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Wyszukujesz frazę "soil water balance" wg kryterium: Temat


Tytuł:
Detection of physical hazards in soil profiles using quantitative soil physical quality assessment in the Pannonian basin, Eastern Austria
Autorzy:
Weninger, T.
Kampiner, E.
Dostal, T.
Spiegel, A.
Strauss, P.
Powiązania:
https://bibliotekanauki.pl/articles/2082964.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
tillage intensity
soil compaction
soil water balance
soil management
Opis:
Reliable estimations of soil physical quality provide valuable information for the evaluation and advancement of agricultural soil management strategies. In the agriculturally highly productive Pannonian basin in Eastern Austria, little emphasis has been placed on the determination of soil physical quality and corresponding soil degradation risks. Nevertheless, ongoing climate change, especially prolonged drought periods and higher rainfall intensity, will raise the need for appropriate soil management strategies. Soil physical quality was therefore assessed in nine soil profiles in a long-term tillage experiment which has been in operation since 1988 in Eastern Austria. Soil samples from depths of between 2 and 37 cm and under three different tillage systems (conventional, reduced and minimal tillage) were analysed for various indicators of soil physical quality. The resulting classifications of soil physical quality in the different profiles were compared qualitatively and quantitatively together with an estimation concerning the representativeness of the soil physical quality indicators used. The outcomes showed severe soil compaction under all tillage treatments and slight improvements in soil physical quality marginally above the working depth for the different treatments. Additionally, conversion to conservation tillage led to less pronounced improvements in soil physical quality under Pannonian conditions than have been reported in more humid climates.
Źródło:
International Agrophysics; 2020, 34, 4; 463-471
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of climate change on soil water balance and agricultural production sustainability in Mediterranean part of Bosnia and Herzegovina
Autorzy:
Ljusa, M.
Custovic, H.
Hodzic, S.
Powiązania:
https://bibliotekanauki.pl/articles/971268.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
agriculture
adaptation to climate change
climate change
soil water balance
Opis:
The world agriculture uses about 70% of the world water resources in irrigation. The concern over the sustainability of water use as demand for agricultural, industrial, and domestic uses continues to increase. Conflicts between particular sectors result in tensions, which some- times lead to “water wars” in different parts of the world. It is the reason why many national and international organizations are putting the water quantity and quality questions on the top of the world’s open questions/problems. The main aim of this paper is to present soil water balance of the Mediterranean region of Bosnia and Herzegovina, prepared for a long-term time series for two locations (Trebinje and Mostar) annually and during the vegetation period. The mean long-term data has been used as a base for future predicted calculation. The predicted PET was based on an increase in air temperature by 2°C and predicted decrease in precipitation by 25%. With so pre- dicted calculated data of monthly PET and monthly precipitation the predicted soil water balance was done.
Źródło:
Polish Journal of Soil Science; 2020, 53, 1
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of climate change on soil water balance and agricultural production sustainability in Mediterranean part of Bosnia and Herzegovina
Autorzy:
Ljusa, Melisa
Custovic, Hamid
Hodzic, Sabina
Powiązania:
https://bibliotekanauki.pl/articles/2088225.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
agriculture
adaptation to climate change
climate change
soil water balance
Opis:
The world agriculture uses about 70% of the world water resources in irrigation. The concern over the sustainability of water use as demand for agricultural, industrial, and domestic uses continues to increase. Conflicts between particular sectors result in tensions, which sometimes lead to “water wars” in different parts of the world. It is the reason why many national and international organizations are putting the water quantity and quality questions on the top of the world’s open questions/problems. The main aim of this paper is to present soil water balance of the Mediterranean region of Bosnia and Herzegovina, prepared for a long-term time series for two locations (Trebinje and Mostar) annually and during the vegetation period. The mean long-term data has been used as a base for future predicted calculation. The predicted PET was based on an increase in air temperature by 2°C and predicted decrease in precipitation by 25%. With so predicted calculated data of monthly PET and monthly precipitation the predicted soil water balance was done.
Źródło:
Polish Journal of Soil Science; 2020, 53, 1; 125-135
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of soil structural parameters on hydraulic functions for soil-water balance modelling
Autorzy:
Wimmer, B.
Rampazzo, N.
Blum, W.E.H.
Powiązania:
https://bibliotekanauki.pl/articles/24879.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
chemical analysis
hydraulic conductivity
soil structure
measurement
tension infiltrometer
hydraulic property
permeameter
computer model
physical analysis
soil-water balance
Źródło:
International Agrophysics; 1997, 11, 1-2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of meteorological drought on crop water deficit and crop yield reduction in Polish agriculture
Wpływ suszy meteorologicznej na deficyt wody i zmniejszenie plonu roślin uprawnych w polskim rolnictwie
Autorzy:
Łabędzki, L.
Bąk, B.
Powiązania:
https://bibliotekanauki.pl/articles/293223.pdf
Data publikacji:
2017
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
crop drought index CDI
crop water deficit
drought
soil water balance
standardized precipitation index SPI
yield reduction
wskaźnik standaryzowanego opadu SPI
wskaźnik suszy rolniczej CDI
deficyt wody roślin uprawnych
susza
bilans wody w glebie
zmniejszenie plonu
Opis:
The study presents the quantification of the effect of meteorological drought on crop water deficit and crop yield reduction in different agro-climatic regions of Poland. The regression equations describing the relationship between the standardized precipitation index SPI (meteorological drought) and the crop drought index CDI (evapotranspiration reduction) were used in a first step. Then the FAO equation describing the relationship between CDI and yield reduction was used. Crop water deficit measured by CDI is spatially differentiated and depends on the intensity of meteorological drought and soil water availability. The greatest evapotranspiration reduction is found for late potato growing in the central-west Poland (30–60%). The smallest reduction of evapotranspiration was stated for winter rape (12–16%) in the same region on soils with small water retention and no reduction can be on soils with large water retention. A good correlation between estimated and observed yield reduction was found. Potential yield reduction of late potato can reach more than 50% in central Poland. Least yield reduction is for winter wheat and winter rape. The main advantage of the method used in the study is the combination of meteorological drought, soil water retention capacity, evapotranspiration, soil water balance and crop yield, and so help provide more accurate assessments.
W pracy zaprezentowano ilościową ocenę wpływu suszy meteorologicznej na deficyt wody i zmniejszenie plonu roślin uprawnych w różnych regionach agroklimatycznych Polski. W pierwszym etapie zastosowano równania regresji opisujące zależność między wskaźnikiem standaryzowanego opadu SPI (susza meteorologiczna) i wskaźnikiem suszy rolniczej CDI (ograniczenie ewapotranspiracji). Następnie zastosowano równanie opisujące zależność między CDI i zmniejszeniem plonu. Deficyt wody roślin uprawnych, którego miarą jest CDI, jest przestrzennie zróżnicowany i zależy od intensywności suszy meteorologicznej i dostępności wody w glebie. Ewapotranspiracja zmniejszyła się najbardziej w przypadku ziemniaka późnego w środkowo-zachodniej Polsce (30–60%), a najmniej w przypadku rzepaku ozimego (12–16%) w tym samym regionie na glebach o małej retencji wodnej, natomiast na glebach o dużej retencji wodnej ewapotranspiracja się nie zmniejszyła. Stwierdzono dobrą korelację między obliczonym i rzeczywistym zmniejszeniem plonu. W centralnej Polsce zmniejszenie plonu ziemniaka późnego może przekroczyć 50%. Plony najmniej się zmniejszyły w przypadku pszenicy ozimej i rzepaku ozimego. Główną zaletą metody zastosowanej w pracy jest skojarzenie suszy meteorologicznej, zdolności retencjonowania wody w glebie, ewapotranspiracji, bilansu wody w glebie oraz plonów i umożliwienie dzięki temu bardziej dokładnych i wiarygodnych ocen.
Źródło:
Journal of Water and Land Development; 2017, 34; 181-190
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Moisture content of peat-moorsh soils with special attention to periods of drought
Autorzy:
Oleszczuk, Ryszard
Jadczyszyn, Jan
Urbański, Janusz
Zając, Ewelina
Brandyk, Andrzej
Niedźwiecki, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/27314678.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
climatic water balance
moorsh
organic soil
soil moisture content
soil water potential
Opis:
The paper presents the course of variability of the moisture content of the top layers in shallow (45 cm) and medium-deep (90 cm) peat-moorsh soil profiles in the years 2015-2019 against the background of the same meteorological conditions and a similar level of the groundwater table. The relative precipitation index (RPI) classifies the years 2015 and 2016 as dry, 2017 as wet, and 2018 and 2019 as average. For periods of atmospheric droughts, the average daily climatic water balance (CWB) ranged from -5.30 to -1.35 mm∙d-1. The water table did not fall below 90 cm b.g.l. during the entire study period, and the range of its fluctuations was 8 cm greater in the shallow than in the medium-deep profile. The range of moisture at different depths varied significantly and ranged from approx. 6% in periods of drought to about 80% in wet periods. Soil moisture throughout the measurement period was above the plant available water range (pF > 4.2). The occurrence of soil drought in the shallow peat-moorsh soil profile had a range of up to 40 cm, and in the medium-deep profile of up to 30 cm. The sequence of no-precipitation days and the maximum amount of daily evapotranspiration during them determine the possible timing of drought; however, it is the precipitation distribution in individual months, considered in the current CWB values, that ultimately determine the formation of soil water resources at the research site.
Źródło:
Journal of Water and Land Development; 2023, 59; 234--247
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Practical experiences with the EASY TEST FOM moisture meter in assessing the soil water balance of a maize field
Autorzy:
Stenitzer, E.
Gassner, L.
Powiązania:
https://bibliotekanauki.pl/articles/24846.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil water
SIMWASER simulation model
measurement
soil
field
agricultural soil
maize
water content
water balance
Źródło:
International Agrophysics; 2004, 18, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial characteristics of water conductivity in the surface level of Polish arable soils
Autorzy:
Walczak, R
Ostrowski, J.
Witkowska-Walczak, B.
Slawinski, C.
Powiązania:
https://bibliotekanauki.pl/articles/26447.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
surface level
Polska
water permeability
soil
water conductivity
water retention
arable soil
water balance
Źródło:
International Agrophysics; 2002, 16, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil water balance of an arid linear sand dune
Autorzy:
Rummel, B.
Felix-Henningsen, P.
Powiązania:
https://bibliotekanauki.pl/articles/25882.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
arid linear sand dune
arid ecosystem
soil
moisture measurement
water soil
time domain reflectometry
water balance
Źródło:
International Agrophysics; 2004, 18, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybrane aspekty badania długoterminowych cykli zmian zapasu wody glebowej w drzewostanach jednogeneracyjnych
Selected aspects of the study of long-term cycles of changes in the soil water storage in single generation stands
Autorzy:
Suliński, J.
Starzak, R.
Powiązania:
https://bibliotekanauki.pl/articles/979483.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany jednopokoleniowe
woda glebowa
zapas wody w gruncie
zmiany zapasu wody glebowej
forest water balance
forest soil water storage
water balance equation
atmosphere−forest−soil model
Opis:
This article describes cyclic changes in the soil water storage that take place within developmental stages of the stands managed by clear−cutting system. The aim of the paper is to present possibilities of studying these changes and their significance for the dynamics of waterlogging of forest ecosystems and water outflow from the forest. Soil water storage (SWS) in forest soils undergoes cyclic changes that can be divided into short−term, seasonal and long−term. Short−term changes, calculated on a daily basis, and seasonal, covering the entire growing season, can be identified and analyzed based on stock values measured over relatively short periods. Studying long−term cycles in this way is practically impossible, as there are no long−term measuring sequences. However, it is possible to use water−balance equilibrium in atmosphere−stand−soil (A−D−G) for this purpose. The dependent variables include increments of soil water storage, while independent ones are represented by the biometric features of stands and hydro−climatic factors. The balance equations should be built separately for SWS supply and losses. In the recharge phase the increase of the SWS after single rainfall, the amount of potential interception proportional to the plant surface and the weight of the forest litter as well as rainfall intensity and duration, which determine the level of its use are taken into account. SWS losses are explained by the rates of plant transpiration, linearly dependent on the amount of biomass produced and evaporation from the soil surface, which is a function of the amount of solar energy and wind velocity within the stand. They are modulated in relation to the conditions above the canopy that in turn depend on biometric characteristics of the stand. Taking into account the hydro−climatic conditions above the canopy ensures that the ceteris paribus condition is met. Recognition of long−term SWS cycles is possible due to the knowledge of stand dynamics manifested by changes in the value of its biometric features. The identification of equations according to the above−mentioned indications was carried out many times with very high compliance in the conditions of even−aged low−energy stands. The occurrence of long−term SWS cycles raises a number of questions regarding the forest ecosystem functioning, description of forest sites, silvicultural systems applied as well as the ability to control the water balance in forest ecosystems. The hydrological conditions in the forest ecosystem are shaped mostly upon selecting silvicultural system to be implemented. It results in specific changes in biometric features in the subsequent stand development stages modulating the components of the A−D−G balance and, as a consequence, soil water relations. The impact of ongoing stand tending is limited. However, forest drainage, tree felling uncovering soil surface and sudden changes in the forest structure triggered by abiotic and biotic factors, may produce significant effects.
Źródło:
Sylwan; 2019, 163, 03; 216-227
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł

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