After more than 10 years managing state forestland under a social forestry program, community forestry’s farmer groups in Gunungkidul have shown differences in terms of their performance quality. The resource accesses (defined as the ability to benefit from certain resources) as stated by the theory of access (Ribot and Peluso, 2003) could affect their performance and subsequently their overall benefits from the social forestry program. This study aims to understand which configurations of resource access affecting the performance quality of forest farmer groups. In-depth interview and observation were carried out on the six forest farmer groups, covering the different degrees of success. The data were collected to measure the level of conditional variables (resource access) and outcome variable (the performance). The level of performances are indicated by forest conditions, institutional and business aspects. This paper applied Qualitative Comparative Analysis (QCA) with a four-value fuzzy set methodology to conduct a systematic cross-case comparison using fsQCA software to analyze the relationship between the condition and outcome variables. The results showed that two configurations of resource access profoundly explained the successful performance of the farmer groups. The first combination consists of access to knowledge, technology, financial, market, and social capital which can be found in Sedyo Rukun and Sido Maju II. Each of the access in the first combination contributes 30% towards the performance. The second combination consists of access to knowledge, technology, financial, labor, and social capital which explained the condition of Sedyo Lestari, Sedyo Makmur, dan Sido Dadi. Each of the access contributes 56% towards the performance. The prime implicant for successful quality performance is found in access to knowledge, indicating that farmer-to-farmer learning and extension services from third parties are required to be encouraged in social forestry programs.
Estimation of carbon storage in plantations is an alternative strategy to mitigate climate change. The carbon storage estimation model was developed by building a biomass allometric model with specific predictors. Utilization of cajuput plantations is harvesting the leave-twigs, which is different from the utilization of commons plantation forests that emphasize on timber forest products. Therefore, the objective of the research was to develop an allometric model of cajuput leave-twigs biomass. The study was conducted in KPH Yogyakarta on cajuput plants aged 23, 27, 31, 33, 40, 41, and 43 years. 210 samples were used to develop allometric models, and 60 samples were used as model validation materials. Leave-twigs biomass of cajuput (Y) was estimated with the predictors of the canopy height of cajuput (X1), mean quadratic of canopy diameter (X2), and mean quadratic of stem diameter (X3). The results showed that the allometric model of leave-twigs biomass of cajuput was Y = 3,597X1
0.961X2
0.145X3
0.247. The results of the model validation test resulted in R2
adj value of 0.428; the aggregate deviation was 9.76%; the mean deviation was 0.50%; the bias was - 2.16%, and RMSE was 0.47%. The allometric model was less accurate in predicting leave-twigs biomass of cajuput with the predictors of canopy height, canopy diameter, and stem diameter. Furthermore, it is important to build an allometric model of leave-twigs biomass by adding other predictors.
The State Forest Company of Indonesia launched its Company-Community Forestry Partnerships system on the island of Java in 2001 (PHBM system). We examined the PHBM's effects on the economic lives of participating villagers through a case study in Madiun, East Java. We specifically examined the potential and limits of the PHBM's contribution to villagers' livelihoods by quantitatively evaluating (i) the system's impact on household livelihoods and (ii) the continuity of its impact. Of households engaging in PHBM, 45.6% had more than half their arable land in the forest, and 10.0% of households had arable land only in the forest. The bulk of non-timber forest products, mostly fuelwood, was collected in the forest. Among villagers earning an income, 12.2% earned more than half via the PHBM, which was the only source of cash income for 2.2% of the engaged villagers. For some households, PHBM has helped significantly improve their livelihoods. However, the benefits derived from the PHBM were tempered by problems of quality, quantity, and continuity. The benefit of the system could be increased by providing preferential opportunities (to access farmland in the forest and/or cash income) to small-scale or impoverished farmers by improving the usage of intercropping land under planted trees, and promoting small business as a group enterprise.Discipline: Forestry and forest products Additional key words: Perum Perhutani, teak forest management
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