Autor: KOWALCZYK, Tomasz - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The benefits of synthetic or natural hydrogels application in agriculture : an overview article
Autorzy:: Grabowska-Polanowska, Beata
Garbowski, Tomasz
Bar-Michalczyk, Dominika
Kowalczyk, Agnieszka
Powiązania:: https://bibliotekanauki.pl/articles/2048494.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: biopolymers
hydrogels
infiltration
polyacrylamide
polyacrylic polymers
superabsorbent polymers
surface runoff
SAP
Opis:: In recent years, a growing problem of water deficit has been observed, which is particularly acute for agriculture. To alleviate the effects of drought, hydrogel soil additives – superabsorbent polymers (SAPs) – can be helpful. The primary objective of this article was to present a comparison of the advantages resulting from the application of synthetic or natural hydrogels in agriculture. The analysis of the subject was carried out based on 129 articles published between 1992 and 2020. In the article, the advantages of the application of hydrogel products in order to improve soil quality, and crop growth. Both kinds of soil amendments (synthetic and natural) similarly improve the yield of crops. In the case of natural origin polymers, a lower cost of preparation and a shorter time of biodegradation are indicated as the main advantage in comparison to synthetic polymers, and greater security for the environment.
Źródło:: Journal of Water and Land Development; 2021, 51; 208-224
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Causes of groundwater level and chemistry changes in an urban area; a case study of Warsaw, Poland
Autorzy:: Krogulec, Ewa
Gruszczyński, Tomasz
Kowalczyk, Sebastian
Małecki, Jerzy J.
Porowska, Dorota
Sawicka, Katarzyna
Trzeciak, Joanna
Wojdalska, Anna
Zabłocki, Sebastian
Zaszewski, Daniel
Powiązania:: https://bibliotekanauki.pl/articles/24024702.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: urban area
Quaternary aquifer
Oligocene aquifer
groundwater level changes
infiltration
groundwater chemistry
Warsaw
obszar miejski
czwartorzędowe piętro wodonośne
oligoceńskie piętro wodonośne
zmiany poziomu wód gruntowych
infiltracja
chemizm wód podziemnych
Warszawa
Opis:: The presented studies focus on changes in groundwater levels and chemistry, and the identification of important factors influencing these changes on short- and long-term scales in urban areas. The results may be useful for rational and sustainable groundwater planning and management in cities. The studies concerned three aquifers: (1) the shallow Quaternary aquifer, (2) the deep Quaternary aquifer, and (3) the Oligocene aquifer in the capital city of Warsaw (Poland). The spatial variability of groundwater recharge was determined and its changes in time were characterized. The characteristics of groundwater levels were based on long-term monitoring series. The results indicate that urban development has caused overall reduction in infiltration recharge (from 54 to 51 mm/year), which is particularly clear in the city suburbs and in its centre, where land development has significantly densified during the last 30 years. Studies of groundwater levels indicate variable long-term trends. However, for the shallowest aquifer, the trends indicate a gradual decrease of the groundwater levels. In the case of the much deeper Oligocene aquifer, groundwater table rise is observed since the 1970s (averagely c. 20 m), which is related with excessive pumping. Based on the studied results, the groundwater chemistry in the subsurface aquifer indicates strong anthropogenic influence, which is reflected in multi-ionic hydrogeochemical types and the occurrence of chemical tracers typical of human activity. The Oligocene aquifer is characterized by a chemical composition indicating the influence of geogenic factors.
Źródło:: Acta Geologica Polonica; 2022, 72, 4; 495--517
0001-5709
Pojawia się w:: Acta Geologica Polonica
Dostawca treści:: Biblioteka Nauki

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