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Statements

Subject Item
n2:RIV%2F62156489%3A43210%2F11%3A00178471%21RIV12-MSM-43210___
rdf:type
skos:Concept n12:Vysledek
dcterms:description
The area of interest is located in the Sierra de los Filabres in semi-arid steppe of the province of Almeria in Spain. The amount of water in the soil is a limiting factor and its availability affects the structure and species composition of ecosystem. On the other hand, the type of vegetation affects the water loss via evapotranspiration and thus the soil microclimate. It has a great influence on the growth and activity of soil microbial communities and hence the dynamics of decomposition of organic matter and nutrient availability. The aim of this study was to assess the intensity of microbial transformations of soil organic nitrogen and describe changes in the content of nitrogen mineral forms at different depths in the semi-arid climate soil in the Mediterranean region. Availability and movement of nitrogen was monitored by capturing the mineral nitrogen into the structures of ion exchange resin applied to the soil in three different variants (control variant, a variant with the addition of cellulose, and the variant with the addition of raw silk). Ion exchange resins have been installed into soil profile in 2008, 2009, and 2010. After the in situ exposure the ion exchange resins were removed from the soil profile and the quantity of captured mineral N was determined by distillation titration method. The availability of ammonia-nitrogen was significantly affected by the addition of different substrates mainly by the additions of the raw silk, where the availability was regularly the highest. However, the availability of ammonia-nitrogen form was generally higher than the availability of nitrate form. The area of interest is located in the Sierra de los Filabres in semi-arid steppe of the province of Almeria in Spain. The amount of water in the soil is a limiting factor and its availability affects the structure and species composition of ecosystem. On the other hand, the type of vegetation affects the water loss via evapotranspiration and thus the soil microclimate. It has a great influence on the growth and activity of soil microbial communities and hence the dynamics of decomposition of organic matter and nutrient availability. The aim of this study was to assess the intensity of microbial transformations of soil organic nitrogen and describe changes in the content of nitrogen mineral forms at different depths in the semi-arid climate soil in the Mediterranean region. Availability and movement of nitrogen was monitored by capturing the mineral nitrogen into the structures of ion exchange resin applied to the soil in three different variants (control variant, a variant with the addition of cellulose, and the variant with the addition of raw silk). Ion exchange resins have been installed into soil profile in 2008, 2009, and 2010. After the in situ exposure the ion exchange resins were removed from the soil profile and the quantity of captured mineral N was determined by distillation titration method. The availability of ammonia-nitrogen was significantly affected by the addition of different substrates mainly by the additions of the raw silk, where the availability was regularly the highest. However, the availability of ammonia-nitrogen form was generally higher than the availability of nitrate form.
dcterms:title
The availability of mineral nitrogen in Mediterranean open steppe dominated by Stipa tenacissima L. The availability of mineral nitrogen in Mediterranean open steppe dominated by Stipa tenacissima L.
skos:prefLabel
The availability of mineral nitrogen in Mediterranean open steppe dominated by Stipa tenacissima L. The availability of mineral nitrogen in Mediterranean open steppe dominated by Stipa tenacissima L.
skos:notation
RIV/62156489:43210/11:00178471!RIV12-MSM-43210___
n12:predkladatel
n13:orjk%3A43210
n4:aktivita
n6:Z
n4:aktivity
Z(MSM6215648905)
n4:cisloPeriodika
5
n4:dodaniDat
n11:2012
n4:domaciTvurceVysledku
n7:8119120 n7:9864865
n4:druhVysledku
n18:J
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n19:predkladatel
n4:idSjednocenehoVysledku
187693
n4:idVysledku
RIV/62156489:43210/11:00178471
n4:jazykVysledku
n15:eng
n4:klicovaSlova
microbial transformations; Mediterranean soil; mineral nitrogen; ion exchange resin
n4:klicoveSlovo
n8:microbial%20transformations n8:ion%20exchange%20resin n8:mineral%20nitrogen n8:Mediterranean%20soil
n4:kodStatuVydavatele
CZ - Česká republika
n4:kontrolniKodProRIV
[43862DDC2777]
n4:nazevZdroje
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
n4:obor
n16:EH
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
3
n4:rokUplatneniVysledku
n11:2011
n4:svazekPeriodika
LIX
n4:tvurceVysledku
Záhora, Jaroslav Ruiz Sinoga, Jose Damian Novosádová, Irena
n4:zamer
n14:MSM6215648905
s:issn
1211-8516
s:numberOfPages
6
n17:organizacniJednotka
43210