scientific Steering Committee to coordinate US SOLAS efforts and activities, facilitate interactions among atmospheric and ocean scientists, and strengthen US contributions to international SOLAS. In October 2019, with support from OCB, the OAIC convened an open community workshop, Ocean-Atmosphere Interactions: Scoping directions for new research with the goal of fostering new collaborations and identifying knowledge gaps and high-priority science questions to formulate a US SOLAS Science Plan. Based on presentations and discussions at the workshop, the OAIC and workshop participants have developed this US SOLAS Science Plan. The first part of the workshop and this Science Plan were purposefully designed around the five themes of the SOLAS Decadal Science Plan (2015-2025) (Brévière et al., 2016) to provide a common set of research priorities and ensure a more cohesive US contribution to international SOLAS.
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