scholarly journals BIOENERGY BASED ON WOOD CHIPS AS THE DEVELOPMENT DRIVER OF NON-URBAN FORESTED AREAS

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Natalia VUKOVIC ◽  
Sergey ZALESOV ◽  
Darko VUKOVIC

One of the most important key factors for the development of non-urban areas is infrastructure, and energy generation is one of the fundamental infrastructure elements. This paper provides a new solution for energy generation based on wood chips which has a multi-sector effect because the offer to combine planning of forest cleaning cutting with bioenergy generation in one complex project, which will have socio-economic and ecological effects. The situation with forest fires makes the authors' idea more attractive because after forest fires the problem of cleaning cutting in forest becomes very important and urgent by ecological and economical points: after cleaning cutting there are a lot of low quality wood which can be recycled into chips for the production bioenergy by the authors' idea. This enriched methodology has successfully been applied into the regional strategical planning in the field of bioenergy and forestry of the Ural region of Russia; however, it is suitable for applications in regional development in any non-urban forested region of the world.

2011 ◽  
Vol 11 (12) ◽  
pp. 3343-3358 ◽  
Author(s):  
M. G. Pereira ◽  
B. D. Malamud ◽  
R. M. Trigo ◽  
P. I. Alves

Abstract. We focus here on a mainland Continental Portuguese Rural Fire Database (PRFD) that includes 450 000 fires, the largest such database in Europe in terms of total number of recorded fires in the 1980–2005 period. In this work, we (a) list the most important factors for triggering and controlling the fire regime in mainland Continental Portugal, (b) describe the dataset's production, (c) discuss procedures adopted to identify and correct different fire data inconsistencies, creating a modified PRFD which we use here and make available as Supplement, (d) explore some basic temporal and completeness properties of the data. We find that the dataset's minimum measured burnt areas have changed with time between AF = 0.1 ha (1980–1990), AF = 0.01 ha (1991–1992), and AF = 0.001 ha (1992–2005), with varying degrees of completeness down to these values. These changes in minimum area measured are responsible for greater numbers of fires being recorded. A relatively small number of large fires in the PRFD are responsible for the majority of the burnt area. For example, fires with AF > 100 ha represent about 1% of all fire records but 75% of total burnt area. Finally, we consider for each Continental Portugal district and for the 26-yr period, the total number of rural fires and area burnt in forests and shrublands, each normalized by district areas. We find that the highest numbers of fires per unit area are in highly populated districts, and that the largest fraction of burnt area is in forested areas, coinciding with large parcels of continuous forests (predominantly rural and moderately urban areas).


2020 ◽  
Vol 223 ◽  
pp. 117255 ◽  
Author(s):  
Satoru Chatani ◽  
Kazuyo Yamaji ◽  
Syuichi Itahashi ◽  
Masahiko Saito ◽  
Masayuki Takigawa ◽  
...  

Out of all renewable energy generation fields like solar, small hydro, wind and biomass energy sectors-biomass energy generation sector is not in a well organized condition almost in all the states of India. In this paper we tried to examine the revenue expenditure components to find its impact on the viability of selected firms. For this purpose we have used the statistical tools like mean, standard deviation and co-efficient of variation. The results have shown that the co-efficient of variation of Satyamaharshi Power Corporation Limited is higher than other two firms and from the analysis of individual components of revenue expenditure of three firms, it is notable that administration expenses has highest co-efficient of variation in Rithwik Power Projects Limited and financial & miscellaneous expenses has highest co-efficient of variation in rest of the two firms.


PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254517
Author(s):  
Ving Fai Chan ◽  
Ai Chee Yong ◽  
Ciaran O’Neill ◽  
Christine Graham ◽  
Nathan Congdon ◽  
...  

Background This study aims to understand the key factors influencing guardians’ decisions when purchasing spectacles for their children in semi-urban and urban areas of Cross River State, Nigeria, where a spectacle cross-subsidisation scheme will be implemented. Methods This cross-sectional study was conducted among all consecutive guardians visiting the Calabar (urban), Ugep, Ikom and Ogoja (semi-urban) public eye clinics in Cross River State, southern Nigeria, from August 1 to October 31 2019, and whose children had significant refractive errors (myopia ≤-0.50D, hyperopia ≥1.50D, astigmatism >0.75D) and received spectacles. Guardians were interviewed using a questionnaire which included i) close-ended questions on reasons guardians choose to purchase spectacles for their children in eye clinics, ii) guardians’ perceptions of the quality and design of children’s current spectacle, iii) factors most heavily influencing their choice of spectacles for children, and iv) open-ended questions to seek guardians’ suggestions on how to improve the current spectacle range. Results All 137 eligible guardians (67.2% women [n = 92]) who visited the selected eye clinics participated in the study (response rate = 100%), with 109 (79.6%) from semi-urban and 28 (20.4%) attending urban clinics. Guardians from both urban and semi-urban clinics prioritised frame design, quality, and material as the main factors affecting their decision when purchasing spectacles for their children. Female guardians and those with higher incomes were both 1.5 times more likely to emphasise frame quality when describing selection criteria for purchasing spectacles for their children than male guardians (p = 0.01) or guardians earning less (p = 0.03). Conclusion Design, material, and frame quality are key factors influencing guardians when purchasing spectacles for their children in these setting and female guardians or those with higher income prioritise frame quality. This study could guide the planning and implementation of a novel cross-subsidisation scheme in Cross River State.


2021 ◽  
Author(s):  
Branislav Tosic

<p><b>Since the early stages of stadium design, landscape architecture has frequently been overlooked, with the space surrounding these structures relegated to providing parking and accessways. In other words, rather than give consideration to creating aesthetically appealing spaces, the tendency has instead been to create sterile and unappealing concrete jungles, that pay little or no attention to how the users might experience the space as they move through it. This effectively means that potentially attractive public spaces are not being utilised, which is increasingly problematic as urban areas become ever more densely populated. </b></p><p>This issue will be considered by proposing a series of ideas that could be used in the development of a new stadium for the Brazilian football club Flamengo. This club, which is one of the biggest and most popular in South America, currently has its home at the </p><p>Maracana stadium in Rio de Janeiro. As a result of the privatisation of the previously publicly-owned stadium, Flamengo has decided that it would prefer to develop a new stadium on an entirely new site in Rio. </p><p>The fundamental aim of this research thesis is to demonstrate how landscape architecture can be used to inform the development of stadiums in such a way that the sites surroundings stadiums can become attractive and functional spaces in their own right, that will appeal to a diverse demographic. In other words, rather than being no more than a carpark and accessway, attractive only to those attending an event at the stadium, the surrounding site should be a place that people would wish to visit for itself. To achieve this, the design must take into account a number of key factors, including where the stadium is situated with respect to the surrounding urban landscape, as well as how the stadium relates to the people who will be the primary users. The intention is to create a space surrounding the stadium that is wholly integrated, both physically and socially, with both the adjacent community and the club’s supporters who will travel there to make use of the many resources on offer at the stadium. Issues that are particular to this site, such as how best to turn a previously industrial site into one that is attractive and ecologically viable are also addressed as part of this thesis. </p><p>This design-led research will show how landscape architecture can administer key elements to stadium design, through connection to the urban fabric and fan experience. Exploiting these elements with evidence through the use of adaptive, flexible and also fixed design strategies of sustainability, resilient and regenerative landscape solutions will be achieved between the existing urban setting and Flamengo’s new home.</p>


2020 ◽  
Vol 8 (5) ◽  
pp. 2876-2880

This paper explores the characteristics of biomass waste (wood chips and wheat husk) experimentally. Wood has been the primary and cheap fuel for cooking in many households of different countries because it is easily accessible whereas wheat husk is also produced parallely in huge amount but its handling and proper utilisation also needs to be considered and energy generation. This study aims at providing an alternative to wood chips and wheat husk converted to be biochar for more energy generation. This biomass waste remains unutilised and consumes a lot of effort on its disposal; causes environmental problems such as air pollution from partially combust suspended particles and unwanted addition of gases and heat to the atmosphere along with health hazard. This study takes an attempt to reduce the requirements of fossils fuels reserves using biochar. On the basis of Gross Calorific Value (GCV) and percentage of Carbon, biochar is compared with coal. The biochar derived from biomass were analysed by proximate analysis, ultimate analysis, Heating Value, pH, BET surface area, yield percentage, functional group analysis through FT-IR and microscopic analysis by FE-SEM. The outcomes indicate a quantitative change in the volatile matter, carbon percentage, BET surface area, pH and their functional groups with increase in pyrolysis temperature. The moisture content and yield percentage decrease with increase in temperature.


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