Figure 3.
Micrometeorological gradient spanning the transition from forested to open habitats. Data are shown for (a,c,e) pasture at the edge of tropical rainforest and (b,d,f) temperate rainforest, plotted against distance into the forest (negative values for distance = pasture; positive values = forest). Micrometeorological observations of photosynthetically active radiation (PAR), vapour pressure deficit (VPD) and surface windspeed are shown for (a) Mexico [54] and (b) New Zealand [55]. From these data, net radiation, latent and sensible heat fluxes are calculated using the model outlined in appendix A for the (c) tropical and (d) temperate forests. Calculated values of potential evapotranspiration (PET) and boundary layer conductance (ga) are also shown for the same (e) tropical and (f) temperate localities.