scholarly journals ANALISIS SIFAT KIMIA GAMBUT PASCA KEBAKARAN DENGAN BERBAGAI UPAYA PEMULIHAN HUTAN DI KAWASAN HUTAN DENGAN TUJUAN KHUSUS (KHDTK) TUMBANG NUSA, KALIMANTAN TENGAH

2020 ◽  
Vol 8 (1) ◽  
pp. 221-230
Author(s):  
Fytria Kurniasari ◽  
Syahrul Kurniawan ◽  
Lenny Sri Nopriani ◽  
Dony Rachmanadi

Peat land has an important role, function, and benefit for human life, biodiversity, and global climate. The peat swamp forest in Central Kalimantan was devastated to a very large extent, which addresses the restoration of peat swamp forests, has changed the characteristics of peat which contain physical, chemical, and biological characteristics. Peat recovery efforts carried out at the KHDTK Tumbang Nusa consist of natural succession and revegetation. The study aimed to analyze the chemical properties of peat soils in different types of post-fire forest protection and to assess the spatial variability of peat chemical properties in Forest Areas for Special Purposes (KHDTK) Tumbang Nusa, Desa Tumbang Nusa, Jabiren Raya District, Pulang Pisau Regency. The research plot consisted of forest restoration efforts, namely secondary forest, revegetation, and natural regeneration. Variable measured consisted of pH, total organic C, CEC, N, P, K, exchangeable K, Na, Ca, Mg, as well as ash content and water content. The results showed that secondary forest treatment was the best peat swamp forest restoration technique. Spatial variability sub-plots and sample points did not significantly affect the differences in chemical properties of the peat, but the differences in chemical properties of peat is the peat swamp forest was determined by restoration technique.

2019 ◽  
Vol 7 (3) ◽  
Author(s):  
Bayu Aji Prasetyo ◽  
Togar Fernando Manurung ◽  
Hafiz Ardian

Peatland is a weatland ecosystem formed by the accumulation of organic matter on the forest floor from the debris of the vegetation above it for a long time. This process occurs because of the slow rate of decomposition compared to the rate of deposition of organic matter on the wet/inundated forest floor. This study aims to determine the vegetation species diversity found in the peat swamp forest of the area of Gunung Ambawang protected forest in Kubu Sub-District of Kubu Raya Regency. The method used in this study is a plot method with the initial determination of the plot carried out through purposive sampling then the other plots were carried out by systematic sampling. Observation of forest compositionwas made in 5 (five) observation plots, with a length of 200 m, width of each plot being 20 m and distance between plots 100 m. The research found 39 species of vegetation dominated by medang species (Litsea sp) of the Lauraceae family, which is the most common vegetation found in the peat swamp forest area in the protected forest og Gunung Ambawang.Keywords: peat swamp forest, protection forest, species diversity


2019 ◽  
Vol 12 (1) ◽  
pp. 3 ◽  
Author(s):  
Hari A. Adrianto ◽  
Dominick V. Spracklen ◽  
Stephen R. Arnold ◽  
Imas S. Sitanggang ◽  
Lailan Syaufina

Indonesia has experienced extensive land-cover change and frequent vegetation and land fires in the past few decades. We combined a new land-cover dataset with satellite data on the timing and location of fires to make the first detailed assessment of the association of fire with specific land-cover transitions in Riau, Sumatra. During 1990 to 2017, secondary peat swamp forest declined in area from 40,000 to 10,000 km2 and plantations (including oil palm) increased from around 10,000 to 40,000 km2. The dominant land use transitions were secondary peat swamp forest converting directly to plantation, or first to shrub and then to plantation. During 2001–2017, we find that the frequency of fire is greatest in regions that change land-cover, with the greatest frequency in regions that transition from secondary peat swamp forest to shrub or plantation (0.15 km−2 yr−1). Areas that did not change land cover exhibit lower fire frequency, with shrub (0.06 km−2 yr−1) exhibiting a frequency of fire >60 times the frequency of fire in primary forest. Our analysis demonstrates that in Riau, fire is closely connected to land-cover change, and that the majority of fire is associated with the transition of secondary forest to shrub and plantation. Reducing the frequency of fire in Riau will require enhanced protection of secondary forests and restoration of shrub to natural forest.


Agric ◽  
2017 ◽  
Vol 29 (2) ◽  
pp. 103-112 ◽  
Author(s):  
Yondra Yondra ◽  
Nelvia Wawan

Natural peat swamp forests converted can alter the soil chemical properties. This study aims to determine the extent to which changes in soil chemical properties that occur after the conversion of land from peat swamp forest to palm oil plantation, HTI Acacia crasicarpa, and sago plantation and to know which types of plants are sustainable on peatlands. The results showed that soil pH increased after the change of land function. While the water content decreased. Chemical properties such as C-organic, ash content, CEC, alkaline saturation, macro nutrients (NPK) and bases can be changed also undergo changes after undergoing landuse changes, but no violations based on the law made by the government in pp No 25 of 2000 on the criteria of peatland damage and government regulation no. 150 of 2000 on the control of soil damage for biomass production. Sago is the most sustainable plant compared to others due to changes in soil chemical properties not too much different from other landuse although planted in the long term.


Jurnal Galam ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 108-122
Author(s):  
Muhammad Abdul Qirom ◽  
◽  
Tri Wira Yuwati ◽  
Syaifuddin Syaifuddin ◽  
◽  
...  

Peat 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


2006 ◽  
Vol 52 (1) ◽  
pp. 77-88 ◽  
Author(s):  
Tomoko Nakano ◽  
Wataru Takeuchi ◽  
Gen Inoue ◽  
Masami Fukuda ◽  
Yoshifumi Yasuoka

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