This is the 10415th most frequent Russian word.
вегетационный
"Вегетационный" means "related to vegetation or the growth period of plants."
In this sentence, "вегетационный" is used as an adjective to describe the period during which plants grow and develop actively.
Вегетационный период растений длится с весны до осени.
The vegetation period of plants lasts from spring to autumn.
Here, "вегетационного" serves as an adjective modifying "процесса," indicating it's related to plant growth processes.
Условия вегетационного процесса зависят от климата и почвы.
The conditions of the vegetative process depend on climate and soil.
In this sentence, "вегетационных" modifies "изменений," referring to changes occurring in vegetative growth or ecology.