TY - CHAP A1 - Rolland, Wolfgang A1 - Gerke, Horst H. A1 - Biemelt, Detlef A1 - Schaaf, Wolfgang A1 - Kügler, R. A1 - Kügler, Marcus T1 - Zusammenschau Transportprozesse Y1 - 2000 ER - TY - GEN A1 - Schaaf, Wolfgang A1 - Zech, Wolfgang T1 - Düngung mit gebranntem Magnesit und Magnesiumhydroxid zur Standortmelioration in einem stark geschädigten Fichtenökosystem Y1 - 1993 UR - https://onlinelibrary.wiley.com/doi/abs/10.1002/jpln.19931560413 ER - TY - GEN A1 - Schaaf, Wolfgang A1 - Zech, Wolfgang T1 - Element turnover in a heavily damaged Norway spruce ecosystem influenced by N deposition Y1 - 1993 UR - https://link.springer.com/article/10.1007/BF00029098 SP - 277 EP - 285 ER - TY - CHAP A1 - Schaaf, Wolfgang A1 - Zech, Wolfgang T1 - Effects of calcined magnesite, magnesium hydroxide and "Geosan" on soil properties in declining Norway spruce stands (NE Bavaria) Y1 - 1991 UR - https://link.springer.com/content/pdf/10.1007%2FBF02385237.pdf ER - TY - CHAP A1 - Kaupenjohann, Martin A1 - Schaaf, Wolfgang A1 - Zech, Wolfgang ED - Teller, Anne T1 - Decline of Norway spruce in NE-Bavaria, FRG T2 - Responses of forest ecosystems to environmental changes, proceedings of the First European Symposium on Terrestrial Ecosystems: Forests and Woodlands, held at Florence, Italy, 20 - 24 May 1991 Y1 - 1992 SN - 1-85166-878-0 SP - 586 EP - 587 PB - Elsevier CY - London ER - TY - GEN A1 - Fischer, Thomas A1 - Veste, Maik A1 - Schaaf, Wolfgang A1 - Dümig, Alexander A1 - Kögel-Knabner, Ingrid A1 - Wiehe, Wolfgang A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Initial pedogenesis in a topsoil crust 3 years after construction of an artificial water catchment in Brandenburg, NE Germany T2 - Biogeochemistry N2 - Cyanobacteria and green algae present in biological soil crusts are able to colonize mineral substrates even under extreme environmental conditions. As pioneer organisms, they play a key role during the first phases of habitat colonization. A characteristic crust was sampled 3 years after installation of the artificial water catchment “Chicken creek”, thus representing an early successional stage of ecosystem development. Mean annual rainfall and temperature were 559 mm and 9.3°C, respectively. We combined scanning electron microscopy (SEM/EDX) and infrared (FTIR) microscopy to study the contact zone of algal and cyanobacterial mucilage with soil minerals in an undisturbed biological soil crust and in the subjacent sandy substrate. The crust was characterized by an approximately 50 μm thick surface layer, where microorganisms resided and where mineral deposition was trapped, and by an approximately 2.5 mm thick lower crust where mineral particles were stabilized by organo-mineral structures. SEM/EDX microscopy was used to determine the spatial distribution of elements, organic compounds and minerals were identified using FTIR microscopy and X-ray diffraction (XRD). The concentration of organic carbon in the crust was about twice as much as in the parent material. Depletion of Fe, Al and Mn in the lower crust and in the subjacent 5 mm compared to the geological substrate was observed. This could be interpreted as the initial phase of podzolization. Existence of bridging structures between mineral particles of the lower crust, containing phyllosilicates, Fe compounds and organic matter (OM), may indicate the formation of organo-mineral associations. pH decreased from 8.1 in the original substrate to 5.1 on the crust surface 3 years after construction, pointing to rapid weathering of carbonates. Weathering of silicates could not be detected. Y1 - 2010 U6 - https://doi.org/10.1007/s10533-010-9464-z SN - 1573-515X VL - 101 IS - 1-3 SP - 165 EP - 176 ER - TY - CHAP A1 - Biemelt, Detlef A1 - Schaaf, Wolfgang A1 - Knoche, Dirk T1 - Stoff- und Wasserhaushalt von Kippenstandorten im Lausitzer Braunkohlerevier T2 - Vortragsband des 4. GBL-Kolloquiums vom 26. - 28. November 1997 in Cottbus, Ergebnisse und Empfehlungen Y1 - 1998 SN - 3-510-95822-5 SP - 122 EP - 125 PB - Schweizerbart CY - Stuttgart ER - TY - CHAP A1 - Pohle, Ina A1 - Hu, Yuzhu A1 - Schaaf, Wolfgang A1 - Gerwin, Werner A1 - Maurer, Thomas A1 - Hinz, Christoph T1 - Hydrogeochemische Signaturen der Einzugsgebietsentwicklung – die Rolle der Calcium- und Sulfatfreisetzung im Hühnerwassereinzugsgebiet T2 - Abstract-Sammlung zu Posterbeiträgen, eingereicht zum Tag der Hydrologie in Trier 2017, 23. 03. – 24. 03. 2017 Y1 - 2017 UR - https://www.uni-trier.de/fileadmin/fb6/prof/PHY/PDF-Dateien/TdH2017_4Abstracts_Poster.pdf SP - S. 5 ER - TY - CHAP A1 - Hinz, Christoph A1 - Schaaf, Wolfgang A1 - Gerwin, Werner A1 - Pohle, Ina T1 - Entwicklung eines transienten hydrologischen Systems: Zustandsänderungen des künstlichen Einzugsgebiets Hühnerwasser T2 - Abstract-Sammlung zu Posterbeiträgen, eingereicht zum Tag der Hydrologie in Trier 2017, 23. 03. – 24. 03. 2017 Y1 - 2017 UR - https://www.uni-trier.de/fileadmin/fb6/prof/PHY/PDF-Dateien/TdH2017_4Abstracts_Poster.pdf SP - S. 1 ER - TY - GEN A1 - Gerwin, Werner A1 - Schaaf, Wolfgang A1 - Biemelt, Detlef A1 - Winter, S. A1 - Fischer, A. A1 - Veste, Maik A1 - Hüttl, Reinhard F. T1 - Overview and first results of ecological monitoring at the artificial watershed Chicken Creek (Germany) T2 - Physics and Chemistry of the Earth Y1 - 2011 SN - 1873-5193 VL - 36 IS - 1-4 SP - 61 EP - 73 ER -