Plant‐community characteristics of bahiagrass pasture during conversion to longleaf‐pine silvopasture

Plant‐community characteristics of bahiagrass pasture during conversion to longleaf‐pine silvopasture

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Article ID: iaor20132671
Volume: 87
Issue: 3
Start Page Number: 611
End Page Number: 619
Publication Date: Jun 2013
Journal: Agroforestry Systems
Authors: , ,
Keywords: ecology
Abstract:

Silvopasture is considered a sustainable agroforestry practice as a result of benefits the system offers for biodiversity, economic returns, and environmental quality. However, little is known about temporal and spatial dynamics of forage species composition of pastures being converted to silvopasture. Research objectives were to determine (1) the response of forage species composition to a young longleaf pine (Pinus palustris Mill.)‐bahiagrass (Paspalum notatum Flugge) silvopasture versus open bahiagrass pasture, and (2) the impact that alley position relative to trees has on forage species composition in a young longleaf pine‐bahiagrass silvopasture. The research was conducted in a randomized complete block design with three replications from 2003 to 2007 at Americus, Georgia, USA in a longleaf‐pine silvopasture established in 2000 in an existing bahiagrass pasture and an adjoining bahiagrass open‐pasture. Silvopasture forage‐species composition was measured within alleys. Plant community diversity was greater in the silvopasture versus open‐pasture early in the growing season, but open‐pasture had greater diversity during the later growing season. Alley position in silvopasture also had a significant effect on understory forage species composition. This study indicated that conversion of bahiagrass pasture to longleaf‐pine silvopasture in the Southern Coastal Plain can influence plant‐community characteristics by the time trees are six to seven years old.

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