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    Item type:EMFIG - EKBY Collection,
    Agroforestry and the Climate Crisis: Prioritizing Biodiversity Restoration for Resilient and Productive Mediterranean Landscapes
    (2024-09-19)
    This study deals with the future of the traditional agroforestry systems (TAFSs) in the northern Mediterranean Basin. Important productive systems, such as ancient non-irrigated olive groves and extensive silvopastoral systems, from subalpine grasslands to coastal landscapes, are being irreversibly degraded, threatening the bio-cultural heritage of the Mediterranean region, an area recognized as a global biodiversity hotspot. In the midst of the global biodiversity and climate crisis, immediate actions are proposed for the protection and conservation management of TAFSs, within a new EU policy framework. Having the TAFSs of Greece in the spotlight of this analysis, a four-step approach was used in order to review the value of agroforestry in terms of (a) biodiversity (birds, mammals, invertebrates and soil biota), (b) agroforestry landscapes, such as traditional olive groves on terraces and valonia silvopastoral systems, (c) ecosystem services, especially concerning cultural values, and (d) the modern threats to traditional agroforestry. Through this research, problems are highlighted and European policy priorities are defined. Our conclusion is that there is an immediate need to revise the European Union rural, forestry, and environmental policies in the Mediterranean region, following the provisions of the new EU Nature Restoration Law, in order to revive agroforestry landscapes and make them productive and sustainable again for the benefit of rural economies, local communities, and biodiversity, especially in marginal Mediterranean mountainous and island areas, where depopulation and susceptibility to wildfires are major threats.
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    Item type:EMFIG - EKBY Collection,
    Assessing Lake Response to Extreme Climate Change Using the Coupled MIKE SHE/MIKE 11 Model: Case Study of Lake Zazari in Greece
    (2022-03-28)
    D. Papadimos
    Lakes, either artificial or natural, are greatly important as a component in their catchments’ hydrology, but also as ecosystem service providers. However, due to climate change, they have begun to face numerous problems with their water quality and quantity. Furthermore, general circulation models (GCMs) show future climate change with a reduction in rainfall and increase in temperature. The aim of the current study is to present an application where GCMs and state-of-the-art hydrological modelling system MIKE SHE/MIKE 11 are combined for assessing the response of a Greek lake in terms of its water balance and water level under climate change. Four general circulation models (GCMs; GFDL-CM3, MIROC-ESM-CHEM, MIROC-ESM, IPSL-CM5A-LR) for the extreme climate change scenario of RCP8.5 were used in the basin of Lake Zazari in Greece as a case study. Results showed that, by keeping the irrigated demands (the main water user) unchanged in the future, the lake exhibited a lower water level for all GCMs, fluctuating from −0.70 to −1.8 m for the mean (min)water level and from −0.30 to −1.20 m for the mean (max) water level. Instead of the above and by preserving the amount of withdraw water n from the lake at a certain percentage of inflows, the irrigated area should be reduced from 54.1% to 64.05% depending on the circulation model.
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    Item type:EMFIG - EKBY Collection,
    A Simplistic Approach for Assessing Hydroclimatic Vulnerability of Lakes and Reservoirs with Regulated Superficial Outflow
    (2019-07-24)
    K. Demertzi
    ;
    D. Papadimos
    ;
    V. Aschonitis
    ;
    D. Papamichail
    This study proposes a simplistic model for assessing the hydroclimatic vulnerability of lakes/reservoirs (LRs) that preserve their steady-state conditions based on regulated superficial discharge (Qd) out of the LR drainage basin. The model is a modification of the Bracht-Flyr et al. method that was initially proposed for natural lakes in closed basins with no superficial discharge outside the basin (Qd = 0) and under water-limited environmental conditions {mean annual ratio of potential/reference evapotranspiration (ETo) versus rainfall (P) greater than 1}. In the proposed modified approach, an additional Qd function is included. The modified model is applied using as a case study the Oreastiada Lake, which is located inside the Kastoria basin in Greece. Six years of observed data of P, ETo, Qd, and lake topography were used to calibrate the modified model based on the current conditions. The calibrated model was also used to assess the future lake conditions based on the future climatic projections (mean conditions of 2061-2080) derived by 19 general circulation models (GCMs) for three cases of climate change (three cases of Representative Concentration Pathways: RCP2.6, RCP4.5 and RCP8.5). The modified method can be used as a diagnostic tool in water-limited environments for analyzing the superficial discharge changes of LRs under di erent climatic conditions and to support the design of new management strategies for mitigating the impact of climate change on (a) flooding conditions, (b) hydroelectric production, (c) irrigation/industrial/domestic use and (d) minimum ecological flows to downstream rivers. Hydrology 6(3), 61. https://doi.org/10.3390/hydrology6030061
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    Item type:EMFIG - EKBY Collection,
    Assessing lake vulnerability to climate change using the coupled MIKE SHE/MIKE 11 model: Case study of Lake Zazari in Greece. Paper presented at 11th World Congress on Water Resources and Environment (EWRA 2019) “Managing Water Resources for a Sustainable Future”. Madrid, Spain, 25-29 June 2019
    (2019-07-04)
    D. Papadimos
    If the worst predictions of general circulation models (GCMs) about climate change become true, then lakes will hardly manage to maintain their current conditions (Zhang et al. 2016) especially in regions, which have been identified as climate change hot spots such as the countries of Mediterranean Basin (Loizidou et al. 2016) from which Greece is of special interest since it has 54 lakes/reservoirs of 0.5 km2 minimum size. The hydrological models are important tools for assessing the water balance components of lakes and for supporting the design of water management strategies. Depending on the modelling purposes and the specific attributes of a lake, different types of models and different levels of model complexities can be selected, starting from complex models such as MIKE SHE (Abbott et al. 1986), WATLAC (Zhang 2011) or using simpler methods (Yang et al. 2018). The MIKE model is among the most integrated models and has been used in the past for similar cases (Singh et al. 2010), while in combination with the future climate projections of general circulation models (GCMs), can be used to investigate lake conditions under future climate scenarios. The aim of this study is to present an application for analyzing the vulnerability of a lake to climate change using the MIKE SHE/11 model using as a case study the Lake Zazari in Greece.
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    Item type:EMFIG - EKBY Collection,
    Drought Vulnerability Index (DVI) in Attica Region, Greece using climate models upon the climate scenarios A1B and A2. ORIENTGATE Technical Report
    (Greek Biotope/Wetland Centre (EKBY), 2017-03-08)
    D. Papadimos
    ;
    S. Katsavouni
    The study was commissioned within the preparation of the River Basin Management Plan of Attica Water District (Ministry of Environment 2013). Its main purpose was to: a) quantify the effects of drought and water shortage in the water district of Attica, b) to examine possible methodologies for predicting future incidents and c) to propose remedies for various levels of risk. This essay aims to strengthen the effectiveness of the above "Drought and Water shortage Management Plan" of the Attica Water District, by enhancing the forecasting process of future drought incidents.
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    Item type:EMFIG - EKBY Collection,
    Guidelines for the adaptation of forest management to climate change in Greece
    (Greek Biotope/Wetland Centre (EKBY), 2017-02-24)
    The purpose of the present publication is to enhance the capacity of the personnel of Greek Forest Services to detect the impacts of climate change in good time and then manage the forest ecosystems within their competence, accordingly.In the following chapters, a brief description of the Greek forests (per forest vegetation zone), their functions (benefits to communities) and the threats they encounter are provided. Next, a specific reference on threats arising due to climate change is provided, as regards forest productivity, biodiversity, water regime, forest fires and pathogens. The main part of this publication includes a detailed description of the three steps required to adapt the management of Greek forests to climate change (vulnerability assessment, design and implementation of adaptation measures, monitoring-review). Following that, specific adaptation measures for forest management are proposed, categorized per a) forest function and b) Greek forest ecosystem (vegetation type). Finally, certain general measures are included. Below each step, a brief description of the approach adopted and demonstrated at four study areas in the framework the LIFE+ AdaptFor Project is provided (as a case study).