Analisis Tipologi Tutupan Vegetasi Sebagai Dasar Penyusunan Strategi Restorasi Di Area Iuphhk-Re Pt Reki

Abstract

Harapan rainforest situated in South Sumatera is a restoration area of PT REKI company that highly susceptible to land conversion. The problem faced in the effort of restoration is the restorated area that is too large and has not been tested any silvicultural techniques. The condition of land cover is the basic information that could be used as a reference in the preparation of restoration strategy. The study aimed to determine the level of damage, the condition of the ecosystem, appropriate silvicultural techniques, and plant species restoration priorities. The used methods were analysis of vegetation in 4 typologies (secondary forest, old shrub, young shurb, former akasia plantations). The order of area with the level of damage from the lowest to the highest were: the typology of secondary forest, old shurb, young shrub, and former akasia plantation, respectively. The typology of secondary forests had the highest value of diversity, richness, and evenness (H'>3, Dmg>5, and E>0.6). Relationship between former akasia plantations typology and another tipologies was not germane (euclidean distance> 3.31), and the relationship between seedling and trees in all typologies (with the exception of former akasia plantations) was very high (r> 0.9). Silvicultural techniques that could be done include eradicating A. mangium in the former akasia plantation and planting in the all typologies with the exception of secondary forest. The plants that could be used for restoration are Macaranga sp.

Does Gap Opening and Planting to Rehabilitate the Degraded Tropical Natural Forests Affect the Forest Composition and Structure?

“…The study resulted in a negative exponential equation of stand structure of trees with dbh ≥ 20 cm before gap opening and planting The stand density of various diameter size before and after gap opening and planting showed a decrease in the number of individuals along with the increase in diameter size. The same pattern was observed in many studies in Indonesia such as reported by Indrawan (2000), Nurfatma et al (2017), andPamoengkas et al (2019), in Malaysia reported by Siti Nurfaeiza et al ( 2022), Ahmad Rohaiza et al (2022), and in Ethiopia reported by Gebeyehu et al (2019).…”

Vegetation analysis and plant diversity in Pinus Jantho Forest (PJF) nature reserve, Aceh Besar

“…There are differences in the number of species in each region due to variations in environmental conditions. Different environmental characteristics will create different compositions of vegetation [15]. The seedlings and understorey have the greatest number which are 1028 in total, while trees had the lowest, with only 72 individuals (Figure 1).…”

Populasi, Sebaran Dan Potensi Ekonomi Sediaan Anakan Jenis Dipterokarpa Di Hutan Cigerendeng

“…Perhitungan sumberdaya alam (anakan pohon) dilakukan dengan mempertimbangkan harga bibit tanaman hutan di pasar dikurangi dengan biaya produksinya. Hopea mengarawan menjadi salah satu spesies kunci yang direkomendasikan untuk kegiatan pengkayaan tanaman karena jenis ini memiliki kelebihan cepat tumbuh dan lebih tahan naungan (Nurfatma, et al 2017) Hasil menunjukkan bahwa anakan tingkat pancang jenis hopea menyebar secara mengelompok sebagaimana ditunjukkan pada Tabel 4. Sedangkan untuk jenis shorea tidak dapat didefinisikan karena masing-masing jenis hanya ditemukan 1 individu dari 18 plot pengamatan.…”