MODELING THE DISTRIBUTION AND FACTORS INFLUENCING CAMELLIA FURFURACEA IN TA DUNG NATIONAL PARK, DAK NONG PROVINCE
DOI:
https://doi.org/10.70169/VJFS.1013Keywords:
Species distribution model, Camellia furfuracea, affect factor, bioclimatic variables, maxent, AUC, Ta Dung National ParkAbstract
This study focuses on modeling the distribution of the tea species (Camellia furfuracea) in Ta Dung National Park, Dak Nong province, Vietnam. The Maxent species distribution modeling method was used to identify the main environmental factors influencing the species' distribution. Input data included field information with 76 distribution points of the species, bioclimatic variables, topographic variables (altitude, slope, aspect), and land cover data. Results showed that the diurnal temperature range (Bio02) was the most important factor, contributing 41% to the model with an importance value of 85.3%; followed by forest cover (contribution of 51.6% and importance of 6.1%) and precipitation of the coldest quarter (Bio19) (contribution of 2.7% and importance of 5.4%). Areas with very high potential distribution are concentrated around the Ta Dung peak, where temperatures are low, and the diurnal temperature range is large. The model achieved high accuracy with an AUC value of 0.964. The research results provide a basis for the conservation and development of Camellia furfuracea in the Dak Nong region and can be extended to other rare species in the future.
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