Effects of grass species and grass growth on atmospheric nitrogen deposition to a bog ecosystem surrounded by intensive agricultural land use

Näytä kaikki kuvailutiedot



Pysyväisosoite

http://hdl.handle.net/10138/209586

Lähdeviite

Hurkuck , M , Bruemmer , C , Mohr , K , Spott , O , Well , R , Flessa , H & Kutsch , W L 2015 , ' Effects of grass species and grass growth on atmospheric nitrogen deposition to a bog ecosystem surrounded by intensive agricultural land use ' , Ecology and Evolution , vol. 5 , no. 13 , pp. 2556-2571 . https://doi.org/10.1002/ece3.1534

Julkaisun nimi: Effects of grass species and grass growth on atmospheric nitrogen deposition to a bog ecosystem surrounded by intensive agricultural land use
Tekijä: Hurkuck, Miriam; Bruemmer, Christian; Mohr, Karsten; Spott, Oliver; Well, Reinhard; Flessa, Heinz; Kutsch, Werner L.
Tekijän organisaatio: Department of Physics
Päiväys: 2015-07
Kieli: eng
Sivumäärä: 16
Kuuluu julkaisusarjaan: Ecology and Evolution
ISSN: 2045-7758
DOI-tunniste: https://doi.org/10.1002/ece3.1534
URI: http://hdl.handle.net/10138/209586
Tiivistelmä: We applied a N-15 dilution technique called Integrated Total Nitrogen Input (ITNI) to quantify annual atmospheric N input into a peatland surrounded by intensive agricultural practices over a 2-year period. Grass species and grass growth effects on atmospheric N deposition were investigated using Lolium multiflorum and Eriophorum vaginatum and different levels of added N resulting in increased biomass production. Plant biomass production was positively correlated with atmospheric N uptake (up to 102.7mg N pot(-1)) when using Lolium multiflorum. In contrast, atmospheric N deposition to Eriophorum vaginatum did not show a clear dependency to produced biomass and ranged from 81.9 to 138.2mgNpot(-1). Both species revealed a relationship between atmospheric N input and total biomass N contents. Airborne N deposition varied from about 24 to 55kgNha(-1)yr(-1). Partitioning of airborne N within the monitor system differed such that most of the deposited N was found in roots of Eriophorum vaginatum while the highest share was allocated in aboveground biomass of Lolium multiflorum. Compared to other approaches determining atmospheric N deposition, ITNI showed highest airborne N input and an up to fivefold exceedance of the ecosystem-specific critical load of 5-10kgNha(-1)yr(-1).
Avainsanat: N-15 isotope dilution technique
biomonitoring
critical load
Eriophorum vaginatum
integrated total nitrogen input
Lolium multiflorum
nitrogen deposition
ombrotrophic bog
N-15 ISOTOPE-DILUTION
AMMONIA
VEGETATION
INPUT
SYSTEM
LEAVES
NH3
DIVERSITY
RYEGRASS
NITRATE
1172 Environmental sciences
Vertaisarvioitu: Kyllä
Tekijänoikeustiedot: cc_by
Pääsyrajoitteet: openAccess
Rinnakkaistallennettu versio: publishedVersion


Tiedostot

Latausmäärä yhteensä: Ladataan...

Tiedosto(t) Koko Formaatti Näytä
Hurkuck_et_al_2015_Ecology_and_Evolution.pdf 555.2KB PDF Avaa tiedosto

Viite kuuluu kokoelmiin:

Näytä kaikki kuvailutiedot