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Species Diversity and the Variance of Carbon Potential on Differences Land Covers in South Kalimantan

Forest degradation leads to forest fragmentation and changes in land cover on a landscape. These changes vary considerably between landscapes. This research aims to determine the effect of land cover on the diversities and potential carbon storage. Parameters measured on 6 types of land cover including: old plantations, young plantations, old shrubs, bamboo, plantation forests, and secondary forests. The size of the plot was 1 hectare consisted of 16 observation sub-plots for the measurement of saplings, poles, and trees. Diversity parameters were measured such as species and density, also ecological indices such as diversity, dominance, and evenness of the species. The allometric model was used in predicting the biomass of each land cover. The results showed that secondary forests had considerable diversity of species at the level of poles and trees, while old plantations were arranged by the most diverse poles. This condition was indicated by a diversity index of more than 2.5 for all regeneration levels. Young and old plantation had a diversity index approaching secondary forest for poles so that forest management has been able to improve the species composition resembling their natural conditions. Based on the potential for carbon/biomass storage, old plantations and secondary forests had a potential of 200 tons/ha or close to carbon storage of 100 tons/ha. The results of diversity analysis showed the potential of carbon storage were affected by land cover for trees and total (P value <0.00). Average carbon storage at old plantation and secondary forest were not different with results of Duncan's test. Based on the parameter measurements, proper forest management will be able to increase and/or maintain the species diversity and carbon storage in certain landscapes.
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Carbon Storage of Superior Clonal Teak Stand in Special Purpose Forest Area of Wanagama, Special Region of YOGYAKARTA

A special-purpose forest area (KHDTK) is the forest area which the purposes are for teaching and research activities. One of the research conducted in KHDTK Wanagama was examining the planting of superior Teak from breeding (jati Mega). The growth of clonal teak data can also be assessed for its carbon stock. Hence, the purpose of this research was to determine the potential of biomass and carbon stock in the Jati Mega stands at KHDTK Wanagama, Yogyakarta. The research was carried out using a non-destructive method which used the allometric equation Bt = 0.0149(D2.H)1.0855. Carbon value was calculated as 50% of the total biomass. The results showed that after 17 years of planting Jati Mega, the stand density was 665 trees/ha, carbon storage was 59.98 Mg C/ha, and carbon uptake was 220.11 Mg/ha (CO2-eq). The total value of biomass, carbon stock, and carbon dioxide removal by Jati Mega stands at KHDTK Wanagama was in the medium category. The advantage of this research is for understanding the environmental services of jati Mega as a forest carbon stock. Information on forest carbon stock can be used as basic data for forest management as climate change mitigation.
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Diversity of Arbuscular Mycorrhiza Spores Under Shorea Balangeran (Korth.) Burck. Plantation as Bioindicator for the Revegetation Success

Arbuscular mycorrhiza is an association between fungi and plantroots. Arbuscular mycorrhiza has many functions such as improving the plant's growth, increasing the absorption of soil nutrients and enhancing the plants tolerant to extreme condition. Tumbang Nusa Forest for Specific Purpose is a peat swamp forests in Central Kalimantan that was severely burnt in 2015. Peat land rehabilitation program has started since 2016, by Shorea balangeran (Korth.) Burck planting. The aim of this research was to determine the diversity of arbuscular mycorrhiza spores under S. balangeran tree. The results showed that there was relationship between the age of S. balangeran and number of spores. Moreover, there were 4 spores of arbuscular mycorrhiza identified as Glomus sp., Gigaspora sp., Acaulospora sp. and Scutellospora sp
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Ethnomicology and Utilization Potential of Petir Fungi (Lignosus SP.) at KPH Sengayam, Kotabaru, South Kalimantan

Known locally as the the lightning mushroom or tiger milk mushroom, Lignosus sp. is well-known as mushroom. Lignosus sp. is categorized as nontimber forest product which has potential to be developed due to its advantages. Interview and literature review were carried out during this study to investigate the ecology, ethnomycology, and economic potential of Lignosus sp. Study result showed that currently the fungi Lignosus sp. in Kotabaru Regency can be found around the forest area that is administratively included in the Muara Urie and Buluh Kuning Villages. Local community has been used this fungi as traditional medicine, such as for cough medicine and postnatal care for mothers. In addition, local people harvest this fungi and sell it to middleman. However, the information of cultivation of this mushroom still limited particularly in South Kalimantan. Therefore, further studies need to be investigate.
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The Potentials of Forest Insects as Alternative Food

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The Fluctuation of Peatland Water Table at Tumbang Nusa, Central Kalimantan

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Enhancing Sengon Seedling's Growth by Using Indigenous Arbuscular Mycorrhiza From Tropical Peatland

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The Potentials of Forest Insects as Alternative Food

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The Fluctuation of Peatland Water Table at Tumbang Nusa, Central Kalimantan

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Enhancing Sengon Seedling's Growth by Using Indigenous Arbuscular Mycorrhiza From Tropical Peatland

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Allometric Model to Estimate Biomass and Carbon of Seedling in Pangarengan Mangrove Forest, Cirebon, West Java

The mangrove ecosystem in Pangarengan Village, Cirebon District, provides benefits for environmental services, including as carbon sinks and stores. In estimating the carbon storage of mangrove forests, in general, allometric equations are used. Unfortunately, the allometric equations currently available are still composed of the stages of growth of saplings, poles, and trees. Thus, the purpose of this study was to develop an allometric model for seedlings in mangrove forests. The research was conducted in June 2021 in the mangrove forest of Pangarengan Village, Cirebon District. The equipment that used in the study were calipers, measuring tape, digital scales, and crop shears. Research materials were mangrove seedlings of Rhizophora mucronata, Avicennia marina, and Sonneratia caseolaris. The best allometric model in estimating dried weight biomass with base diameter predictor is Y = 35,013 Dp1,860 (R2adj = 0,873; SEE = 0,472) using tip diameter predictor is Y = 249.573 Du2,276 (R2adj = 0,524; SEE = 0,710). While the allometrics for estimating the carbon content of seedlings were Y = 5,835 Dp1,804 (R2adj = 0,831; SEE = 0,528) and Y = 35,750 Du2,107 (R2adj = 0,607; SEE = 0,805). Thus, the power allometric model with base diameter predictor was quite good in estimating dried weight biomass and seedling carbon content in the mangrove forest of Pangarengan Village.
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Carbon Stock Potential on Various Land Covers in Heath Forest in Liang Anggang, South Kalimantan

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The Effect of Flooding and Light Competition on the Planting Success of Degraded Tropical Peatland

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The Carbon Stock as Indicator of Peatland Recovery After Fire in Central Kalimantan

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Lichen as Bioindicator of Air Quality at Buffer Zone of Banjarbaru Town