Dataset Overview

The recent unimpeded infestation of the hemlock woolly adelgid (HWA; Adelgids tsugae) across the Northeastern U.S. is driving large-scale hemlock decline and mortality. HWA has already infested over 40% of the towns in Massachusetts and, as a result, many landowners are considering pre-emptively harvesting their eastern hemlock (Tsuga canadensis) stands. To examine the local impacts of this cutting activity, this study examined stand and ecosystem dynamics in 10 hemlock-dominated sites on public and private lands where hemlocks were harvested between 1 to12 years ago with nearby uncut forests.

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To observe the local impacts of the cutting of Hemlock trees in the past 1 to 12 years on public and private lands with nearby uncut forests.

Data Collection Status

Data collection for this dataset has been completed

Start date


End date


Data Availability

This dataset is available to download from another website

Data License

Linked - Third party determines data license

Preferred Citation

Orwig D, Foster D. 2009. Impacts of Hemlock Harvesting in Central Massachusetts 2003-2009. Harvard Forest Data Archive: HF128. Available at:

Update Frequency


Maintenance Plan

Not provided


  • Harvard Forest
  • Impacts of Hemlock Harvesting in Central Massachusetts 2003-2009
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