SWAT-G, a version of SWAT99.2 modified for application to low mountain range catchments

This study investigates potential effects of wetland restoration on storm flow dynamics in a mainly waterlogged low mountain range catchment located in SW-Germany. Here, wetland drainage networks are being sealed, aiming to achieve rising soil water tables and reestablished peat vegetation. With the help of hydrograph separation, multiple linear regression (MLR) and covariance analysis (ANCOVA), runoff-governing storm properties and sealing influences were analyzed. Results show, that not only natural storm parameters (precipitation sum, rainfall intensity, antecedent precipitation and temperature) exert influence on storm-runoff, but sealings also led to significantly altered processes: On the one hand, storm-runoff coefficients increased in sealed catchments, resulting most likely from more saturated soils, providing a smaller infiltration capacity. This is a desired effect of rewetting but coincidently a downside regarding storm flood prevention. On the other hand, lag times, meaning the timespan between rainfall occurrence and the hydrograph starting to rise, were noticeably prolonged. This effect potentially can be beneficial when it comes to storm flood prevention. Overall, statistical models including sealings showed more satisfactory results describing stormflow variance compared to models without sealings. Therefore, sealings do exert – statistically proven – an effect on storm runoff. The heterogeneity of the results, representing a dense gauge network spread over an investigation area of roughly 7.5 km² shows, that a high-resolution sampling, both spatially and temporally, is vital. That is since runoff processes in waterlogged low mountain range catchments are still poorly understood.

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Comparing model sensitivities of different landscapes using the ecohydrological SWAT model

Advances in Geosciences ◽

10.5194/adgeo-21-91-2009 ◽

2009 ◽

Vol 21 ◽

pp. 91-98 ◽

Cited By ~ 28

Author(s):

B. Schmalz ◽

N. Fohrer

Keyword(s):

Water Discharge ◽

Swat Model ◽

Influential Factors ◽

Shallow Aquifer ◽

Sensitivity Analyses ◽

Soil Parameters ◽

Mountain Range ◽

Landscape Features ◽

Low Mountain Range ◽

Sensitive Parameters

Abstract. Lowland areas are characterised by specific properties, such as flat topography, low hydraulic gradients, shallow groundwater, and high potential for water retention in peatland and lakes. The investigated mesoscale catchments Stör, Treene and Kielstau are located in Northern Germany within lowland areas. Covering areas from 50 to 517 km2, these rural catchments have sandy, loamy and peaty soils and are drained in high fraction by open ditches and tile drainage. Using the river basin model SWAT, sensitivity analyses were carried out through an automatic routine that is based on the Latin-Hypercube (LH) and a One-factor-At-a-Time (OAT) sampling. The objective of this study is to investigate how specific landscape features influence the model behaviour. There are two research questions: a) What are the most sensitive parameters in the studied lowland catchments? b) What differences occur between these landscape features in comparison to mountainous or low mountain range catchments? The results show that groundwater and soil parameters were found to be most sensitive in the studied lowland catchments and they turned out to be the most influential factors on simulated water discharge. The most sensitive parameter was the threshold water level in shallow aquifer for baseflow (GWQMN). In contrast, many studies of mountainous or low mountain range catchments show that the most sensitive parameters were the surface runoff parameters.

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Interactive comment on “Hydrodynamic simulation of the effects of in-channel large woody debris on the flood hydrographs of a low mountain range creek, Ore Mountains, Germany” by Daniel Rasche et al.

10.5194/hess-2019-35-rc2 ◽

2019 ◽

Author(s):

Anonymous

Keyword(s):

Woody Debris ◽

Large Woody Debris ◽

Mountain Range ◽

Hydrodynamic Simulation ◽

Low Mountain Range

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Cosmo-SkyMed backscatter intensity and interferometric coherence signatures over Germany's low mountain range forested areas

2012 IEEE International Geoscience and Remote Sensing Symposium ◽

10.1109/igarss.2012.6352357 ◽

2012 ◽

Cited By ~ 2

Author(s):

Nicolas Ackermann ◽

Christian Thiel ◽

Maurice Borgeaud ◽

Christiane Schmullius

Keyword(s):

Mountain Range ◽

Backscatter Intensity ◽

Low Mountain Range ◽

Forested Areas

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Spatial and temporal variability of bat foraging in a western European low mountain range forest

Mammalia ◽

10.1515/mamm.2005.003 ◽

2005 ◽

Vol 69 (1) ◽

Cited By ~ 7

Author(s):

Jürgen Kusch ◽

Sylvia Idelberger

Keyword(s):

Temporal Variability ◽

Spatial And Temporal Variability ◽

Mountain Range ◽

Low Mountain Range ◽

Western European

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Substantial Rise in the Prevalence of Lyme Borreliosis Spirochetes in a Region of Western Germany over a 10-Year Period

Applied and Environmental Microbiology ◽

10.1128/aem.70.3.1576-1582.2004 ◽

2004 ◽

Vol 70 (3) ◽

pp. 1576-1582 ◽

Cited By ~ 26

Author(s):

Helge Kampen ◽

Diana C. RÃ¯Â¿Â½tzel ◽

Klaus Kurtenbach ◽

Walter A. Maier ◽

Hanns M. Seitz

Keyword(s):

Wildlife Management ◽

Sensu Stricto ◽

Immunofluorescence Assay ◽

Infection Prevalence ◽

Mountain Range ◽

Transmission Cycle ◽

Low Mountain Range ◽

Western Germany ◽

The Mean ◽

Substantial Rise

ABSTRACT More than a decade after a study on the transmission cycle of Borrelia burgdorferi sensu lato in the Siebengebirge, a nature reserve near Bonn, Germany, questing nymphal and adult Ixodes ricinus ticks were collected again in three selected areas of the same low mountain range and examined for infection with B. burgdorferi sensu lato. Between May and October 2001, a total of 1,754 ticks were collected by blanket dragging; 374 ticks were analyzed for B. burgdorferi sensu lato by both an immunofluorescence assay (IFA) and at least two different PCR tests, whereas 171 ticks were analyzed by PCR only. By combining all assays, an average of 14% of the ticks tested positive for B. burgdorferi sensu lato, 5.5, 15.8, and 21.8% in the three collection areas. Of the nymphs and adults examined, 12.9 and 21.1%, respectively, were found to be spirochete infected. A lower total infection prevalence was obtained by IFA (14.4%) than by a nested PCR approach (16.5%), but both were higher than that obtained by a simple PCR approach (11.9%). Compared with data collected over a decade ago, the mean infection prevalence of B. burgdorferi sensu lato in the ticks was significantly higher for all three biotopes, whereas a similar pattern of habitat-specific infection prevalence was observed. Genotyping of B. burgdorferi sensu lato revealed high relative prevalences of B. valaisiana (identified in 43.1% of infected ticks) and B. garinii (32.3%), whereas B. afzelii (12.3%) and B. burgdorferi sensu stricto (1.5%) were relatively rare. We conclude that B. burgdorferi sensu lato infection has increased in this region over the last 15 years due to presently unknown changes in ecological conditions, perhaps related to climate change or wildlife management.

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