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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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Utilization of Plant Secondary Metabolites as Botanical Pesticides in Forest Plant Pests

The use of chemical pesticides is often carried out in excessive doses, so that this condition results in increased accumulation of pesticide residues in nature. The residue can kill non target organisms, there was an explosion of secondary pests and pest resistance. One effort to reduce the use of synthetic chemical pesticides is by substitution using botanical pesticides that are more environmentally friendly. Botanical pesticides that are easily biodegradable in nature, so it does not pollute the environment, it is relatively safe for humans and the presence of natural enemies. One of the most potential types of botanical pesticides is from the Meliaceae family, namely neem, mahogany, and suren. In this study, the content of secondary metabolites was tested for neem, mahogany and suren seeds. Toxicity properties against pests conducted through literature searches. The purpose of this study was to obtain information on the toxicity and content of secondary metabolite compounds from the three plant seed extracts against forest pests. The results showed that the extract of neem, mahogany and suren seeds contain compounds secondary metabolites from the saponins, tanins, flavonoids, alkoloids, and terpenoids. The compounds can be used as botanical pesticides to control pests of forest plants.
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Lichen as Bioindicator of Air Quality at Buffer Zone of Banjarbaru Town

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

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

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

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Carbon Stock Potential on Various Land Covers in Heath Forest in Liang Anggang, South Kalimantan