Temporal variability of drought in field crops in the region of Kujawsko-Pomorskie, Poland

Kuśmierek‐Tomaszewska, Renata; Dudek, S.; Żarski, J.; Januszewska-Klapa, Katarzyna

doi:10.22616/rrd.24.2018.052

Cited by 9 publications

(7 citation statements)

References 5 publications

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“…The consistency of meteorological and agricultural drought occurrences in the region is presented in Figure 5. It should be noted that there was a strong positive correlation between those phenomena in all considered locations, which is compliant with the results of other studies [43,44]. Pearson's correlation coefficients ranged in the region of Kujawsko-Pomorskie from 0.89 in southern (MS-3-Go) to 0.95 in the northern part (MS-1-M).…”

Section: Resultssupporting

confidence: 91%

Assessment of Irrigation Needs in Sugar Beet (Beta vulgaris L.) in Temperate Climate of Kujawsko-Pomorskie Region (Poland)

Kuśmierek‐Tomaszewska

Żarski

Dudek

2019

Agronomy

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The primary purpose of this work was to assess the need for irrigation in sugar beet cultivated in the temperate climate of the Kujawsko-Pomorskie region of Poland based on meteorological data from the period 1981–2010. The work was also aimed at determining the tendency of changes in the frequency and intensity of droughts during the period of high water needs for sugar beets (spanning July–August) and confirming the hypothesis that agricultural drought may be identified based on the indicator of meteorological drought—Standardized Precipitation Index (SPI). The occurrence of meteorological droughts amounted to 26.7–40.0%, depending on location. No significant trend of increasing dryness was found; however, quite the opposite, an upward tendency was identified, which indicates an improvement of precipitation conditions over time. It was found that sugar beet production in a temperate climate is carried out in the conditions of precipitation deficits, which amount to an average of 32–49 mm and a maximum of 112–173 mm in July–August, but the deficits showed neither significant nor targeted changes with time. A strong, significant relationship between meteorological (SPI) and agricultural (Pdef) drought indicators allows for a determination of sugar beet irrigation needs solely based on information on normalized precipitation values (SPI).

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Section: Resultssupporting

confidence: 91%

Assessment of Irrigation Needs in Sugar Beet (Beta vulgaris L.) in Temperate Climate of Kujawsko-Pomorskie Region (Poland)

Kuśmierek‐Tomaszewska

Żarski

Dudek

2019

Agronomy

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“…In Poland, under conditions of the moderate climate transition between maritime and continental, the average rainfall totals in the growing season are in a range of 350-400 mm; however, they are distinguished by great temporal and spatial variability. Therefore, irrigation of sugar beet has a supplementary and intervention nature and is applied only when dry periods occur in the growing season [7,8], the frequency of which is approximately 30% [9][10][11]. There were relatively few national experiments until now, but they showed that sugar beet responds to sprinkling irrigation with a root yield increase but a decrease in the sugar content [12,13].…”

Section: Introductionmentioning

confidence: 99%

Impact of Irrigation and Fertigation on the Yield and Quality of Sugar Beet (Beta vulgaris L.) in a Moderate Climate

Żarski

Kuśmierek‐Tomaszewska

Dudek

2020

Agronomy

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In Poland, under conditions of the moderate climate and transition between maritime and continental climates, the average rainfall totals of the growing season are in the range of 350–400 mm; however, they are distinguished by great temporal and spatial variability. Climatological studies demonstrate that the drought frequency is approximately 30%. Therefore, under such conditions, irrigation has a supplementary and intervention nature and is applied only when dry periods occur. The aim of this study was to determine the impact of sprinkler irrigation and increased nitrogen fertilization on the yield and quality of sugar beet roots and yield of sugar. The average increase of the yield under irrigation was 18.1 t·ha−1 which constituted a 22.8% increase in the yield. Furthermore, there was a marked tendency of a higher sugar content in the roots of irrigated plants. The absolute, relative, and unit average sugar beet root yield increases obtained under the influence of sprinkler irrigation and the lack of a significant diversity in the sugar content in roots confirm that irrigation contributed to an appropriate pace of plant growth and development. The increased rate of nitrogen fertilization (N2) of 160 kg N·ha−1 plus an additional 40 kg N·ha−1 resulted in the significantly greater root yields compared to the control (N1) (160 kg N·ha−1), i.e., an average of 7.6 t·ha−1 (9%). Based on the crop-water production function, the maximum root yields were obtained for the N1 rate at a total precipitation and irrigation amount of 382 mm, compared with 367 mm for the N2 rate.

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“…Finally, solar and wind are not the only variable renewable energy sources in Poland, and future works should also consider the complementarity of the solar-wind-hydropower trio (which is also important even for lowland countries), since they too have the potential to develop small-scale hydropower projects [62,63]. This is especially important as there is a pressing need to efficiently utilize available water resources to overcome droughts [64,65] and to improve the water-energy-food nexus [66,67].…”

Section: Discussionmentioning

confidence: 99%

Complementarity and ‘Resource Droughts’ of Solar and Wind Energy in Poland: An ERA5-Based Analysis

et al. 2021

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In recent years, Poland has experienced a significant increase in the installed capacity of solar and wind power plants. Renewables are gaining increasing interest not only because of Poland’s obligations to European Union policies, but also because they are becoming cheaper. Wind and solar energy are fairly-well investigated technologies in Poland and new reports are quite frequently added to the existing research works documenting their potential and the issues related to their use. In this article, we analyze the spatial and temporal behavior of solar and wind resources based on reanalysis datasets from ERA5. This reanalysis has been selected because it has appropriate spatial and temporal resolution and fits the field measurements well. The presented analysis focuses only on the availability of energy potential/resources, so characteristics intrinsic to energy conversion (like wind turbine power curve) were not considered. The analysis considered the last 40 years (1980–2019) of available data. The Spearman coefficient of correlation was considered as a complementarity metric, and the Mann–Kendal test was used to assess the statistical significance of trends. The results revealed that: The temporal complementarity between solar and wind resources exists mostly on a seasonal scale and is almost negligible for daily and hourly observations. Moreover, solar and wind resources in joint operation exhibit a smoother availability pattern (assessed based on coefficient of variation). Further findings show that the probability of ‘resource droughts’ (periods when cumulative generation was less than arbitrary threshold) lasting one day is 11.5% for solar resources, 21.3% for wind resources and only 6.2% if both resources are considered in a joint resource evaluation. This situation strongly favors the growth of local hybrid systems, as their combined power output would exhibit lower variability and intermittency, thus decreasing storage demand and/or smoothing power system operation.

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Temporal variability of drought in field crops in the region of Kujawsko-Pomorskie, Poland

Cited by 9 publications

References 5 publications

Assessment of Irrigation Needs in Sugar Beet (Beta vulgaris L.) in Temperate Climate of Kujawsko-Pomorskie Region (Poland)

Assessment of Irrigation Needs in Sugar Beet (Beta vulgaris L.) in Temperate Climate of Kujawsko-Pomorskie Region (Poland)

Impact of Irrigation and Fertigation on the Yield and Quality of Sugar Beet (Beta vulgaris L.) in a Moderate Climate

Complementarity and ‘Resource Droughts’ of Solar and Wind Energy in Poland: An ERA5-Based Analysis

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