Analisis Sebaran dan Kesesuaian Habitat Amorphophallus prainii Menggunakan Pemodelan Spasial Maximum Entropy di Provinsi Sumatera Utara

Abstract

Amorphophallus prainii is a plant with potential as a source of food and medicine, but its population is threatened by land use change and deforestation. This study aims to analyze the suitability of habitat and vegetation composition around the habitat of A. prainii in North Sumatra Province, particularly around the Deli River Basin. MaxEnt modeling with an AUC value (0.95) shows that the main factors affecting the distribution of A. prainii habitat are soil type, altitude, distance from rivers, and land cover. Areas with the highest habitat suitability include Deli Serdang Regency, Simalungun Regency, Langkat Regency, and Binjai City. Vegetation analysis was conducted at various elevations in the Deli River Basin. The results showed that Amorphophallus prainii was found at elevations of 60-754 m above sea level. At an elevation of 60 m above sea level in Durin Tonggal Village (secondary forest), 79 vegetative individuals of A. prainii were found. At an altitude of 115 meters above sea level in Sugau Village (oil palm plantation), 88 vegetative individuals of A. prainii were found. At an altitude of 200 meters above sea level in Namo Pinang Village (oil palm plantation), 66 vegetative individuals and 5 generative individuals of A. prainii were found. At an altitude of 315 meters above sea level in Bingkawan Village (agroforestry), 44 vegetative individuals of A. prainii were found. At an altitude of 423 meters above sea level in Sembahe Village (agroforestry), 21 vegetative individuals of A. prainii were found. At an altitude of 560 meters above sea level in Tanjung Beringin Village (agroforestry), 18 vegetative individuals of A. prainii were found. At an altitude of 655 meters above sea level in Rumah Pil-Pil Village (agroforestry), 17 vegetative individuals of A. prainii were found. At an altitude of 754 meters above sea level in Durin Serugun Village (oil palm plantation), 8 vegetative individuals of A. prainii were found. These findings provide a scientific basis for conservation efforts and protection of the habitat of A. prainii in North Sumatra.