Tri Wira Yuwati
Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Banjarbaru

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Journal : Jurnal Galam

The carbon stock as indicator of peatland recovery after fire in Central Kalimantan Muhammad Abdul Qirom; Tri Wira Yuwati; Syaifuddin Syaifuddin
Jurnal GALAM Vol 1, No 2 (2021): Jurnal GALAM, Vol.1 No.2 2021
Publisher : Jurnal GALAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/glm.2021.1.2.108-122

Abstract

ABSTRACTPeat swamp forest fire was the main cause of the huge carbon stock loss. Forest recovery after fire took a huge cost and long period of time. The aim of this research was to determine the carbon stock on various peat land condition and management intervention and utilize it as bio-indicator for degraded peat swamp forest recovery after fire.  The data was collected from three location representing three sites: after 1997 fire (ex 1997), unburnt secondary forest and area that was severely burnt in 2005 but already re-planted. Measurement was carried out on the vegetation carbon stock namely seedlings, saplings, poles and trees. The carbon stock was determined using 5 sampling plots on secondary forest and 6 plots on other sites. Carbon counting was using allometric equation. The result showed that the carbon stock was affected by the various type and management intervention of the sites especially at the rehabilitation site.  The carbon stock of ex-1997 and secondary forest was not significantly different on all stages of vegetation including the total number. The carbon stock on ex-1997 and secondary forest was 258, 95 Mg/Ha and 254,36 Mg/Ha, respectively. The condition showed that ex-1997 site had the ability to naturally recovered. The rate of recovery can be approached with carbon stock estimation as indicator for peatland recovery after fire. The indicator can be used on sites with no species diversity requirements as recovery factor such as protected or conservation areas. Keywords: natural, allometric, degradation, indicator
Diversity of arbuscular mycorrhiza spores under Shorea balangeran (Korth.) Burck. plantation as bioindicator for the revegetation success Tri Wira Yuwati; Wanda Septiana Putri
Jurnal GALAM Vol 1, No 1 (2020): Jurnal GALAM, Vol.1 No.1 2020
Publisher : Jurnal GALAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/glm.2020.1.1.15-26

Abstract

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
Lichen as bioindicator of air quality at buffer zone of Banjarbaru town Rida Yuliani; Witiyasti Imaningsih; Tri Wira Yuwati
Jurnal GALAM Vol 2, No 1 (2021): Jurnal Galam Vol. 2 No.1 2021
Publisher : Jurnal GALAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/glm.2021.2.1.54-65

Abstract

ABSTRACTAir pollution is one of the main issues faced by urban areas. Therefore, morphological characteristic and colony coverage of lichen growing at different scale air-polluted area could become as a bioindicator of their air quality. This research aims to determine the condition of lichen in spots located at near and far from the main road (width ± 29 meter) in urban area at Banjarbaru town. This research used descriptive method with purposive sampling technique. Sample were obtained from 2 plots those were far and near the main road, each plot represented by samples from 5 different trees (densed canopy with minimum DBH at 25 cm). Lichens were taken at 50-150 cm above ground level using 20x20 cm quadrant plastic frame. Observation variables include the number and shape of colonies, color and type of thallus, and percentage of thallus cover. We determined 13 colonies from spots far from the main road (500-600 meter from main road). Lichen dominated by green to bluish color, thallus consist of crustose and foliose, and the average percentage of thallus cover was 28.01%. While from that near the main road (14-250 meter from main road), we determined 14 colonies predominantly consisted of white crustose lichens, and the average percentage of thallus cover was 10.01%. Traffic intensity showed to have significant effect on lichens community. The main difference can be seen from morphology and colony coverage. Based on this result, lichen can be used as bioindicator of air quality, especially air pollution caused by motorized vehicles.