The data not collected on community forestry

Conservation and development practitioners increasingly promote community forestry as a way to conserve ecosystem services, consolidate resource rights, and reduce poverty. However, outcomes of community forestry have been mixed; many initiatives failed to achieve intended objectives. There is a rich literature on institutional arrangements of community forestry, but there has been little effort to examine the role of socioeconomic, market, and biophysical factors in shaping both land-cover change dynamics and individual and collective livelihood outcomes. We systematically reviewed the peer-reviewed literature on community forestry to examine and quantify existing knowledge gaps in the community-forestry literature relative to these factors. In examining 697 cases of community forest management (CFM), extracted from 267 peer-reviewed publications, we found 3 key trends that limit understanding of community forestry. First, we found substantial data gaps linking population dynamics, market forces, and biophysical characteristics to both environmental and livelihood outcomes. Second, most studies focused on environmental outcomes, and the majority of studies that assessed socioeconomic outcomes relied on qualitative data, making comparisons across cases difficult. Finally, there was a heavy bias toward studies on South Asian forests, indicating that the literature on community forestry may not be representative of decentralization policies and CFM globally

Departure from the vogel behaviour in the glass transition region-thermally stimulated recovery, creep and dynamic mechanical analysis studies

In this work the study of the dynamics of the segmental motions close to Tg of a poly(methyl methacrylate), PMMA, network was analysed by distinct mechanical spectroscopy techniques. Three techniques were employed: dynamic mechanical analysis (DMA), creep and thermally stimulated recovery (TSR). The time–temperature superposition principle was applied to the DMA and creep results, and master curves were successfully constructed. A change from a Vogel to an Arrhenius behaviour was observed in these results. Above Tg it was found a distinct temperature dependence for the retardation times calculated from creep and the relaxation times calculated from DMA. This unexpected behaviour was attributed to the merging of the a and the b relaxations that occurs in PMMA systems. The apparent activation energies ðEaÞ were also calculated from DMA, creep and TSR experiments. Above Tg the Ea values obtained agreed very well for all the techniques. In addition, the fragility exhibited by this material was investigated by the mechanical spectroscopy techniques referred above and by differential scanning calorimetry (DSC). The obtained values of the fragility index m indicated that the PMMA network is a kinetically fragile system. The thermodynamic manifestation of the fragility was also analysed

Forests, trees and poverty alleviation: Policy implications of current knowledge

Major advances have been made over the past two decades in our understanding of the contribution forests and trees outside forests make to human well-being across the globe. Yet this knowledge has not always been incorporated into broader poverty and development policy agendas. The result is a missed opportunity to effectively and sustainably reach national and international poverty alleviation goals. Here, we address the need for greater integration of forests and trees in development policy. We distil five key findings based on the current evidence base and discuss their implications for decision-makers. We find that (1) forests and trees are critical to global efforts to end poverty but (2) their benefits to human well-being are unevenly distributed. Although the evidence indicates that (3) forests and trees can help the rural poor as they face profound global changes, it also shows that (4) poorly aligned forest and land use policies and programmes may lead to excessive costs being borne by the poor. However, we do find that (5) policy and management measures exist that can enable forests and trees to effectively address poverty goals even as there is no ‘one size fits all’ solution. Key overarching policy implications of these findings include the need to integrate forests and trees more explicitly into land-use planning and poverty reduction programs, strengthen forest property rights, self-governance and technical skills of forest-reliant communities, and carefully tailor policy measures to the context in which they are implemented

Forests, trees and poverty alleviation: Policy implications of current knowledge

Major advances have been made over the past two decades in our understanding of the contribution forests and trees outside forests make to human well-being across the globe. Yet this knowledge has not always been incorporated into broader poverty and development policy agendas. The result is a missed opportunity to effectively and sustainably reach national and international poverty alleviation goals. Here, we address the need for greater integration of forests and trees in development policy. We distil five key findings based on the current evidence base and discuss their implications for decision-makers. We find that (1) forests and trees are critical to global efforts to end poverty but (2) their benefits to human well-being are unevenly distributed. Although the evidence indicates that (3) forests and trees can help the rural poor as they face profound global changes, it also shows that (4) poorly aligned forest and land use policies and programmes may lead to excessive costs being borne by the poor. However, we do find that (5) policy and management measures exist that can enable forests and trees to effectively address poverty goals even as there is no ‘one size fits all’ solution. Key overarching policy implications of these findings include the need to integrate forests and trees more explicitly into land-use planning and poverty reduction programs, strengthen forest property rights, self-governance and technical skills of forest-reliant communities, and carefully tailor policy measures to the context in which they are implemented