Типологічна структура й таксаційні показники робінієвих деревостанів у захисних лісах лісогосподарської області Байрачного степу України
| Autor: | S. A. Sytnyk, L. V. Muradyan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
робінія несправжньоакація
типи лісу гельсінські критерії сталого розвитку лісового господарства дніпропетровське управління лісового та мисливського господарства geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences biology Steppe Forest management Robinia Forestry 04 agricultural and veterinary sciences biology.organism_classification 01 natural sciences Stocking 040103 agronomy & agriculture 0401 agriculture forestry and fisheries General Earth and Planetary Sciences lcsh:SD1-669.5 Ravine Soil fertility lcsh:Forestry Locust 0105 earth and related environmental sciences General Environmental Science Riparian zone |
| Zdroj: | Науковий вісник НЛТУ України, Vol 30, Iss 5, Pp 36-41 (2020) |
| ISSN: | 2519-2477 1994-7836 |
| Popis: | Forest reclamation is one of the main management approaches to solving the problems caused by wind and water erosion of soils, the intensification of which has been observed recently as a result of climate change at the global and local levels. Due to the ecological strategy of the expert and the rapid accumulation of aboveground phytomass, Black locust (Robinia pseudoacacia L.) is recognized as one of the most promising tree species for the purposes of forest reclamation of disturbed lands in the Steppe zone in Ukraine. Materials of basic forest management of the Verchniodniprovsk Forestry SOE (2014) were used to analyze forest typological structure and the valuation features of the Black locust forest fund. Black locust stands of protective forests of the forestry region of the Ravine Steppe of Ukraine are revealed to be artificial by origin, created by growing forest plantations. The age structure of the Black locust stands in the forestry region is unbalanced, with a significant predominance of overmature stands – 74.9 %. The average age of the studied Black locust stands is 43 years. The largest average stock of trunk wood (199 m3·ha-1) is characterized by overmature Black locust stands aged 51‑55 years (XI class of age). It is established that the largest share of Black locust stands of the Ravine Steppe is concentrated in the fairly fertile soil type conditions – 67.6 %. Fertile soil types of forest vegetation conditions make up 20.5 % of the area of the Black locust stands. According to the degree of soil moisture of the investigated stands within the territory of the Ravine Steppe forestry region, prefers dry conditions, where 92.1 % of the Black locust forest stands in the region are concentrated. It is found that Black locust participates in the formation of twenty forest types in the studied region, the most common of which is the halogen variant of dry fairly fertile soil type. The largest area of studied stands in protective forests is occupied by Robinia stands, which grow in the first class of stand quality (94.1 %). The average class quality is II.5. Black locust stands in the protective forests within Riparian Steppe forestry region are mostly high-density stand stocking. The largest share (68.3 %) is timed to the fullness of 0.8. Significant representation of high quality stand demonstrates the similarity of the Black locust stands to the forest site conditions within protective forests of Ravine Steppe of Ukraine. |
| Databáze: | OpenAIRE |
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