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FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem-Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities
FLUXNET is a global network of micrometeorological flux measurement sites that measure the exchanges of carbon dioxide, water vapor, and energy between the biosphere and atmosphere. At present over…
Survey and synthesis of intra‐ and interspecific variation in stomatal sensitivity to vapour pressure deficit
Responses of stomatal conductance (gs) to increasing vapour pressure deficit (D) generally follow an exponential decrease described equally well by several empirical functions. However, the magnitude…
Gap filling strategies for defensible annual sums of net ecosystem exchange
Environmental controls over carbon dioxide and water vapor exchange of terrestrial vegetation
The Effect of Vegetation Density on Canopy Sub-Layer Turbulence
The canonical form of atmospheric flows near theland surface, in the absence of a canopy, resembles a rough-wallboundary layer. However, in the presence of an extensive and densecanopy, the flow…
An approximate analytical model for footprint estimation of scalar fluxes in thermally stratified atmospheric flows
ONE- and TWO-Equation Models for Canopy Turbulence
The predictive skills of single- and two-equation (or K-e) models to compute pro- files of mean velocity (U), turbulent kinetic energy (K), and Reynolds stresses ðu 0 w 0 Þ are compared against…
Soil fertility limits carbon sequestration by forest ecosystems in a CO2-enriched atmosphere
Evidence is presented that estimates of increases in carbon sequestration of forests, which is expected to partially compensate for increasing CO2 in the atmosphere, are unduly optimistic and that fertility can restrain the response of woodcarbon sequestration to increased atmospheric CO2.
Observed increase in local cooling effect of deforestation at higher latitudes
It is shown that surface air temperature is lower in open land than in nearby forested land, and latitudinal dependence is consistent with theoretical expectation of changes in energy loss from convection and radiation across latitudes in both the daytime and night-time phase of the diurnal cycle, the latter of which remains uncertain in climate models.