@article{Zyla2011, author = {Zyla, Benjamin}, title = {Außenpolitisches Selbstverst{\"a}ndnis}, series = {WeltTrends-Papiere}, journal = {WeltTrends-Papiere}, number = {20}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1864-0656}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62791}, pages = {38 -- 41}, year = {2011}, language = {de} } @article{ZielhoferSchmidtReicheetal.2022, author = {Zielhofer, Christoph and Schmidt, Johannes and Reiche, Niklas and Tautenhahn, Marie and Ballasus, Helen and Burkart, Michael and Linst{\"a}dter, Anja and Dietze, Elisabeth and Kaiser, Knut and Mehler, Natascha}, title = {The lower Havel River Region (Brandenburg, Germany)}, series = {Water}, volume = {14}, journal = {Water}, number = {3}, publisher = {MDPI}, address = {Basel}, issn = {2073-4441}, doi = {10.3390/w14030480}, pages = {23}, year = {2022}, abstract = {Instrumental data show that the groundwater and lake levels in Northeast Germany have decreased over the past decades, and this process has accelerated over the past few years. In addition to global warming, the direct influence of humans on the local water balance is suspected to be the cause. Since the instrumental data usually go back only a few decades, little is known about the multidecadal to centennial-scale trend, which also takes long-term climate variation and the long-term influence by humans on the water balance into account. This study aims to quantitatively reconstruct the surface water areas in the Lower Havel Inner Delta and of adjacent Lake Gulpe in Brandenburg. The analysis includes the calculation of surface water areas from historical and modern maps from 1797 to 2020. The major finding is that surface water areas have decreased by approximately 30\% since the pre-industrial period, with the decline being continuous. Our data show that the comprehensive measures in Lower Havel hydro-engineering correspond with groundwater lowering that started before recent global warming. Further, large-scale melioration measures with increasing water demands in the upstream wetlands beginning from the 1960s to the 1980s may have amplified the decline in downstream surface water areas.}, language = {en} } @article{WutzlerHudsonThieken2022, author = {Wutzler, Bianca and Hudson, Paul and Thieken, Annegret}, title = {Adaptation strategies of flood-damaged businesses in Germany}, series = {Frontiers in water}, volume = {4}, journal = {Frontiers in water}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2624-9375}, doi = {10.3389/frwa.2022.932061}, pages = {13}, year = {2022}, abstract = {Flood risk management in Germany follows an integrative approach in which both private households and businesses can make an important contribution to reducing flood damage by implementing property-level adaptation measures. While the flood adaptation behavior of private households has already been widely researched, comparatively less attention has been paid to the adaptation strategies of businesses. However, their ability to cope with flood risk plays an important role in the social and economic development of a flood-prone region. Therefore, using quantitative survey data, this study aims to identify different strategies and adaptation drivers of 557 businesses damaged by a riverine flood in 2013 and 104 businesses damaged by pluvial or flash floods between 2014 and 2017. Our results indicate that a low perceived self-efficacy may be an important factor that can reduce the motivation of businesses to adapt to flood risk. Furthermore, property-owners tended to act more proactively than tenants. In addition, high experience with previous flood events and low perceived response costs could strengthen proactive adaptation behavior. These findings should be considered in business-tailored risk communication.}, language = {en} } @article{WutzlerHudsonThieken2022, author = {Wutzler, Bianca and Hudson, Paul and Thieken, Annegret}, title = {Adaptation strategies of flood-damaged businesses in Germany}, series = {Frontiers in Water}, journal = {Frontiers in Water}, publisher = {Frontiers Media SA}, address = {Lausanne, Schweiz}, issn = {2624-9375}, doi = {10.3389/frwa.2022.932061}, pages = {13}, year = {2022}, abstract = {Flood risk management in Germany follows an integrative approach in which both private households and businesses can make an important contribution to reducing flood damage by implementing property-level adaptation measures. While the flood adaptation behavior of private households has already been widely researched, comparatively less attention has been paid to the adaptation strategies of businesses. However, their ability to cope with flood risk plays an important role in the social and economic development of a flood-prone region. Therefore, using quantitative survey data, this study aims to identify different strategies and adaptation drivers of 557 businesses damaged by a riverine flood in 2013 and 104 businesses damaged by pluvial or flash floods between 2014 and 2017. Our results indicate that a low perceived self-efficacy may be an important factor that can reduce the motivation of businesses to adapt to flood risk. Furthermore, property-owners tended to act more proactively than tenants. In addition, high experience with previous flood events and low perceived response costs could strengthen proactive adaptation behavior. These findings should be considered in business-tailored risk communication.}, language = {en} } @article{Woop2010, author = {Woop, Gerry}, title = {Probleme europ{\"a}ischer Sicherheitspolitik}, series = {WeltTrends-Papiere}, journal = {WeltTrends-Papiere}, number = {15}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1864-0656}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62975}, pages = {87 -- 95}, year = {2010}, abstract = {Inhalt: NATO EU Herausforderungen}, language = {de} } @article{WendeWojtkiewiczMarschalletal.2012, author = {Wende, Wolfgang and Wojtkiewicz, Wera and Marschall, Ilke and Heiland, Stefan and Lipp, Torsten and Reinke, Markus and Schaal, Peter and Schmidt, Catrin}, title = {Putting the plan into practice implementation of proposals for measures of local landscape plans}, series = {Landscape research}, volume = {37}, journal = {Landscape research}, number = {4}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {0142-6397}, doi = {10.1080/01426397.2011.592575}, pages = {483 -- 500}, year = {2012}, abstract = {The knowledge of the effectiveness of local landscape planning in Germany is in the main limited to particular cases and derives mostly from qualitative single case studies. This applies especially to the implementation of measures defined by landscape plans. To fill that gap, the paper focuses on the implementation of those measures. Furthermore, it discusses the factors and framework conditions which are crucial for this implementation. The potential factors and conditions of influence were derived from theory and compiled in 20 investigation hypotheses. In order to gain information on the execution of the measures, 28 randomly selected plans were first analysed, then interviews were carried out with administration representatives. It can be stated that landscape planning has positively influenced the development of nature and landscape in the investigated municipalities. A considerable number of measures had been implemented, although landscape planning as a supply-side instrument proposes generally a very large number of measures. Factors with a positive effect on the implementation of landscape planning measures are pointed out.}, language = {en} } @article{WebberLischeidSommeretal.2020, author = {Webber, Heidi and Lischeid, Gunnar and Sommer, Michael and Finger, Robert and Nendel, Claas and Gaiser, Thomas and Ewert, Frank}, title = {No perfect storm for crop yield failure in Germany}, series = {Environmental research letters}, volume = {15}, journal = {Environmental research letters}, number = {10}, publisher = {IOP Publ. Ltd.}, address = {Bristol}, issn = {1748-9326}, doi = {10.1088/1748-9326/aba2a4}, pages = {14}, year = {2020}, abstract = {Large-scale crop yield failures are increasingly associated with food price spikes and food insecurity and are a large source of income risk for farmers. While the evidence linking extreme weather to yield failures is clear, consensus on the broader set of weather drivers and conditions responsible for recent yield failures is lacking. We investigate this for the case of four major crops in Germany over the past 20 years using a combination of machine learning and process-based modelling. Our results confirm that years associated with widespread yield failures across crops were generally associated with severe drought, such as in 2018 and to a lesser extent 2003. However, for years with more localized yield failures and large differences in spatial patterns of yield failures between crops, no single driver or combination of drivers was identified. Relatively large residuals of unexplained variation likely indicate the importance of non-weather related factors, such as management (pest, weed and nutrient management and possible interactions with weather) explaining yield failures. Models to inform adaptation planning at farm, market or policy levels are here suggested to require consideration of cumulative resource capture and use, as well as effects of extreme events, the latter largely missing in process-based models. However, increasingly novel combinations of weather events under climate change may limit the extent to which data driven methods can replace process-based models in risk assessments.}, language = {en} } @article{Volgmann2010, author = {Volgmann, Uta}, title = {Die politische Debatte {\"u}ber die europ{\"a}ische Verfassung in Polen}, series = {WeltTrends-Papiere}, journal = {WeltTrends-Papiere}, number = {15}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1864-0656}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-63113}, pages = {253 -- 270}, year = {2010}, abstract = {Inhalt: Theoretische Grundlagen der Verfassungsgesetzgebung ; Verfassungsgesetzgebung und Verfassungsbedeutung ; Europ{\"a}ischer Verfassungsgebungsprozess ; Verfassungsausarbeitung , Verfassungsdiskussion , Akt der Verfassungsgebung , Verfassungsbedeutung, symbolische Funktionen und Identit{\"a}tsstiftung , Eine Verfassung f{\"u}r die EU-B{\"u}rger ; Die europ{\"a}ische Verfassung aus polnischer Sicht ; Erarbeitung der europ{\"a}ischen Verfassung im Konvent ; Eine europ{\"a}ische Verfassung f{\"u}r die B{\"u}rger? ; Ratifikation der europ{\"a}ischen Verfassung ; Identit{\"a}tsstiftung durch eine europ{\"a}ische Verfassung? ; Vertrag statt Verfassung ; Literatur}, language = {de} } @article{VogelWeiseSchroeteretal.2018, author = {Vogel, Kristin and Weise, Laura and Schr{\"o}ter, Kai and Thieken, Annegret}, title = {Identifying Driving Factors in Flood-Damaging Processes Using Graphical Models}, series = {Water resources research}, volume = {54}, journal = {Water resources research}, number = {11}, publisher = {American Geophysical Union}, address = {Washington}, issn = {0043-1397}, doi = {10.1029/2018WR022858}, pages = {8864 -- 8889}, year = {2018}, abstract = {Flood damage estimation is a core task in flood risk assessments and requires reliable flood loss models. Identifying the driving factors of flood loss at residential buildings and gaining insight into their relations is important to improve our understanding of flood damage processes. For that purpose, we learn probabilistic graphical models, which capture and illustrate (in-)dependencies between the considered variables. The models are learned based on postevent surveys with flood-affected residents after six flood events, which occurred in Germany between 2002 and 2013. Besides the sustained building damage, the survey data contain information about flooding parameters, early warning and emergency measures, property-level mitigation measures and preparedness, socioeconomic characteristics of the household, and building characteristics. The analysis considers the entire data set with a total of 4,468 cases as well as subsets of the data set partitioned into single flood events and flood types: river floods, levee breaches, surface water flooding, and groundwater floods, to reveal differences in the damaging processes. The learned networks suggest that the flood loss ratio of residential buildings is directly influenced by hydrological and hydraulic aspects as well as by building characteristics and property-level mitigation measures. The study demonstrates also that for different flood events and process types the building damage is influenced by varying factors. This suggests that flood damage models need to be capable of reproducing these differences for spatial and temporal model transfers.}, language = {en} } @article{SteckerKachelPaasch2021, author = {Stecker, Christian and Kachel, Jannis and Paasch, Jana}, title = {Muster der Landesgesetzgebung}, series = {Politische Vierteljahresschrift : PVS : German political science quarterly / hrsg. vom Vorstand der Deutschen Vereinigung f{\"u}r Politikwissenschaft}, volume = {62}, journal = {Politische Vierteljahresschrift : PVS : German political science quarterly / hrsg. vom Vorstand der Deutschen Vereinigung f{\"u}r Politikwissenschaft}, number = {2}, publisher = {Springer VS}, address = {Wiesbaden}, issn = {0032-3470}, doi = {10.1007/s11615-021-00307-0}, pages = {307 -- 324}, year = {2021}, abstract = {This research note presents the first systematic documentation of the legislative process in the German state parliaments. The data set comprises 16,610 bills between 1990 and 2020. After a description of the data, we provide illustrative insights into the patterns of law-making. It is shown that these patterns are dominated by the new dualism between government and opposition. Furthermore, the incentives of issue competition are clearly present in the legislative initiatives. There is no evidence, however, for the expectation that intracoalitional policy distance prolongs the duration of legislative procedures. The published data provides scholars with the opportunity to investigate various additional research questions.}, language = {de} }