Two decades of system-based hygienic–microbiological research in Swist river catchment (Germany)     

Christiane Schreiber  Andrea Rechenburg  Christoph Koch  Ekkehard Christoffels  Thomas Claßen  Marlene Willkomm  Franz Michael Mertens  Andrea Brunsch  Susanne Herbst  Esther Rind  Thomas Kistemann 《Environmental Earth Sciences》2016,75(21):1393

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Relationship between irrigation water demand and yield of selected crops in Germany between 1902 and 2010: a modeling study     

Katrin Drastig  Judy Libra  Simone Kraatz  Hagen Koch 《Environmental Earth Sciences》2016,75(22):1427

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Sulfide intrusion in the tropical seagrasses Thalassia testudinum and Syringodium filiforme     

Marianne Holmer  Ole Pedersen  Dorte Krause-Jensen  Birgit Olesen  Malene Hedegrd Petersen  Stephanie Schopmeyer  Marguerite Koch  Bente Aa. Lomstein  Henning S. Jensen 《Estuarine, Coastal and Shelf Science》2009,85(2):319-326

Sulfur and oxygen dynamics in the seagrasses Thalassia testudinum and Syringodium filiforme and their sediments were studied in the US Virgin Islands (USVI) in order to explore sulfide intrusion into tropical seagrasses. Four study sites were selected based on the iron concentration in sediments and on proximity to anthropogenic nutrient sources. Meadow characteristics (shoot density, above- and below-ground biomass, nutrient content) were sampled along with sediment biogeochemistry. Sulfide intrusion was high in T. testudinum, as up to 96% of total sulfur in the plant was derived from sediment-derived sulfides. The sulfide intrusion was negatively correlated to the turnover of sulfides in the sediments regulated by both plant parameters and sediment sulfur pools. Sediment iron content played an indirect role by affecting sulfide turnover rates. Leaf production was negatively correlated with sulfide intrusion suggesting that active growth reduced sulfide intrusion. Sulfide intrusion was lower in S. filiforme (up to 44%) compared to T. testudinum consistent with a higher internal nighttime oxygen concentrations found for S. filiforme. When S. filiforme can take advantage of its ability to maintain high internal oxygen concentrations, as was the case on the USVI, it could increase its success in colonizing unvegetated disturbed sediments with potentially high sulfide concentrations.  相似文献   

Geoacoustic Inversions of Horizontal and Vertical Line Array Acoustic Data From a Surface Ship Source of Opportunity     

Stotts  S. A Koch  R. A. Joshi  S. M. Nguyen  V. T. Ferreri  V. W. Knobles  D. P. 《Oceanic Engineering, IEEE Journal of》2010,35(1):79-102

The application of an inversion methodology produces the first demonstration of a simultaneous solution for geoacoustic and source track parameters from acoustic data collected in a shallow-water, sandy sediment environment. Inversion solutions from data collected in the 2006 Shallow Water Experiment (SW06) are extracted from noise measurements of a surface ship source on an L-array. The methodology includes a screening algorithm to determine a set of frequencies for the inversion data. In addition, the methodology assesses the accuracy of the inversion solution and incorporates an estimation of parameter value uncertainties. The solution from the inversion of the horizontal component of the L-array data from the surface ship source before its closest point of approach (CPA) is used to construct modeled propagation loss for comparison with observed received level (RL) structure as the source departs from CPA. Inversion of the data from a single element in the vertical component of the L-array produces a solution that agrees with the solution obtained from the inversion of horizontal subaperture data. Also, modeled transmission loss (TL) structure obtained from the single-element inversion solution reproduces the depth dependence of the RL structure observed at other elements of the vertical component of the L-array.   相似文献   

Book reviews     

F. Alejandro Nava  Manfred Koch  Andrzej Hanyga  Jacek Leliwa-Kopystyński  Frazer Tabeart  Sueo Veno  Andrzej W. Wernik  Yu. N. Korenkov  Kenji Satake  Carlos Lozano  Aysel Karafistan  Ian N. James  Anthony Dore  Jacek Wałczewski  Krzysztof Haman  Brian F. Farrell 《Pure and Applied Geophysics》1994,143(4):753-780

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Hrsg.: O. HUTZINGER: The Handbook of Environmental Chemistry,Volume 3, Part C: Anthropogenic Compounds. Berlin — Heidelberg — New York — Tokyo,Springer Verlag, 1984, 220 S., 31 Abb., DM 138,—     

R. Koch 《洁净——土壤、空气、水》1985,13(1):84-84

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Ed.: Robert L. GROB: Chromatographic Analysis of the Environment. 2. überarbeitete und erweiterte Auflage. New York — Basel,Marcel Dekker,INC., 1983, 724 S., 2113 Lit     

R. Koch 《洁净——土壤、空气、水》1985,13(1):132-133

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W. SALOMONS and U. FÖRSTNER: Metals in the Hydrocycle. Berlin — Heidelberg — New York — Tokyo: Springer Verlag, 1984, 349 S., 149 Abb., DM 98.—     

R. Koch 《洁净——土壤、空气、水》1985,13(2):267-267

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Hrsg.: B. BÖHNKE: Automatisierte Meßwertsammlung und Datenverarbeitung in Chemischen und Biologischen Laboratorien bei der Untersuchung von Wasser und Abwasser. Gewässerschutz — Wasser — Abwasser. Band 68, 1984. Gesellschaft zur Förderung d. Siedlungswasserwirtschaft an d. RWTH Aachen, 1984, 259 S., DM 35.—     

R. Koch 《洁净——土壤、空气、水》1985,13(3):318-318

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R. E. KAISER und A. RACKSTRAW: Computer Chromatography. Volume 1. Heidelberg,Dr. Alfred Hüthig Verlag, 1983. 171 S., 43 Abb., 11 Tab., DM 54.—     

R. Koch 《洁净——土壤、空气、水》1985,13(5):566-566

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