Condition mature and over mature pine forests national park "Buzuluk pine wood" and key factors affecting their bioecological resistance

Data on the structure of a part of natural old–age plantings of a pine are provided in the national park “Buzuluk pine wood”. The characteristic of a sanitary condition of plantings is given, the main reasons for the weakening of forest stands are analyzed. The opinion on the prospects of development and dynamics of separate elements of forest forming vegetation in connection with the establishment of the reserved mode is expressed. The basis of the article was formed by material on inspection of three sites located in Koltubansk, Borovoi skilled and Partizansk forest areas. The author notes that merestone pine plantings of the Buzuluk pine wood, though continue to perform own ecological and other biological functions, and gradually lose stability. Data on taxation characteristics of pine forests are provided. In the conclusion it is noted that essential deterioration in a condition over mature of pine forests of the Buzuluk pine wood in the absence of the catastrophic weather phenomena is not predicted, moreover, the possible improvement of forest vegetation conditions caused by reduction of anthropogenous load of the woods owing to introduction of the reserved mode on a part of the territory of pine forest can strengthen process of natural updating of pine plantings