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Displaying 306 - 310 of 1605Analysis of US renewable fuels policies using a modified MARKAL model
In this research we have modified the standard US MARKAL model to include a land resource base, corn stover and miscanthus feedstocks, and new cost information for biochemical and thermochemical conversion technologies.
integrated model for assessment of sustainable agricultural residue removal limits for bioenergy systems
Agricultural residues have been identified as a significant potential resource for bioenergy production, but serious questions remain about the sustainability of harvesting residues. Agricultural residues play an important role in limiting soil erosion from wind and water and in maintaining soil organic carbon. Because of this, multiple factors must be considered when assessing sustainable residue harvest limits.
Community perceptions of state forest ownership and management: A case study of the Sundarbans Mangrove Forest in Bangladesh
The Sundarbans Mangrove Forest (SMF) is the world's largest mangrove forest and it provides livelihoods to 3.5 million forest-dependent people in coastal Bangladesh. The first study aim was to analyse the efficacy of the state property regime in managing the forest through a close examination of the relationship between property rights and mangrove conservation practices. The second study aim was to explore forest-dependent communities' (FDCs) perceptions about their participation in management and conservation practices.
elephant in the room: Absentee landowner issues in conservation and land management
In this article, we provide a synthesis of the peer-reviewed literature and state and federal policies focused on absentee landowners of forestland, rangeland, or farmland in the U.S. The synthesis indicates absentee owners, as compared to those living on the land, appear to be much more likely to live in urban areas, are less dependent financially upon the land and much more likely to own land for amenity reasons than production purposes.
2010 map estimate of annually tilled cropland within the conterminous United States
A ca. 2010, 30m resolution map depicting annually tilled areas across the conterminous United States was developed. Input sources included fouryears, spanning 2008–2011, of annual national-level coverage Cropland Data Layer (CDL) land cover classifications as produced by the National Agricultural Statistics Service. Derived total land area under tillage from the aggregate CDL product equaled 112.8million hectares (278.7million acres).