Szczegóły publikacji
Opis bibliograficzny
Model for estimating solar radiation transmission through horizontal layers in complex tree stands / Józef Suliński, Przemysław SYPKA, Rafał Starzak // Science of the Total Environment ; ISSN 0048-9697 . — 2026 — vol. 1013 art. no. 181320, s. 1–13. — Bibliogr. s. 12–13, Abstr. — Publikacja dostępna online od: 2026-01-05
Autorzy (3)
- Suliński Józef
- AGHSypka Przemysław
- Starzak Rafał
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 165637 |
|---|---|
| Data dodania do BaDAP | 2026-02-17 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.scitotenv.2025.181320 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Science of the Total Environment |
Abstract
The amount of solar radiation energy inside a tree stand is one of the main factors influencing site productivity and the growth conditions of forest communities. In this paper, a model for estimating solar radiation transmission through horizontal layers within a tree stand has been developed. The described model was verified based on solar insolation measurements recorded in 26 tree stands growing in various physiographic conditions of the Western Carpathians (temperate climate zone) and differing in age, species composition, and vertical structure. Solar insolation was measured at four levels, and six layers were determined at each site (156 layers in total). The model parameters are largely determined by volumetric biomass density, layer thickness, foliage biomass, and the height of the top surface of the investigated layer above ground level in relation to tree stand height. Volumetric biomass density is computed as the ratio of the biomass of all plants above the ground to the volume occupied by the whole tree stand (including empty spaces between plants). The calculated volumetric biomass density is not affected by the tree species present in a stand. The model explains variation in solar transmittance with very high precision (97.9 %) and average error of 12 %. The analysed layer can be selected arbitrarily; nevertheless, the crown zone should be considered a single, indivisible layer spanning from the treetops to the crown base. The crown zone may be assigned to any chosen layer, but only as a whole. This restriction results from the arrangement of solar sensors and, consequently, from the lack of measurement data obtained inside the crown zone during model evaluation. Its removal would require re-evaluating the model using a dataset with solar insolation and explanatory-variable values obtained for several layers within the tree crowns. The model may be helpful when plotting vertical distribution of solar transmittance based on biometric features measured in standard forest inventories of a tree stand and for solving research and engineering problems in the broadly understood field of forest management.
