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Does sugar removal impact trees? A complex question to answer.

Two main issues relate to the sustainability of maple sugaring; tree wounding and sugar removal. In other words, does a tapped maple tree grow more wood than is compartmentalized (functionally “removed by the tree’s normal wound response process) each year and/or does sap collection take more sugar from the tree than can be readily replaced through photosynthesis? These two issues, although separate in some respects, are inextricably intertwined.

Publication:
Maple Syrup Digest
Date:
October 1, 2014

Cloudiness’ effect on refractometer measurements

Accurately measuring density is critical to the production of pure maple syrup. This article explores how impurities in syrup can affect the accuracy of tools used to measure density.

Publication:
Maple News
Date:
August 1, 2014

Counting Sugar Makers

Analysis of the 2012 U.S. Census of Agriculture’s report on the maple industry.

Publication:
Farming, the Journal of Northeast Agriculture
Date:
August 1, 2014

Reverse Osmosis for Maple Syrup Option 2

Cornell University’s Maple Specialist, Steve Childs reviews a second reverse osmosis system for a small-scale maple syrup producer. Reverse osmosis greatly reduces the time and energy spent in boiling maple syrup by pulling much of the water from the sap before the boiling process begins. Sap can be put through the system repeatedly and becomes more concentrated with each pass through the RO membrane. Boiling the concentrated sap at the end is always necessary however, as that greatly contributes to maple syrup’s rich flavor.

Date:
July 15, 2014

Reverse Osmosis for Maple Syrup Option 3

Cornell University’s Maple Specialist, Steve Childs, reviews one more reverse osmosis unit that is still applicable to the small-scale maple producer, despite this unit’s size.

Date:
July 14, 2014

Small-scale Reverse Osmosis

Cornell University’s Maple Specialist, Steve Childs looks at a small-scale reverse osmosis unit and goes through the equipment piece by piece.

Date:
July 14, 2014

Collect More Sap Without Vacuum Pumps

Using 3/16″ tubing can create non-mechanical vacuum that can increase sap yield.

Publication:
Farming, the Journal of Northeast Agriculture
Date:
July 1, 2014

Population dynamics of sugar maple through the southern portion of its range: implications for range migration

The range of sugar maple (Acer saccharum Marsh.) is expected to shift northward in accord with changing climate. However, a pattern of increased sugar maple abundance has been reported from sites throughout the eastern US. The goal of our study was to examine the stability of the sugar maple southern range boundary by analyzing its demography through the southern extent of its distribution. We analyzed changes in sugar maple basal area, relative frequency, relative density, relative importance values, diameter distributions, and the ratio of sapling biomass to total sugar maple biomass at three spatial positions near the southern boundary of the speciesÕ range using forest inventory data from the USDA Forest Service Forest Inventory and Analysis program over a 20 year observation period (1990Ð2010).

Publication:
Botany
Date:
June 11, 2014