Search Results - "URI, V"

Biomass production and carbon sequestration in a fertile silver birch (Betula pendula Roth) forest chronosequence by Uri, V., Varik, M., Aosaar, J., Kanal, A., Kukumägi, M., Lõhmus, K.

“…► The main C sink in the fertile silver birch stands is tree biomass. ► The soil C pool did not depend on stand age. ► The average of C concentration in the…”
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Short-term effect of thinning on the carbon budget of young and middle-aged silver birch (Betula pendula Roth) stands by Aun, K., Kukumägi, M., Varik, M., Becker, H., Aosaar, J., Uri, M., Buht, M., Uri, V.

“…•Thinning did not significantly influence the soil CO2 effluxes.•Thinned stands acted as C sinks despite their decreased annual production.•Thinning affected…”
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Recovery dynamics of ecosystem carbon budgets in a young silver birch stand chronosequence after clear-cut - Estonian case study by Aun, K., Kukumägi, M., Varik, M., Uri, M., Buht, M., Aosaar, J., Padari, A., Sepaste, A., Soosaar, K., Becker, H., Uri, V.

“…Clear-cutting is an extensively used silvicultural method in the Nordic and Baltic countries, which strongly influences the site's carbon (C) budget. In the…”
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Elevated atmospheric humidity shapes the carbon cycle of a silver birch forest ecosystem: A FAHM study by Lõhmus, K., Rosenvald, K., Ostonen, I., Kukumägi, M., Uri, V., Tullus, A., Aosaar, J., Varik, M., Kupper, P., Torga, R., Maddison, M., Soosaar, K., Sõber, J., Mander, Ü., Kaasik, A., Sõber, A.

“…Processes determining the carbon (C) balance of a forest ecosystem are influenced by a number of climatic and environmental factors. In Northern Europe, a rise…”
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The effect of elevated air humidity on young silver birch and hybrid aspen biomass allocation and accumulation – Acclimation mechanisms and capacity by Rosenvald, K., Tullus, A., Ostonen, I., Uri, V., Kupper, P., Aosaar, J., Varik, M., Sõber, J., Niglas, A., Hansen, R., Rohula, G., Kukk, M., Sõber, A., Lõhmus, K.

“…•Higher air humidity decreased the aboveground biomass for hybrid aspens.•Birches recovered biomass accumulation by the fourth humidification year.•In humid…”
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Variation in fine root biomass of three European tree species: Beech (Fagus sylvatica L.), Norway spruce (Picea abies L. Karst.), and Scots pine (Pinus sylvestris L.) by Finér, L., Helmisaari, H.-S., Lõhmus, K., Majdi, H., Brunner, I., Børja, I., Eldhuset, T., Godbold, D., Grebenc, T., Konôpka, B., Kraigher, H., Möttönen, M.-R., Ohashi, M., Oleksyn, J., Ostonen, I., Uri, V., Vanguelova, E.

“…Fine roots (<2 mm) are very dynamic and play a key role in forest ecosystem carbon and nutrient cycling and accumulation. We reviewed root biomass data of…”
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Functional Diversity of Culturable Bacterial Communities in the Rhizosphere in Relation to Fine-root and Soil Parameters in Alder Stands on Forest, Abandoned Agricultural, and Oil-shale Mining Areas by Lohmus, K, Truu, M, Truu, J, Ostonen, I, Kaar, E, Vares, A, Uri, V, Alama, S, Kanal, A

“…Grey alder (Alnus incana) and black alder (Alnus glutinosa) stands on forest land, abandoned agricultural, and reclaimed oil-shale mining areas were…”
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Hemiboreal forests’ CO2 fluxes response to the European 2018 heatwave by Krasnova, A., Mander, Ü., Noe, S.M., Uri, V., Krasnov, D., Soosaar, K.

“…•The heatwave 2018 impact on carbon exchange differed among the different forest types.•The pine forest CO2 flux was the least affected in the heatwave…”
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Short-term effect of thinning on the carbon budget of young and middle-aged Scots pine (Pinus sylvestris L.) stands by Aun, K., Kukumägi, M., Varik, M., Becker, H., Aosaar, J., Uri, M., Morozov, G., Buht, M., Uri, V.

“…•Thinned stands still acted as C sinks despite their decreased annual production.•Thinning did not significantly influence the soil CO2 effluxes.•Thinning…”
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Carbon budgets in fertile grey alder (Alnus incana (L.) Moench.) stands of different ages by Uri, V., Kukumägi, M., Aosaar, J., Varik, M., Becker, H., Soosaar, K., Morozov, G., Ligi, K., Padari, A., Ostonen, I., Karoles, K.

“…•The carbon fluxes of grey alder stands of different ages were studied during five-year time series measurements.•NPP may be highly variable, depending on both…”
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impact of a pulsing groundwater table on greenhouse gas emissions in riparian grey alder stands by Mander, Ülo, Maddison, Martin, Soosaar, Kaido, Teemusk, Alar, Kanal, Arno, Uri, Veiko, Truu, Jaak

“…Floods control greenhouse gas (GHG) emissions in floodplains; however, there is a lack of data on the impact of short-term events on emissions. We studied the…”
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Bacterial community structure and its relationship to soil physico-chemical characteristics in alder stands with different management histories by Preem, Jens-Konrad, Truu, Jaak, Truu, Marika, Mander, Ülo, Oopkaup, Kristjan, Lõhmus, Krista, Helmisaari, Heljä-Sisko, Uri, Veiko, Zobel, Martin

“…► Bacterial community structure in black and grey alder stand soils was assessed. ► Alder stands had distinct soil bacterial communities. ► The alder species…”
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Above-ground biomass production and nutrient accumulation in young stands of silver birch on abandoned agricultural land by Uri, Veiko, Vares, Aivo, Tullus, Hardi, Kanal, Arno

“…During the last decade, more than 400 000 ha of agricultural land was abandoned in Estonia. Such areas are often characterized by rapid natural afforestation…”
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The effect of land use type on net nitrogen mineralization on abandoned agricultural land: Silver birch stand versus grassland by Uri, Veiko, Lõhmus, Krista, Kund, Merit, Tullus, Hardi

“…The effect of land use type on the dynamics and annual rate of net nitrogen mineralization (NNM) in a naturally generated silver birch stand and in a…”
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Is Escherichia coli ATCC 25922 a colicin producing strain? (a note) by Uri, J V

“…The well-characterized strain of Escherichia coli ATCC 25922 recommended and widely used as a control Gram-negative bacterium for various laboratory…”
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Rhizosphere effect and fine-root morphological adaptations in a chronosequence of silver birch stands on reclaimed oil shale post-mining areas by Rosenvald, Katrin, Kuznetsova, Tatjana, Ostonen, Ivika, Truu, Marika, Truu, Jaak, Uri, Veiko, Lõhmus, Krista

“…Mining activities create wastelands that require reclamation. The relief of abandoned opencast oil shale mining area is rugged, and the mining spoil is…”
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Biomass production and nutrient accumulation in short-rotation grey alder ( Alnus incana (L.) Moench) plantation on abandoned agricultural land by Uri, Veiko, Tullus, Hardi, Lõhmus, Krista

“…In 1999, the area of abandoned agricultural land in Estonia formed 223,000 ha which is partly perspective for afforestation with grey alder, the most rapidly…”
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The dynamics of biomass production in relation to foliar and root traits in a grey alder (Alnus incana (L.) Moench) plantation on abandoned agricultural land by Uri, Veiko, Lõhmus, Krista, Kiviste, Andres, Aosaar, Jürgen

“…The dynamics of the above-ground biomass production of a grey alder plantation on abandoned farmland was investigated during 11 years after establishment. In…”
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Annual net nitrogen mineralization in a grey alder ( Alnus incana (L.) moench) plantation on abandoned agricultural land by Uri, Veiko, Lõhmus, Krista, Tullus, Hardi

“…The dynamics and annual rate of net nitrogen mineralization in a grey alder plantation growing on abandoned agricultural land was assessed in situ using the…”
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Colorimetric detection and spectrophotometric determination of the aminothiazolyl-alkoxyimino beta-lactams by Uri, J V, Jain, T C

“…The 2-aminothiazolyl-4-yl-2-alkoxyiminoacetamido substituent-containing beta-lactam antibiotics (cephalosporins and monobactams) develop a stable,…”
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