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      Identifikasi Indeks Tempat Tumbuh Tegakan Jati Plus Perhutani (JPP) di KPH Pemalang dan KPH Balapulang, Perhutani Divisi Regional Jawa Tengah

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      Date
      2022
      Author
      Kusumadewi, Dyah Bayu
      Rusolono, Teddy
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      Abstract
      Perhutani dengan Jati Plus Perhutani (JPP) menjadi salah satu jenis yang diunggulkan karena cepat tumbuh dan sudah banyak ditanam. Penelitian ini bertujuan menyusun persamaan pertumbuhan peninggi tegakan dan indeks tempat tumbuh untuk tegakan JPP di KPH Pemalang dan KPH Balapulang. Adapun pengukuran diambil pada tegakan JPP berumur 1-20 tahun dengan total 200 plot contoh. Dalam praktiknya, plot contoh dibuat proporsional menurut kelas umur dan kondisi tempat tumbuh yang diambil dari setiap petak tegakan JPP. Indeks tempat tumbuh (ITT) diduga dari peninggi tegakan. Model pertumbuhan peninggi dianalisis menggunakan analisis regresi non-linier dengan tiga model, yaitu Schumacher (1939), Lohrey (1987), Chapman-Richards (Chapman 1961 dan Richard 1959). Model Lohrey menjadi model yang digunakan untuk model pertumbuhan peninggi sekaligus model penduga ITT. ITT tumbuh dibuat dalam 3 kelas, yaitu ITT I untuk kualitas tempat tumbuh baik, ITT II untuk kualitas tempat tumbuh sedang, dan ITT III untuk kualitas tempat tumbuh jelek.
       
      Perhutani with Perhutani’s Teak Plus (JPP) is one type that is superior because it grows fast and has been widely planted. The purpose of this study is to compose the equation for the growth of dominan height and growth site index for JPP stands in KPH Pemalang and KPH Balapulang. The measurements were taken on JPP stands aged 1-20 years with a total of 200 sample plots. In practice, sample plots are made proportionally according to age class and site conditions from each JPP stand plot. The ITT is estimated from its dominan height. The growth model was analyzed using non-linear regression analysis using three models, namely Schumacher (1939), Lohrey (1987), Chapman-Richards (Chapman 1961 and Richard 1959). The Lohrey model is the model used for the growth model as well as the site index estimator model. The ITT is made in 3 classes, namely ITT I for good-growing quality, ITT II for moderate growing quality, and ITT III for bad-growing site quality.
       
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      http://repository.ipb.ac.id/handle/123456789/113173
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      • UT - Forest Management [3207]

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      Indonesia DSpace Group 
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