[DOWNLOAD] "Structure and Composition of Plant Communities in Fire-Managed Grasslands at Big Oaks National Wildlife Refuge." by Proceedings of the Indiana Academy of Science # eBook PDF Kindle ePub Free
eBook details
- Title: Structure and Composition of Plant Communities in Fire-Managed Grasslands at Big Oaks National Wildlife Refuge.
- Author : Proceedings of the Indiana Academy of Science
- Release Date : January 03, 2004
- Genre: Engineering,Books,Professional & Technical,
- Pages : * pages
- Size : 225 KB
Description
ABSTRACT. Big Oaks National Wildlife Refuge, formerly Jefferson Proving Grounds, is one of Indiana's largest natural areas (approximately 22,000 ha). No studies have been conducted to quantify the grassland communities at Big Oaks National Wildlife Refuge. Establishing a baseline of information regarding the plant community composition and structure would be helpful to monitor changes resulting from current management practices. Sixty permanently-marked 10 m radius circular plots were established in three managed grassland communities within the refuge. Three vegetation layers (overstory, understory, and ground layer) were sampled during July-August 2001. Overstory trees ( 10 cm dbh) were sampled in each plot and consisted mainly of Carya ovata, Liquidamber styraciflua, and Nyssa sylvatica. The understory ( 1.5 m but 0.5 m) was sampled in sixty 2 x 2 m subplots in each grassland area. The understory was dominated by Rhus copallinum, Sassafras albidum, and Liquidamber styraciflua. The ground layer (all herbaceous species and those woody stem 0.5 m) was sampled using 1 x 1 m subplots in each grassland. Fifty-four different species were sampled in the ground layer. Andropogon virginicus and Solidago juncea were the dominant plant species in the permanent plots. Keywords: Big Oaks NWR, Indiana, fire management, grassland community, biodiversity
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