Effects of Northern red oak (Quercus rubra L.) and sessile oak (Quercus petraea (Mattusch.) Liebl.) on the forest soil chemical properties

Abstract

Northern red oak (Quercus rubraL.) is one of the most important introduced tree species in the Czech Republic, occupying about 6,000 ha with ca. 900,000 m3of the standing volume. The presented study aims to evaluate its soil forming effects on natural oak sites. Soil chemistry of the upper soil layers (F+H, Ah, B horizons) was studied in three pairs of stands of both species. In each stand, four bulk samples were taken separately for particular horizons, each consisting of 5 soil-borer cores. The soil characteristics analysed were: pH (active and potential), soil adsorption complex characteristics (content of bases, exchangeable cation capacity, base saturation), exchangeable acidity (exchangeable Al and H), total carbon and nitrogen content, and plant available nutrients content (P, K, Ca, Mg). Total macronutrient content (P, K, Ca, Mg) was analysed only in holorganic horizons. Results confirmed acidification effects of red oak on the upper forest soil layers such as decreased pH, base content, base saturation, all nutrient contents in total as well as plant-available form and increased soil exchangeable acidity (exchangeable Al) in comparison to the sessile oak stands, especially in holorganic horizons and in the uppermost mineral layer (Ahhorizon). Northern red oak can be considered as a slightly site-soil degrading species in the studied sites and environmental conditions in comparison to native oak species.

Comparing Negative Impacts of Prunus serotina, Quercus rubra and Robinia pseudoacacia on Native Forest Ecosystems

“…The soils at the QF and QR sites had a similar exchangeable Ca cation content, likely indicating similar pedoclimatic conditions. This pattern is in accordance with previous studies [19,50].…”

“…For instance, compared to native forests, P. serotina stands are linked to lower pH values and base content (K, Ca, and Mg [18]. Q. rubra stands have strong impacts on topsoil, causing acidification, which affects the base and nutrient contents and increases soil exchangeable acidity [19]. In R. pseudoacacia stands, soil organic matter, phosphorus and total nitrogen contents have higher values [20].…”

Effects of Quercus rubra L. on soil properties and humus forms in 50-year-old and 80-year-old forest stands of Lombardy plain

“…Soil acidification occurred in red oak forest at both sites. Similarly, Miltner et al (2016) found a decrease in pH w values when investigating the effects of red oak on soil properties at forest sites in the Czech Republic. In particular, in Moder forms like those that predominantly characterized the ROF at the Bosco Ginestre site and part of red oak forest at the Bosco Vacaressino site, most of microbial biomass is fungal due to the more acidic conditions than in Mull (Nagel-de-Boois and Jansen 1967).…”

“…Compared with the extensive literature on the effects of invasive species on native plant community, structure, and understory environment (Chmura 2013;Hejda et al 2009;Lenda et al 2013;Vilà et al 2011), studies on the impact of red oak on soil properties are still limited and provided sometimes conflicting results (Bonifacio et al 2015;Miltner et al 2016;Riepsas and Straigyte 2008;Stefanowicz et al 2017). Unlike vegetation dynamics, which occur rapidly and are easily observable and interpretable, the understanding of soil dynamics and processes is complex, getting more difficult the formation of any generalizations on the invasion influence on soil.…”

Особливості Росту Та Фітомеліоративні Властивості Насаджень Дуба Червоного На Рекультивованих Землях Черкащини

“…Ці самі вчені (Miltner, Kupka & Třeštík, 2016) описують негативний вплив дуба червоного на верхній родючий шар лісового ґрунту порівняно з автохтонними видами дуба, зокрема, це має прояв через підвищену кислотність, нижчу реакцію ґрунту та менший вміст основ і поживних речовин як загалом, так і в доступних для рослинності формах у верхньому шарі ґрунтового профілю. Тож за винятком спустошених та девастованих ґрунтів, призначених для лісової рекультивації, цей вид спричиняє деградацію ґрунтових умов.…”