PENDUGAAN VOLUME BATANG BEBAS CABANG POHON BERDIRI JATI PLUS PERHUTANI UMUR 6 SAMPAI 11 TAHUN DI KPH MADIUN
Jati plus perhutani (JPP) produced by Perhutani is superior teak. It is derived from tree breeding programs. JPP from Clonal Seed Orchard (CSO) was developed in Madiun Forest District in 2002. However, quantitative information about the JPP stands potency in KPH level is inadequate. The aim of the r...
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| Main Authors: | , |
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| 格式: | Theses and Dissertations NonPeerReviewed |
| 出版: |
[Yogyakarta] : Universitas Gadjah Mada
2014
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| 在線閱讀: | https://repository.ugm.ac.id/132568/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=73103 |
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| 機構: | Universitas Gadjah Mada |
| 總結: | Jati plus perhutani (JPP) produced by Perhutani is superior teak. It is
derived from tree breeding programs. JPP from Clonal Seed Orchard (CSO) was
developed in Madiun Forest District in 2002. However, quantitative information
about the JPP stands potency in KPH level is inadequate. The aim of the research
is to obtain an estimated tree volume model for JPP with the age between 6 to 11
years. It is expected that this information can be used to support forest planning,
sustainability and development strategic in the management of JPP forest.
The research was conducted in 5 Sub Forest Districts (BKPH) of Madiun
Forest District (KPH Madiun) in Perhutani Unit II of East Java in September 2013
for two weeks. The research used dominant trees in 6-11 years JPP stands as the
sample located in the best compartments. The measured parameters of each trees
is tree height, crown base height, milestones diameter, diameter at breast height,
and diameter measurements which measured every 2 meters up to crown base. To
compose the clear bole volume model used 480 samples of trees with variables
such as stand age.
The result showed that S model can be used to estimate the volume of 6 to
11 years JPP stands and to describe the growth model at young stands. S model in
mathematic form is :
V= e(-0.0003 + -20.8319/x)
with a standard error of the estimate 0.100, the coefficient determination is (R2)
0.977 and the coefficient of corrected determination is (Radj2) 0,972. The value
showed that the equational model are significant and can be used to estimate the
clear bole volume of JPP standing trees. |
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