Olschewski, Roland

[["dc.bibliographiccitation.firstpage","314"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Ecological Complexity"],["dc.bibliographiccitation.lastpage","319"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Olschewski, Roland"],["dc.contributor.author","Klein, Alexandra-Maria"],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2017-09-07T11:53:46Z"],["dc.date.available","2017-09-07T11:53:46Z"],["dc.date.issued","2010"],["dc.identifier.doi","10.1016/j.ecocom.2010.01.002"],["dc.identifier.gro","3149964"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6680"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","1476-945X"],["dc.title","Economic trade-offs between carbon sequestration, timber production, and crop pollination in tropical forested landscapes"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","996"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Forest Policy and Economics"],["dc.bibliographiccitation.lastpage","1005"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Tilahun, Mesfin"],["dc.contributor.author","Olschewski, Roland"],["dc.contributor.author","Kleinn, Christoph"],["dc.contributor.author","Gebrehiwot, Kindeya"],["dc.date.accessioned","2017-09-07T11:47:06Z"],["dc.date.available","2017-09-07T11:47:06Z"],["dc.date.issued","2006"],["dc.identifier.doi","10.1016/j.forpol.2006.09.004"],["dc.identifier.gro","3149252"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5908"],["dc.notes.intern","Kleinn Crossref Import"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.publisher","Elsevier BV"],["dc.relation.issn","1389-9341"],["dc.title","Economic analysis of closing degraded Boswellia papyrifera dry forest from human interventions — A study from Tigray, Northern Ethiopia"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","7"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Ecology and Society"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Olschewski, Roland"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Benitez, Pablo C."],["dc.contributor.author","Schwarze, Stefan"],["dc.contributor.author","Klein, Alexandra-Maria"],["dc.date.accessioned","2018-11-07T09:44:34Z"],["dc.date.available","2018-11-07T09:44:34Z"],["dc.date.issued","2006"],["dc.description.abstract","Biodiversity conservation through land-use systems on private land is becoming a pressing environmental policy issue. Agroforestry, such as shade-coffee production, contributes to biodiversity conservation. However, falling coffee prices force many coffee growers to convert their sites into economically more attractive land uses. We performed an economic evaluation of coffee pollination by bees in two distinct tropical regions: an area of low human impact with forests neighboring agroforestry in Indonesia and an area of high human impact with little remaining forest in Ecuador. We evaluated bee pollination for different forest-destruction scenarios, where coffee yields depend on forests to provide nesting sites for bees. We used two novel approaches. First, we examined how coffee net revenues depend on the pollination services of adjacent forests by considering berry weight in addition to fruit set, thereby providing a comprehensive evaluation. Second, we determined the net welfare effects of land-use changes, including the fact that former forestland is normally used for alternative crops. In both regions, crop revenues exceeded coffee pollination values, generating incentives to convert forests, even if owners would be compensated for pollination services. The promotion of certified \"biodiversity-friendly\" coffee is a feasible option to maintain shade-coffee systems. This is of special importance in high-impact areas where only small forest fragments remain. We conclude that a comprehensive economic analysis is necessary to adequately evaluate rainforest preservation for the enhancement of ecosystem services, such as pollination."],["dc.identifier.doi","10.5751/es-01629-110107"],["dc.identifier.gro","3149832"],["dc.identifier.isi","000239121300006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34424"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Resilience Alliance"],["dc.relation.issn","1708-3087"],["dc.title","Economic evaluation of pollination services comparing coffee landscapes in Ecuador and Indonesia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","224"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","AMBIO"],["dc.bibliographiccitation.lastpage","229"],["dc.bibliographiccitation.volume","34"],["dc.contributor.author","de Koning, F."],["dc.contributor.author","Olschewski, Roland"],["dc.contributor.author","Veldkamp, E."],["dc.contributor.author","Benitez, P."],["dc.contributor.author","Lopez-Ulloa, M."],["dc.contributor.author","Schlichter, T."],["dc.contributor.author","de Urquiza, M."],["dc.date.accessioned","2018-11-07T11:01:32Z"],["dc.date.available","2018-11-07T11:01:32Z"],["dc.date.issued","2005"],["dc.description.abstract","Costs of reforestation projects determine their competitiveness with alternative measures to mitigate rising atmospheric CO2 concentrations. We quantify carbon sequestration in above-ground biomass and soils of plantation forests and secondary forests in two countries in South America-Ecuador and Argentina-and calculate costs of temporary carbon sequestration. Costs per temporary certified emission reduction unit vary between 0.1 and 2.7 USD Mg-1 CO2 and mainly depend on opportunity costs, site suitability, discount rates, and certification costs. In Ecuador, secondary forests are a feasible and cost-efficient alternative, whereas in Argentina reforestation on highly suitable land is relatively cheap. Our results can be used to design cost-effective sink projects and to negotiate fair carbon prices for landowners."],["dc.identifier.doi","10.1579/0044-7447-34.3.224"],["dc.identifier.gro","3150174"],["dc.identifier.isi","000229688200008"],["dc.identifier.pmid","16042281"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51170"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Royal Swedish Acad Sciences"],["dc.relation.issn","0044-7447"],["dc.title","The Ecological and Economic Potential of Carbon Sequestration in Forests: Examples from South America"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","695"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Journal of Arid Environments"],["dc.bibliographiccitation.lastpage","702"],["dc.bibliographiccitation.volume","75"],["dc.contributor.author","Tilahun, Mesfin"],["dc.contributor.author","Muys, B."],["dc.contributor.author","Mathijs, E."],["dc.contributor.author","Kleinn, Christoph"],["dc.contributor.author","Olschewski, Roland"],["dc.contributor.author","Gebrehiwot, Kindeya"],["dc.date.accessioned","2017-09-07T11:47:06Z"],["dc.date.available","2017-09-07T11:47:06Z"],["dc.date.issued","2011"],["dc.identifier.doi","10.1016/j.jaridenv.2011.03.005"],["dc.identifier.gro","3149249"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5905"],["dc.notes.intern","Kleinn Crossref Import"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.publisher","Elsevier BV"],["dc.relation.issn","0140-1963"],["dc.title","Frankincense yield assessment and modeling in closed and grazed Boswellia papyrifera woodlands of Tigray, Northern Ethiopia"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","255"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Landscape and Urban Planning"],["dc.bibliographiccitation.lastpage","267"],["dc.bibliographiccitation.volume","83"],["dc.contributor.author","de Koning, G. H. J."],["dc.contributor.author","Benitez, Pablo C."],["dc.contributor.author","Munoz, Fernando"],["dc.contributor.author","Olschewski, Roland"],["dc.date.accessioned","2018-11-07T10:45:29Z"],["dc.date.available","2018-11-07T10:45:29Z"],["dc.date.issued","2007"],["dc.description.abstract","We present a land-use allocation model that evaluates the impact of payments for ecosystem services such as biodiversity conservation on land-use patterns. In a non-linear optimisation procedure, land use is allocated at farm level, taking into account risk behaviour, and spatial as well as temporal variability of net revenues of land-use alternatives, using a spatial resolution of 29 m x 29 m. The model is applied to a study area of 30 km x 34 km in western Ecuador, considered a hotspot for biodiversity. In this coffee growing region, agroforestry systems with shade-coffee are important for biodiversity conservation at the landscape level, but under pressure due to low revenues. Through scenario analyses, we analyse the effects of price premiums per kg, payments per ha, and price buffering for coffee, as well as incentives leading to coffee yield increases, and payments per ha of forest remnants. We compare different risk aversion levels of the involved agents. We conclude that payments per ha are more efficient to maintain or increase coffee areas than payments per kg. Price buffering may be the most cost-effective way to support coffee production, especially at high-risk aversion levels. Significant yield increases are necessary to make coffee more attractive compared to the other alternatives. Relatively low payments per ha of forest can significantly increase forested land. Risk behaviour turns out to be an important factor when determining the possible effect of payments for ecosystem services. We conclude that the model is a versatile tool to support planning of payments for conserving ecosystems. (c) 2007 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.landurbplan.2007.04.010"],["dc.identifier.isi","000251928300004"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/47513"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","0169-2046"],["dc.title","Modelling the impacts of payments for biodiversity conservation on regional land-use patterns"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","380"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Ecological Economics"],["dc.bibliographiccitation.lastpage","394"],["dc.bibliographiccitation.volume","55"],["dc.contributor.author","Olschewski, Roland"],["dc.contributor.author","Benitez, Pablo C."],["dc.date.accessioned","2018-11-07T10:54:17Z"],["dc.date.available","2018-11-07T10:54:17Z"],["dc.date.issued","2005"],["dc.description.abstract","Tropical forestry is often not competitive with agricultural land uses such as pasture for cattle ranching. Additional revenues from carbon sequestration generated by the Clean Development Mechanism (CDM) of the Kyoto Protocol can change this situation. In three different zones of north-western Ecuador, minimum compensation payments for carbon sequestration were determined, which would make reforestation a feasible land-use alternative. Based on our findings that these minimum prices depend on the net benefit of the respective land-use alternatives, and on the accounting regimes for CDM sink projects, we applied the accounting rules for temporary and long-term Certified Emission Reductions (CER) to two reforestation projects: forest plantation and natural regrowth of secondary forest. A comparison of these alternatives showed that secondary forest is an attractive alternative under both accounting regimes because of its low establishment costs and relative early timber revenues. After identifying the zone most suitable for carbon sink projects, we calculated net benefits of land-use changes in the event that certain prices for emission reductions were actually paid. We found that secondary forest becomes economically attractive, if the price of permanent credits is above .5/tCO(2), whereas forest plantations require permanent CER prices of .0/tCO(2). In both cases, the results are within the price margins forecasted by various institutions for the first commitment period of the Kyoto Protocol. The presented methodology is meant to support the decision making process on the supply side of a future CER market. Opportunity costs of land-use changes have to be analyzed carefully before deciding in favor of long binding forestry projects. Assigning temporary credits to naturally regrown secondary forests could-although excluded from CDM during the first commitment period-combine the advantages of a flexible accounting regime with the positive economic and ecological effects of this competitive land use. (c) 2004 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.ecolecon.2004.09.021"],["dc.identifier.isi","000233229000006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49529"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","0921-8009"],["dc.title","Secondary forests as temporary carbon sinks? The economic impact of accounting methods on reforestation projects in the tropics"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","227"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","New Forests"],["dc.bibliographiccitation.lastpage","240"],["dc.bibliographiccitation.volume","37"],["dc.contributor.author","Derwisch, Sebastian"],["dc.contributor.author","Schwendenmann, Luitgard"],["dc.contributor.author","Olschewski, Roland"],["dc.contributor.author","Hölscher, Dirk"],["dc.date.accessioned","2017-09-07T11:45:39Z"],["dc.date.available","2017-09-07T11:45:39Z"],["dc.date.issued","2009"],["dc.description.abstract","Tropical tree plantations may play an important role in mitigating CO2 emissions through their potential to capture and sequester carbon from the atmosphere. The Clean Development Mechanism (CDM) as well as voluntary initiatives provide economic incentives for afforestation and reforestation efforts through the generation and sale of carbon credits. The objectives of our study were to measure the carbon (C) storage potential of 1, 2 and 10-years old Tectona grandis plantations in the province of Chiriquí, Western Panama and to calculate the monetary value of aboveground C storage if sold as Certified Emission Reduction (CER) carbon credits. The average aboveground C storage ranged from 2.9 Mg C ha−1 in the 1-year-old plantations to 40.7 Mg C ha−1 in the 10-year-old plantations. Using regression analysis we estimated the potential aboveground C storage of the teak plantation over a 20 year rotation period. The CO2-storage over this period amounted to 191.1 Mg CO2 ha−1. The discounted revenues that could be obtained by issuance of carbon credits during a 20 year rotation period were about US60 for temporary CER and US60 for long-term CER, and thus, contribute to a minor extent (1%) to overall revenues, only."],["dc.identifier.doi","10.1007/s11056-008-9119-2"],["dc.identifier.gro","3149054"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6809"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5697"],["dc.language.iso","en"],["dc.notes.intern","Hoelscher Crossref import"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0169-4286"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Estimation and economic evaluation of aboveground carbon storage of Tectona grandis plantations in Western Panama"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","12"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","GAIA - Ecological Perspectives for Science and Society"],["dc.bibliographiccitation.lastpage","16"],["dc.bibliographiccitation.volume","17"],["dc.contributor.author","Klein, Alexandra-Maria"],["dc.contributor.author","Olschewski, Roland"],["dc.contributor.author","Kremen, Claire"],["dc.date.accessioned","2018-11-07T11:19:58Z"],["dc.date.available","2018-11-07T11:19:58Z"],["dc.date.issued","2008"],["dc.identifier.isi","000254299400003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/55416"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0940-5550"],["dc.title","The ecosystem service controversy: Is there sufficient evidence for a \"pollination paradox\"?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","219"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","ALLGEMEINE FORST UND JAGDZEITUNG"],["dc.bibliographiccitation.lastpage","225"],["dc.bibliographiccitation.volume","179"],["dc.contributor.author","Gomez, M. Gonzalez"],["dc.contributor.author","Olschewski, Roland"],["dc.date.accessioned","2018-11-07T11:08:17Z"],["dc.date.available","2018-11-07T11:08:17Z"],["dc.date.issued","2008"],["dc.description.abstract","Along the Atlantic coastline of the Iberian Peninsula more and more plantations of Eukalyptus globulus and Pinus radiata have been established with the main purpose to produce short rotation wood for the Pulp and panel industry, whereas forest ecosystem services, such as recreation or conservation, have been neglected. The paper reports the results of a valuation of different forest management alternatives in the study region. The target population was the Galician general public and responses were collected by personal interviews of randomly selected respondents. In a choice experiment they were asked to choose between different management alternatives, described in terms of different attributes and particular levels of these attributes ((i) percentage of area used for recreation and conservation purposes, (ii) occurrence of forest plantations, Atlantic broadleaved stands or areas without tree cover and (iii) a payment vehicle). The study shows that focussing on Financial goals while neglecting the impact on the landscape level might conflict with the preferences of the population and have negative results on tourism. The willingness to pay for a 10% increase of forest area for conservation and recreation purposes is 478 Euro per household. For changing land use from forest plantations to more than 50% Atlantic broadleaved stands we determined a willingness to pay of 400 Euro, whereas for reforestation of current non-productive land a value of 184 Euro per household has been estimated."],["dc.identifier.isi","000262793400002"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/52738"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","J D Sauerlanders Verlag"],["dc.relation.issn","0002-5852"],["dc.title","Valuation of forest land uses in the coastal region of Spain and Portugal."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]