Grazing effects on carbon fluxes in a Northern China grassland

Grazing effects on carbon fluxes in a Northern China grassland

Grazing management is critical and can play a significant role in driving C sink and source activity in grassland ecosystems. In this study, CO2 exchange patterns during the growing season were evaluated in the grasslands of northern China using a closed-chamber technique at three stocking rates sit...

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Veröffentlicht in:Journal of arid environments 2015-03, Vol.114, p.41-48
Hauptverfasser: Zhu, Lingling, Johnson, Douglas A., Wang, Weiguang, Ma, Lei, Rong, Yuping
Format: Artikel
Sprache:eng
Schlagworte:
Biomass
China
Daytime ecosystem CO2 exchange
Ecosystem respiration
Ecosystems
Exchange
Grasslands
Grazing
Gross ecosystem production
Respiration
Soil (material)
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Zusammenfassung:Grazing management is critical and can play a significant role in driving C sink and source activity in grassland ecosystems. In this study, CO2 exchange patterns during the growing season were evaluated in the grasslands of northern China using a closed-chamber technique at three stocking rates sites. The results showed that heavy grazing markedly reduced green biomass, plant standing dead, and litter mass as well as reduced net ecosystem exchange (NEE) (P 
ISSN:0140-1963
1095-922X
DOI:10.1016/j.jaridenv.2014.11.004