About: The effect of nitrogen addition on biomass production and competition in three expansive tall grasses

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A large increase of grasses Calamagrostis epigejos, Bromus inermis and Brachypodium pinnatum has often been observed in many regions enriched by higher nitrogen (N) wet deposition inputs. Competitive relationships between these grasses under enhanced N loads have not yet been studied. Therefore an outdoor experiment was established which involved monocultures of Calamagrostis, Bromus and Brachypodium and their 1:1 mixtures in containers under two N treatments, i.e., unfertilized and fertilized (+50 kg N ha1). In monocultures, the total aboveground biomass of Calamagrostis, Bromus and Brachypodium were 1.1, 3.6 and 2.5 times higher respectively due to enhanced N fertilization. Relative crowding and aggressivity coefficients indicate that Calamagrostis and Bromus dominate when mixed with Brachypodium at both levels of N availability. When mixed with Bromus, Calamagrostis is the poorer competitor at lower N loads, however, it can be dominating in N fertilized treatments. A large increase of grasses Calamagrostis epigejos, Bromus inermis and Brachypodium pinnatum has often been observed in many regions enriched by higher nitrogen (N) wet deposition inputs. Competitive relationships between these grasses under enhanced N loads have not yet been studied. Therefore an outdoor experiment was established which involved monocultures of Calamagrostis, Bromus and Brachypodium and their 1:1 mixtures in containers under two N treatments, i.e., unfertilized and fertilized (+50 kg N ha1). In monocultures, the total aboveground biomass of Calamagrostis, Bromus and Brachypodium were 1.1, 3.6 and 2.5 times higher respectively due to enhanced N fertilization. Relative crowding and aggressivity coefficients indicate that Calamagrostis and Bromus dominate when mixed with Brachypodium at both levels of N availability. When mixed with Bromus, Calamagrostis is the poorer competitor at lower N loads, however, it can be dominating in N fertilized treatments. (en)
Title	The effect of nitrogen addition on biomass production and competition in three expansive tall grasses The effect of nitrogen addition on biomass production and competition in three expansive tall grasses (en)
skos:prefLabel	The effect of nitrogen addition on biomass production and competition in three expansive tall grasses The effect of nitrogen addition on biomass production and competition in three expansive tall grasses (en)
skos:notation	RIV/67985939:_____/12:00380892!RIV13-GA0-67985939
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED1.1.00/02.0073), P(GA526/06/0556), P(QJ1220007)
http://linked.open...iv/cisloPeriodika	NOV 2012
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Fiala, Karel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Botanický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	133169
http://linked.open...ai/riv/idVysledku	RIV/67985939:_____/12:00380892
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	aboveground biomass; aggressivity; crowding coefficient; Nitrogen; tall grasses (en)
http://linked.open.../riv/klicoveSlovo	Nitrogen aboveground biomass aggressivity crowding coefficient tall grasses
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[DC741C91ED96]
http://linked.open...i/riv/nazevZdroje	Environmental Pollution
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	CzechGlobe - Center for Global Climate Change Impacts Studies Impact of precipitation changes on plant and soil processes in different grassland ecosystems Possibilities of retention of reactive nitrogen from agriculture in the most vulnerable water resource area
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	170
http://linked.open...iv/tvurceVysledku	Holub, Petr Fiala, Karel Tůma, I.
http://linked.open...ain/vavai/riv/wos	000308450100026
issn	0269-7491
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.envpol.2012.07.007

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