Utilization of Woody Residues to Produce Bioenergy by Primary Forest Products Manufacturers in the Southern United States

Woody residues are byproducts with high lignocellulosic content, such as mill residues, logging residues, and other woody waste. This study estimated the impact of different mill characteristics, procurement attributes, constraints, and geospatial features on the utilization of woody residues to produce bioenergy by primary forest products manufacturers in the southern United States. Data were collected using a mail survey, and USDA and Esri geodatabases. Data analysis was conducted using analysis of variance, two-stage least squares, binary logit, and spatial logistic regression models. Approximately 70% of mills utilized woody residues for bioenergy purposes and 11% were willing to utilize additional logging residues to produce electricity. Mills were willing to pay US$12 (2012 dollars) per metric ton of logging residues at the mill gate and haul them for up to 93 kilometers. Mills with a larger capacity to utilize woody residues were more willing to utilize additional logging residues, pay a higher gate price, and haul them over longer distances. Regarding a mill type, pulp, paper, and paperboard mills and composite wood products mills were the largest woody residue utilizers and were willing to increase utilization of logging residues, pay higher prices, and haul them over longer distances. Utilization of woody residues increased with a processing capacity increase, equipment upgrades, and lower transportation costs logging residues. Mill willingness to utilize additional logging residues was higher for mills with the larger utilization of woody residues, lower quantities of disposable mill residues, anticipated equipment upgrades, and low importance for lack of storage space. Mills were more likely to utilize additional logging residues within proximity to a sawmill; pulp, paper, and paperboard mill; and a major road system, and less likely if a mill was in the vicinity of a river, forest, and mill producing other forest products. Results will help formulate future bioenergy policies, guide biomass energy investments and financial incentives, and help mill and land managers make more informed decisions regarding production and utilization of woody biomass. Future research is needed to evaluate the feasibility of utilizing logging residues by other facilities such as power plants and bioenergy facilities

Utilization of Woody Residues to Produce Bioenergy by Primary Forest Products Manufacturers in the Southern United States

Woody residues are byproducts with high lignocellulosic content, such as mill residues, logging residues, and other woody waste. This study estimated the impact of different mill characteristics, procurement attributes, constraints, and geospatial features on the utilization of woody residues to produce bioenergy by primary forest products manufacturers in the southern United States. Data were collected using a mail survey, and USDA and Esri geodatabases. Data analysis was conducted using analysis of variance, two-stage least squares, binary logit, and spatial logistic regression models. Approximately 70% of mills utilized woody residues for bioenergy purposes and 11% were willing to utilize additional logging residues to produce electricity. Mills were willing to pay US$12 (2012 dollars) per metric ton of logging residues at the mill gate and haul them for up to 93 kilometers. Mills with a larger capacity to utilize woody residues were more willing to utilize additional logging residues, pay a higher gate price, and haul them over longer distances. Regarding a mill type, pulp, paper, and paperboard mills and composite wood products mills were the largest woody residue utilizers and were willing to increase utilization of logging residues, pay higher prices, and haul them over longer distances. Utilization of woody residues increased with a processing capacity increase, equipment upgrades, and lower transportation costs logging residues. Mill willingness to utilize additional logging residues was higher for mills with the larger utilization of woody residues, lower quantities of disposable mill residues, anticipated equipment upgrades, and low importance for lack of storage space. Mills were more likely to utilize additional logging residues within proximity to a sawmill; pulp, paper, and paperboard mill; and a major road system, and less likely if a mill was in the vicinity of a river, forest, and mill producing other forest products. Results will help formulate future bioenergy policies, guide biomass energy investments and financial incentives, and help mill and land managers make more informed decisions regarding production and utilization of woody biomass. Future research is needed to evaluate the feasibility of utilizing logging residues by other facilities such as power plants and bioenergy facilities

Randomized controlled trial comparing outcome of hybrid Ilizarov versus distal tibial metaphyseal locking plate (P) for treatment of distal tibial fractures in adults

Background: Distal tibia fractures include extra-articular fractures of the metaphysis and the more severe intra-articular tibial plafond or pilon fractures.Several treatment methods have been recommended for the treatment of these injuries, with a recent emphasis on minimally invasive techniques and Ilizarov technique also. Several studies regarding distal tibial fracture treatment are available. Few of them are only randomized controlled trial. So, we conducted this research comparing distal tibial plating (P) versus hybrid Ilizarov (HI) for treatment of distal tibial fractures.Methods: The randomized controlled trial was conducted in B.P. Koirala Institute of Health Sciences, a tertiary care hospital in Eastern Nepal, over a period of fifteen months from June 2015 to August 2016. Patient in group A underwent HI fixation, and group B underwent P.Results: Gender ratio for male: female was 2.63 in HI, 1.35 in P group. Mean age was 47.03±15.93 and 42.1±12.788 for HI and P respectively. Most fractures in both group belonged to AO A3 type. Most surgeries were done at interval of 1 day to 1 week. Mean hospital stay was 6.43±4.545 and 4.93±4.676 for HI and P respectively. Mean Lower extremity functional score (LEFS) was 66.55 in HI and 67.15 in P group. Mean Percentage of maximal function (LEFS/80 *100) was 83.56. Three cases among 40 cases in P had infection but no infection in HI group was seen at the end of 12th week follow up.Conclusions: Our study showed that there is no significant difference in terms of LEFS criteria, union, fracture alignment, ROM (knee, ankle), infection and other outcome measures between HI fixation and P in the treatment of distal tibia fracture in adults

Demand and Supply of Forest Products in Bandevi Buffer Zone Community Forest, Chitwan National Park, Nepal

Buffer Zone Community Forestry (BZCF) in the Chitwan National Park (CNP) started with an objective to engage locals and fulfill their resource needs without jeopardizing conservation. This study estimates the forest product demand and supply of fuelwood, fodder, and timber in Bandevi BZCF user group. Data was collected using stratified random sampling and forest inventory using the quadrate method. Results indicated Bandevi BZCF conditions improved since its handover to the community. However, the study estimated a deficit of 26173 cubic meters per year of timber, 3.21 million tonnes per year (Mt/yr) of fodder, and 0.12 Mt/yr of fuelwood. Deficits were fulfilled from agricultural lands outside BZCF and illegal collection from the Bharandavar corridor forest and CNP. BZCF program is a success in improving forest conditions and needs continuation. Policy and programs must focus primarily on livelihood improvement and income generations to reduce the dependency of local people on the forest

A Study of Climate Variability and Socioeconomic Impact on Tourism Industry of Nepal

In Nepal, tourism is the second largest industry after agriculture. Furthermore, Nepal offers numerous opportunities for adventurous outdoor recreation, especially in the Himalayas, and attracts touristsfrom all over the World. However, future prosperity of Nepal’s tourism industry might be affected by a changing climate and a socioeconomic environment. A log-level regression model is employed to estimate the impact of climatic and socioeconomic factors on the number of international tourists visiting Nepal. Climatic estimates indicated that an increase in temperature did not have a significant impact on the numbers of international tourist arrival. Results show that the number of international tourists visiting Nepal was positively associated with GDP and population growth, inflation rate, and an exchange rate. These results help policy makers for facilitating growth of tourism industry and its adaptability to climate change in Nepal

Effect of gender preference on fertility: cross-sectional study among women of Tharu community from rural area of eastern region of Nepal

BACKGROUND: Son preference is predominant in developing countries especially South Asian countries and its effect is most visible when the fertility is on transition. Nepal is a country in South Asia where the fertility has declined and son is valued highly. This study examines the parent’s gender preference for children and its effect on fertility and reproductive behaviors. METHODS: Study was conducted in Sonapur village development committee of Sunsari district among women of Tharu community of reproductive age (15–49) currently in union and having at least one child. Data was collected by house to house survey. Data was analyzed with IBM SPSS 20 version. Multinomial and binary logistic regression were used to analyze the relationship among variables. RESULTS: Three hundred women of reproductive age were included in the study. Current average age of the respondents was 31.97 years and mean age at marriage was 18.87 (SD +/-2.615). Child Sex ratio (male: female) of the respondents who didn’t want any more children was 1.41. The birth spacing following male baby was 3.09 years whereas the average birth spacing following female baby was 2.71 years. Age of the respondents and education status of the respondents were also significantly associated with contraceptive practice. Presence of only female children in family significantly increased the desire of other children (AOR = 10.153, 95% CI = 2.357-43.732). CONCLUSION: This study finds that the gender preference affects the fertility and reproductive behavior of the respondents and it is necessary to reduce son preference for the health and well being of children and women

Exploring the limits to sustainable pellet production for international markets: The impact of increasing pellet production in the US Southeast on feedstock use, production cost and carbon sequestration in forest areas

With rising demand for wood pellets from the US Southeast (US SE), the environmental limits to additional biomass demand are increasingly questioned. This study analyses the impact of increased pellet production in the US SE until 2030 on feedstock allocation, carbon flux in forest areas and costs of pre-treatment and transport of feedstock and pellets. This by linking locations of forest biomass supply and demand through supply-side logistics, allocating feedstock based on lowest costs of pre-treatment, transport of feedstock and pellets, for the entire wood products sector. The impact is analysed for different scenarios with varied pellet production levels, additional inclusion of logging residues and optimization either on costs or on maintaining total carbon stock in sourcing areas of new pellet mills. In a scenario of 20 Mt pellet production, the roundwood share increases from 0% in 2020 to 37% pulplogs and 11% sawlogs in 2030. Costs increase with 57% towards 2030 compared to 2020, largely because of higher costs for pulplogs and sawlogs. In a scenario without pellet production, forest carbon removal in the US SE is 3 Mt CO2/year lower than in 2020. In the Reference scenario, additional carbon removal of 6, 21 and 38 Mt CO2/year is observed for 10, 20 and 30 Mt pellet production, respectively. In all cases, the forests of the US SE remain a net sink until 2030. The impact of a selection criteria for new pellet mill locations based on keeping local growth/drain ratios above 1 in sourcing areas is small since this mostly results in displacement of impacts and does not affect the total feedstock availability. Additional mobilization of logging residues is a key strategy to reduce carbon impacts, resulting in a smaller additional flux of 2, 11 and 29 Mt CO2/year for 10–30 Mt pellet production

The COVID‐19 Pandemic Not Only Poses Challenges, but Also Opens Opportunities for Sustainable Transformation

The COVID-19 pandemic has impacted social, economic, and environmental systems worldwide, slowing down and reversing the progress made in achieving the Sustainable Development Goals (SDGs). SDGs belong to the 2030 Agenda to transform our world by tackling humankind's challenges to ensure well-being, economic prosperity, and environmental protection. We explore the potential impacts of the pandemic on SDGs for Nepal. We followed a knowledge co-creation process with experts from various professional backgrounds, involving five steps: online survey, online workshop, assessment of expert's opinions, review and validation, and revision and synthesis. The pandemic has negatively impacted most SDGs in the short term. Particularly, the targets of SDG 1, 4, 5, 8, 9, 10, 11, and 13 have and will continue to have weakly to moderately restricting impacts. However, a few targets of SDG 2, 3, 6, and 11 could also have weakly promoting impacts. The negative impacts have resulted from impeding factors linked to the pandemic. Many of the negative impacts may subside in the medium and long terms. The key five impeding factors are lockdowns, underemployment and unemployment, closure of institutions and facilities, diluted focus and funds for non-COVID-19-related issues, and anticipated reduction in support from development partners. The pandemic has also opened a window of opportunity for sustainable transformation, which is short-lived and narrow. These opportunities are lessons learned for planning and action, socio-economic recovery plan, use of information and communication technologies and the digital economy, reverse migration and “brain gain,” and local governments' exercising authorities

Financial Analysis of Habitat Conservation Banking in California

Habitat conservation banking is a policy instrument for conserving endangered species by providing financial incentives for the landowners in the United States. This policy instrument aims to protect habitat, but little or no thought has been given to its financial performance. A financial analysis of habitat conservation banks (HCB) informs policymakers and conservation biologists of the long-term success of this policy and the future of HCBs. This paper evaluates 26 habitat conservation banks (HCB) in California by calculating their Net Present Values (NPV). We do so by compiling the cost and revenue data for habitat conservation banks. The average annual cost of operating HCBs was $42.78/acre (median:$22.58/acre), and the average credit price or revenue from credit sale was $6014.72/acre (median:$553.65/acre). The average NPV for 26 HCBs was $4205.90/acre at a 4% rate of return, indicating an overall positive return from such an easement instrument. However, only 14 HCBs out of 26 produced a positive return. With the inclusion of land acquisition costs, three of eight HCBs performed financially well. On the brighter side, the number of HCBs has increased with time. But there is not enough evidence to ascertain financial certainty from their revenues. A right selection of space (land acquisition costs can make or break finances for HCB) and species could encourage landowners to establish HCBs. This could build confidence on those who may have been discouraged from lack of knowledge and fear of losing revenue due to regulatory compliance to conserve endangered species habitat in their land. The findings are helpful in identifying lands and prioritizing investments to generate conservation credits