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Impact of beaver dams on surface channel capacity and phytocoenoses diversity of Łąki Soleckie (PLH140055)

Oleszczuk Ryszard, Urbański Janusz, Pawluśkiewicz Bogumiła, Bajkowski Sławomir, Małuszyński Marcin J., Małuszyńska Ilona, Jadczyszyn Jan, Hewelke Edyta

Journal of Water and Land Development

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2024

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no. 61

96--105

EN

The aim of the study was to determine the extent to which created and functioning beaver dams contribute to increasing water retention in the Łąki Soleckie facility (Mała River valley). Changes in the plant cover of meadow habitats within the range of beaver dams were also determined. During the growing periods in 2020-2022, measurements of the periodic levels and water retention of the Mała River and the adjacent ditches (R-27, R-29) were closely related to the activity of beavers and precipitation. The maximum volume of water retained in the Mała riverbed in 2020-2022 was 1,300, 1,700, and 1,200 m3 ; the maximum retention of the R-29 ditch was 270, 210, and 200 m3, respectively. In 2021-2022, the R-27 ditch collected the most water - 270 m3 and 250 m3. Starting from June 2022, due to beaver dams D2 and D3, the water level in the river and water retention have stabilised at a high level, despite slight rainfall. The activity of beavers contributed to the transformation of communities of wet habitats located on organic soils (Calthion) into communities of periodically wet habitats (Caricetum gracilis). In places where natural habitat 6510 occurs, the coverage of species of the Festuca genus has increased, and the value of the biodiversity index has increased by an average of 9%. High stability in the community of expansive species (Deschampsia caespitosa and Veronica longifolia) and their increasing cover may make it difficult to maintain the proper condition of natural habitat 6510.

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Moisture content of peat-moorsh soils with special attention to periods of drought

Oleszczuk Ryszard, Jadczyszyn Jan, Urbański Janusz, Zając Ewelina, Brandyk Andrzej, Niedźwiecki Jacek

Journal of Water and Land Development

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2023

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no. 59

234--247

EN

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.

3

Importance and challenges for agriculture from High Nature Value Farmlands (HNVf) in Poland in the context of the provision of public goods under the European Green Deal

Zieliński Marek, Jadczyszyn Jan

Ekonomia i Środowisko

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2022

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nr 3

194--219

EN

The study aims to identify and characterise the organisational and economic features of agriculture in Poland in areas (communes) with different saturation of agriculture from High Nature Value farmlands (HNVf areas) with exceptionally high natural value. It is also important to determine whether the potential changes in agriculture in communes with a particularly large share of them do not harm the natural environment and limit the possibility of providing society with public goods. The delimitation of the three scenarios of HNVf areas was designated in the country at the request of the Ministry of Agriculture and Rural Development in 2018. HNVf areas of moderate, high, and exceptionally high natural value were designated. To achieve the purpose of the study, data from the Agency for Restructuring and Modernization of Agriculture (ARMA) for 2016 and 2021 and data from the Polish Farm Accountancy Data Network (FADN) for 2018-2020 was obtained. It was established that in Poland, the share of HNVf areas currently ranges from 12.5 (exceptionally high natural value) to 27.1% (moderate-high nature value) of the total UAA. Compared to other areas, HNVf areas with exceptionally high natural value are characterised by agriculture with a high level of extensive production. Farms from these areas obtain, e.g. lower total costs incurred per 1 ha of UAA, often lower productivity of production factors and lower income per 1 ha of UAA.

PL

Celem opracowania jest wskazanie i ocena cech organizacyjno-ekonomicznych rolnictwa w Polsce z obszarów (gmin) z różnym nasyceniem użytków rolnych High Nature Value farmlands (obszary HNVf) o wyjątkowo dużej cenności przyrodniczej. Istotne jest także ustalenie, czy potencjalne zmiany zachodzące w rolnictwie w gminach ze szczególnie dużym ich udziałem nie szkodzą środowisku przyrodniczemu i nie ograniczają możliwości dostarczania społeczeństwu dóbr publicznych. Delimitację trzech scenariuszy HNVf wyznaczono w kraju na zlecenie Ministerstwa Rolnictwa i Rozwoju Wsi w 2018 r. Wyznaczono obszary HNVf o umiarkowanej, dużej i wyjątkowo dużej cenności przyrodniczej. Dla zrealizowania celu opracowania wykorzystano dane z Agencji Restrukturyzacji i Modernizacji Rolnictwa (ARiMR) za 2016 i 2021 r. oraz dane Polskiego Farm Accountancy Data Network (FADN) za lata 2018-2020. Ustalono, że w Polsce udział obszarów HNVf wynosi obecnie od 12,5% (wyjątkowo wysoka wartość przyrodnicza) do 27,1% (umiarkowanie wysoka wartość przyrodnicza) ogólnej powierzchni użytków rolnych. Obszary HNVf o wyjątkowo wysokiej wartości przyrodniczej charakteryzują się rolnictwem o największym nasyceniu produkcją ekstensywną. Gospodarstwa z tych obszarów, na tle gospodarstw pozostałych uzyskują m.in. niższe koszty całkowite ponoszone na 1 ha UR, często niższą produktywność czynników produkcji oraz niższy dochód na 1 ha UR.

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Rola instytutów badawczych we wsparciu działań adaptacyjnych do zmian klimatu

Granoszewski Wojciech, Kowalczyk Agnieszka, Ploch Izabela, Rubinkiewicz Jacek, Woźnicka Małgorzata, Kępińska-Kasprzak Małgorzata, Limanówka Danuta, Doktor Radosław, Struzik Piotr, Dubel Anna, Skotak Krzysztof, Hajto Małgorzata, Kozyra Jerzy, Pudełko Rafał, Żyłowska Katarzyna, Jędrejek Anna, Łopatka Artur, Jadczyszyn Jan, Nieróbca Anna, Doroszewski Andrzej, Barszczewska Marta

Przegląd Geologiczny

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2020

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Vol. 68, nr 1

25--44

EN

A crucial part of every adaptation planning and disaster risk reduction is estimation of vulnerable areas and risk in the future. Only a well-developed monitoring system could bring valuable information to create possible scenarios to set up adaptation plans. Monitoring systems of meteorological conditions, surface water, groundwater, landslides, seacoast, agricultural drought as well as their standards and methodologies, are crucial for establishing an effective warning system of every country, and thus are the subject of research conducted by national institutes. Therefore, the conditions of this national research (getting trained staff, equipment etc.) is essential to provide reliable information for a national adaptation plan and for economic assessment of climate change impacts. Poland has significant experiences in monitoring systems, data collecting and visualizing, as well as in the development of scenarios and risk maps. Methodologies and capacity building, necessary for their use, along with experiences and lessons, learned to get valuable information for disaster risk reduction, were presented by the authors from the research during the 24th session of the Conference of the Parties to the United Nations Framework Convention on Climate Change (COP 24) in Katowice (December 2018). The presentation contributed to the global adaptation process through experience sharing that is important for the relevant research conducted in the least developed countries.

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Soil Bioavailability of Cadmium, Lead, and Zinc in the Areas of Zn-Pb Ore Mining and Processing (Bukowno, Olkusz)

Kicińska Alicja, Smreczak Bożena, Jadczyszyn Jan

Journal of Ecological Engineering

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2019

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Vol. 20, nr 1

84--92

EN

The study was performed to determine the bioavailable amounts of cadmium, lead, and zinc in the soils contaminated over the years of Zn-Pb ore mining and processing near Olkusz, Poland, and to identify the environmental risk (RAC) associated with the occurrence of the most mobile forms of these metals in the soil. The authors analyzed the topsoil samples for the basic physical and chemical parameters, as well as for total metal content (by aqua regia extraction), and for percentage of 1 M HCl- and 1 M NH4NO3 – extractable fractions. The results were compared with the content of these metals in a common grass species, Agrostis capillaris. In the study region, the Cd, Pb, and Zn contents were (respectively, in mg∙kg-1): 0.5–33.5, 2–529, and 4–7877. This means that in more than 24%, 30%, and 38% of samples, respectively, the metal content exceeded the limits defined by the Polish Environment Minister’s Regulation of September 9, 2002, with nearly 24% of soil samples contaminated by all three metals. On the basis of the Environment Minister’s Regulation of September 1, 2016, which is currently in force, and using the allowed limits for subgroup IV (industrial land), set at 15 mg∙kg-1 for Cd, 600 mg∙kg-1 for Pb, and 2000 mg∙kg-1 for Zn, the analysis also found the excessive metal content in a considerable percentage of the topsoil samples (33%, 13%, and 38%, respectively). The content of the studied elements in a common grass species, Agrostis capillaris, was significantly higher than the so-called natural content. A strict association was found between the total Cd, Pb, and Zn content, and the potentially available 1 M HCl – extractable fraction. The environmental risk presented by the content of mobile Cd, Pb, and Zn forms, assessed in all the studied soil samples using Risk Assessment Codes (RAC), demonstrates very high environmental risk associated with Cd, high environmental risk connected with Zn, and moderate environmental risk related to Pb.