@misc{SchneiderGerkeMaureretal., author = {Schneider, Anna and Gerke, Horst H. and Maurer, Thomas and Seifert, Stefan and Nenov, Rossen and H{\"u}ttl, Reinhard F.}, title = {Evaluation of remotely-sensed DEMs and modification based on plausibility rules and initial sediment budgets of an artificially-created catchment}, series = {Earth Surface Processes and Landforms}, volume = {37}, journal = {Earth Surface Processes and Landforms}, number = {7}, issn = {1096-9837}, pages = {708 -- 725}, language = {en} } @misc{SchneiderGerkeMaureretal., author = {Schneider, Anna and Gerke, Horst H. and Maurer, Thomas and Nenov, Rossen}, title = {Initial hydro-geomorphic development and rill network evolution in an artificial catchment}, series = {Earth Surface Processes and Landforms}, volume = {38}, journal = {Earth Surface Processes and Landforms}, number = {13}, issn = {1096-9837}, doi = {10.1002/esp.3384}, pages = {1496 -- 1512}, abstract = {The formation of erosion rills and gullies is a critical step in land surface development, but possibilities to study initial unaffected surface development under natural conditions and with well-defined initial and boundary conditions are rare. The objective of this study was to characterize rill network development from 'point zero' in the artificially-created catchment 'H{\"u}hnerwasser'. To ensure unaffected development, the study was largely restricted to the analysis of remotely-sensed data. We analyzed a series of photogrammetry-based digital elevation models (DEMs) for 10 points in time, over a period of five years and beginning with the initial state. The evolving erosion rill network was quantitatively described based on mapping from aerial photographs. DEMs and rill network maps were combined to specifically analyze the development of morphometry for different parts of the network and to characterize energy dissipation and connectivity. The restriction to remote-sensing data did not allow for analyzing specific processes governing rill network development, nevertheless, two major development phases could be characterized. We observed a phase of growth of the rill network along with variations in drainage patterns during the first two years of development and a subsequent phase of reduction of its area along with comparably stable patterns. Region-specific analysis of morphometry indicates that, besides effects of changing sediment characteristics and vegetation cover development, locally evolving hydro-geomorphic feedback cycles influenced this development. Results show an increasing similarity of overall statistical characteristics (e.g. drainage density) for two parts of the catchment, but a persistent influence of initial conditions on specific rill geometry. The observed development towards higher orderliness and increased connectivity is consistent with experiments and concepts on drainage network evolution across scales; however, we did not observe major influences of rill piracy and cross grading or a reduction of energy dissipation with network development.}, language = {en} } @inproceedings{GassertEnderNenovetal., author = {Gassert, Egbert and Ender, Remo and Nenov, Rossen and Leßmann, Dieter}, title = {Analyse der Vegetationsentwicklung am Beispiel eines Teichs in der Bergbaufolgelandschaft}, series = {Ergebnisse der Jahrestagung 2017 der Deutschen Gesellschaft f{\"u}r Limnologie (DGL) in Cottbus}, booktitle = {Ergebnisse der Jahrestagung 2017 der Deutschen Gesellschaft f{\"u}r Limnologie (DGL) in Cottbus}, publisher = {Eigenverlag der DGL}, address = {Hardegsen}, isbn = {978-3-9818302-2-4}, pages = {113 -- 116}, language = {de} } @inproceedings{GassertNenovEnder, author = {Gassert, Egbert and Nenov, Rossen and Ender, Remo}, title = {Analyse der Vegetationsentwicklung am Beispiel eines Teiches in der Bergbaufolgelandschaft}, series = {Gew{\"a}sser im Wandel der Landschaft, 33. Jahrestagung der Deutschen Gesellschaft f{\"u}r Limnologie e.V. (DGL) und der Societas Internationalis Limnologiae (SIL), BTU Cottbus, 25.-29.09.2017, Abstractband}, booktitle = {Gew{\"a}sser im Wandel der Landschaft, 33. Jahrestagung der Deutschen Gesellschaft f{\"u}r Limnologie e.V. (DGL) und der Societas Internationalis Limnologiae (SIL), BTU Cottbus, 25.-29.09.2017, Abstractband}, pages = {S. 180}, abstract = {Methoden der Fernerkundung gewinnen in der {\"o}kologischen Forschung zunehmend an Bedeutung und sind in vielen Bereichen bereits fest etabliert. Am Beispiel der Vegetationssukzession an und in einem neu angelegten Teich soll das Potential der GIS-basierten Auswertung von Luftbildern aufgezeigt werden. Das k{\"u}nstlich angelegte Wassereinzugsgebiet „H{\"u}hnerwasser" im Bereich des Niederlausitzer Braunkohlentagebaus Welzow-S{\"u}d wird als Modell f{\"u}r die initiale Entwicklung eines {\"O}kosystems genutzt. F{\"u}r das Gebiet wurde im September 2005 mit Beendigung der Bauarbeiten der „Punkt Null" einer unbeeinflussten Sukzession definiert. Im am tiefsten gelegenen Bereich der 6 ha großen Fl{\"a}che wurde eine Senke geschaffen, in der sich in wenigen Monaten ein Teich mit einer Fl{\"a}che von ca. 3.800 m² und einem Volumen von rund 4.000 m³ entwickelte. Seine maximale Tiefe betrug 2,4 m. Die Gebietsentwicklung wird im Rahmen eines umfangreichen Monitorings u.a. mit regelm{\"a}ßigen Vegetationskartierungen erfasst. Etwa 20 \% des urspr{\"u}nglichen Seevolumens gingen innerhalb der ersten drei Jahre durch erosionsbedingte Sedimenteintr{\"a}ge aus dem Einzugsgebiet verloren. Durch den zunehmenden R{\"u}ckhalt der Mittel- und Grobsande im sich im Teichzulaufbereich ausbildenden Schwemmf{\"a}cher gelangten in der Folge {\"u}berwiegend feink{\"o}rniges Sediment aus Ton und Schluff (< 0,06 mm) in den Teich, die sich in den n{\"o}rdlichen und zentralen tieferen Bereichen ablagerten. Die fortschreitende Vegetationsentwicklung im Einzugsgebiet f{\"u}hrte zudem zu einer Abnahme der Erosionsprozesse und beg{\"u}nstigte auch die rasche Ausbreitung von emersen und submersen Makrophyten im Teich und um den Teich herum. Die Ufervegetation erwies sich als wirksame Sedimentfalle, die dem weiteren Eintrag mineralischer Stoffe entgegenwirkte. Zur Darstellung der Vegetationsentwicklung an und um den Teich herum wurden GIS-basierte Verfahren der Luftbildauswertung herangezogen. Zu Beginn der Vegetationsentwicklung dominierten am Gew{\"a}sserrand Schilf (Phragmites australis) und mit deutlich geringerem Deckungsgrad Breitbl{\"a}ttriger Rohrkolben (Typha latifolia). Die Makrophyten-Besiedlung im Teich setzte sich aus drei Potamogeton-Arten (P. pectinatus, P. lucens und P. natans), Myriophyllum spicatum und Chara globularis zusammen. Im Jahr 2009 war P. pectinatus die h{\"a}ufigste Makrophytenart im Teich, gefolgt von P. lucens und M. spicatum, P. natans und Chara globularis. 2015 dominierten dann P. lucens und P. natans, Ch. globularis. P. pectinatus und M. spicatum wurden nicht mehr gefunden. Der Schilfg{\"u}rtel erstreckte sich inzwischen auf nahezu alle Teichbereiche mit einer Wassertiefe von weniger als 1 m.}, language = {de} } @inproceedings{NenovVogtElmeretal., author = {Nenov, Rossen and Vogt, Silvio and Elmer, Michael and Schaaf, Wolfgang and Biemelt, Detlef}, title = {Monitoring installations at the Chicken Creek catchment}, series = {Structures and processes of the initial ecosystem development, 1st International Conference associated with 4th Meeting of Young Researchers in Earth Sciences (MYRES), 20-24 September 2010, Cottbus, Germany, proceedings}, booktitle = {Structures and processes of the initial ecosystem development, 1st International Conference associated with 4th Meeting of Young Researchers in Earth Sciences (MYRES), 20-24 September 2010, Cottbus, Germany, proceedings}, publisher = {BTU}, address = {Cottbus}, pages = {S. 84}, language = {en} } @inproceedings{SchneiderGerkeMaureretal., author = {Schneider, Anna and Gerke, Horst H. and Maurer, Thomas and Nenov, Rossen and Seifert, Stefan}, title = {Quantification of initial sediment redistribution in an artificially-created catchment using a time series of digital elevation models}, series = {European Geosciences Union General Assembly 2011, Vienna, Austria, 03 - 08 April 2011}, booktitle = {European Geosciences Union General Assembly 2011, Vienna, Austria, 03 - 08 April 2011}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @inproceedings{SchneiderGerkeMaureretal., author = {Schneider, Anna and Gerke, Horst H. and Maurer, Thomas and Nenov, Rossen and Raab, Thomas}, title = {Hydro-geomorphic differentiation of an artificial catchment during the initial phase of ecosystem development}, series = {AGU Fall Meeting 2011, San Francisco, Calif., 5-9 Dec. 2011}, booktitle = {AGU Fall Meeting 2011, San Francisco, Calif., 5-9 Dec. 2011}, pages = {H31A-1134}, language = {en} } @incollection{BiemeltSchaafNenov, author = {Biemelt, Detlef and Schaaf, Wolfgang and Nenov, Rossen}, title = {Water budget components}, series = {The artificial catchment Chicken Creek - initial ecosystem development 2005-2010}, booktitle = {The artificial catchment Chicken Creek - initial ecosystem development 2005-2010}, editor = {Elmer, Michael and Schaaf, Wolfgang and Biemelt, Detlef and Gerwin, Werner and H{\"u}ttl, Reinhard F.}, publisher = {FZLB}, address = {Cottbus}, pages = {33 -- 54}, language = {en} } @incollection{ElmerSchaafBiemeltetal., author = {Elmer, Michael and Schaaf, Wolfgang and Biemelt, Detlef and Nenov, Rossen and Gerwin, Werner}, title = {Introduction}, series = {The artificial catchment Chicken Creek - initial ecosystem development 2005-2010}, booktitle = {The artificial catchment Chicken Creek - initial ecosystem development 2005-2010}, editor = {Elmer, Michael and Schaaf, Wolfgang and Biemelt, Detlef and Gerwin, Werner and H{\"u}ttl, Reinhard F.}, publisher = {FZLB}, address = {Cottbus}, pages = {1 -- 10}, language = {de} } @incollection{BiemeltNenov, author = {Biemelt, Detlef and Nenov, Rossen}, title = {Meteorology}, series = {Initial development of the artificial catchment "Chicken Creek" : monitoring program and survey 2005-2008}, booktitle = {Initial development of the artificial catchment "Chicken Creek" : monitoring program and survey 2005-2008}, editor = {Schaaf, Wolfgang and Biemelt, Detlef and H{\"u}ttl, Reinhard F.}, publisher = {Univ. of Technology, Research Center Landscape Development and Mining Landscapes (FZLB)}, address = {Cottbus}, pages = {9 -- 20}, language = {en} } @misc{SchaafElmerFischeretal., author = {Schaaf, Wolfgang and Elmer, Michael and Fischer, Anton and Gerwin, Werner and Nenov, Rossen and Pretzsch, Hans and Zaplata, Markus Klemens}, title = {Feedbacks between vegetation, surface structures and hydrology during initial development of the artificial catchment 'Chicken Creek'}, series = {Procedia Environmental Sciences}, volume = {19}, journal = {Procedia Environmental Sciences}, issn = {1878-0296}, doi = {10.1016/j.proenv.2013.06.010}, pages = {86 -- 95}, abstract = {Our investigations at the artificial catchment ´Chicken Creek´ in Lusatia/Germany aim to disentangle and understand the feedback mechanisms and interrelationships of processes and their co-development with spatial and temporal structures and patterns by studying this initial, probably less complex ecosystem. Intensive measurements were carried out in the catchment with regard to the development of surface structures, hydrological patterns, and vegetation dynamics. During the first seven years, considerable changes within the catchment were observed. Both internal and external factors could be identified as driving forces for the formation of structures and patterns in the artificial catchment. Initial structures formed by the construction process and initial substrate characteristics were decisive for the distribution and flow of water. External factors like episodic events triggered erosion and dissection during this initial phase, promoted by the low vegetation cover and the unconsolidated sandy substrate. The transformation of the initial geo-system into areas with evolving terrestrial or aquatic characteristics and from a very episodic to a more permanent stream network and discharge, together with the observed vegetation dynamics increased site diversity and heterogeneity with respect to water and nutrient availability and transformation processes compared to the more homogenous conditions at point zero. The processes and feedback mechanisms in the initial development of a new landscape may deviate in rates, intensity and dominance from those known from mature ecosystems. It is therefore crucial to understand these early phases of ecosystem development and to disentangle the increasingly complex interactions between the evolving terrestrial and aquatic, biotic and abiotic compartments of the system. Artificially created catchments could be a suitable tool to study these initial developments at the landscape scale under known, designed and defined boundary conditions.}, language = {en} } @misc{ElmerGerwinSchaafetal., author = {Elmer, Michael and Gerwin, Werner and Schaaf, Wolfgang and Zaplata, Markus Klemens and Hohberg, Karin and Nenov, Rossen and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {Dynamics of initial ecosystem development at the artificial catchment Chicken Creek, Lusatia, Germany}, series = {Environmental Earth Sciences}, volume = {69}, journal = {Environmental Earth Sciences}, number = {2}, issn = {1866-6299}, pages = {491 -- 505}, language = {en} } @misc{SchaafElmerFischeretal., author = {Schaaf, Wolfgang and Elmer, Michael and Fischer, Anton and Gerwin, Werner and Nenov, Rossen and Pretzsch, Hans and Seifert, Stefan and Winter, Susanne and Zaplata, Markus Klemens}, title = {Monitoring the formation of structures and patterns during initial development of an artificial catchment}, series = {Environmental Monitoring and Assessment}, volume = {Vol. 185}, journal = {Environmental Monitoring and Assessment}, number = {7}, issn = {0167-6369}, doi = {10.1007/s10661-012-2998-x}, pages = {5965 -- 5986}, abstract = {The objective of this paper is to present observations, results from monitoring measurements, and preliminary conclusions about the development of patterns and structures during the first 5 years of development of an artificial catchment starting from point zero. We discuss the high relevance of initial system traits and external events for the system development and draw conclusions for further research. These investigations as part of a Collaborative Research Center, aim to disentangle and understand the feedback mechanisms and interrelationships of processes and their co-development with spatial and temporal structures and patterns by studying an initial, probably less complex ecosystem. Therefore, intensive measurements were carried out in the catchment with regard to the development of surface structures, hydrological patterns, vegetation dynamics, water chemistry, and element budgets. During the first 5 years, considerable changes within the catchment were observed. Both internal and external factors could be identified as driving forces for the formation of structures and patterns in the artificial catchment. Initial structures formed by the construction process and initial substrate characteristics were decisive for the distribution and flow of water. External factors like episodic events triggered erosion and dissection during this initial phase, promoted by the low vegetation cover, and the unconsolidated sandy substrate. The transformation of the initial geosystem into areas with evolving terrestrial or aquatic characteristics and from a very episodic to a more permanent stream network and discharge, together with the observed vegetation dynamics increased site diversity and heterogeneity with respect to water and nutrient availability and transformation processes compared with the more homogenous conditions at point zero. The processes and feedback mechanisms in the initial development of a new landscape may deviate in rates, intensity, and dominance from those known from mature ecosystems. It is therefore crucial to understand these early phases of ecosystem development and to disentangle the increasingly complex interactions between the evolving terrestrial and aquatic, biotic, and abiotic compartments of the system. Long-term monitoring of initial ecosystems may provide important data and parameters on processes and the crucial role of spatial and temporal structures and patterns to solve these problems. Artificially created catchments could be a suitable tool to study these initial developments at the landscape scale under known, designed, and defined boundary conditions.}, language = {en} } @inproceedings{SchaafElmerGerwinetal., author = {Schaaf, Wolfgang and Elmer, Michael and Gerwin, Werner and Fischer, Anton and Zaplata, Markus Klemens and Nenov, Rossen}, title = {Feedbacks between structures and processes during initial ecosystem development in an artificial catchment}, series = {European Geosciences Union, General Assembly 2013, Vienna, Austria, 07 - 12 April 2013}, booktitle = {European Geosciences Union, General Assembly 2013, Vienna, Austria, 07 - 12 April 2013}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {We studied the role of strutures and processes and their feedbacks during initial ecosystem development in the artificial catchment Chicken Creek. During the first seven years, considerable changes within the catchment were observed. Both internal and external factors could be identified as driving forces for the formation of structures and patterns in the artificial catchment. Initial structures formed by the construction process and initial substrate characteristics were decisive for the distribution and flow of water. External factors like episodic events triggered erosion and dissection during this initial phase, promoted by the low vegetation cover and the unconsolidated sandy substrate. The transformation of the initial geo-system into areas with evolving terrestrial or aquatic characteristics and from a very episodic to a more permanent stream network and discharge, together with the observed vegetation dynamics increased site diversity and heterogeneity with respect to water and nutrient availability and transformation processes compared to the more homogenous conditions at point zero. The processes and feedback mechanisms in the initial development of a new landscape may deviate in rates, intensity and dominance from those known from mature ecosystems. It is therefore crucial to understand these early phases of ecosystem development and to disentangle the increasingly complex interactions between the evolving terrestrial and aquatic, biotic and abiotic compartments of the system. Artificially created catchments could be a suitable tool to study these initial developments at the landscape scale under known, designed and defined boundary conditions.}, language = {en} } @misc{SeiffertNenovMaureretal., author = {Seiffert, Thomas and Nenov, Rossen and Maurer, Thomas and Gerwin, Werner and Veste, Maik and Raab, Thomas}, title = {Microdrone-based photogrammetry for water catchment monitoring}, series = {Dimensions of ecology - from global change to molecular ecology, (Gf{\"O}) 39th annual conference, University of Bayreuth, 14th - 18th September 2009}, journal = {Dimensions of ecology - from global change to molecular ecology, (Gf{\"O}) 39th annual conference, University of Bayreuth, 14th - 18th September 2009}, editor = {Holzheu, Stefan and Thies, B.}, publisher = {Bayreuther Zentrum f{\"u}r {\"O}kologie und Umweltforschung (BayCEER) Selbstverlag}, address = {Bayreuth}, pages = {S. 129}, language = {en} }