A model for assessing habitat fragmentation caused by new infrastructures in extensive territories – Evaluation of the impact of the Spanish strategic infrastructure and transport plan

The aim of the present work is to design a model for evaluating the impact of planned infrastructures on species survival at the territorial scale by calculating a connectivity index. The method developed involves determining the effective distance of displacement between patches of the same habitat, simplifying earlier models so that there is no dependence on specific variables for each species. A case study is presented in which the model was used to assess the impact of the forthcoming roads and railways included in the Spanish Strategic Infrastructure and Transport Plan (PEIT, in its Spanish initials).This study took into account the habitats of peninsular Spain, which occupies an area of some 500,000 km². In this territory, the areas deemed to provide natural habitats are defined by Directive 92/43/EEC. The impact of new infrastructures on connectivity was assessed by comparing two scenarios, with and without the plan, for the major new road and railway networks. The calculation of the connectivity index (CI) requires the use of a raster methodology based on the Arc/Info geographical information system (GIS). The actual calculation was performed using a program written in Arc/Info Macro Language (AML); this program is available in FragtULs (Mancebo Quintana, 2007), a set of tools for calculating indicators of fragmentation caused by transport infrastructure (http://topografia.montes.upm.es/fragtuls.html).The indicator of connectivity proposed allows the estimation of the connectivity between all the patches of a territory, with no artificial (non-ecologically based) boundaries imposed. The model proposed appears to be a useful tool for the analysis of fragmentation caused by plans for large territories.     

Critical reflections on the theory and practice of social sustainability in the built environment – a meta-analysis

This article presents a critical reflection on the theory and practice of social sustainability in the built environment, identifies areas of agreement and disagreement, explores theoretical and conceptual gaps and challenges, and suggests practical implications for future research and urban policy. It argues that despite revisionist approaches which challenge the tripartite structure of sustainable development, social dimension of sustainability remains an essential valid pillar. Utilising a qualitative meta-analysis methodology for undertaking critical analysis of previous research and publications on the topic, key themes of theory and practice of social sustainability are identified and critically examined. Accordingly, 10 key formative characteristics of social sustainability and their research and policy implications are introduced. The article concludes with institutional observations for policy-makers to achieve greater success in addressing largely underestimated dimensions of social sustainability in urban settings.     

Direct and indirect effects of weather experiences on life satisfaction – which role for climate change expectations?

This paper deals with the effect of (1) damage experience from extreme weather events and (2) expectations concerning future climate change on subjective well-being (SWB). We use data from a large representative survey carried out amongst German households. The effect of experienced weather events on the SWB of the heads of households is significant only in the case of heat waves; the same cannot be said for storms, heavy rain, and floods. Concerns about future climate change in households have a substantial negative impact on current SWB. In addition, we divide the impact of experience into direct and indirect effects of damage, deduced from the impact of experience on expectations regarding future climate change. Both direct and indirect effects of weather experiences are quantified. It becomes apparent that the indirect effect is significant, but small when compared to the direct effect.     

Influence of a 1,800 MHz electromagnetic field on the EEG energy

The present study investigated the influence of electromagnetic fields (EMF), similar to that emitted by mobile phones, on brain activity. Ten women and ten men, matched for age and educational level, performed a short memory task (Wechsler test), with simultaneous Electroencephalogram (EEG) recordings at 15 scalp electrodes, both without (baseline) and with exposure to an 1,800 MHz signal. The EEG energy was found concentrated at the four basic EEG bands [α (8–13 Hz), β (14–30 Hz), δ (0–4 Hz), and θ (5–7 Hz)]. The analysis revealed that in the presence of EMF, the energy of the β band was significantly greater for females than for males at the majority of the electrodes. Since beta oscillation is associated with the shift of attention during the perception, these findings may indicate that the particular EMF (1,800 MHz signal) exerts an influence on this brain activity, which appears to be gender-related.     

A study of forest values and management attitudes in the general public in Germany and Sweden: does context matter?

Based on the reasoning that contextual variations are important for understanding differences in forest cognitions, this study examined forest values and management attitudes in the general public in Germany (n = 1135) and Sweden (n = 1311) by means of a questionnaire. Results indicated that the public in both countries emphasised similar forest values, and the overall pattern was comparable for different types of forest, although certain differences based on forest type and country were evident. For example, the German public was more ecologically oriented, whereas the Swedish public was more production oriented in its forest values and management attitudes. Furthermore, ecological and various anthropocentric forest values were perceived to be quite compatible, with the Swedish respondents perceiving this to a greater extent than the German. The overall cognitive structure of forest values and management attitudes was similar in both countries, although differences were revealed, particularly regarding attitudes.     

Bioreactors for treatment of VOCs and odours – A review

Volatile organic compounds (VOCs) and odorous compounds discharged into the environment create ecological and health hazards. In the recent past, biological waste air treatment processes using bioreactors have gained popularity in control of VOCs and odour, since they offer a cost effective and environment friendly alternative to conventional air pollution control technologies. This review provides an overview of the various bioreactors that are used in VOC and odour abatement, along with details on their configuration and design, mechanism of operation, insights into the microbial biodegradation process and future R&D needs in this area.     

EU policy on the move – mobility and domestic translation of the European Union’s renewable energy policy

We discuss how the EU’s Renewable Energy Directive was designed to be mobile, and how it was moved to and implemented in Finland by translating it to enhance wood-based energy production through specific subsidies. We study policy-making as a mobile process, which approach has its original roots in political science and more recent basis in political geography. The article aims to develop conceptual understanding of how the mobility of a supranational policy is generated and how a policy is translated into complex and contentious geographical contexts. We aim to show that mobility of a directive is enabled by an empty governance space which is aimed to be ‘filled in’ in each spatial context, and that the filling in process makes each translation a contentious and path-dependent process. In Finland, the selected policy tools and practices continued the path-dependent ways of favouring forestry industry’s traditional position as the primary utiliser of forest resources.     

Quantifying the Effect of Ecological Restoration on Soil Erosion in China’s Loess Plateau Region: An Application of the MMF Approach

Land degradation due to erosion is one of the most serious environmental problems in China. To reduce land degradation, the government has taken a number of conservation and restoration measures, including the Sloping Land Conversion Program (SLCP), which was launched in 1999. A logical question is whether these measures have reduced soil erosion at the regional level. The objective of this article is to answer this question by assessing soil erosion dynamics in the Zuli River basin in the Loess Plateau of China from 1999 to 2006. The MMF (Morgan, Morgan and Finney) model was used to simulate changes in runoff and soil erosion over the period of time during which ecological restoration projects were implemented. Some model variables were derived from remotely sensed images to provide improved land surface representation. With an overall accuracy rate of 0.67, our simulations show that increased ground vegetation cover, especially in forestlands and grasslands, has reduced soil erosion by 38.8% on average from 1999 to 2006. During the same time period, however, the change in rainfall pattern has caused a 13.1% ± 4.3% increase in soil erosion, resulting in a net 25.7% ± 8.5% reduction in soil erosion. This suggests that China’s various ecological restoration efforts have been effective in reducing soil loss.     

Sustainable decisions on the agenda – a decision support tool and its application on climate-change adaptation

A decision support tool aiming to facilitate discussion and transparency in land-use planning processes has been developed. It includes process steps initiating with an analysis of the current situation, identification of relevant actions and sustainability analysis steps. The sustainability was subdivided into human health and environment, resources, and social and economic impacts. The main difference between this risk analysis tool and others is the allowance of comparisons of present risks and consequences of measures early in the process. It also includes assessments from short- and long-term perspectives, such as taking into account climate change. It combines classic risk analysis with life-cycle assessment procedure. It has been developed and tested in co-operation with municipalities. The tests show that the tool is applicable and can be relevant in the planning process. It offers an iterative discussion framework that is systematic, condensed and yet a simplistic way of describing consequences. The criticism is that it is regarded as time demanding, but this can be managed by preparatory work.     

Social sustainability – society at the intersection of development and maintenance

Since the late 1980s, much of the debate on sustainability has been dominated by ecological perspectives. However, the last decade has seen an increasing interest in the social aspects of sustainability. While, to some extent, general consensus has been reached regarding the definitions of ecological sustainability, the definition of social sustainability is still in the making. Therefore, there is a need for conceptual frameworks and theoretical constructs in order to develop the understanding of social sustainability further. This article addresses the lack of theorisation and is composed of three different sections. The first section is a literature overview covering some of the most influential texts on social sustainability. The second section introduces and relates a number of existing, polemically constructed theoretical frameworks. In the third section, Jacques Derrida's theory of différance is used to suggest a way of understanding the relationship between the oppositional positions identified in the frameworks.     

Need for a wind of change? Use of offshore wind messages by stakeholders and the media in Germany and their effects on public acceptance

This study investigates German news media coverage and PR material of offshore wind stakeholders from industry, politics, science and civil society thoroughly to provide insights about offshore wind benefits and risks communicated frequently and rarely to the public. By comparative analyses, differences between stakeholder and media messages are revealed: while stakeholders strongly focused on the supportive argument relevance of offshore wind for the energy turnaround, the media often discussed the negative impacts higher costs and delays in grid connection. Furthermore, the influence of offshore wind arguments on acceptance is measured within a survey representative of the German population. With these results, it can be assessed how far influential arguments were presented and which messages have been used frequently despite their low impact. Disruptions to viewscapes, limitation of commercial fishing areas, and hazards to shipping proved to be effective arguments to influence offshore wind acceptance – however, they were seldom used.     

Realization of participation and spatiality in participatory forest management – a policy–practice analysis from Zanzibar,Tanzania

The efforts in sustainable natural resource management have given rise to decentralization of forest governance in the developing world with hopes for better solutions and effective implementation. In this paper, we examine how spatially sensitive participation is realized from policy to practice in the process of establishing participatory forest management in Zanzibar, Tanzania. Our policy–practice analysis shows that the policies in Zanzibar strongly support decentralization and local level participation has in practice been realized. However, the policy does not emphasize participatory process design nor address the possibilities of using spatial information and technologies to ensure wider participation. Thus, the practices fall short in innovativeness of using site-sensitive information with available technologies. Reflecting the Zanzibari Community Forest Management Agreements (CoFMA) context with examples of participatory use of spatial information and technologies in other parts of the world, we discuss ways to improve the Zanzibari CoFMA process towards increased participation, communication, local sense of ownership and more sustainable land management decisions, and argue for the future implementation of CoFMA as a spatially sensitive participatory process.     

Implementation of riverside parks in the city of São Paulo – progress and constraints

The environmental degradation of urban rivers and streams in large cities has led to the development of a variety of public policies. In the city of São Paulo, Brazil, a policy for recovering watercourses and valley floors has been developed with the implementation of riverside parks. This represents a new paradigm for the city in terms of its relationship with rivers and streams. This paper presents the results of an exploratory study, which aimed to analyse riverside parks in the city of São Paulo during the last decade. The study analysed the main management difficulties in relation to these types of urban park during their post-implementation stage, assessing their performance in relation to their social and environmental functions. It addressed issues such as the state of the site before and after the implementation of the riverside park, levels of user satisfaction in relation to the state of the watercourse, sports and leisure facilities, green space, security and the way the park is used. The study showed that riverside parks are recognised as elements that improve the quality of public spaces, socially legitimised as public policies.     

Road effects on abundance and fitness of Galápagos lava lizards (Microlophus albemarlensis)

Vehicle collisions with wildlife have the potential to negatively impact species everywhere roads divide natural habitats; this is especially true in areas where roads are a recent addition to the landscape (e.g., in the last decade) and/or where expansion of a road network is underway. This study addresses the impact of traffic fatalities on lava lizards, Microlophus albemarlensis, on the island of Santa Cruz, Galápagos. The main road bisecting the island north to south was added to the island beginning in 1974 but not fully paved until 2000. We assessed impacts occurring due to traffic and vehicle speeds on the island. This study adds impacts to lizard populations to those conducted on birds on Santa Cruz, providing a means to create multi-species recommendations. To quantify impacts to lizard populations, we assessed lizards on randomly chosen transects perpendicular to the road. We used Poisson regression to analyze those data and found a 30% increase in lizard abundance per 100 m distance from the road across vegetation zones. We compared incidence of prior tail loss of road-killed lizards and live animals to comment on additional energetic costs of occupying near-road territories. Tail condition could not be assessed in some road-killed lizards; among those that we could assess, 29% showed evidence of prior tail loss. That rate declined to apparent baseline conditions of only 1% beyond 200 m from the road. By traveling the length of the 40-km road, we identified hot spots for fatalities of both lizards and birds to provide necessary information for developing management and remediation strategies. We offer guidance on Best Management Practices, such as testing overpasses, fencing and underpasses, which might reduce vehicle impacts to lizards from drivers on the current road. This information is essential because of a planned increase in the Santa Cruz road network in areas where lava lizards are most abundant.     

A review on the production of fermentable sugars from lignocellulosic biomass through conventional and enzymatic route—a comparison

The scarcity of fossil fuels has urged the economically developed countries to find the resources for an alternative energy sources. In apprehension to this, biofuels, like bioethanol and biobutanol, produced from lignocellulosic biomass were considered as potential alternative. There are several methods for the pretreatment of biomass before it is being used as a feedstock for the production of fermentable sugars. However, one of the crucial concerns here is to enumerate an economic pretreatment scheme that can be implemented in large scale for the production of mostly exposed cellulosic part from biomass. This will ensure an effective hydrolysis of cellulose for the production of fermentable sugars and the production of biobutanol from these derived sugars. Moreover, the keynote understanding of an effective fermentation is the production of less inhibitory compounds like furfural, hydroxymethyl furfural during the hydrolysis of cellulose. Enzymatic hydrolysis of cellulose was reported as the most efficient method is this aspect. Trichoderma sp. was found the mostly used resources for the enzyme called cellulase and Aspergillus sp. for hemicellulase enzymes. The most crucial part here is the isolation of proper enzyme that will increase the rate of hydrolysis. Moreover, selection of proper pretreatment process will be a key benefit to the production of fermentable sugars through enzymatic hydrolysis. Based on the biomass nature, the evaluated hot water pretreatment followed by enzymatic hydrolysis with a provision of enzyme reusability (like encapsulated or enzyme separation with membrane) seems to be promising for enhanced biofuel-production.     

Farmers’ markets – linking food consumption and the ecology of food production?

Urban and industrialised societies usually involve little connection between consumers and the resource base upon which the production of goods depends. Changing this situation could potentially enhance social and ecological sustainability. This study explored ecological aspects of the educational role of local food supply, with the aim of identifying signs of enhanced consumer understanding or awareness of the ecology of food production resulting from producer–consumer interaction. A series of qualitative interviews were carried out with customers at a farmers’ market in Stockholm. The results showed that the interviewees were mainly concerned with quality, price and taste, and not production conditions. In addition, a number of interviewees experienced a sense of trust when shopping at the market. We found few examples of contributions to ecological knowledge among customers at the market, but there were some examples of learning opportunities. The local food supplied by the market reminded customers of the seasonality of production. Stallholders also provided information on how to store, prepare and cook vegetables, which may encourage a change in diet that is preferable from an environmental standpoint.     

Do the variable charges really increase the effectiveness and economy of waste management? A case study of the Czech Republic

According to the European regulation regarding waste management (which is reflected in the increasing pressure on municipal waste separation and recycling) the choice of suitable political instruments seems to be crucial. Based on scientific research, the variable charges are considered as an effective choice for the regulation. Unfortunately, scientific research is not followed by a local decision making process within the Czech Republic. One of the reasons discussed in this paper is the economy of variable charges and their influence on administrative costs and total costs of the municipal waste management system. There is no doubt that the effectiveness of variable charges is higher than by fixed fees, but the crucial question for local representatives is not the effectiveness but the economy of charges in the waste management.     

Monetary assessment of the recreational benefits of improved water quality – description of a new model and a case study

The European Union Water Framework Directive (WFD) has created a demand for comparing the benefits and costs of the remedial measures. A major part of the benefits from improved water quality relate to the increased recreational value. However, there is a lack of easily operative and widely applicable quantitative methods to assess the benefits of improved water quality for recreational use. We present a new model to link physical indicators of water quality, water feasibility indicators for different recreational uses, individuals’ perceptions concerning the current feasibility of water for recreational purposes and monetary measures of water-related recreation benefits. The model has been applied to nine lakes, three rivers and one large coastal area in Finland. In this paper, we present the principles of the method and the results from one case study. In Finland, the method has been applied for the economic analysis required in the WFD.     

Co-Creating community gardens on untapped terrain – lessons from a transdisciplinary planning and participation process in the context of municipal housing in Vienna

ABSTRACT

Urban gardening in Vienna, Austria, has gained a new significance over the last ten years. However, although demand is constantly rising and urban gardening is being marketed in many ways, a vast majority of the urban population still has no access to gardening and its various benefits. While community gardening projects in Europe are usually viewed as temporary, self-organised bottom-up initiatives on public or abandoned private land, this case study of the Roda-Roda pilot project shows that community gardening can develop and persist even when favourable conditions for grassroots community gardens are lacking. The vast green spaces separating residential blocks (Abstandsgrün) commonly found in Vienna’s municipal housing (Wiener Gemeindebau) have a huge spatial potential for gardening, along with a forgotten tradition of self-organisation. Using an action research approach, this paper describes two principles for a successful implementation strategy under difficult conditions. Starting with a top-down approach, an interdisciplinary project team implemented a spatial and socio-economic framework that offered a stable basis for participatory community-building. As they “climbed” the ladder of participation stepwise – from exclusion to decision-making and true self-organisation – gardeners gained knowledge, skills and the self-confidence required to run a garden and create a well-working local community. At a more general level, the paper brings a co-creative planning perspective to the scientific discussion on community gardening in Europe and offers a practical approach to making local gardening opportunities available to suitable target groups by tapping into unused spatial potential.