33 research outputs found

    Oil Pollution Caused by Tanker Accidents: Liability versus Regulation

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    Mapping ecosystem services' values: Current practice and future prospects

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    Mapping of ecosystem services' (ESS) values means valuing ESS in monetary terms across a relatively large geographical area and assessing how values vary across space. Thereby, mapping of ESS values reveals additional information as compared to traditional site-specific ESS valuation, which is beneficial for designing land use policies for maintaining ESS supply. Since the well-known article by Costanza et al. (1997), who mapped global ESS values, the number of publications mapping ESS values has grown exponentially, with almost 60% being published after 2007. Within this paper, we analyse and review articles that map ESS values. Our findings show that methodologies, in particular how spatial variations of ESS values are estimated, their spatial scope, rational and ESS focus differ widely. Still, most case studies rely on relatively simplistic approaches using land use/cover data as a proxy for ESS supply and its values. However, a tendency exists towards more sophisticated methodologies using the ESS models and value functions, which integrate a variety of spatial variables and which are validated against primary data. Based on our findings, we identify current practices and developments in the mapping of EES values and provide guidelines and recommendations for future applications and research

    Mapping the Recreational Value of Non-Urban Ecosystems across Europe: Combining Meta-Analysis and GIS

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    We map recreational visits and the economic value per visit spatially explicit across Europe’s non-urban ecosystems using GIS, meta-analysis and geostatistical modelling techniques. Therefore, we develop a meta-analytic visitor arrival function and a meta-analytic value transfer function by regression analysis. Primary data on the dependent variables are collected from visitor monitoring and valuation studies. We analyse more than 225 studies including visitor counts and value estimates to more than 550 separate case study areas. Focusing on continuous spatial biophysical and socio-economic predictor variables, we identify underlying spatial drivers of recreational ecosystem service values. By combining our models with spatial explanatory variable layers we predict annual recreational visits and the value per visit on a one km² resolution across Europe. The resulting maps illustrate spatial variations of recreational visitor numbers and the value per visit. In total we predict about 11 billion annual visits to Europe’s non-urban ecosystems amounting an economic value of € 57 billion. Comparing our estimates with mean/unit value transfers reveals that the spatial variations of visitor numbers are substantially more important for determining the recreational value per ha than variations in the value per visit

    Monitoring recreation across European nature areas: A geo-database of visitor counts, a review of literature and a call for a visitor counting reporting standard

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    Nature recreation and tourism is a substantial ecosystem service of Europe’s countryside that has a substantial economic value and contributes considerably to income and employment of local communities. Highlighting the recreational value and economic contribution of nature areas can be used as a strong argument for the funding of protected and recreational areas. The total number of recreational visits of a nature area has been recognised as a major determinant of its economic recreational value and its contribution to local economies. This paper presents an international geodatabase on recreational visitor numbers to non-urban ecosystems, containing 1,267 observations at 518 separate case study areas throughout Europe. The monitored sites are described by their centroid coordinates and shape files displaying the exact extension of the sites. Therefore, the database illustrates the spatial distribution of visitor counting throughout Europe and can be used for secondary research, such as for validation of spatially explicit recreational ecosystem service models and for identifying relevant drivers of recreational ecosystem services. To develop the database, we review visitor monitoring literature throughout Europe and give an overview of such activities with special attention to visitor counting. We identify one major shortcoming in available literature, which relates to the presentation, study area definition and methodological reporting of conducted visitor counting studies. Insufficient reporting hampers the identification of the study area, the comparability of different studies and the evaluation of the studies’ quality. Based on our findings, we propose a standardised reporting template for visitor counting studies and advanced data sharing for recreational visitor data. Researchers and institutions are invited to report on their visitor counting studies via our web interface at rris.biopama.org/visitor-reporting to contribute to a global visitor database that will be shared via the ESP Visualisation tool (http://esp-mapping.net)

    Zur Erhaltung genetischer Ressourcen

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    Environmental assessment and protection measures in industrial development projects the German bilateral aid program

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    SIGLEUuStB Koeln(38)-861100209 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

    Naturkapital und Klimapolitik

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    Take your swimsuit along: the value of improving urban bathing sites in the metropolitan area of Berlin

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    Many inhabitants of Berlin enjoy bathing in lakes and rivers during the summer. However, so far no data exist about who goes bathing and what quality bathers expect from bathing sites. In an online survey conducted during the summer of 2007 respondents were presented with a choice experiment concerning various attributes of bathing sites such as water quality or cleanliness of the beach. Applying both random parameter logit models as well as a latent class model reveals that unobserved taste heterogeneity is present among bathers, i.e. not all bathers would benefit equally from improving bathing sites. A test concerning preference consistency reveals high internal validity.bathing sites, choice experiments, mixed logit, latent class, urban recreation,
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