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Sustainability, Volume 4, Issue 11 (November 2012) – 20 articles , Pages 2785-3179

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3733 KiB  
Article
Perspectives on Sustainable Resource Conservation in Community Nature Reserves: A Case Study from Senegal
by Liliana Pacheco, Sara Fraixedas, Álvaro Fernández-Llamazares, Neus Estela, Robert Mominee and Ferran Guallar
Sustainability 2012, 4(11), 3158-3179; https://doi.org/10.3390/su4113158 - 16 Nov 2012
Cited by 9 | Viewed by 9450
Abstract
The coalescing of development and conservation has recently given rise to community-based conservation. Under this framework, sustainable livelihood strategies are incorporated into conservation goals on the basis that the integration of local priorities into management guidelines benefits rather than impedes conservation efforts. Consistent [...] Read more.
The coalescing of development and conservation has recently given rise to community-based conservation. Under this framework, sustainable livelihood strategies are incorporated into conservation goals on the basis that the integration of local priorities into management guidelines benefits rather than impedes conservation efforts. Consistent with this approach, the Community Nature Reserve of Dindéfélo in Kédougou, Senegal endeavors to protect biodiversity without jeopardizing local people’s reliance on natural resources. In this article we provide evidence that sustainable resource conservation is a very powerful mechanism in redirecting labor and capital away from ecosystem-degrading activities. To do this, we present three examples of projects, aiming to illustrate different ways in which local people’s management and sustainable use of natural resources can be beneficial in terms of biodiversity conservation, socioeconomic development, and human well-being. Full article
(This article belongs to the Special Issue Sustainable Development in Natural Protected Areas)
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176 KiB  
Opinion
The Potential of the South American Leaf Blight as a Biological Agent
by Oghenekome Onokpise and Clifford Louime
Sustainability 2012, 4(11), 3151-3157; https://doi.org/10.3390/su4113151 - 15 Nov 2012
Cited by 5 | Viewed by 7603
Abstract
When asked by the Department of Homeland Security to create potential terrorism scenarios, even “Out of the Box Thinkers” initially failed to come up with the following scenario. Oil tankers, refineries, nuclear plants, etc., are obvious potential terrorists’ targets, and adequate measures [...] Read more.
When asked by the Department of Homeland Security to create potential terrorism scenarios, even “Out of the Box Thinkers” initially failed to come up with the following scenario. Oil tankers, refineries, nuclear plants, etc., are obvious potential terrorists’ targets, and adequate measures are being taken to protect them. However, what if the target were to be a non-food commodity product, such as natural rubber tree plantations located in places as remote as southeast Asian countries like Thailand or Indonesia? Would it be of concern? At first thought “maybe not”, but think again. What could the release of a deadly microorganism (fungus/virus/bacteria) in a rubber tree plantation in Indonesia, Malaysia or Thailand possibly mean to you or the world economy? Full article
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162 KiB  
Article
The Tragedy of the “Tragedy of the Commons”: Why Coining Too Good a Phrase Can Be Dangerous
by Robert Stephen Hawkshaw, Sarah Hawkshaw and U. Rashid Sumaila
Sustainability 2012, 4(11), 3141-3150; https://doi.org/10.3390/su4113141 - 15 Nov 2012
Cited by 6 | Viewed by 8489
Abstract
A deep reading of Hardin (1968) reveals that he had a lot more to say about the use and regulation of resources such as fisheries than he is given credit for in the literature. It appears that he is typically cited just so [...] Read more.
A deep reading of Hardin (1968) reveals that he had a lot more to say about the use and regulation of resources such as fisheries than he is given credit for in the literature. It appears that he is typically cited just so that authors can use the phrase “tragedy of the commons” to invoke the specter of looming catastrophe and then tie that to whatever solution they have proposed. We argue in this contribution that there is a lot more in Hardin’s essay that either contradicts or greatly complicates the arguments he is cited as an authority for. Full article
(This article belongs to the Special Issue Tragedy or Transcendence: Reflections on 'The Tragedy of the Commons')
1937 KiB  
Review
An Overview of Disease-Free Buffalo Breeding Projects with Reference to the Different Systems Used in South Africa
by Liesel Laubscher and Louwrens Hoffman
Sustainability 2012, 4(11), 3124-3140; https://doi.org/10.3390/su4113124 - 15 Nov 2012
Cited by 14 | Viewed by 10105
Abstract
This paper describes the successful national program initiated by the South African government to produce disease-free African buffalo so as to ensure the sustainability of this species due to threats from diseases. Buffalo are known carriers of foot-and-mouth disease, bovine tuberculosis, Corridor disease [...] Read more.
This paper describes the successful national program initiated by the South African government to produce disease-free African buffalo so as to ensure the sustainability of this species due to threats from diseases. Buffalo are known carriers of foot-and-mouth disease, bovine tuberculosis, Corridor disease and brucellosis. A long-term program involving multiphase testing and a breeding scheme for buffalo is described where, after 10 years, a sustainable number of buffalo herds are now available that are free of these four diseases. A large portion of the success was attributable to the use of dairy cows as foster parents with the five-stage quarantine process proving highly effective in maintaining the “disease-free” status of both the calves and the foster cows. The projects proved the successfulness of breeding with African buffalo in a commercial system that was unique to African buffalo and maintained the “wildness” of the animals so that they could effectively be released back into the wild with minimal, if any, behavioral problems. Full article
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1272 KiB  
Article
Sustainable, Full-Scope Nuclear Fission Energy at Planetary Scale
by Robert Petroski and Lowell Wood
Sustainability 2012, 4(11), 3088-3123; https://doi.org/10.3390/su4113088 - 13 Nov 2012
Cited by 5 | Viewed by 11361
Abstract
A nuclear fission-based energy system is described that is capable of supplying the energy needs of all of human civilization for a full range of human energy use scenarios, including both very high rates of energy use and strikingly-large amounts of total energy-utilized. [...] Read more.
A nuclear fission-based energy system is described that is capable of supplying the energy needs of all of human civilization for a full range of human energy use scenarios, including both very high rates of energy use and strikingly-large amounts of total energy-utilized. To achieve such “planetary scale sustainability”, this nuclear energy system integrates three nascent technologies: uranium extraction from seawater, manifestly safe breeder reactors, and deep borehole disposal of nuclear waste. In addition to these technological components, it also possesses the sociopolitical quality of manifest safety, which involves engineering to a very high degree of safety in a straightforward manner, while concurrently making the safety characteristics of the resulting nuclear systems continually manifest to society as a whole. Near-term aspects of this nuclear system are outlined, and representative parameters given for a system of global scale capable of supplying energy to a planetary population of 10 billion people at a per capita level enjoyed by contemporary Americans, i.e., of a type which might be seen a half-century hence. In addition to being sustainable from a resource standpoint, the described nuclear system is also sustainable with respect to environmental and human health impacts, including those resulting from severe accidents. Full article
(This article belongs to the Special Issue Sustainable Nuclear Energy)
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1854 KiB  
Article
Talking Big: Lessons Learned from a 9000 Hectare Restoration in the Northern Tallgrass Prairie
by Philip J. Gerla, Meredith W. Cornett, Jason D. Ekstein and Marissa A. Ahlering
Sustainability 2012, 4(11), 3066-3087; https://doi.org/10.3390/su4113066 - 13 Nov 2012
Cited by 46 | Viewed by 11918
Abstract
Large tracts (>1000 ha) of prairie are essential to the sustainability of grassland ecosystem services, yet in many ecoregions only small fragments remain. Glacial Ridge is among the largest prairie-wetland restorations ever attempted. Started in 2000, the 9000 ha project in northwest Minnesota, [...] Read more.
Large tracts (>1000 ha) of prairie are essential to the sustainability of grassland ecosystem services, yet in many ecoregions only small fragments remain. Glacial Ridge is among the largest prairie-wetland restorations ever attempted. Started in 2000, the 9000 ha project in northwest Minnesota, USA, was initiated to reconnect 14 small tallgrass prairie remnants. In all, 15,200 ha of contiguous habitat comprise the project's direct accomplishment. We created a partnership of more than 30 organizations, filled 177 km of drainage ditch, restored 1240 ha of wetland, and replanted 8100 ha. Flooding has been mitigated, water quality improved, and native vegetation reestablished. Animals not documented for decades have again occupied the site. Despite these accomplishments, the project would have been unnecessary if the land had been purchased in the 1970s, prior to conversion to agriculture, at one-tenth the restoration cost. Our challenges related to funding, differences in partners' restoration philosophy, community concerns about floods and tax losses, difficulties in obtaining seed, and follow-up management of invasive weeds. We summarize the restoration process and share basic principles that will help others to develop large-scale prairie restoration projects in the future. Full article
(This article belongs to the Special Issue Terrestrial Ecosystem Restoration)
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984 KiB  
Article
Evaluating Sustainability and Democracy in the Development of Industrial Port Cities: Some Italian Cases
by Raffaele Attardi, Alessandro Bonifazi and Carmelo M. Torre
Sustainability 2012, 4(11), 3042-3065; https://doi.org/10.3390/su4113042 - 12 Nov 2012
Cited by 22 | Viewed by 7639
Abstract
Strategic Environmental Assessment (SEA) is a major policy evaluation tool, for institutional processes, when they need to cope with fundamental risks, give voice to non-human agents, manage commons, and address environmental justice. The interplay of SEA with planning, unravels key issues and criticalities [...] Read more.
Strategic Environmental Assessment (SEA) is a major policy evaluation tool, for institutional processes, when they need to cope with fundamental risks, give voice to non-human agents, manage commons, and address environmental justice. The interplay of SEA with planning, unravels key issues and criticalities in both urban governance and environmental democracy. How can evaluation be developed to support the process? Structured evaluation methods applied in environmental assessment are maybe not sufficient to solve complex social conflicts. We point out some key reflections with the aim of opening up the discussion, by taking the case study of the environmental assessment of pollutant activities in the main industrial port cities of Southern Italy. They represent, at the moment, the most significant social criticality in our country, related to the interplay between environmental assessment and risk for labor. The paper focuses on the case study by mentioning the evolution of some thoughts about the red stripe that links sustainability, environmental democracy, and social evaluation, and illustrates the issues of these aspects in the case study, with the aim of underlining the difficulty of environmental assessment tools as a major support for planning processes, when social conflicts arise. Full article
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217 KiB  
Commentary
The Economic and Social Benefits and the Barriers of Providing People with Disabilities Accessible Clean Water and Sanitation
by Jacqueline Noga and Gregor Wolbring
Sustainability 2012, 4(11), 3023-3041; https://doi.org/10.3390/su4113023 - 12 Nov 2012
Cited by 12 | Viewed by 11785
Abstract
Resolution A/HRC/RES/16/2 adopted by the UN Human Rights Council on 8 April 2011 declared access to safe drinking water and sanitation a human right. However many people around the globe including people with disabilities do not have access to safe drinking water, hygiene [...] Read more.
Resolution A/HRC/RES/16/2 adopted by the UN Human Rights Council on 8 April 2011 declared access to safe drinking water and sanitation a human right. However many people around the globe including people with disabilities do not have access to safe drinking water, hygiene or sanitation facilities. Inaccessibility of clean water sources, hygiene and sanitation facilities negatively impacts among others health, education, the ability to work, and the ability to partake in social activities. This paper looks at the benefits of, and access barriers to, clean water and sanitation for people with disabilities. Full article
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2326 KiB  
Article
Modeling Sustainability of Water, Environment, Livelihood, and Culture in Traditional Irrigation Communities and Their Linked Watersheds
by Alexander Fernald, Vincent Tidwell, José Rivera, Sylvia Rodríguez, Steven Guldan, Caitriana Steele, Carlos Ochoa, Brian Hurd, Marquita Ortiz, Kenneth Boykin and Andres Cibils
Sustainability 2012, 4(11), 2998-3022; https://doi.org/10.3390/su4112998 - 09 Nov 2012
Cited by 59 | Viewed by 16567
Abstract
Water scarcity, land use conversion and cultural and ecosystem changes threaten the way of life for traditional irrigation communities of the semi-arid southwestern United States. Traditions are strong, yet potential upheaval is great in these communities that rely on acequia irrigation systems. Acequias [...] Read more.
Water scarcity, land use conversion and cultural and ecosystem changes threaten the way of life for traditional irrigation communities of the semi-arid southwestern United States. Traditions are strong, yet potential upheaval is great in these communities that rely on acequia irrigation systems. Acequias are ancient ditch systems brought from the Iberian Peninsula to the New World over 400 years ago; they are simultaneously gravity flow water delivery systems and shared water governance institutions. Acequias have survived periods of drought and external shocks from changing economics, demographics, and resource uses. Now, climate change and urbanization threaten water availability, ecosystem functions, and the acequia communities themselves. Do past adaptive practices hold the key to future sustainability, or are new strategies required? To explore this issue we translated disciplinary understanding into a uniform format of causal loop diagrams to conceptualize the subsystems of the entire acequia-based human-natural system. Four subsystems are identified in this study: hydrology, ecosystem, land use/economics, and sociocultural. Important linkages between subsystems were revealed as well as variables indicating community cohesion (e.g., total irrigated land, intensity of upland grazing, mutualism). Ongoing work will test the conceptualizations with field data and modeling exercises to capture tipping points for non-sustainability and thresholds for sustainable water use and community longevity. Full article
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333 KiB  
Article
Monocropping Cultures into Ruin: The Loss of Food Varieties and Cultural Diversity
by Peter J. Jacques and Jessica Racine Jacques
Sustainability 2012, 4(11), 2970-2997; https://doi.org/10.3390/su4112970 - 07 Nov 2012
Cited by 55 | Viewed by 23396
Abstract
The loss of genetic diversity of thousands of plants and crops has been well documented at least since the 1970s, and has been understood as a result of epistemological and political economic conditions of the Green Revolution. The political economic arrangement of the [...] Read more.
The loss of genetic diversity of thousands of plants and crops has been well documented at least since the 1970s, and has been understood as a result of epistemological and political economic conditions of the Green Revolution. The political economic arrangement of the Green Revolution, alongside a post-war focus on economies of scale and export-oriented growth, replace high-yield single varieties of crops for a diverse array of varieties that may not have the same yield, but may be able to resist pests, disease, and changing climatic conditions. Also, the harvest does not flow in all directions equally: Whereas small holder subsistence farming uses a large variety of crops as a food source and small-scale trade, the industrial economic system requires simplified, machine harvested ship-loads of one variety of maize, for example. Diverse varieties of different crops confound the machines, whereas one variety of wheat can be harvested with one setting on a machine. However, none of this is new. The purpose of this article is to analyze how the twin concerns of lost varietals and lost cultures are bound together in the socio-political process of standardization, and to explain some areas of resistance. Full article
(This article belongs to the Special Issue Endangered Human Diversity: Languages, Cultures, Epistemologies)
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817 KiB  
Article
Understanding Global Supply Chains and Seafood Markets for the Rebuilding Prospects of Northern Gulf Cod Fisheries
by Ahmed S. Khan
Sustainability 2012, 4(11), 2946-2969; https://doi.org/10.3390/su4112946 - 06 Nov 2012
Cited by 8 | Viewed by 10098
Abstract
Although fisheries production and seafood trade are global in scope, with billions of dollars in exports, the rebuilding of collapsed fisheries often focus on national fisheries policy and management measures, with little attention to global supply chains and international consumer markets. Even with [...] Read more.
Although fisheries production and seafood trade are global in scope, with billions of dollars in exports, the rebuilding of collapsed fisheries often focus on national fisheries policy and management measures, with little attention to global supply chains and international consumer markets. Even with two moratoria and two decades of policy changes since the Northern Gulf cod fisheries collapsed in eastern Canada, rebuilding has stalled and the fishing industry and coastal communities continue to undergo challenges with economic viability and resource sustainability. This paper examines and analyzes the global supply chain and marketing dimension of Northern Gulf cod fisheries. Drawing upon fisheries bioeconomics and governance theory, a pre- and post-collapse analysis is undertaken to understand key drivers and institutional mechanisms along global fish supply chains for an effective and successful rebuilding. Findings indicate that the collapse of the cod fishery has cascading effects that go beyond ecosystem changes to new harvesting activities, industry restructuring, supply chain reorganization, new global markets and consumer preference for certified seafood. This suggests that a holistic rebuilding approach is necessary, one that integrates institutional and behavioral changes for both producers and consumers at various scales of fisheries production, political economy issues, as well as cross-scale policies on marine conservation and regional economic development. Full article
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302 KiB  
Article
Governance, Sustainability and Decision Making in Water and Sanitation Management Systems
by Martín Alejandro Iribarnegaray and Lucas Seghezzo
Sustainability 2012, 4(11), 2922-2945; https://doi.org/10.3390/su4112922 - 05 Nov 2012
Cited by 29 | Viewed by 12036
Abstract
We explore the connections between the concepts of governance and sustainability and discuss their possible roles in water and sanitation management systems (WSMS). We see governance as a decision-making process that drives the relationship between social institutions and the public affairs of a [...] Read more.
We explore the connections between the concepts of governance and sustainability and discuss their possible roles in water and sanitation management systems (WSMS). We see governance as a decision-making process that drives the relationship between social institutions and the public affairs of a given society. We understand sustainability as a combination of spatial, temporal, and personal aspects, and we argue that this definition is more comprehensive than the traditional triple bottom line of economy, environment, and society. We combined these two concepts into a new conceptual framework of “governance for sustainability” that is theoretically sound and arguably appropriate to understand local WSMS. To illustrate this framework, we developed and estimated a Sustainable Water Governance Index (SWGI) for the city of Salta, Argentina. This aggregated index was calculated with data from literature, information from the city’s water company and other local institutions, field visits, and interviews. The SWGI for Salta obtained an overall score of 49 on a 0–100 scale, which fell into the “danger” range. We discuss the advantages and limitations of the method and conclude that aggregated indices such as the SWGI, complemented with contextual information, can be a helpful decision-making tool to promote more sustainable WSMS. Full article
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1140 KiB  
Article
Strategic Environmental Assessment of Port Plans in Italy: Experiences, Approaches, Tools
by Maria Cerreta and Pasquale De Toro
Sustainability 2012, 4(11), 2888-2921; https://doi.org/10.3390/su4112888 - 01 Nov 2012
Cited by 18 | Viewed by 7853
Abstract
Evaluation is increasingly important in decision-making processes for the sustainable planning and design of port plans. It acts as a support for plan preparation, for making values, interests and needs explicit, and for exploring the components of the decision-making process itself. Evaluation can [...] Read more.
Evaluation is increasingly important in decision-making processes for the sustainable planning and design of port plans. It acts as a support for plan preparation, for making values, interests and needs explicit, and for exploring the components of the decision-making process itself. Evaluation can be likened to an “implicit tool” that can integrate approaches, methodologies and models, adapting to the many needs revealed during the decision-making process. New sustainability challenges call for new approaches to creating frameworks for the analysis and evaluation of plans and projects that allow the integration of multidimensional goals and values. Utilizing some selected case studies of port plans in six Italian cities, this paper explores how environmental assessment can become a tool for dialog and interaction among different fields of expertise to support dynamic learning processes, knowledge management and the creation of shared choices, using suitable approaches and tools. In this view, Integrated Spatial Assessment (ISA) can be useful in supporting decision-making processes on different scales and institutional levels to stimulate dialog between technical and political evaluations, referring to complex values that are part of conflicting and changing realities in which it has become imperative to operate according to sustainability principles. Full article
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406 KiB  
Article
Leveraging Fuel Subsidy Reform for Transition in Yemen
by Clemens Breisinger, Wilfried Engelke and Olivier Ecker
Sustainability 2012, 4(11), 2862-2887; https://doi.org/10.3390/su4112862 - 30 Oct 2012
Cited by 13 | Viewed by 6839
Abstract
Yemen is currently undergoing a major political transition, yet many economic challenges—including fuel subsidy reform—remain highly relevant. To inform the transition process with respect to a potential subsidy reform, we use a dynamic computable general equilibrium and microsimulation model for Yemen; we show [...] Read more.
Yemen is currently undergoing a major political transition, yet many economic challenges—including fuel subsidy reform—remain highly relevant. To inform the transition process with respect to a potential subsidy reform, we use a dynamic computable general equilibrium and microsimulation model for Yemen; we show that overall growth effects of subsidy reduction are positive in general, but poverty can increase or decrease depending on reform design. A promising strategy for a successful reform combines fuel subsidy reduction with direct income transfers to the poorest one-third of households during reform, and productivity-enhancing investment in infrastructure, plus fiscal consolidation. Public investments should be used for integrating economic spaces and restructuring of agricultural, industrial and service value chains in order to create a framework that encourages private-sector-led and job-creating growth. Full article
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188 KiB  
Case Report
Effect of Improving Environmental Sustainability in Developing Countries by Upgrading Solid Waste Management Techniques: A Case Study
by Mentore Vaccari, Vincenzo Torretta and Carlo Collivignarelli
Sustainability 2012, 4(11), 2852-2861; https://doi.org/10.3390/su4112852 - 26 Oct 2012
Cited by 44 | Viewed by 8772
Abstract
The present research has focused on a contribution to the improvement of solid waste management in a waste collectors’ cooperative located in Brazil (Marcos Moura district, Santa Rita, Paraiba State) through a technical and organizational up-grading. Collection, processing and final disposal of wastes [...] Read more.
The present research has focused on a contribution to the improvement of solid waste management in a waste collectors’ cooperative located in Brazil (Marcos Moura district, Santa Rita, Paraiba State) through a technical and organizational up-grading. Collection, processing and final disposal of wastes still represent a problem in some regions of Brazil. The proposed strategy foresaw the analysis of the local situation, the evaluation of the cooperative efficiency rate and then the introduction of technical and operational improvements to the service. Besides the technical activity, a social inclusion program was developed in order to include local scavengers (called Catadores) and to improve the social and economic conditions of populations involved in the process. The project also increased their environmental awareness. The workgroup is still monitoring the obtained results in order to check for the achievement of foreseen targets, to plan further improvements and to replicate this experience in other Brazilian areas. Full article
(This article belongs to the Special Issue Sustainable Waste Management)
278 KiB  
Article
Environmental Profiles of Stirling-Cooled and Cascade-Cooled Ultra-Low Temperature Freezers
by David M. Berchowitz and Yongrak Kwon
Sustainability 2012, 4(11), 2838-2851; https://doi.org/10.3390/su4112838 - 25 Oct 2012
Cited by 14 | Viewed by 12026
Abstract
The environmental footprint of ultra-low temperature (ULT) freezers as used in bio-repositories, universities and other research organizations is investigated. These freezers, employing the cascade refrigeration system, use between 10 and 20 times the energy of an average household refrigerator/freezer. In addition, they often [...] Read more.
The environmental footprint of ultra-low temperature (ULT) freezers as used in bio-repositories, universities and other research organizations is investigated. These freezers, employing the cascade refrigeration system, use between 10 and 20 times the energy of an average household refrigerator/freezer. In addition, they often require high greenhouse gas potential (GWP) refrigerants. A new technology employing the Stirling cycle machine promises to reduce energy consumption of ULT freezers by 50% or more. The cascade and Stirling systems are compared for equivalent sized freezers in terms of embodied energy and equivalent CO2 production from cradle to gate and use, including total equivalent warming impact (TEWI) estimations. End-of-life issues are discussed but not quantified. It is shown that Stirling technology is able to significantly reduce the environmental impact of ULT freezers. Full article
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329 KiB  
Article
Economic Growth, Capitalism and Unknown Economic Paradoxes
by Stasys Girdzijauskas, Dalia Streimikiene and Andzela Mialik
Sustainability 2012, 4(11), 2818-2837; https://doi.org/10.3390/su4112818 - 24 Oct 2012
Cited by 7 | Viewed by 7124
Abstract
The paper deals with failures of capitalism or free market and presents the results of economic analysis by applying a logistic capital growth model. The application of a logistic growth model for analysis of economic bubbles reveals the fundamental causes of bubble formation—economic [...] Read more.
The paper deals with failures of capitalism or free market and presents the results of economic analysis by applying a logistic capital growth model. The application of a logistic growth model for analysis of economic bubbles reveals the fundamental causes of bubble formation—economic paradoxes related with phenomena of saturated markets: the paradox of growing returnability and the paradoxes of debt and leverage trap. These paradoxes occur exclusively in the saturated markets and cause the majority of economic problems of recent days including overproduction, economic bubbles and cyclic economic development. Unfortunately, these paradoxes have not been taken into account when dealing with the current failures of capitalism. The aim of the paper is to apply logistic capital growth models for the analysis of economic paradoxes having direct impact on the capitalism failures such as economic bubbles, economic crisis and unstable economic growth. The analysis of economic paradoxes and their implication son failures of capitalism provided in the paper presents the new approach in developing policies aimed at increasing economic growth stability and overcoming failures of capitalism. Full article
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1288 KiB  
Article
A Preliminary Environmental Assessment for the Preservation and Restoration of Fujian Hakka Tulou Complexes
by Minoru Ueda
Sustainability 2012, 4(11), 2803-2817; https://doi.org/10.3390/su4112803 - 24 Oct 2012
Cited by 14 | Viewed by 9611
Abstract
In 2007 and 2009, research trips were taken, mainly in the Fujian province of China, to investigate the construction materials, methods, structures and floor plans of Hakka Tulou. Researchers lived in several Tulou, interviewed residents and experienced traditional Hakka lifestyle. Typically, Tulou are [...] Read more.
In 2007 and 2009, research trips were taken, mainly in the Fujian province of China, to investigate the construction materials, methods, structures and floor plans of Hakka Tulou. Researchers lived in several Tulou, interviewed residents and experienced traditional Hakka lifestyle. Typically, Tulou are located in remote regions at relatively high elevations in climatic conditions characterized by hot summers, cold winters, and with high incidents of typhoons and earthquakes. The extent of damage and level of preservation were examined with respect to the age of many of these structures, the relatively harsh environment, and changing demographics in the region. The majority of occupants are now elderly. They maintain a traditional and efficient lifestyle utilizing minimum electricity, water, and energy. This study discusses the findings from these two field trips and assesses environmental load and sustainability within the context of current environmental standards using the Japanese Comprehensive Assessment System for Building Environmental Efficiency (CASBEE) from data collected at Cheng Qi Lou. The goal was: firstly to undertake a preliminary environmental assessment to determine sustainable elements of Hakka Tulou construction methods; secondly, to identify potential sustainable solutions to preserve existing structure; and finally, to identify appropriate sustainable solutions to repair and retrofit damaged and underutilized structures to modern living standards, while retaining traditional building techniques and lifestyle. Full article
(This article belongs to the Special Issue Hakka Tulou and Sustainability: The Greenest Buildings in the World)
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900 KiB  
Article
Heaven and Earth—Sustaining Elements in Hakka Tulou
by Keith D. Lowe
Sustainability 2012, 4(11), 2795-2802; https://doi.org/10.3390/su4112795 - 24 Oct 2012
Cited by 20 | Viewed by 11346
Abstract
Hakka culture reveals how the ancient Chinese lived. Hakka architecture yields much evidence that modern Hakka culture of the south flows from the ancient stream of the north. The genius of the Hakka is best seen in the unique roundhouses of the mountainous [...] Read more.
Hakka culture reveals how the ancient Chinese lived. Hakka architecture yields much evidence that modern Hakka culture of the south flows from the ancient stream of the north. The genius of the Hakka is best seen in the unique roundhouses of the mountainous borderland of three provinces—Guangdong, Fujian and Jiangxi. However, in completing the fourth of five migrations, the Hakka returned to the traditional building styles of the northern plains of China and built Wufenglou on the plains of southern Guangdong province. The structures not only facilitate environmental sustainability, but endow the inhabitants with material, social and spiritual sustainability. Full article
(This article belongs to the Special Issue Hakka Tulou and Sustainability: The Greenest Buildings in the World)
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342 KiB  
Article
Profitability of Small-Scale Fisheries in Elmina, Ghana
by Denis W. Aheto, Noble K. Asare, Belinda Quaynor, Emmanuel Y. Tenkorang, Cephas Asare and Isaac Okyere
Sustainability 2012, 4(11), 2785-2794; https://doi.org/10.3390/su4112785 - 24 Oct 2012
Cited by 27 | Viewed by 8641
Abstract
In order to achieve sustainable fishing livelihoods in coastal communities, data on profitability of small-scale fisheries relative to fish species caught and gear types used by fishermen is required as part of a broader fisheries management strategy. This study was undertaken with this [...] Read more.
In order to achieve sustainable fishing livelihoods in coastal communities, data on profitability of small-scale fisheries relative to fish species caught and gear types used by fishermen is required as part of a broader fisheries management strategy. This study was undertaken with this in mind. Interviews were conducted among 60 fishermen between February and March 2010. Economic assessment of small-scale fishing activities were done using questionnaires based on direct market pricing and contingent valuation methods. The results indicate that highly profitable fish species include Epinephelus aeneus, Sparus caeruleostictus, Dentex angolensis and Lutjanus goreensis valued at US$2.97, US$2.87, US$2.85 and US$2.63 per kilogram respectively. The less profitable species include Dasyatis margarita, Caranx crysos and Sardinella aurita valued at US$0.34, US$0.66 and US$ 0.85 per kilogram respectively. Although Sardinella aurita was among the less valuable fish species, it was the main species driving profits for the fishermen due to its high share volume among the fish catches. Findings from this study suggest high rates of exploitation, in that stocks generally cannot provide for increased economic return in the face of increased investment. This is a clear indicator that the open-access nature of Ghanaian fisheries is not sustainable, and management reform is well overdue. Full article
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