Crimean pine is one of the most important plantation and natural species in Turkey. In spite of this importance, information on the growth and yield of this species is lacking. For this reason, a model for growth and yield in crimean pine plantations is described, in which stand development is derived from relation to age and site index. Data were collected from 115 temporary sample plots from plantations ranging in age from 3 to 50 years. Site index curves and empirical yield tables were developed and presented. Site index curves were used to classify plantations into site classes of I, II and III, in order of decreasing productivity. Yield functions indicate that crimean pine can be grown on biologically optimum rotations of 35, 36 and 37 years on site classes I, II and III, respectively. The models can be calibrated on permanent field plot data and tested against independent long term growth and yield records.
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http://dx.doi.org/10.3923/pjbs.2007.1.6 | DOI Listing |
Environ Monit Assess
December 2024
Department of Forest Engineering, Faculty of Forestry, Çankırı Karatekin University, 18200, Çankırı, Turkey.
Nowadays, many forests are intensely exposed to the adverse effects of climate change such as drought. To increase the resilience of the forests against climate change, prescribing appropriate silvicultural treatments is of great importance. At this point, closely scrutinizing the simultaneous effects of competition and climate on the forests has become a very important issue.
View Article and Find Full Text PDFVopr Kurortol Fizioter Lech Fiz Kult
May 2023
State Nikitsky Botanical Gardens - National Scientific Center of the Russian Academy of Sciences, Yalta, Russia.
Unlabelled: Increase of patients with hypertension in the world determines the search for new, accessible, easily applicable and mildly effective antihypertensive agents, particularly essential oils (EO). Currently available studies of the EO impact on blood pressure do not allow to assess the efficiency of such therapy.
Objective: To perform the comparative study of antihypertensive effects of inhalation with EO vapors of various composition.
Environ Monit Assess
September 2021
Institute of Science, Kastamonu University, Forest Engineering Program, 37150, Kastamonu, Turkey.
Controlling forest pests to maintain the sustainability of forests and ecosystem balance is one of the interests of modern forestry. In the evaluation of damage risks associated with forest pests, pheromone traps attract attention by providing early warnings. With the development of these traps in line with modern technology, more reliable data are obtained; these data are important in the identification and planning of pest management.
View Article and Find Full Text PDFVopr Kurortol Fizioter Lech Fiz Kult
July 2019
S.I. Georgievsky Medical Academy of the V.I. Vernadsky Crimean Federal University, Simferopol, Russia.
The Rationale: The clinical course of bronchial asthma (BA) largely depends on the environmental conditions. One of the biological factors of the environmental pollution is the plant pollen. The presence of plant pollen in the air exerts the negative influence on the human health via specific (allergenic) and non-specific effects.
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