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Sap Quality at Study Sites in the Northeast

Metadata Updated: June 15, 2024

Maple syrup is produced from the sap of sugar maple collected in the late winter and early spring. Native American tribes have collected and boiled down sap for centuries, and the tapping of maple trees is a cultural touchstone for many people in the northeast and Midwest. Because the tapping season is dependent on weather conditions, there is concern about the sustainability of maple sugaring as climate changes throughout the region. Our research addresses the impact of climate on the quantity and quality of maple sap used to make maple syrup. Sap was sampled at 6 sites across the native range of sugar maple over 2 years as part of the ACERnet collaboration. At each site we sampled 15-25 mature sugar maple trees, and an additional 10 red maple trees at 3 sites. Sap from mature trees was collected using traditional gravity tapping methods following accepted tapping guidelines for gravity tapping. Xylem sap was collected from mid-February through late April, depending on the site, on all days of sap flow. Sap volume and sugar content were measured for each tree during each collection at site. Sap samples were then frozen and send to the Food and Health Lab at Montana State University for analysis of Total Phenolic Concentration as an additional measure of quality. A sub-set of samples from each site were analyzed for individual secondary metabolites.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date May 31, 2023
Metadata Updated Date June 15, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date May 31, 2023
Metadata Updated Date June 15, 2024
Publisher Climate Adaptation Science Centers
Identifier 11b5cf6e-b77c-48df-a759-05b6b684d451
Data Last Modified 2018-10-26
Category geospatial
Public Access Level public
Bureau Code 010:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 70aea4e5-329a-4a7d-a45d-f5eb13da52b7
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -87.0811,37.0108,-70.6885,48.4309
Source Datajson Identifier True
Source Hash 8eb8b0da5cd83a8e2549e5a9d8a23a5bdfa38c6be56a457879fb5768899fd2bd
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -87.0811, 37.0108, -87.0811, 48.4309, -70.6885, 48.4309, -70.6885, 37.0108, -87.0811, 37.0108}

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