Electronic Theses and Dissertation

Danau Laut Tawar (DLT), Kabupaten Aceh Tengah, merupakan danau vulkanis dengan nilai ekologis tinggi yang mengalami tekanan akibat alih fungsi lahan di kawasan riparian. Perubahan tersebut berpotensi menurunkan fungsi vegetasi sebagai pengendali erosi, penyaring polutan, dan penyedia habitat fauna. Penelitian ini bertujuan menginventaris flora yang terdapat di sekeliling kawasan Danau Laut Tawar Kabupaten Aceh Tengah, mendata fenologi (masa berbunga dan berbuah) spesies flora, serta menentukan status dan strategi konservasi flora di kawasan Danau Laut Tawar. Metode penelitian menggunakan survei untuk inventarisasi spesies flora dan fenologinya, status konservasi berdasarkan pedoman IUCN Red List dan strategi konserinya. Hasil penelitian diketahui bahwa dijumpai 131 spesies flora dari 48 familia. Tipe bunga yang dominan adalah simosa dan rasemosa beserta variasinya seperti spika, panikula, kapitulum, spadiks, dan spikula . Tipe buah yang banyak ditemukan adalah kapsula, drupa, dan bakka. Berdasarkan status konservasi, sebagian besar spesies termasuk kategori Least Concern (76,79%), sementara kategori Data Deficient, Vulnerable, dan Endangered masing-masing sebesar 14,29%, 5,36%, dan 3,57%. Strategi konservasi untuk spesies dengan kategori Least Concern dilakukan melalui konservasi in situ berupa perlindungan vegetasi riparian, pengendalian alih fungsi lahan, dan pemantauan populasi secara berkala guna menjaga kestabilan populasi di habitat alaminya. Kesimpulannya bahwa hasil penelitian memberikan data dasar mengenai spesies flora di kawasan DLT yang dapat digunakan sebagai dasar pengelolaan dan strategi konservasi ekosistem danau secara berkelanjutan dimasa mendatang.

Kata kunci: Danau laut tawar, fenologi, flora, strategi konservasi, vegetasi

Lake Laut Tawar (LLT), Central Aceh Regency, is a volcanic lake with high ecological value that is experiencing pressure due to land-use conversion in riparian areas. These changes have the potential to reduce the function of vegetation as erosion control, pollutant filtration, and wildlife habitat provider. This study aimed to inventory the flora surrounding the LLT area in Central Aceh Regency, document the phenology (flowering and fruiting periods) of plant species, and determine the conservation status and conservation strategies of the flora in the LLT area. The research method employed surveys for the inventory of flora species and their phenology, while conservation status was determined based on the IUCN Red List guidelines and corresponding conservation strategies.The results showed that 131 flora species belonging to 48 families were identified. The dominant flower types were cymose and racemose inflorescences, along with their variations such as spikes, panicles, capitula, spadices, and spikelets. The most commonly found fruit types were capsules, drupes, and berries. Based on conservation status, most species were categorized as Least Concern (76.79%), while the categories of Data Deficient, Vulnerable, and Endangered accounted for 14.29%, 5.36%, and 3.57%, respectively. Conservation strategies for species categorized as Least Concern are carried out through in situ conservation measures, including riparian vegetation protection, control of land-use conversion, and periodic population monitoring to maintain population stability in their natural habitats. In conclusion, this study provides baseline data on flora species in the LLT area that can serve as a foundation for ecosystem management and sustainable lake conservation strategies in the future. Keywords: Lake Laut Tawar, phenology, flora, conservation strategy, vegetation