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      Struktur dan Asosiasi Vegetasi pada Habitat Alami Shorea laevis Ridl. di Kalimantan

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      Date
      2026
      Jenis/Type
      Skripsi
      Subtype
      Undergraduate Theses
      Author
      Prastiono, Rafi Chaidir Kusumo
      Dwiyanti, Fifi Gus
      Rachmat, Henti Hendalastuti
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      Abstract
      Shorea laevis Ridl. merupakan jenis Dipterocarpaceae penting yang memiliki nilai ekologis dan ekonomi di hutan Kalimantan. Penelitian ini bertujuan menganalisis komposisi dan struktur vegetasi serta asosiasi S. laevis dengan spesies tumbuhan lain pada habitat alaminya di Kalimantan. Penelitian dilakukan pada empat populasi, yaitu Bukit Bangkirai, HCV PT Multi Kusuma Cemerlang, Taman Nasional Betung Kerihun–Danau Sentarum, dan PT Sarpatim, menggunakan 20 plot dengan metode purposive sampling. Analisis meliputi komposisi vegetasi, Indeks Nilai Penting (INP), kekayaan, keanekaragaman, kemerataan, serta asosiasi menggunakan uji Chi-square dan Indeks Ochiai. S. laevis memiliki INP 231,7 pada tingkat pohon dan 63,3 pada tingkat tiang. Keanekaragaman tingkat pohon tertinggi terdapat di TN Betung Kerihun–Danau Sentarum (H' = 3,29; Dmg = 8,01; J' = 0,95). Pada tingkat pohon, 80% pasangan menunjukkan asosiasi positif berkategori tinggi, yaitu Shorea laevis dengan Lithocarpus encleisocarpus, Rubroshorea parvifolia, Irvingia malayana, dan Palaquium stellatum, sedangkan seluruh pasangan tingkat tiang menunjukkan asosiasi positif berkategori rendah (Ochiai = 0,35).
       
      Shorea laevis Ridl. is an important Dipterocarpaceae species with ecological and economic values in the forests of Kalimantan. This study aimed to analyze vegetation composition and structure, as well as the association of S. laevis with other plant species in its natural habitat in Kalimantan. The study was conducted in four populations, namely Bukit Bangkirai, HCV PT Multi Kusuma Cemerlang, Betung Kerihun–Danau Sentarum National Park, and PT Sarpatim, using 20 plots established through purposive sampling. The analyses included vegetation composition, Important Value Index (IVI), species richness, diversity, evenness, and species association using the Chi-square test and Ochiai Index. S. laevis had an IVI of 231.7 at the tree stage and 63.3 at the pole stage. The highest tree-stage diversity was found in Betung Kerihun–Danau Sentarum National Park (H' = 3.29; Dmg = 8.01; J' = 0.95). At the tree stage, 80% of species pairs showed strong positive associations, specifically between Shorea laevis and Lithocarpus encleisocarpus, Rubroshorea parvifolia, Irvingia malayana, and Palaquium stellatum, while all pole-stage pairs showed weak positive associations (Ochiai = 0.35).
       
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      http://repository.ipb.ac.id/handle/123456789/180112
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      Copyright © 2020 Library of IPB University
      All rights reserved
      Contact Us | Send Feedback
      Indonesia DSpace Group 
      IPB University Scientific Repository
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      Universitas Jember Digital Repository