Role of vegetation in the variability of water regimes in the Šumava Mts forest

Biologia ◽  
2006 ◽  
Vol 61 (19) ◽  
Author(s):  
Josef Buchtele ◽  
Marie Buchtelová ◽  
Miroslav Tesař
Keyword(s):  
National Park ◽  
Forest Cover ◽  
Low Flow ◽  
Rainfall Runoff ◽  
The Czech Republic ◽  
Daily Time Series ◽  
Runoff Changes ◽  
Experimental Basin ◽  
Daily Time

AbstractDeviations between observed and simulated discharge in the basins along the borders of the Czech Republic with Austria and Germany provide outputs which enable to follow changes in runoff. The three basins range in area from 100 to 200 km2 and the experimental basin Liz with an area of 0.99 km2. The selected experimental catchments are situated in or close to the National Park of the Šumava Mts. This region is described also in Tesař et al. (2006). Results indicate that changes in runoff appear to be related to damages in forest cover caused by wind disasters and insects damages.Daily time series used for simulations are approximately 40 years long and 20 years in the experimental basin. Two different models of the rainfall — runoff process have been used for simulations and the outputs provide comparable results. The models are the conceptual model Sacramento (Burnash, 1995) and the model BROOK’90 (Federer, 1993). The second model distinguishes the details concerning evapotranspiration, including transpiration, rain and snow interception and snow and soil evaporation.The indicated runoff changes seem to be rather complex. After deforestation the volume of runoff generally increases and peak flows of floods are higher, but low flow in rainless periods show complicated courses.

scholarly journals Evaluation of the appearing changes in water regime at Ráztoka and Červík basins in the Beskydy Mts.

Beskydy ◽  
2013 ◽  
Vol 6 (2) ◽  
pp. 135-148
Author(s):  
M. Tesař ◽  
J. Buchtele
Keyword(s):  
Time Series ◽  
Water Regime ◽  
Significant Contribution ◽  
River Basins ◽  
Hydrological Models ◽  
Rainfall Runoff ◽  
Clear Cutting ◽  
Daily Time Series ◽  
Large Floods ◽  
Daily Time

The influence of vast salvage clear cutting in some hilly regions induced by acid rains is sometimes considered as a significant contribution to the disastrous character of the recent floods. Then the considerations having also partly emotional character, appeared, namely after large floods in the Morava and Odra Rivers in the July 1997 and in the Labe River basins in August 2002. The simulations of rainfall-runoff process for several experimental catchments have been carried out using daily time series up to 50 years long. The outputs of hydrological models SAC-SMA and BROOK´90 provide naturally the differences between observed and simulated discharge, which could show the tendencies in the runoff. They have been analysed and findings indicate the increases of runoff after deforestation. The differences between observed and simulated flows can be helpful also for the assessment of changes in evapotranspiration demands as the significant long-termed phenomenon.

scholarly journals Drought-induced non-stationarity in the rainfall-runoff relationship invalidates the role of control catchment at the Red Hill paired-catchment experimental site

2021 ◽  
Author(s):  
Yunfan Zhang ◽  
Lei Cheng ◽  
Lu Zhang ◽  
Shujing Qin ◽  
Liu Liu ◽  
...  
Keyword(s):  
Rainfall Runoff ◽  
Experimental Site ◽  
Total Runoff ◽  
Runoff Reduction ◽  
Prolonged Drought ◽  
Runoff Changes ◽  
Stationarity Test ◽  
Paired Catchment ◽  
Relationship Of

Abstract. The most widely used approaches for estimating impacts of vegetation changes on runoff are the paired-catchment method, the time-trend analysis method, and the sensitivity-based method. These three methods have yielded consistent results in many paired-catchment studies, except at the Red Hill experimental site in Australia. However, reasons for the inconsistency have not yet been identified. The objective of this study was to identify the reasons for the inconsistency amongst results using observations of two paired catchments from 1990 to 2015. Results from these three methods showed that afforestation accounted for 32.8 %, 93.5 %, and 76.1 % of total runoff changes, respectively. The inconsistency in results were still apparent even the longest available observation record was used. The rainfall-runoff relationship of the control catchment has been used only in the paired-catchment method. This relationship was confirmed to become non-stationary during the pre- and post-calibration periods due to a 10-year prolonged drought, leading to the inconsistency amongst results. By eliminating drought's effects on the rainfall-runoff relationship of the control catchment, afforestation’s contribution to runoff reduction was 73.4 % using the paired-catchment method, agreeing well the other two methods. This study not only revealed the reason for the inconsistent results that had long been observed at the famous experimental site, but also proved, using experimental observations, that prolonged drought can induce non-stationary rainfall-runoff relationship in catchment. It also demonstrated that the stationarity test is vital for correct use of historical time series and effective research on ecological hydrology in the case of frequent extreme climate.

Prague, the Victorious May of 1945

2020 ◽  
Vol 13 (4) ◽  
pp. 80-91
Author(s):  
S. V. Kudryashov
Keyword(s):  
Czech Republic ◽  
Controversial Issues ◽  
Political Struggle ◽  
Military Operation ◽  
The Czech Republic ◽  
German Army ◽  
Local Municipality ◽  
Local Residents ◽  
Group Center

The article deals with complex and controversial issues related to the uprising and liberation of Prague in May 1945. Interpretation of the events became acute and caused lively discussions in connection with the demolition of the monument to Marshal I. V. Konev on April 3, 2020 by the order of the local municipality. The Czech Republic is also discussing the idea of «perpetuating the role of other liberators» of the capital – soldiers of the ROA division, which for two days (May 6-7) provided assistance to the rebels. Using new documents from the Central archive of the Ministry of defense of the Russian Federation, the author draws a conclusion about the limited influence of the Vlasov units. They, indeed, brought confusion to the German ranks, but early in the morning of May 8, they themselves left Prague on a rapid march. After that, fighting and negotiations between the rebels and the German command continued. The article emphasizes that the main goal of the Soviet military operation from 6 to 11 May 1945 was the defeat of the German Army Group Center. The liberation of Prague was only part of a powerful offensive by three Soviet fronts. Heavy battles for Prague did not happen, but the entry of Soviet tanks into the Czech capital and the subsequent jubilation of local residents became a symbol of the end of the war in Europe. The author concludes that the demolition of monuments to Soviet soldiers and commanders is a manifestation of internal political struggle in the countries where it occurs, and the Czech Republic is only one of these examples.

(A review) Vegetation and biotopes of the National Park “Narochansky” with the Map of terrestrial vegetation (S. 1 : 60 000) and the Map of biotopes (S. 1 : 60 000)

2019 ◽  
pp. 68-72
Author(s):  
E. A. Volkova
Keyword(s):  
National Park ◽  
Forest Cover ◽  
Practical Importance ◽  
Vegetation Mapping ◽  
Small Scale ◽  
Terrestrial Vegetation ◽  
Economic Activities ◽  
National Academy Of Sciences ◽  
Experimental Botany ◽  
High Level

A monograph “Vegetation and biotopes of the “Narochansky” National Park was published in Minsk, Belarus in 2017, edited by A. V. Pugachevsky (Grummo et al., 2017). It includes the Map of terrestrial vegetation (S. 1 : 60 000) and the Map of biotopes (S. 1 : 60 000). Some small-scale maps such as the Map of changes in forest cover of the “Narochansky” National Park for the period 1985–2016, the Map of forest loss in the “Narochansky” National Park for the period 1985–2016 and a series of inventory and analytical maps on the basin of the Naroch Lake are given. This monograph can be considered as a small regional Atlas with detailed explanatory texts to the maps. It presents the experience on vegetation mapping accumulated in the Laboratory of Geobotany and Vegetation mapping of the Institute of Experimental Botany of the National Academy of Sciences of Belarus. Despite some critical comments, mainly concerning the biotope map, this publication of Belarusian geobotanists deserves an approval. They received the full answers to the questions posed: “What do we protect?” and “What is a current state of the vegetation of the National Park and the main trends of its dynamics? Cartographic design is made at a high level; the maps have both scientific and practical importance in the planning of environmental and economic activities.

Legislative tools in the Czech watershed management policy

1996 ◽  
Vol 33 (4-5) ◽  
pp. 39-44
Author(s):  
J. Holas ◽  
M. Konvicková
Keyword(s):  
Watershed Management ◽  
Large Scale ◽  
Agricultural Practices ◽  
Farming System ◽  
Management Policy ◽  
Running Water ◽  
The Czech Republic ◽  
Law System ◽  
Water Quality Regulations

Potential environmental impacts as a result of large-scale farming system in the Czech Republic have created a great deal of concern in recent years. This concern has led to several studies to identify the role of new regulations, directives and other legislative issues in the field of water pollution control. The set of legislative tools related to watershed management policy to promote better agricultural practices is shortly reviewed. The paper emphasises the running water law system amendment with respect to European community water quality regulations.

THE ROLE OF SEA-LEVEL RISE AND STORMS IN FORMATION AND RESILIENCE OF FLORIDA BAY ISLANDS, EVERGLADES NATIONAL PARK

2019 ◽  
Author(s):  
G. Lynn Wingard ◽  
◽  
Miriam C. Jones ◽  
Sarah E. Bergstresser ◽  
Bethany L. Stackhouse ◽  
...  
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
National Park ◽  
Florida Bay ◽  
Everglades National Park ◽  
Bay Islands

scholarly journals Forensic Investigation of Four Monitored Green Infrastructure Inlets

Water ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 1787
Author(s):  
Leena J. Shevade ◽  
Franco A. Montalto
Keyword(s):  
Measurement Uncertainty ◽  
Green Infrastructure ◽  
Stormwater Management ◽  
Catchment Area ◽  
Low Flow ◽  
Inflow Rate ◽  
Forensic Investigation ◽  
Flow Conditions ◽  
The Mean

Green infrastructure (GI) is viewed as a sustainable approach to stormwater management that is being rapidly implemented, outpacing the ability of researchers to compare the effectiveness of alternate design configurations. This paper investigated inflow data collected at four GI inlets. The performance of these four GI inlets, all of which were engineered with the same inlet lengths and shapes, was evaluated through field monitoring. A forensic interpretation of the observed inlet performance was conducted using conclusions regarding the role of inlet clogging and inflow rate as described in the previously published work. The mean inlet efficiency (meanPE), which represents the percentage of tributary area runoff that enters the inlet was 65% for the Nashville inlet, while at Happyland the NW inlet averaged 30%, the SW inlet 25%, and the SE inlet 10%, considering all recorded events during the monitoring periods. The analysis suggests that inlet clogging was the main reason for lower inlet efficiency at the SW and NW inlets, while for the SE inlet, performance was compromised by a reverse cross slope of the street. Spatial variability of rainfall, measurement uncertainty, uncertain tributary catchment area, and inlet depression characteristics are also correlated with inlet PE. The research suggests that placement of monitoring sensors should consider low flow conditions and a strategy to measure them. Additional research on the role of various maintenance protocols in inlet hydraulics is recommended.

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