نوع مقاله : مقاله پژوهشی
نویسندگان
1 بخش تحقیقات جنگلها و مراتع، مرکز تحقیقات و آموزش کشاورزی و منابعطبیعی استان چهارمحال و بختیاری، سازمان تحقیقات، آموزش و ترویج کشاورزی، شهرکرد، ایران.
2 مؤسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران.
3 بخش تحقیقات جنگلها و مراتع، مرکز تحقیقات و آموزش کشاورزی و منابعطبیعی استان کردستان، سـازمان تحقیقـات، آمـوزش و ترویج کشاورزی، سنندج، ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The Zagros forests, being the largest and most important forest ecosystems in the country, provide valuable ecosystem services. The percentage of forest canopy cover, a crucial component of forest statistics, has a strong relationship with ecohydrological processes and plays a vital role in forest inventory programs. In this study, changes in canopy cover percentage were examined in sample plots located in the provinces of Kurdistan (Dulehnaw, Gharan, Belveh, and Saraki) and Chaharmahal and Bakhtiari (Gelsefid, Rahimabad, Gardaneh Cheri, and Mavarz), representing the northern and southern Zagros forests, respectively. Each plot underwent a comprehensive measurement process, including the assessment of species composition, growth form, and average crown diameter. Static images of tree canopies were captured in 2021 and 2022 to analyze changes in canopy cover. The analysis revealed statistically significant differences in canopy cover between provinces. Significant differences in canopy cover changes were observed in the Dulehnaw, Gharan, and Rahimabad forest stands over the two years, but no significant statistical differences were found in the Saraki, Belveh, Gardaneh Cheri, Mavarz, and Gelsefid stands. Furthermore, in both provinces, the highest increase in canopy cover percentage was recorded in the southern direction, with values of 7.46% and 3.97%, respectively. Detailed and comprehensive analyses of the canopy cover index, particularly in the Zagros region, are crucial for effective management planning in forest ecosystems. The two-year variations in this index provide valuable insights into the influence of vegetation type, structure, and ecological conditions on canopy dynamics, serving as a gateway for energy to plants.
کلیدواژهها [English]