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Taping into red maples (Acer rubrum): Baseline analysis of soil and litter parameters in Southern New Jersey
Presenters: Carel Abboud, Ryan Hegarty, Katie Homewood
Abstract
Southern New Jersey is not currently known for its maple syrup industry, due to low predominance of sugar maples (Acer Saccharum) and environmental factors that promote sap flow. Red maples (Acer rubrum), however, are an underexploited, tappable resource not traditionally tapped due to lower sugar content. This work aims to examine the feasibility of tapping A. rubrum in Southern NJ, the impacts soil parameters have on sap production, whether sap and environmental parameters relationships exist and differ across Southern NJ, and if tapping influences environmental parameters. Soil and litter were sampled from 1x1 m quadrats around A. rubrum from 6 sites in Southern NJ (inner and outer coastal plain). GIS maps were created for each site. Soil properties that influence vegetation were examined, including soil pH, total calcium, total organic carbon, bulk density, and particle size. Soil pH was determined using a pH meter. Aqua regia digestion was used to extract soil calcium and was analyzed using flame atomic absorption spectroscopy. Total organic carbon was determined through loss of ignition using a muffle furnace. Bulk density was determined using core samples collected with a bulk density hammer. Sand percentages were identified from sieved samples collected using a sieve shaker, and clays and silts were determined using the hydrometer method. Invertebrates were extracted from litter using Berlese funnels and identified and counted using light microscopes in order to identify influences from tapping. Our initial findings suggest soil properties differ across Southern NJ and may ultimately influence syrup production and ecosystem sustainability.
Video Presentation
Poster Presentation
Additional Pictures
Figure 1: Ryan taking bulk density core samples with a bulk density hammer at a red maple site
Figure 4: pH samples and the Mettler Toledo probe used to analyze soil pH
Figure 2: Katie analyzing total calcium samples in the soil lab at Stockton University
Figure 3: Dr. Hallagan overseeing bulk density sampling at a red maple sugarbrush
Figure 5: the ROTAP sieve shaker used to analyze sand percentages
Figure 6: Carel and Hannah performing the hydrometer method to determine clay and silt percentages
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