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Article
Contrasting Effects of Precipitation Manipulations on Production in Two Sites within the Central Grassland Region, USA
Ecosystems
(2013)
Abstract
In grassland ecosystems, where soil water most frequently controls ecosystem processes, expected changes in precipitation and temperature may have dramatic effects on ecosystem dynamics. Previous observational studies have reported that aboveground net primary production (ANPP) in grasslands is very sensitive to changes in precipitation. Yet, we lack experimentally based evidence to support these observations. Further, most of the studies have focused solely on ANPP, neglecting belowground production (BNPP). This is an important gap in our knowledge, as BNPP represents 50% or more of total net primary production (NPP) in grasslands. Here, we present results from a 3-year water manipulation experiment (2008–2010) at two sites in the central grassland region of North America, USA. We were successful in changing the soil water content in our treatments, but these changes resulted in different, but significant responses in ANPP and BNPP at our two sites...
Disciplines
Publication Date
2013
DOI
https://doi.org/10.1007/s10021-013-9666-z
Publisher Statement
DOI 10.1007/s10021-013-9666-z
Citation Information
Peter B. Adler. "Contrasting Effects of Precipitation Manipulations on Production in Two Sites within the Central Grassland Region, USA" Ecosystems Vol. 16 Iss. 6 (2013) p. 1039 - 1051 Available at: http://works.bepress.com/peter_adler/53/