caa a22 4500 467885559 CHVBK 20180406152733.0 cr unu---uuuuu 170328e20060401xx s 000 0 eng 10.1007/s10021-006-0015-3 doi (NATIONALLICENCE)springer-10.1007/s10021-006-0015-3 Above- and Belowground Net Primary Production in a Temperate Mixed Deciduous Forest [Elektronische Daten] [Gregory Newman, Mary Arthur, Robert Muller] Our current ability to detect and predict changes in forest ecosystem productivity is constrained by several limitations. These include a poor understanding of belowground productivity, the short duration of most analyses, and a need for greater examination of species- or community-specific variability in productivity studies. We quantified aboveground net primary productivity (ANPP) over 3 years (1999-2001), and both belowground NPP (BNPP) and total NPP over 2 years (2000-2001) in both mesic and xeric site community types of the mixed mesophytic forest of southeastern Kentucky to examine landscape variability in productivity and its relation with soil resource [water and nitrogen (N)] availability. Across sites, ANPP was significantly correlated with N availability (R2 = 0.58, P = 0.028) while BNPP was best predicted by soil moisture content (R2 = 0.72, P = 0.008). Because of these offsetting patterns, total NPP was unrelated to either soil resource. Interannual variability in growing season precipitation during the study resulted in a 50% decline in mesic site litter production, possibly due to a lag effect following a moderate drought year in 1999. As a result, ANPP in mesic sites declined 27% in 2000 compared to 1999, while xeric sites had no aboveground production differences related to precipitation variability. If global climate change produces more frequent occurrences of drought, then the response of mesic sites to prolonged moisture deficiency and the consequences of shifting carbon (C) allocation on C storage will become important questions. Springer Science+Business Media, Inc., 2006 carbon allocation nationallicence interannual variability nationallicence mesic nationallicence mixed mesophytic forest nationallicence nitrogen mineralization nationallicence Quercus , soil moisture nationallicence total belowground carbon allocation nationallicence xeric nationallicence Newman Gregory Department of Forestry, University of Kentucky, 40546, Lexington, Kentucky, USA aut Arthur Mary Department of Forestry, University of Kentucky, 40546, Lexington, Kentucky, USA aut Muller Robert Department of Forestry, University of Kentucky, 40546, Lexington, Kentucky, USA aut Ecosystems Springer-Verlag; www.springer-ny.com 9/3(2006-04-01), 317-329 1432-9840 9:3<317 2006 9 10021 https://doi.org/10.1007/s10021-006-0015-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10021-006-0015-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Newman Gregory Department of Forestry, University of Kentucky, 40546, Lexington, Kentucky, USA aut NATIONALLICENCE 700 1- Arthur Mary Department of Forestry, University of Kentucky, 40546, Lexington, Kentucky, USA aut NATIONALLICENCE 700 1- Muller Robert Department of Forestry, University of Kentucky, 40546, Lexington, Kentucky, USA aut NATIONALLICENCE 773 0- Ecosystems Springer-Verlag; www.springer-ny.com 9/3(2006-04-01), 317-329 1432-9840 9:3<317 2006 9 10021 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer