The Effects of Four Water Regimes Upon the Growth of Four Bottomland Tree Species
Abstract:Seedlings of four wet-site species tupelo gum (Nyssa aquatica L.), pin oak Quercus palustris Muench.), green ash (Fraxinus pennsylvanica Marsh.), and sycamore (Platanus occidentalis L.) were grown under four moisture regimes: (1) continuously water saturated soil, (2) soil watered to moisture equivalent daily, (3) soil watered to moisture equivalent when 50 percent or more of the available water was removed and (4) soil watered to the moisture equivalent when the wilting point was reached. On the basis of height growth and total dry weight, tupelo and green ash seedlings grew best under the continuously saturated conditions. Sycamore and pin oak grew best under the moisture equivalent regime. With few exceptions seedlings of all species grown under the wilting point regime were the smallest. The significance of the results to the segregation of species along soil moisture gradients in bottomland areas is discussed.
Document Type: Journal Article
Affiliations: Professor of Forestry, Southern Illinois Univ., Carbondale
Publication date: September 1, 1965
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