+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Component and whole-system respiration fluxes in northern deciduous forests

Component and whole-system respiration fluxes in northern deciduous forests

Tree physiology 24(5): 493-504

We measured component and whole-system respiration fluxes in northern hardwood (Acer saccharum Marsh., Tilia americana L., Fraxinus pennsylvanica Marsh.) and aspen (Populus tremuloides Michx.) forest stands in Price County, northern Wisconsin from 1999 through 2002. Measurements of soil, leaf and stem respiration, stem biomass, leaf area and biomass, and vertical profiles of leaf area were combined with biometric measurements to create site-specific respiration models and to estimate component and whole-system respiration fluxes. Hourly estimates of component respiration were based on site measurements of air, soil and stem temperature, leaf mass, sapwood volume and species composition. We also measured whole-system respiration from an above-canopy eddy flux tower. Measured soil respiration rates varied significantly among sites, but not consistently among dominant species (P < 0.05 and P > 0.1). Annual soil respiration ranged from 8.09 to 11.94 Mg C ha-1 year-1. Soil respiration varied linearly with temperature (P < 0.05), but not with soil water content (P > 0.1). Stem respiration rates per unit volume and per unit area differed significantly among species (P < 0.05). Stem respiration per unit volume of sapwood was highest in F. pennsylvanica (up to 300 micromol m3 s-1) and lowest in T. americana (22 micromol m3 s-1) when measured at peak summer temperatures (27 to 29 degrees C). In northern hardwood stands, south-side stem temperatures were higher and more variable than north-side temperatures during leaf-off periods, but were not different statistically during leaf-on periods. Cumulative annual stem respiration varied by year and species (P < 0.05) and averaged 1.59 Mg C ha-1 year-1. Leaf respiration rates varied significantly among species (P < 0.05). Respiration rates per unit leaf mass measured at 30 degrees C were highest for P. tremuloides (38.8 nmol g-1 s-1), lowest for Ulmus rubra Muhlenb. (13.1 nmol g-1 s-1) and intermediate and similar (30.2 nmol g-1 s-1) for T. americana, F. pennsylvanica and Q. rubra. During the growing season, component respiration estimates were dominated by soil respiration, followed by leaf and then stem respiration. Summed component respiration averaged 11.86 Mg C ha-1 year-1. We found strong covariance between whole-ecosystem and summed component respiration measurements, but absolute rates and annual sums differed greatly.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 004084499

Download citation: RISBibTeXText

PMID: 14996654

DOI: 10.1093/treephys/24.5.493

Related references

Leaf area index is the principal scaling parameter for both gross photosynthesis and ecosystem respiration of Northern deciduous and coniferous forests. Tellus Series B Chemical and Physical Meteorology 60(2): 129-142, 2008

Fluxes of CO2, CH4 and N2O from drained organic soils in deciduous forests. Soil biology and biochemistry 37(6): 1059-1071, 2005

Location of pure deciduous forests in the area of the southern part of northern conifer forests. Mitteilungen 1 (1) 49-64, 1975

Deciduous forests Carbon and water fluxes, balances and ecophysiological determinants. Valentini, Riccardo , Reprint Author Fluxes of carbon water and energy of European forests: 55-70, 2003

Nutrient elements in the litterfall of deciduous broadleaved forests and evergreen coniferous forests in northern Hokkaido, Japan. Research Bulletins of the College Experiment Forests, Hokkaido University 48(2): 307-323, 1991

Stand structure and litter production of deciduous broadleaved forests and evergreen coniferous forests in northern Hokkaido. Research Bulletins of the College Experiment Forests, Hokkaido University 48(1): 115-155, 1991

Characteristics of CO2 fluxes in cool-temperate coniferous and deciduous broadleaf forests in Japan. Phyton Horn 45(4): 73-80, 2005

Soluble organic and inorganic nutrient fluxes in clearcut and mature deciduous forests. Soil Science Society of America journal 64(3): 1068-1077, 2000

Decomposition process and dynamics of nutrient elements in deciduous broadleaved forests and evergreen coniferous forests of northern Hokkaido, Japan. Research Bulletins of the College Experiment Forests, Hokkaido University 48(2): 325-353, 1991

The importance of root respiration in annual soil carbon fluxes in a cool-temperate deciduous forest. Agricultural and Forest Meteorology 134(1/4): 95-101, 2005

Relative linkages of canopy-level CO₂ fluxes with the climatic and environmental variables for US deciduous forests. Environmental Management 55(4): 943-960, 2015

Changing perspectives on the role of the soil seed bank in northern temperate deciduous forests and in tropical lowland rain forests: parallels and contrasts. Perspectives in Plant Ecology, Evolution and Systematics 8(1): 3-21, 2006

Significance of soil respiration in determining seasonal and annual net carbon dioxide fluxes from a mid-latitude deciduous forest. Ecological Society of America Annual Meeting Abstracts 87: 242-243, 2002

Measurements of fluxes of particles, ozone, nitrogen oxides and carbon dioxide to coniferous and deciduous forests. Biosphere atmosphere exchange of pollutants and trace substances: experimental and theoretical studies of biogenic emissions and of pollutant deposition: 391-396, 1997

Regeneration of Fagus crenata experimentally managed by a shelterwood system 33 or 54 years after cutting in forests with deciduous shrub-type undergrowth in the Tohoku district, northern Honshu, Japan. 2006