Carbon and nitrogen distribution in oak-hickory forests distributed along a productivity gradient

Conference · Fri Dec 31 04:00:00 EST 1993

OSTI ID:140303

Reber, R T; Kaczmarek, D J; Pope, P E; Rodkey, K S ^[1]

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1. Purdue Univ., West Lafayette, IN (United States)

Biomass, carbon and nitrogen pools were determined for oak-hickory forests of varying productivity. Little information of this type is available for the central hardwood region. Six oak-hickory dominated forests were chosen to represent a range in potential site productivity as influenced by soil type, amount of recyclable nutrients and available water. Biomass, carbon and nitrogen storage were determined for the following components: above ground standing biomass, fine root biomass, forest floor organic layers and litterfall. As site sequestered at each site was dependent more on the amount of living biomass at each site Litterfall, to some extent, increased with increasing site productivity. As potential site productivity decreased, total fine root biomass increased. The data suggest that as site quality decreased fine root production and turnover may become as important in nutrient cycling as annual litterfall.

• Research Organization: National Renewable Energy Lab., Golden, CO (United States)
• OSTI ID: 140303
• Report Number(s): NREL/CP--200-5768-Vol.1; CONF-9308106--Vol.1; ON: DE93010050
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
55 BIOLOGY AND MEDICINE
BASIC STUDIES
BIOMASS
CARBON
ECOLOGICAL CONCENTRATION
FOREST LITTER
FORESTS
NITROGEN
NUTRIENTS
OAKS
PRODUCTIVITY
ROOTS
SOILS
SPATIAL DISTRIBUTION