Daur Optimal Tegakan Gmelina Pada Dua Proyek Karbon: Memperpanjang Daur Dan Aforestasi

Indrajaya, Yonky; Astana, Satria

doi:10.20886/jpsek.2016.13.3.145-154

Cited by 2 publications

(1 citation statement)

References 12 publications

(17 reference statements)

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“…Indrajaya (2013) examines the determination of the optimal financial rotation of Sengon stands using the Faustmann scenario. Indrajaya and Astana (2016) conducted a study on the optimal rotation. It was analysis of Gmelina stands on two carbon projects through Faustmann method that had modified for maximizing profits by sources of income from wood and carbon sequestration environmental services.…”

Section: Introductionmentioning

confidence: 99%

Optimization Pine Plantation Forest Management in Kediri FMU Regional Division II East Java

Prasetyo

Saleh

Soedomo

2017

jtfm

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Pine forest management today has not already reached its optimal state. The abnormal pine stand structure will cause a decrease in the production of pine resin. This study aimed to determine the optimal rotation of pine plantation forest and formulated the harvest scheduling to ensured optimal resin production. The determination of optimal rotation was conducted by modifying the Faustman formula to be applied on the condition in forest management in Perhutani. Simulation optimization of harvest scheduling was conducted by linear programming. Optimal rotation of pine forest plantation consists of timber rotation and resin rotation. The highest net present value of timber was obtained at 25 year cycles and the highest net present value of the resin was obtained at 35 year cycles. The inclusion of resin benefit was resulting in lengthening the optimal rotation age. The abnormal stand structure was causing the fluctuations of pine resin production. Thus, the efforts to improve it was by applying the harvest scheduling framework. This study concluded that harvest scheduling which conducted over eight periods has made the abnormal stand structure into the normal forest condition. The existence of normal forest condition led to the certainty of pine resin production sustainability.

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Section: Introductionmentioning

confidence: 99%

Optimization Pine Plantation Forest Management in Kediri FMU Regional Division II East Java

Prasetyo

Saleh

Soedomo

2017

jtfm

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Intercropping Short Rotation Timber Species with Teak: Enabling Smallholder Silviculture Practices

Sudomo

Maharani

Swestiani

et al. 2021

Forests

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Community forest management for timber production requires short- and long-rotation companion species to fulfill the demands of the timber industry, improve farmer welfare and maintain environmental sustainability. Four species (Falcataria moluccana, Neolamarckia cadamba, Acacia mangium and Gmelina arborea) were tested as short-rotation timber crop companion species for teak (Tectona grandis) on dry-rocky soil in the Gunungkidul community forest. The selection of short-rotation timber species was based on growth performance and survival rate at the teak site. Two years after planting, the viability of G. arborea (87.3%) and A. mangium (78.2%) was significantly (p < 0.05) higher than that of N. cadamba (40.6%) and F. moluccana (18.0%). G. arborea and N. cadamba achieved the best growth in terms of height, diameter, basal area, and volume, with the growth of A. mangium and F. moluccana being significantly inferior. Gmelina arborea has the ability to adapt to teak sites, grow well, and accompany teak. Neolamarckia cadamba demonstrated good growth with potential as a teak companion, and it demonstrated limited drought tolerance on the dry-rocky soils of the study sites. Acacia mangium had a high survival but produced slow growth, indicating that it required an advance evaluation in future years. Falcataria moluccana has different growing site requirements to teak so the performance was relatively poor at the study site. This mixed pattern provides benefits to farmers through commercial thinning of short rotations species, 5–8 years post establishment. Thinning operations will also increase the productivity of residual teak stands. The diversification of timber species in community forests can provide earlier returns, enabling the adoption of silviculture management by smallholders and communities.

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Daur Optimal Tegakan Gmelina Pada Dua Proyek Karbon: Memperpanjang Daur Dan Aforestasi

Cited by 2 publications

References 12 publications

Optimization Pine Plantation Forest Management in Kediri FMU Regional Division II East Java

Optimization Pine Plantation Forest Management in Kediri FMU Regional Division II East Java

Intercropping Short Rotation Timber Species with Teak: Enabling Smallholder Silviculture Practices

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