Jurnal Wasian

67 - 78

Authors: Ridwan Fauzi, Muhamad Yusup Hidayat, Grace Serepina Saragih

This study aims to identify macroscopic fungi species in Kelimutu National Park. The method used in this study was a combination of Visual Encounter Survey method in 5 tracking lines at altitude between 1,000 - 1,700 meters above sea level. Based on the results of the survey, there were 46 species of macroscopic fungi from 23 families in Kelimutu National Park. Some species of macroscopic fungi have the potential to be cultivated as food and medicinal ingredients. The existence of this macroscopic fungus has also given a special characteristic of Kelimutu because it only grows at an altitude between ± 1,045 - 1,616 meters above sea level.

89 - 104

Authors: Muhammad Abdul Qirom

Estimation model of tree volume must be high in accuracy and precisions to estimate stand potential precisely. This paper determines and validates the estimation model of Shorea balangeran volume grown in Central Kalimantan, Indonesia. There were three phases of model development which include 52 trees for model progress, 23 trees for model validation, and 10 trees for external model validation. The calculation model used linear and non-linear models with diameter, diameter and height, and diameter and height combination as independent variables. The criteria of the best model was determined by statistical analyses such as coefficient determination, relative and aggregative deviation, bias, precisions and accuracy of estimation, AIC (Akaike’s Information Criterion). The result of the study showed that the model with diameter as single variable was not complied with the selected best model criteria (aggregative deviation; AD< 1 % and relative deviation: RD< 8 %). The addition of tree height on model estimation increased the coefficient determination of 6.54% and the model with diameter and height as independent variable was satisfied with the criteria (AD and RD criteria). The best model of Balangeran was with coefficient determination of 89.77 %. However, the best model was not applicable for other sites with different stand characteristics

115 - 125

Authors: Aditya Hani, Eva Fauziyah, Tri Sulistyawati Widyaningsih, Devy Priambodo Kuswantoro

Some people still thinks that bamboo has a low economic value. Many bamboo plants in the community are removed or replaced with other commodities. Sukaharja Village in Ciamis Regency is one of the centers that produce of bamboo. The community feels the economic benefits of the existence of the bamboo, so the existence of bamboo plants is still sustained. Bamboo management in Sukaharja Village can be used as a learning for bamboo farmers in other places. The study aims to determine the potential of agroforestry bamboo in Sukaharja Village. Potency of bamboo was collected by survey method. The observation plot was made as many as 39 plots. Vegetation observation and measurement was done by census (100 %) in all selected land area so that all types of compiler can be known. Parameters recorded/measured were bamboo species, number of clumps, number of tillers, number of young stems, number of old stems, stem height and stem circumference. Data related to socioeconomic obtained through interview. Respondents interviewed was chosen purposively by 69 respondents. Secondary data was obtained from literature study and data from agencies that are related to research objectives, such as District Forestry office, village office, and Agricultural Extension Agency, Fisheries, Livestock and Forestry. Bamboo in Sukaharja Village has a potential of 765 bamboo stems per hectare with 53 % composition of young bamboo and 47 % old bamboo, dominated by 92 % Gigantlochoa apus. Bamboo in Sukaharja village can be sustainable because it is cultivated with agroforestry pattern. The pattern of bamboo agroforestry in Sukaharja village community is a) Bamboo + wood, b) Bamboo + HHBK, c) Bamboo + plantation crop, d) Bamboo + horticulture.