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Related Experiment Video

Updated: May 6, 2026

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring
08:16

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Monitoring new forestry.

D Shaw1, J Greenleaf, D Berg

  • 1Olympic Natural Resources Center, College of Forest Resources, AR-10, University of Washington, 98195, Seattle, Washington, USA.

Environmental Monitoring and Assessment
|November 14, 2013
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Summary
This summary is machine-generated.

New forestry techniques require monitoring of tree growth and mortality. This study developed and costed methods for tracking live trees and snags, crucial for adaptive forest management.

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Area of Science:

  • Forestry and Silviculture
  • Ecology
  • Conservation Biology

Background:

  • New forestry practices, specifically structural retention cuttings, are being implemented in the Oregon and Washington Cascades.
  • Effective monitoring is essential for understanding the ecological impacts of these new silvicultural systems.
  • Adaptive management relies on robust data collection to inform future forest management decisions.

Purpose of the Study:

  • To develop and test techniques for monitoring live tree growth and mortality.
  • To assess the longevity of standing dead trees (snags) within managed forest stands.
  • To quantify the time and costs associated with implementing these monitoring techniques.

Main Methods:

  • Field monitoring techniques were developed and applied across eight forest units (three aggregated, five dispersed) totaling 27.8 hectares.
  • A total of 2407 live trees and snags were measured within a 25.1-hectare sample area.
  • Time and cost data were systematically recorded for field work, data entry, analysis, and report writing.

Main Results:

  • Fieldwork costs were approximately $4590, involving a 4-person crew over 6 weeks.
  • Data management and analysis costs were approximately $2000, requiring 250 person-hours.
  • The study successfully demonstrated the feasibility of monitoring tree dynamics and snag longevity in structurally complex forest stands.

Conclusions:

  • The developed monitoring techniques provide essential data for evaluating the effectiveness of new forestry practices.
  • Monitoring is a critical component of adaptive management, enabling adjustments to silvicultural systems based on observed outcomes.
  • Understanding tree and snag dynamics is fundamental to assessing the long-term ecological consequences of structural retention forestry.