منابع مشابه
Predicting stump sprouting and competitive success of five oak species in southern Indiana
We measured 2188 oak trees (Quercus spp.) on the Hoosier National Forest in southern Indiana before and 1, 5, and 10 years after clear-cutting to determine the influence of parent tree age, diameter breast height, and site index on the probability that there was one or more living sprouts per stump: (i) 1 year after clear-cutting (sprouting probability) or (ii) that were competitively successfu...
متن کاملStump Sprout Dominance Probabilities of Five Oak Species in Southern Indiana 20 Years after Clearcut Harvesting
—Oak (Quercus spp.) stump sprouts are vital to sustaining oak’s presence and long-term dominance when regenerating oak or mixed-hardwood forests in southern Indiana. A study was initiated on the Hoosier National Forest in southern Indiana in 1987 to predict the sprouting potential and dominance probability of oaks. Before clearcut harvesting, we sampled 2,188 trees of fi ve oak species and meas...
متن کاملSoil and Tree Ring Chemistry Changes in an Oak Forest
Changes in soil chemistry due to historic large-scale disturbances, e.g. pollution inputs, storm damage, and logging, have previously been shown to cause similar changes in the nutrient concentrations found in tree rings. Repeated soil sampling in a reference watershed at the Coweeta Hydrologic Laboratory (Otto, NC) in 1970, 1990, and 2004 showed significant decreases in cation concentrations a...
متن کاملEffect of tree decline and slope aspect on the leaf morphological traits of Persian oak trees
This study was accomplished with the aim of investigating the effects of tree decline and slope aspect on leaf morphological traits and determining the indicator morphological traits that indicate the leaf diversity of Persian oak trees in relation to habitat conditions and environmental stresses in Mellah Siah forests of Ilam. Two forest habitats were selected on the northern and southern slop...
متن کاملThe Dilemma of the Cypress and the Oak Tree
I study repeated games with mediated communication and frequent actions. I derive Folk Theorems with imperfect public and private monitoring under minimal detectability assumptions. Even in the limit, when noise is driven by Brownian motion and actions are arbitrarily frequent, as long as players are sufficiently patient they can attain virtually efficient equilibrium outcomes, in two ways: sec...
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ژورنال
عنوان ژورنال: annales des sciences forestières
سال: 1993
ISSN: 0003-4312
DOI: 10.1051/forest:19930748