Biophysical Assessment of the Plant Bioresources of Northern Negros Natural Park, Negros Island, Philippines
国际木文化学会 | 478 view(s) | 2022/04/28
报告嘉宾：Aragon A. Dechimo Jr.
Until now, it is difficult to secure data sets on plant bioresources in Northern Negros Natural Park which are critical in planning for management initiatives and strategies for biodiversity conservation. This study aims to 1) assess the plant bioresources along the elevational gradient of Northern Negros Natural Park, 2) analyze the environmental factors influencing plant bioresource distribution. Standard vegetation analysis and household survey were utilized in the data collection processes. Secondary data from 67 the park office and that of the LGU were also availed of. Results showed 242species, 72 families of 78 tree species, 90 shrubs small trees and fern species, and 37 epiphytes. About 112 species had been reported threatened, 35 of which are Philippine endemics. There were three altitudinal zones identified using the cluster analysis: Zone I for plots within 643 to 1023 meter elevation; Zone II for plots found within 881 to 1182 meter elevation; and Zone III for plots within 985 to 1441 meter elevation. The elevation gradient sub-montane had the highest diversity (H'= 4.809) followed by the montane (H'= 3.37) and Lowland (H’ =3.528) respectively. Species abundance in each altitudinal zones and elevation gradients is not correlated with environmental factors (N, P, Altitude, Slope, and proximity to human disturbance) other than soil pH which had a negative correlation and potassium with positive correlation. These results provided important biophysical data in understanding the present landscape and in crafting strategic interventions and management plans to sustain biodiversity and ecosystem services.
Key words: Protected Area, Biophysical Assessment, Elevational Gradient, Plant Bioresource Distribution, Northern Negros Natural Park