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Shrub encroachment in North American grasslands: shifts in growth form dominance rapidly alters control of ecosystem carbon inputs

Dates

Year
2008

Citation

Knapp, Alan K., Briggs, John M., Collins, Scott L., Archer, Steven R., Bret-Harte, M. Syndonia, Ewers, Brent E., Peters, Debra P., Young, Donald R., Shaver, Gaius R., Pendall, Elise, and Cleary, Meagan B., 2008, Shrub encroachment in North American grasslands: shifts in growth form dominance rapidly alters control of ecosystem carbon inputs: Global Change Biology, v. 14, no. 3, p. 615-623.

Summary

Shrub encroachment into grass-dominated biomes is occurring globally due to a variety of anthropogenic activities, but the consequences for carbon (C) inputs, storage and cycling remain unclear. We studied eight North American graminoid-dominated ecosystems invaded by shrubs, from arctic tundra to Atlantic coastal dunes, to quantify patterns and controls of C inputs via aboveground net primary production (ANPP). Across a fourfold range in mean annual precipitation (MAP), a key regulator of ecosystem C input at the continental scale, shrub invasion decreased ANPP in xeric sites, but dramatically increased ANPP (>1000 g m?2) at high MAP, where shrub patches maintained extraordinarily high leaf area. Concurrently, the relationship between [...]

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Provenance

Data source
File Processing
File Process
Type
End Note
Reference Item
4001 records
Reference File
nwblcc-20160306.xml

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1111/j.1365-2486.2007.01512.x
ISSN http://sciencebase.gov/vocab/identifierScheme 1365-2486

Citation Extension

journalGlobal Change Biology
parts
typeNotes
value4489
typePages
value615-623
typeVolume
value14
typeNumber
value3
citationTypeJournal Article

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