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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F12%3A00380892" target="_blank" >RIV/67985939:_____/12:00380892 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67179843:_____/12:00380892 RIV/62156489:43210/12:00193054

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.envpol.2012.07.007" target="_blank" >http://dx.doi.org/10.1016/j.envpol.2012.07.007</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envpol.2012.07.007" target="_blank" >10.1016/j.envpol.2012.07.007</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 Nha1). 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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 Nha1). 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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Environmental Pollution

ISSN

0269-7491

e-ISSN

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Svazek periodika

170

Číslo periodika v rámci svazku

NOV 2012

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

211-216

Kód UT WoS článku

000308450100026

EID výsledku v databázi Scopus

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