Altcrnativc forcst resource use- outdoor recreation and rural economies

(DOI: f 0.4029/2008jem rest5nol3) Since the I 980s demand for outdoor recreation has been increasing in the United States. Growing income and cl'range in lifestyles have been cited as factors contributing to the increase in demand. This period also coincided with a decline in timber prices and loss of income to forest land owners. Forest-based recreation has intensified as a part of forest management activities and has compensated the fall in timber demand and contributed income to forest land owners that enhanced rural economies. About 7 5o/o of Alabama is under forest cover but little is known about forest recreation utilization and its effects on local communities. The objective ofthis study was to assess the relationship betweenforestry andhunting/wildlife watching and its impactonproperry owners and the multiplier effect on rural economies. Expenditr.re figures for hunting and wildlife watching from the 2006 National Fish and Wildlife Survey, and IMPLANAlabama economic data was used for the analysis. The result suggested that a dollar spent in hunting and wildlife will generate $2.04 in the economy. Hurting and wildlife eams 55 % and forestry eams 35 % while the rest of the indushies share 10%. Furthermore, value added distribution showed that 38 % accrues to property owners in the form ofproprietor's income and other properly income. It is fair to say that outdoor recreation is a s good source of income to forestland owners and also has a multiplier effect on rural economies

Size-Dependent Lattice Structure and Confinement Properties in CsPbI₃ Perovskite Nanocrystals: Negative Surface Energy for Stabilization

CsPbI₃ nanocrystals with narrow size distributions were prepared to study the size-dependent properties. The nanocrystals adopt the perovskite (over the nonperovskite orthorhombic) structure with improved stability over thin-film materials. Among the perovskite phases (cubic α, tetragonal β, and orthorhombic γ), the samples are characterized by the γ phase, rather than α, but may have a size-dependent average tilting between adjacent octahedra. Size-dependent lattice constants systematically vary 3% across the size range, with unit cell volume increasing linearly with the inverse of size to 2.1% for the smallest size. We estimate the surface energy to be from −3.0 to −5.1 eV nm⁻² for ligated CsPbI₃ nanocrystals. Moreover, the size-dependent bandgap is best described using a nonparabolic intermediate confinement model. We experimentally determine the bulk bandgap, effective mass, and exciton binding energy, concluding with variations from the bulk α-phase values. This provides a robust route to understanding γ-phase properties of CsPbI₃

A Map of the Inorganic Ternary Metal Nitrides

Exploratory synthesis in novel chemical spaces is the essence of solid-state chemistry. However, uncharted chemical spaces can be difficult to navigate, especially when materials synthesis is challenging. Nitrides represent one such space, where stringent synthesis constraints have limited the exploration of this important class of functional materials. Here, we employ a suite of computational materials discovery and informatics tools to construct a large stability map of the inorganic ternary metal nitrides. Our map clusters the ternary nitrides into chemical families with distinct stability and metastability, and highlights hundreds of promising new ternary nitride spaces for experimental investigation--from which we experimentally realized 7 new Zn- and Mg-based ternary nitrides. By extracting the mixed metallicity, ionicity, and covalency of solid-state bonding from the DFT-computed electron density, we reveal the complex interplay between chemistry, composition, and electronic structure in governing large-scale stability trends in ternary nitride materials

A Common-Pool Resource Approach to Forest Health: The Case of the Southern Pine Beetle

The southern pine beetle, Dendroctonus frontalis, is a major threat to pine forest health in the South, and is expected to play an increasingly important role in the future of the South’s pine forests (Ward and Mistretta 2002). Once a forest stand is infected with southern pine beetle (SPB), elimination and isolation of the infested and immediately surrounding trees i

New Opportunities for Social Research on Forest Landowners in the South

Many of the issues of importance to forest management and policy have important social components. Yet, in the South, social research on forests has lagged behind economic and biophysical research. In this paper we identify some important new opportunities for social research on forests in the South, focusing on non industrial private forests because they represent the majority of the South\u27s timberland. We identify six important areas for social research. One, research on diversity of forest land owners and how different landowners relate to and use their forests. Two, social relationships of forest landowners, including household and family structure and social network analysis. Three, research that applies recent advances in common pool resource management to issues such as forest health and water quality. Four, qualitative research that seeks to understand how environmental values are constructed and operate in complex decision-making processes and social relationships. Five, work on forest-related rural development, particularly the in poor, non-urbanizing areas of the South that have been affected by globalization and declines in agriculture. Six, research on urbanization and forests

Black Family Forest Owners in the Southeastern United States: A Case Study in Six Counties

The USDA Forest Service, National Woodland Owner Survey asks family forest owners (FFOs) about their attitudes and intentions regarding their forestland. Historically, the number of responses from Black or African American FFOs has been very low, but it is uncertain whether this is because of nonresponse bias or that there are relatively few Black FFOs. To get a better understanding of these FFOs and to test a method to increase response rates, an intensified survey effort was conducted in three southern states: Alabama, North Carolina, and South Carolina. Analyses indicate that Black FFOs have slightly different objectives, activities, and ownership structure for their forestland than their White counterparts, who have traditionally represented the majority of FFOs. Study Implications: By conducting an experiment to increase response rates from Black family forest owners to the National Woodland Owner Survey, we find traditional methodology is not effective. More importantly, we see this group has moderately different responses than their White counterparts. This has wide ranging implications for landowner assistance programs and other initiatives that have been designed on the premise that we are accurately capturing responses from all woodland owners

Forest ecosystem-service transitions: the ecological dimensions of the forest transition

New forests are expanding around the world. In many regions, regrowth rates are surpassing deforestation rates, resulting in "forest transitions," or net gains in forest cover. Typically measured only in terms of aggregate "forest cover" change, these new forests are ecologically distinct from each other and from those originally cleared. We ask, what are the ecological attributes, goods, and services we might expect from different pathways of forest recovery? To address this question, we proposed a typology of forest transitions that reflects both their social drivers and ecological outcomes: tree plantation, spontaneous regeneration, and agroforestry transitions. Using case studies, we illustrate how the ecological outcomes of each transition type differ and change over time. We mapped the global distribution of forest-transition types to identify global epicenters of each, and found that spontaneous transitions are most common globally, especially in Latin America; agroforestry transitions predominate in Europe and Central America; and plantation transitions occur in parts of Europe and Asia. We proposed a conceptual framework to understand and compare the ecological services arising from different types of forest transitions over time: forest ecosystem-service transition curves. This framework illustrates that carbon sequestration tends to be comparatively lower in agroforestry transitions, and biodiversity recovery is lower in industrial plantations. Spontaneously regenerating forests tend to have relatively high biodiversity and biomass but provide fewer provisioning and economically valuable services. This framework captures the dynamism that we observe in forest transitions, thus illustrating that different social drivers produce different types of ecosystem-service transitions, and that as secondary forests grow, these services will change over time at rates that differ among transition types. Ultimately, this framework can guide future research, describe actual and potential changes in ecosystem services associated with different types of transitions, and promote management plans that incorporate forest cover changes with the services and benefits they provide