Biogas systems for combined heat-and-power production based on energy crops have been criticized for their relatively high GHG mitigation cost in comparison to other bioenergy pathways such as short-rotation wood or straw [28].
That meant money, loads of it — and the Cubs, who had constructed a World Series-ready rotation of Wood, Prior, Carlos Zambrano and Greg Maddux, ponied up a three-year, $32.5 million contract.
Second, modification of other aspects of forest management (i.e. rotation length, dead wood and green tree retention, thinning regimes) is likely to contribute to further biodiversity gains using spruce birch polycultures than spruce monocultures.
The Cubs have marched along by depending on a superb rotation that features Wood, Mark Prior, Carlos Zambrano and Matt Clement, and by getting enough offense from players like Sammy Sosa and Moises Alou.
While, for example, Nabuurs et al. [23] support timber harvesting, Luyssaert et al. [24] recommend longer rotation periods and no wood usage.
Main drivers for the net present value of forestry are income from carbon sequestration, wood increment, rotation period length, discount rates, planting costs and wood prices.
While, for example, Nabuurs et al. [ 23] support timber harvesting, Luyssaert et al. [ 24] recommend longer rotation periods and no wood usage.
Long-lived plants such as eucalypts encounter various abiotic and biotic stresses throughout their lifetimes that affect growth and the quality of the wood at rotation age.
Biomass fuels considered for cofiring include wood waste, short rotation woody crops, short rotation herbaceous crops (e.g., switchgrass), alfalfa stems, various types of manure, landfill gas and wastewater treatment gas.
The extent of suitable "D1" SRC parcels in the study area ranged between a minimum of 668 ha for the "ecological benefits" scenario (compared to all three crop rotations and the fresh wood chip production pathway) and a maximum of 5074 ha for the "income first" scenario (compared to a "ORWB" rotation and fresh wood chip production pathway).
The objective of this study was to evaluate the feasibility of producing structural products from shorter rotations through examination of wood properties of younger cypress trees.
