Determining Costs, Product Recovery Factors, and Environmental Impacts for Biomass Harvest Treatments in Northeastern Forests
| 项目名称： | Determining Costs, Product Recovery Factors, and Environmental Impacts for Biomass Harvest Treatments in Northeastern Forests |
| 摘要： | The purpose of this work is to establish the initial study sites as part of a future network of similar sites on which biomass harvesting treatments are implemented and pre- and post-harvest ecological variables are measured. 1. Assess costs, outputs and environmental conditions resulting from four harvesting treatments likely to be applied in Pennsylvania forests: 1) a clearcut regeneration harvest in a mature sawtimber stand; 2) a first-cut shelterwood harvest in a mature stand; 3) a high-grade harvest in a mature stand; and 4) an improvement thinning in an immature stand. 2. ENVIRONMENTAL MEASUREMENTS. Establish sample plots within each site on which pre- and post-harvest yield and ecological variables will be measured and compared both within and among the different treatments. Variables measured and analyzed will include: 1) soil compaction effects; 2) removal and retention of macronutrients (N, P, K, Ca, Mg); 3) damage to residual trees and advanced regeneration; 4) overstory species composition and volumes; and, 5) understory species composition, density, and stem quality. 3. ECONOMIC MEASUREMENTS. Measure harvest and transportation costs associated with biomass removal on each site. Observations will be made on: 1) mechanized felling; 2) skidding; 3) chipping; 4) loading for off-site transportation; and, 5) transportation from the harvest site to the mill. |
| 状态： | Completed |
| 资金： | 99825.00 |
| 资助组织： | Research and Innovative Technology Administration |
| 项目负责人： | Johnson, Shawn |
| 执行机构： | Pennsylvania State University, University Park |
| 开始时间： | 20080701 |
| 实际结束时间： | 20110630 |
| 主题领域： | Energy；Environment；Transportation (General)；I15: Environment |
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