Temperature and Evapotranspiration Gradients of the White Mountains, New Hampshire, U.S.A.

Abstract
Air temperatures and soil moisture percentages were measured below forest canopies along an environmental gradient in the White Mountains of New Hampshire, USA. The following gradients of decline with altitude were estimated from these data: within-forest air temperature, growing degree-days (0.degree. C base), and potential and actual evapotranspiration. These gradients provide a basis for the development of predictors for rates of ecologically significant phenomena such as water balance, net primary production and decomposition rates.