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Wyświetlanie 1-2 z 2
Tytuł:
Fungal community change in selected fluvisols under simulated flooding condition
Autorzy:
Furtak, Karolina
Grządziel, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/26917709.pdf
Data publikacji:
2023
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
flood
fluvisols
fungi
microcosm experiment
mycobiome
soil moisture
Opis:
The soil mycobiome is an important part of the numerous biogeochemical processes taking place in the soil. Its activity and diversity are influenced by many factors, including soil moisture. In this study, the effect of a 14-day simulated flood on the mycobiome of three different Fluvisols in microcosm experiment was assessed using next-generation sequencing. The results obtained showed that excessive moisture alters the structure of the mycobiome and the amounts of pathogenic, parasitic, and endophytic fungi. Among others, an increase in the occurrence of saprotrophic fungi of the genera Trichoderma, Talaromyces, and Schizothecium was noted. At the same time, the study showeda decrease in the abundance of arbuscular mycorrhizal fungi from the phylum Glomeromycota and Mucoromycota as a result of flooding. In addition, the structure of the soil mycobiome has been shown to be closely related to soil type – statistically significant correlations of individual fungal genera with the clay and silt or sand content of the soil were obtained. Future research on the soil mycobiome under flooding conditions may help to understand changes in soil biogeochemical processes following flooding, the occurrence of which is increasing with climate change.
Źródło:
Polish Journal of Agronomy; 2023, 52; 31-43
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stability of soil aggregate in loamy soils of Slovakia
Autorzy:
Šimanský, V.
Kravka, M.
Jonczak, J.
Powiązania:
https://bibliotekanauki.pl/articles/1190164.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
soil organic matter
water-stable aggregates
threshold limit
Chernozems
Fluvisols
Opis:
Stability of soil aggregates is affected by dozens different factors and their individual effects are hardly discernable. For this reason, we investigated the structure of the top layer (to a depth 0.2 m) of loamy soils (Haplic Fluvisol, Mollic Fluvisol and Calcaric Chernozem), at three sites (Šulekovo, Trakovice and Bučany) in the north-western part of the Danube Lowlands (Slovakia) in order to: (1) evaluate the differences in soil organic matter (SOM), texture, water-stable aggregates (WSA) and content of SOM in WSA; (2) determine the relationships between SOM, texture and WSA; and (3) identify the threshold limits for soil organic carbon (SOC) and the particle-size distributions for stabilization of water-stable macro-aggregates (WSAma). We found significant effects of a soil type on both SOM and WSA as well as on the content of SOM in WSA. When all loamy soils were assessed together, positive significant correlations were observed between size fractions of WSAma >2 mm and the content of SOC and hot-water soluble carbon (CHWD). The content of WSAma 1-0.25 mm and water-stable micro-aggregates (WSAmi) correlated negatively with SOC and CHWD. The quality of SOM was more important than its quantity for the stabilization of WSAma at size fractions 1-0.25 mm and WSAmi. The content of clay improved the aggregation in size fractions of WSAma >2 mm in the investigated top layer of loamy soils. The maximum WSAma content occurred where the ratio of organic carbon content in WSAma to that in soil was ~1.0. The threshold limits for clay and silt content for the formation of WSAma were ~20% and equal to 43%, respectively.
Źródło:
Journal of Elementology; 2017, 22, 2; 581-592
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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