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Вклад академика А.С. Исаева в развитие лесной науки
The contribution of academician A.S. Isaev to advancement of forest science is considered. The most significant achievements were in the spheres of forest entomology, aerospace monitoring of forests, forest carbon cycle and forest biodiversity. A.S. Isaev and coauthors have put forward phenomenological theory of population dynamics of forest insects. It encompasses all possible types of population dynamics, it does not demand the specific mathematical models of population dynamics and points at the key features, controlling the probability and risks of the outbreaks. A.S. Isaev was among the pioneers of aerospace monitoring of forests. He proposed the concept of multi-layered system of the remote monitoring of forests to address various research and applied demands. A.S. Isaev have payed high attention to forest carbon cycle associated to the challenges of climate change. He have published the first estimates of the forest carbon storage and deposition in Russia based on the forest inventory data. The methods of accounting of carbon were later included in technical guidance of the IPCC on the National Reporting on Inventory of Greenhouse Gases. The technology of monitoring of biodiversity of forest developed under the supervision of academician A.S. Isaev takes into account spatiotemporal dynamics of forest forming processes, applies mathematical modeling of processes and forecasts changes. It allows deciphering the trends in species and age structure of forests and model predictions of natural and human-induced dynamics under different protection, exploitation and regeneration.