Forest Resource Inventory

Forest Resource Inventory

A forest resource inventory is a necessary step in predicting the growth and development of your forest resources. It gathers information on the forest's biological, ecological, and economic aspects, providing valuable insights for sustainable management. Key details include:

  • Data Collection Techniques: Field surveys gather information on species composition, distribution, age, and forest health. GIS will aid in the assessment of general site characteristics related to soil and water resources.

  • Timber and Non-Timber Resources: Assessing standing timber volume, quality, and potential value. Evaluating non-timber resources like wildlife habitats and recreational values.

  • Biodiversity and Ecological Assessment: Identifying flora, fauna species, and opportunities for conservation.

  • Forest Health and Threats: Identifying pests, diseases, and invasive species affecting the forest.

  • Future Growth and Yield Projections: Estimating growth potential for sustainable harvesting and regeneration.

You cannot effectively manage what has not been measured. Taking inventory of your forest resources provides valuable insights into the potential of your forest and the management necessary to realize that potential.

Forest Resource Inventory FAQs

  • Your forest will benefit from regular inventory updates, typically every 5-10 years, to support adaptive management strategies. Adaptive management involves learning from past actions and adjusting strategies based on new information. The frequency and intensity of updates may vary depending on specific management goals. In any case, the timeline of necessary inventory work should be outlined in a management plan.

  • The cost of inventory work will depend primarily on three factors.

    • The size of your forest

    • The variability of dynamics across your forest

    • The accuracy requirements of inventory work

    All things held equal, the cost per acre of inventory work is highest for:

    • Small forests

    • Diverse forests

    • High accuracy requirements

    The considerations are much larger in scope in a natural resource inventory as compared to a standard timber appraisal. If you simply want to know the market value of your timber, a timber appraisal can be conducted with less cost to you.

    • Forest Resource Inventory: Gathers comprehensive information about your forest's biological, ecological, and economic attributes. Includes all the details provided in a timber appraisal and goes beyond by offering a more comprehensive analysis. It aids in understanding your forest's current condition, as well as its potential for future growth and development.

    • Timber Appraisal: Focuses solely on estimating the market value of standing timber. Determines the financial worth of the timber for potential sale or harvesting operations.

    Let’s look at two use-case examples where you are the owner of a mature hardwood forest with a variety of tree species, size classes, and age classes.

    Example 1: You would like to conduct some timber harvest, but do not wish to clearcut your forest. After harvest, you would like to have your forest look as similar as possible to the present-day. In this example, a forest resource inventory would focus on determining the species, size, and age classes most suitable for harvest. Additionally, we may need to consider the conditions of the forest floor and how these conditions will impact the species developing in the understory after timber harvest.

    Example 2: You would like to have your forest clearcut. After clearcutting, you would like to convert the forest to a planted stand of loblolly pine. In this example, a timber appraisal will focus solely on the determining the market value of the standing timber. This inventory work will be less time consuming, and therefore cheaper than example 1. However, since the timber appraisal focuses solely on determining the value of the standing timber, it provides less comprehensive information for making alternative management recommendations compared to a forest resource inventory..