Abstract
AbstractMicrorelief and associated soil characteristics were related to differences in soil water regime and diameter growth response of 40‐year‐old loblolly pines (Pinus taeda L.). Growth on flat sites between mounds about 0.6 m high greatly exceeded that on the mounds, but variability in growth rate was likewise greater on flats. Soil water recharge from summer or fall showers was related to microrelief and antecedent water status. Recharge on flat sites resulted in accelerated growth evidenced by dendrometer band measurements and by zones of earlywood‐type cells within the latewood. The soil water regime and tree growth responses indicate an unstable environment on flat sites that probably affects tree rooting and, in time, tree susceptibility to bark beetle attack.
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