Pluviothermal Regionalization of Poland in Light of Present-Day Climate Change

Abstract

This study presents three new regionalizations based on materials from 1971-2000 and from 1981-2010, and for an assumed scenario of a temperature increase of 1ºC. Heat resources are expressed in these regionalizations as sums of effective temperatures ≥10ºC, and water resources such as Sielianinov's hydrothermal coefficient K from June to August. An increase was found in the area of the moderately warm region with a sum of temperatures ≥10ºC from 61% in 1931-1960 to 62% in 1971-2000, 87% in the 30-year period 1981-2010, and 73% for the scenario with the assumed 1ºC temperature increase. In the last case, a new thermal region appeared: a warm region with a sum of temperatures ≥10ºC in the range of 2800-3200ºC, covering almost the entire remaining area of the country. As warming progresses, in the absence of clear tendencies for atmospheric precipitation, the climate in Poland is becoming increasingly dry. Areas classified as dry with a hydrothermal coefficient of 1.0-1.3 increased from 13% of the area of the country in 1931-1960 to 20% in the 30-year period 1971-2000, 46% in the 30-year period 1981-2010, and 65% for the scenario with a 1ºC temperature increase.

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

“…The presence and magnitude of the average precipitation deficiencies are consistent with the conclusion resulting from long-term field research carried out by the research team from the University of Science and Technology in Bydgoszcz, Poland, that sugar beet production in the region of Kujawsko-Pomorskie is conducted in conditions of water deficits [41]. Results presented in the work by Ziernicka-Wojtaszek [42] confirm that the region of Kujawsko-Pomorskie is among those areas where hydro-thermal conditions in the period of June-August are designated as moderately The presence and magnitude of the average precipitation deficiencies are consistent with the conclusion resulting from long-term field research carried out by the research team from the University of Science and Technology in Bydgoszcz, Poland, that sugar beet production in the region of Kujawsko-Pomorskie is conducted in conditions of water deficits [41]. Results presented in the work by Ziernicka-Wojtaszek [42] confirm that the region of Kujawsko-Pomorskie is among those areas where hydro-thermal conditions in the period of June-August are designated as moderately dry.…”

“…Results presented in the work by Ziernicka-Wojtaszek [42] confirm that the region of Kujawsko-Pomorskie is among those areas where hydro-thermal conditions in the period of June-August are designated as moderately The presence and magnitude of the average precipitation deficiencies are consistent with the conclusion resulting from long-term field research carried out by the research team from the University of Science and Technology in Bydgoszcz, Poland, that sugar beet production in the region of Kujawsko-Pomorskie is conducted in conditions of water deficits [41]. Results presented in the work by Ziernicka-Wojtaszek [42] confirm that the region of Kujawsko-Pomorskie is among those areas where hydro-thermal conditions in the period of June-August are designated as moderately dry. According to the statement of the author, as climate warming progresses, in the absence of significant trends of atmospheric precipitation in the temperate climate represented by the central part of Poland, the conditions may become even more arid.…”

Environmental Factors Effects on Winter Wheat Competition with Herbicide-Resistant or Susceptible Silky Bentgrass (Apera spica-venti L.) in Poland

“…where P is the precipitation total and t is the sum of daily air temperature values. The classification is K < 1.3 moderately dry seasons, 1.3-1.6 optimum, and >1.6 classified as humid season [33]. The calculated K values are presented in Table 4.…”

Intra and interspecies competition of blackgrass and wheat in context of herbicidal resistance and environmental conditions of Poland

“…where, P is the precipitation total, and t is the sum of daily mean air temperature values. The classi cation for Poland's temperate climate is K<1.3 moderately dry seasons; 1.3-1.6 optimum; and >1.6 humid season [64]. The calculated K values are presented in Table 9.…”