scholarly journals Development of soil water regime under spruce stands

2017 ◽  
Vol 44 (1) ◽  
pp. 46-53 ◽  
Author(s):  
Ladislav Tužinský ◽  
Eduard Bublinec ◽  
Marek Tužinský
Keyword(s):  
Soil Moisture ◽  
Soil Water ◽  
Norway Spruce ◽  
Water Regime ◽  
Winter Season ◽  
Atmospheric Precipitation ◽  
Health State ◽  
Growing Seasons ◽  
Spruce Stands ◽  
Moisture State

AbstractThe aim of this paper is to analyse the water regime of soils under spruce ecosystems in relation to long-lasting humid and drought periods in the growing seasons 1991-2013. The dominant interval humidity in observing growing seasons is semiuvidic interval with soil moisture between hydro-limits maximal capillary capacity (MCC) and point of diminished availability (PDA). Gravitationally seepage concentrated from accumulated winter season, water from melting snow and existing atmospheric precipitation occurs in the soil only at the beginning of the growing season. The supplies of soil water are significantly decreasing in the warm climate and precipitant deficient days. The greatest danger from drought threatens Norway spruce during the summer months and it depends on the duration of dry days, water supply at the beginning of the dry days, air temperature and the intensity of evapotranspiration. In the surface layers of the soil, with the maximum occurrence of active roots, the water in semiarid interval area between hydro-limits PDA and wilting point (WP) decreases during the summer months. In the culminating phase occurs the drying to moisture state with capillary stationary and the insufficient supply of available water for the plants. Physiological weakening of Norway spruce caused by set of outlay components of the water balance is partially reduced by delivering of water by capillary action from deeper horizons. In extremely dry periods, soil moisture is decreasing also throughout the soil profile (0-100 cm) into the bottom third of the variation margin hydro-limits MCC-PDA in the category of capillary less moving and for plants of low supply of usable water (60-90 mm). The issue of deteriorated health state of spruce ecosystems is considered to be actual. Changes and developments of hydropedological conditions which interfere the mountain forests represent the increasing danger of the drought for the spruce.

scholarly journals Interception and soil water relation in Norway spruce stands of different age during the contrasting vegetation seasons of 2017 and 2018

2019 ◽  
Vol 65 (No. 2) ◽  
pp. 51-60 ◽  
Author(s):  
Vít Šrámek ◽  
Kateřina Neudertová Hellebrandová ◽  
Věra Fadrhonsová
Keyword(s):  
Soil Moisture ◽  
Water Potential ◽  
Soil Water ◽  
Norway Spruce ◽  
Soil Water Potential ◽  
Soil Horizon ◽  
Stand Age ◽  
Substantial Part ◽  
Vegetation Season ◽  
Spruce Stands

Interception, soil moisture and soil water potential were observed in four Norway spruce stands of different age in two subsequent vegetation seasons 2017 and 2018. Vegetation season 2018 can be characterized as being abnormally hot and dry with only 66% of precipitation in comparison with normal conditions. The interception of spruce increased with the stand age and its dimensions, ranging between 16 and 48% in 2017 and in the majority of stands even increasing in 2018. The soil moisture significantly decreased during the vegetation season 2018, with soil water potential close to the permanent wilting point (–1.5 MPa) for a substantial part of the monitored period. Differences between individual stands were observed in terms of the soil water potential (SWP) development which does not follow the interception patterns suggesting that the stand transpiration is a driving factor responsible for the soil water budget. In all stands, with the exception of the oldest one, the SWP of the upper soil horizon was less than 1.5 MPa for more than 80 days. In such extreme conditions the drought would negatively influence any Norway spruce stand regardless of its age or structure.

scholarly journals Regime and dynamics of soil moisture in forest ecosystems of Záhorská lowland

2012 ◽  
Vol 52 (No. 3) ◽  
pp. 108-117
Author(s):  
L. Tužinský
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Forest Ecosystems ◽  
Soil Moisture Content ◽  
Atmospheric Precipitation ◽  
Sandy Soils ◽  
Growing Seasons ◽  
The Town ◽  
Water Holding ◽  
Wilting Point

The paper describes the regime and dynamics of the soil moisture content of sandy soils in Záhorská lowland during different growing seasons. Research plots are situated near Kamenný mlyn, approximately 3 km from Plavecký Štvrtok and 8 km southward from the town of Malacky. Changes in the soil moisture content are described by soil moisture constants (MCC, PDA, WP) and its relation to atmospheric precipitation and to the character of undergrowth is shown. The low water-holding capacity of sandy soils and their high drainage together with dense root system do not allow the sufficient saturation of soil during the growing season. The low wilting point value (2%) leads to the consumption of all available water in the soil. The most frequent is the semiarid interval of soil moisture (PDA –WP) with reduced availability of water to plants (> pF 3.1). The arid interval (< WP) occurrence on hot summer days results in a decrease in transpiration and assimilation intensity of plants, their physiological weakening and premature fall of assimilation organs. 

scholarly journals Moisture conditions of the soil in spruce ecosystem in Oravská Polhora-Borsučie in growing seasons of 2012 and 2013

Beskydy ◽  
2015 ◽  
Vol 8 (1) ◽  
pp. 27-33
Author(s):  
Ladislav Tužinský ◽  
Marek Tužinský ◽  
Juraj Gregor
Keyword(s):  
Surface Layer ◽  
Soil Moisture ◽  
Soil Water ◽  
Capillary Water ◽  
Soil Water Regime ◽  
Growing Seasons ◽  
Variation Range ◽  
Moisture Conditions ◽  
Short Time ◽  
Upper Third

The paper presents the research results of soil water regime under the spruce stand in the Upper Orava, in Oravská Polhora - Borsučie in the growing seasons of 2012 and 2013. There are characterized different ranges of soil moisture, soil water categories and its accessibility for plants, particularly for the surface layer from 20 cm to 100 cm deep physiological soil profile. Dominant interval of moisture during the growing season is the semiuvidic interval with the soil moisture between hydrolimits MCC and PDA. Amount of water presents mostly capillary less moving water, in the surface layer of soil sufficient, for short time insufficient supply of usable water. The amount of water decreseases for a short time after dry days. Semiaridic interval with the soil moisture between hydrolimits PDA and WP, up to the upper third of the variation range means that the vegetation has available stationary capillary water in the surface layer. In prolonged dry season such humidity condition can be one of the main causes of physiological weakening of spruce.

Soil tillage systems to reduce the harmful effect of extreme weather and hydrological situations

Biologia ◽  
2009 ◽  
Vol 64 (3) ◽  
Author(s):  
Csilla Farkas ◽  
Márta Birkás ◽  
György Várallyay
Keyword(s):  
Soil Moisture ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Soil Structure ◽  
Water Regime ◽  
Harmful Effect ◽  
Soil Tillage ◽  
Catch Crop ◽  
Undisturbed Soil

AbstractSoil as the largest potential natural water reservoir in the Carpathian Basin has increasing importance under conditions of predicted climate change resulting in increase of probability of extreme hydrological events. Soil management changes soil structure and has a major effect on soil water, heat and nutrition regimes. In this study the effect of four tillage treatments in combination with catch crop management was studied on soil hydraulic properties and water regime under semi-arid conditions. Investigations were carried out in a long-term soil tillage experiment established on Calcic Chernozem soil in Hungary. Tillage variants comprised mouldboard ploughing, disking, loosening combined with disking and direct drilling. The crop sequence between September 2003 and September 2004 comprised maize (main crop), rye (catch crop) and pea (forage). In May 2004, disturbed samples and undisturbed soil cores were collected from each tillage treatment/catch crop combination. The main soil physical and hydrophysical properties were determined in laboratory. In each treatment, capacitive soil moisture probes were installed up to 80 cm depth to ensure continuous measurement of soil water content. Total soil water amounts of chosen soil layers and soil water content dynamics as a function of depth were evaluated for selected periods in order to quantify the effect of the studied management systems on soil water regime. The main conclusion from the experiment is that under such (or similar) ecological conditions, the uniform, „over-standardized“ adaptation of tillage methods for soil moisture conservation is rather risky, their application needs special care and the future is for site-specific precision technologies. These are, in combination with catch crop application can be efficient measures of environmental protection and soil structure and water conservation.

КАПЕЛЬНОЕ ОРОШЕНИЕ РЕПЧАТОГО ЛУКА: ИТОГИ 2019 г.

2020 ◽  
pp. 5
Author(s):  
V.V. Vybornov
Keyword(s):  
Soil Moisture ◽  
Soil Water ◽  
Mineral Nutrition ◽  
Water Regime ◽  
Field Experience ◽  
Factor B ◽  
Nutrition Management ◽  
Volgograd Region ◽  
The World ◽  
Factor C

Представлены данные по площадям посева репчатого лука в мире, России и Волгоградской области. Наибольшие площади посева лука в России отмечены в Волгоградской области - 6,48 тыс. га. Цель исследований -повышение эффективности управления водным и минеральным питанием репчатого лука за счет обоснования расчетного слоя увлажнения почвы и агротехнических приемов возделывания на светло-каштановых почвах для получения 110 т/га товарной продукции. Полевой опыт включает следующие варианты: водный режим почвы (фактор А), режим минерального питания (фактор В), перспективные гибриды лука (фактор С). Исследования проводятся на посевах репчатого лука ВалероF1 МанасF1 ПандероF1 УниверсоF1 БлустерF1 СедонаF1.Data on the areas of onion sowing in the world, Russia and the Volgograd region are presented. The largest areas of onion sowing in Russia were recorded in the Volgograd region of 6.48 thousand ha. The aim of the research is to increase the efficiency of water and mineral nutrition management of onions by substantiating the calculated soil moisture layer and agrotechnical methods of cultivation on light chestnut soils to obtain 110 t / ha of commercial products. Field experience includes the following options: soil water regime (factor A), mineral nutrition regime (factor B), promising onion hybrids (factor C). Research is conducted on onions onion Valero F1 Manas F1 Pandero F1 Universo F1 Bluster F1 Sedona F1.

Modelling impacts of different climate change scenarios on soil water regime of a Mollisol

2005 ◽  
Vol 33 (1) ◽  
pp. 185-188 ◽  
Author(s):  
Csilla Farkas ◽  
Roger Randriamampianina ◽  
Juraj Majerčak
Keyword(s):  
Climate Change ◽  
Soil Water ◽  
Water Regime ◽  
Climate Change Scenarios ◽  
Soil Water Regime

scholarly journals Growth Responses of Boreal Scots Pine, Norway Spruce and Silver Birch Seedlings to Simulated Climate Warming over Three Growing Seasons in a Controlled Field Experiment

Forests ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 943
Author(s):  
Katri Nissinen ◽  
Virpi Virjamo ◽  
Antti Kilpeläinen ◽  
Veli-Pekka Ikonen ◽  
Laura Pikkarainen ◽  
...  
Keyword(s):  
Norway Spruce ◽  
Scots Pine ◽  
Root Biomass ◽  
Growing Season ◽  
Silver Birch ◽  
Shoot Biomass ◽  
Growth Responses ◽  
Growing Seasons ◽  
Simulated Climate ◽  
Shoot And Root Biomass

We studied the growth responses of boreal Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies L. Karst.) and silver birch (Betula pendula Roth) seedlings to simulated climate warming of an average of 1.3 °C over the growing season in a controlled field experiment in central Finland. We had six replicate plots for elevated and ambient temperature for each tree species. The warming treatment lasted for the conifers for three growing seasons and for the birch two growing seasons. We measured the height and diameter growth of all the seedlings weekly during the growing season. The shoot and root biomass and their ratios were measured annually in one-third of seedlings harvested from each plot in autumn. After two growing seasons, the height, diameter and shoot biomass were 45%, 19% and 41% larger in silver birch seedlings under the warming treatment, but the root biomass was clearly less affected. After three growing seasons, the height, diameter, shoot and root biomass were under a warming treatment 39, 47, 189 and 113% greater in Scots pine, but the root:shoot ratio 29% lower, respectively. The corresponding responses of Norway spruce to warming were clearly smaller (e.g., shoot biomass 46% higher under a warming treatment). As a comparison, the relative response of height growth in silver birch was after two growing seasons equal to that measured in Scots pine after three growing seasons. Based on our findings, especially silver birch seedlings, but also Scots pine seedlings benefitted from warming, which should be taken into account in forest regeneration in the future.

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