Decreased carbon limitation of litter respiration in a mortality-affected pinon-juniper woodland

Erin Berryman; John D. Marshall; Thom Rahn; Marcie Litvak; John Butnor

doi:10.5194/bg-10-1625-2013

Treesearch

Decreased carbon limitation of litter respiration in a mortality-affected pinon-juniper woodland

Formally Refereed

Authors:

Erin Berryman, John D. Marshall, Thom Rahn, Marcie Litvak, John Butnor

Year:

2013

Type:

Scientific Journal

Station:

Southern Research Station

DOI:

https://doi.org/10.5194/bg-10-1625-2013

Source:

Biogeosciences 10:1625-1634

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Download (PDF 1.39 MB): https://research.fs.usda.gov/download/treesearch/45774.pdf

Abstract

Microbial respiration depends on microclimatic variables and carbon (C) substrate availability, all of which are altered when ecosystems experience major disturbance. Widespread tree mortality, currently affecting pinon-juniper ecosystems in southwestern North America, may affect C substrate availability in several ways, for example, via litterfall pulses and loss of root exudation. To determine pinon mortality effects on C and water limitation of microbial respiration, we applied field amendments (sucrose and water) to two pinon-juniper sites in central New Mexico, USA: one with a recent (

Keywords

litter respiration, pinon-juniper, ACES

Citation

Berryman, Erin; Marshall, John D.; Rahn, Thom; Litvak, Marcie; Butnor, John. 2013.Decreased carbon limitation of litter respiration in a mortality-affected pinon-juniper woodland. Biogeosciences 10:1625-1634.