TY - JOUR A1 - Miegel, Konrad A1 - Graeff, Thomas A1 - Selle, Benny A1 - Salzmann, Thomas A1 - Franck, Christian A1 - Bronstert, Axel T1 - Investigation of a renatured fen on the Baltic Sea coast of Mecklenburg - Part I: System description and basic hydrological characterisation JF - Hydrologie und Wasserbewirtschaftung KW - Baltic Sea Coast KW - coastal wetland KW - drainage of the catchment area KW - fens KW - groundwater flow KW - management effects KW - system analysis KW - water balance Y1 - 2016 U6 - https://doi.org/10.5675/HyWa_2016.4_1 SN - 1439-1783 VL - 60 SP - 242 EP - 258 PB - Bundesanst. für Gewässerkunde CY - Koblenz ER - TY - JOUR A1 - Selle, Benny A1 - Graeff, Thomas A1 - Salzmann, Thomas A1 - Oswald, Sascha Eric A1 - Walther, Marc A1 - Miegel, Konrad T1 - Investigation of a renatured fen catchment on the Baltic Sea coast of Mecklenburg - Part II: Salt dynamics and water balance JF - Hydrologie und Wasserbewirtschaftung N2 - Coastal fens like the nature reserve "Hutelmoor und Heiligensee" (north-eastern Germany) are important landscape elements along the southern Baltic coast, which exchange fresh water and brackish water with the Baltic Sea. These exchange processes can be understood as experiments with a natural tracer, which may be used to investigate the hydrologic behaviour of these fen systems. With the establishment of coastal protection measures such as dunes and dikes, the installation of surface drainage and, more recently, also nature conservation measures, the hydrologic regime of these coastal wetlands has constantly altered over the last centuries.The rehabilitated wetland "Hutelnnoor und Heiligensee" is suitable for an analysis of hydrologic change as it has been monitored over the time period since nature conservation measures started in the 1990s. Collected data sets included observation of groundwater levels and electrical conductivities, weather data as well as discharge at the outlet of the drainage catchment. In this article, as a second part of the dual publication, processes and quantified process magnitudes have been identified that govern the salt balance of the study area including its variability in space and time. It was detected that - over the period of rehabilitation - salt water entered the catchment with an episodic storm surge by wave overtopping of dunes in 1995. The intruded brackish water was then diluted, which was a slow process extending over decades. It was governed by local groundwater recharge from precipitation and the inflow of relatively fresh groundwater from the hinterland. It is concluded that salt inputs from the Baltic Sea provide a natural tracer of hydrological processes, which can be readily monitored via electrical conductivity measurements. KW - Baltic Sea KW - coastal wetland KW - drainage of the catchment area KW - groundwater flow KW - management effects KW - system analysis KW - water balance Y1 - 2016 U6 - https://doi.org/10.5675/HyWa_2016.4_2 SN - 1439-1783 VL - 60 SP - 259 EP - 268 PB - Bundesanst. für Gewässerkunde CY - Koblenz ER - TY - THES A1 - Ullrich, André T1 - Eigenschaften wandlungsfähiger Systeme T1 - Characteristics of changeable systems BT - Erarbeitung eines Indikatorsystems BT - development of an indicator system N2 - Wandlungsfähigkeit beschreibt die Fähigkeit eines Systems, proaktiv oder reaktiv Maßnahmen für die Modifikation seiner Eigenschaften schnell und effizient zu entwickeln, umzusetzen und anzuwenden sowie sich proaktiv darauf vorzubereiten, inaktiv zu sein und passiv Einwirkungen aus der Umwelt zu tolerieren. Die Eigenschaften wandlungsfähiger Systeme werden häufig als Indikatoren (z.B. Modularität, Wissen) verwendet. Dabei existiert eine Vielzahl potenzieller Indikatoren, deren jeweilige Relevanz jedoch ungeklärt ist. Hier setzt die Zielstellung der vorliegenden Arbeit an. Das Erkenntnisziel ist die Erklärung der Wandlungsfähigkeit sozio-technischer Systeme. Zu diesem Zweck wird ein Erklärungsmodell der indikatorbasierten Wandlungsfähigkeit erstellt, das zum Nachweis von Wandlungsfähigkeit, zur Bewertung dieser sowie zur Systemanalyse genutzt werden kann. Weiterhin wird exemplarisch eine positive Korrelation von Wandlungsfähigkeit und Schnelligkeit sowie Effizienz bei Veränderungsprojekten nachgewiesen. N2 - Change capability describes the ability of a system to proactively or reactively develop, implement, and apply measures for the modification of its properties quickly and efficiently, as well as be proactively prepared to be inactive and passively tolerate environmental impacts. The properties of changeable systems are often used as indicators (e.g. modularity, knowledge) of change capability. Thus, diverse potential indicators exist. However, there is no reliable evidence of the relevance of any one in particular. This is exactly where the goal of this thesis sets in. The goal is the explanation of socio-technical systems’ change capability. For this purpose, an explanatory model of the indicator-based change capability is developed, that enables (1) empirical evidence of change capability, (2) evaluation of change capability, and (3) can be used for system analysis. Furthermore, an exemplary proof of a positive correlation between a system's high change capability and its high velocity and efficiency in implementing change projects is identified. KW - Bewertung KW - Systemanalyse KW - Wandlungsfähigkeit KW - change capability KW - evaluation KW - system analysis Y1 - 2018 SN - 978-3-95545-265-0 PB - GITO CY - Berlin ER -