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Forest Carbon Estimation Using the Forest Vegetation Simulator
Interest in options for forest-related greenhouse gas mitigation is growing, and so is the need to assess the carbon implications of forest management actions. Generating estimates of key carbon pools can be time consuming and cumbersome, and exploring the carbon consequences of management alternatives is often a complicated task. In response to this, carbon reporting capability has been added to the Forest Vegetation Simulator (FVS) growth and yield modeling system, allowing users to produce carbon reports along with traditional FVS outputs. All methods and computations are consistent with Intergovernmental Panel on Climate Change (IPCC) Good Practice Guidance and U.S. voluntary carbon accounting rules and guidelines. We briefly describe the FVS system, outline the carbon pools estimated, and provide an overview of the data requirements, capabilities, features, and limitations of the model and the carbon reports. We also review common questions and pitfalls encountered by users when running the model.
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Estimates of Forest Ecosystem Carbon for Common Reforestation Scenarios in the United States
"This document presents forest carbon stocks and stand-level total volume for common reforestation scenarios in the United States. Eight geographic regions and 13 forest types are represented. These tables complement recent estimates of forest carbon stocks in the conterminous United States (Hoover et al. 2021) and were developed with a similar approach, using the USDA Forest Service’s Forest Vegetation Simulator and starting from a "bare ground" condition. The regions, types, and scenarios were selected based on data from the Forest Service and reforestation partner organizations and reflect current commonly used reforestation practices. Two sets of estimates are provided for each region ...
Selecting a Minimum Diameter for Forest Biomass and Carbon Estimation
Forest inventories are traditionally designed to produce estimates of merchantable timber volume but are increasingly used to estimate stand-level biomass or carbon. Since inventory is volume-focused, it is common practice to tally stems 5 inches and greater in diameter (at breast height; d.b.h.). When estimating carbon or biomass, practitioners may be concerned about the effect of omitting smaller stems from the inventory. We present summaries to provide indicators of when smaller diameters may be less important for an accurate estimate to assist those foresters considering adding carbon estimates to traditional inventory objectives. Small stems (e.g., 2 or 3 inches d.b.h.) may contribute a...
Field Measurements for Forest Carbon Monitoring
In the summer of 2003, a workshop was held in Portsmouth, NH, to discuss land measurement techniques for the North American Carbon Program. Over 40 sci- tists representing government agencies, academia and nonprofit research organi- tions located in Canada, the US and Mexico participated. During the course of the workshop a number of topics were discussed, with an emphasis on the following: • The need for an intermediate tier of carbon measurements. This level of study would be more extensive than state-level inventories of the US Forest Service Forest Inventory and Analysis Program, but less detailed than intensive ecos- tem studies sites such as those in Long Term Ecological Research net...
The Potential of U.S. Forest Soils to Sequester Carbon and Mitigate the Greenhouse Effect
Much attention has been given to above ground biomass and its potential as a carbon sink, but in a mature forest ecosystem 40 to 60 percent of the stored carbon is below ground. As increasing numbers of forests are managed in a wide diversity of climates and soils, the importance of forest soils as a potential carbon sink grows. The Potenti
