reference : Variation among biomes in temporal dynamics of aboveground primary production

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/reference/ece16fcf-8f72-4402-a0d1-4b32608d42b2
Bibliographic fields
reftype Journal Article
Abstract Interannual variability in aboveground net primary production (ANPP) was assessed with long-term (mean = 12 years) data from 11 Long Term Ecological Research sites across North America. The greatest interannual variability in ANPP occurred in grasslands and old fields, with forests the least variable. At a continental scale, ANPP was strongly correlated with annual precipitation. However, interannual variability in ANPP was not related to variability in precipitation. Instead, maximum variability in ANPP occurred in biomes where high potential growth rates of herbaceous vegetation were combined with moderate variability in precipitation. In the most dynamic biomes, ANPP responded more strongly to wet than to dry years. Recognition of the fourfold range in ANPP dynamics across biomes and of the factors that constrain this variability is critical for detecting the biotic impacts of global change phenomena.%U ; http://science.sciencemag.org/content/sci/291/5503/481.full.pdf
Author Knapp, Alan K.; Smith, Melinda D.
DOI 10.1126/science.291.5503.481
Issue 5503
Journal Science
Pages 481-484
Title Variation among biomes in temporal dynamics of aboveground primary production
Volume 291
Year 2001
Bibliographic identifiers
_record_number 21591
_uuid ece16fcf-8f72-4402-a0d1-4b32608d42b2