Azerbaijan National Academy of Sciences

Director of the Institute of Dendrology, corresponding member of ANAS Tofig Mammadov conducted a study of the influence of carbon dioxide on the dynamics of growth, phenology, growth in height and plant productivity due to climate change in the flora of Azerbaijan in recent decades.

In dendrochronological studies conducted by employees of this scientific institution, the effect of climate change on the growth of trees in forests is analyzed. This allowed us to collect long-term data on forest development and annual tree growth. In order to determine the environmental stability of tree species in forests based on this information, we studied the influence of climatic factors on the development of plant roots using distance measurements between rings.

The study examined the effect of increasing carbon dioxide content on tree growth in forests, plant growth dynamics, phenology, soil properties, and the mechanism of the effects of carbon stocks on fires, insect attacks, and floods.

Earth's climate is a complex, multi-component system that has undergone many changes throughout history. One of the main causes of global changes in the atmosphere in the 20th century is the influence of anthropogenic factors in the environment. As a result of these anthropogenic factors, the thermal efficiency of forests increased, which led to the growth, phenology and dynamics of plants. According to a recent assessment by the Intergovernmental Panel on Climate Change (IPCC, 2007), the average global temperature has risen 0.8-1.2 degrees over the past 100 years. The increase in temperature is mainly due to anthropogenic factors. The basis of anthropogenic factors are carbon gases, methane, nitrogen oxides, nitrogen oxides (I) and chlorine-fluorine-containing compounds that create a thermal effect. According to the UN Framework Convention on Climate Change, climate change is a factor that changes the composition of the atmosphere and directly or indirectly affects human activities.

In the context of global climate change, future increases in the severity of climate events are expected to affect forests in a variety of ways. In some areas, projected warming threatens drier conditions in the northern regions, which could directly lead to increased forest fires. An increase in drought amid recent climate change is expected to reduce tree growth in some high regions of the Nakhchivan Autonomous Republic. In addition, climate change can lead to the spread of pests, including both native and exotic species.

The reason for the decrease in growth on Absheron is due to drought and pests. In addition, pathogenic insects or droughts that occur in late winter or spring can cause serious damage to tree roots.

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