Electronic Theses and Dissertation

Hutan lindung berperan penting dalam menjaga sistem penyangga kehidupan, seperti pengaturan tata air, pencegahan banjir, pengendalian erosi, pencegahan intrusi air laut, dan menjaga kesuburan tanah. keanekaragaman hayati di hutan adalah kekayaan alam yang berharga dan memberikan banyak manfaat. penelitian ini bertujuan menganalisis indeks keanekaragaman dan indeks kemerataan pada hutan primer, hutan sekunder, dan agroforestri di hutan lindung kecamatan jagong jeget dan kecamatan pegasing, kabupaten aceh tengah. metode pengambilan sampel dilakukan dengan purposive sampling. objek yang diamati pada penelitian ini dibagi menjadi tiga kategori/strata tumbuh yaitu pohon, semai dan tumbuhan bawah. untuk kategori pohon merupakan tumbuhan yang memiliki diameter >=5 cm dan diamati pada plot berukuran 20m x 20m. untuk strata tumbuh semai merupakan tumbuhan yang memiliki diamater

Protected forests play a crucial role in maintaining life support systems, such as water management, flood prevention, erosion control, prevention of seawater intrusion, and maintaining soil fertility. Biodiversity in forests is a valuable natural resource that provides numerous benefits. This study aims to analyze the diversity index and evenness index in primary forests, secondary forests, and agroforestry in protected forests in Jagong Jeget District and Pegasing District, Central Aceh Regency. The sampling method was conducted using purposive sampling. The objects observed in this study were divided into three categories/growth strata: trees, seedlings, and understory plants. For the tree category, the observed plants were those with a diameter of ≥5 cm and were studied in 20m x 20m plots. For the seedling growth stratum, plants with a diameter of