Positive effect of fir-rowan intimate mixture on new forest floor and topsoil following afforestation

Dušan Kacálek, Jan Bartoš and Ondřej Špulák
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Dušan Kacálek: Opočno Research Station, Forestry and Game Management Research Institute, Strnady, Czech Republic
Jan Bartoš: Opočno Research Station, Forestry and Game Management Research Institute, Strnady, Czech Republic
Ondřej Špulák: Opočno Research Station, Forestry and Game Management Research Institute, Strnady, Czech Republic

Journal of Forest Science, 2023, vol. 69, issue 2, 80-92

Abstract: Litterfall of silver fir contributes to development of forest floor similarly like Norway spruce litterfall does. The nutrient return to soil can be intensified by mixing these conifers with other tree species whose effects on soil are positive; our study deals with European rowan. The study aimed at firs and rowans in alternating rows (Fi-Ro) compared to the monospecific plantation of fir (Fi) at two former meadow sites with the stands of 20 and 17 years of age, respectively. Both organic forest floor and its mineral subsurface were sampled. Rowan admixed to the silver fir plantation improved both the uppermost layer and the topsoil as higher pH, more favourable soil-sorption properties and higher plant available magnesium were found below Fi-Ro compared to Fi. Fine dry matter was higher below Fi, which was reflected in higher organic carbon (Cox), combustible matter and nitrogen pools. Besides the effects of trees on the soil, silvicultural issues such as renewal costs and tree species performance in monospecific and mixed stands were presented and discussed.

Keywords: broadleaves; conifers; fertility; nutrient return; organic layers; planted forest (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:69:y:2023:i:2:id:180-2022-jfs

DOI: 10.17221/180/2022-JFS

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