scholarly journals KARAKTERISTIK LAPISAN ACROTELM DAN CATOTELM PADA GAMBUT TRANSISI DAN PEDALAMAN The Characteristic of the Acrotelm and Catotelm on the Transition and Inland Peat

AgriPeat ◽  
2019 ◽  
Vol 20 (02) ◽  
Author(s):  
Admin Journal
Keyword(s):  
Land Cover ◽  
Physical Properties ◽  
Fiber Content ◽  
Forest Land ◽  
Organic C ◽  
Central Kalimantan ◽  
Forest Land Cover ◽  
The Relationship ◽  
Peat Properties ◽  
Black Color

ABSTRACTSince 1990s, the conversion of peatlands in Central Kalimantan from forest land cover and shrubs toagricultural land can cause the change of the characteristics of the peat. For this reason, this researchon the condition of peat properties is needed, especially the physical properties as a reference materialin the management of sustainable peatlands. This study was aims to determine the characteristics ofpeat under several land cover in the transition peat and the inland peat as well as the relationshipbetween the parameters. The research was conducted in September - December 2017, where located inWest Kanamit Village, Maliku Subdistrict and Taruna Jaya Village, Jabiren Raya Subdistrict, PulangPisau Regency, Central Kalimantan Province. The laboratory analysis at the Laboratory of Agronomyand the Laboratory of Analytical, University of Palangka Raya. Sampling in this study was uses aprofile with the size of one m2. This study was uses regression analysis and correlation methods thatare conducted to determine the pattern of relationships and the relationship between the variables ofthe physical properties of the peat. The results of the study indicate there is a similarity in the physicalproperties of the transition peat of West Kanamit Village and the inland peat of Taruna Jaya Village.The level of decomposition of peat from all locations was sapric with black to reddish black color. Theaverage values of the peat in West Kanamit Village are bulk density (0.09-0.18 g cm-3), water content(451.52-1,013.18%), fiber content (7.62-14.60%), ash content (1.73-26.15%), and organic C (42.83-57.00%). The results of the study in Taruna Jaya Village had the average values as follows as bulkdensity (0.10-0.17 g cm-3), moisture content (361.79-846.99%), fiber content (7.62-14.60 %), ashcontent (0.84-2.69%), and organic C (56.44-57.52%). Hydrophobicity in all study locations were 1.1-3.4 seconds with the WDPT method and the ratio of 0.06-0.49 with the FTIR methods. Moreover, therelationship between the peat characteristics shows a positive relationship and a negative relationship.Keyword : Acrotelm, Catotelm, Transition, Inland Peat

scholarly journals SIFAT FISIK GAMBUT PEDALAMAN PADA LABORATORIUM ALAM HUTAN GAMBUT SEBANGAU, KALIMANTAN TENGAHThe Physical Properties Of Inland Peat In Natural Laboratory Of Peat Swamp Forest (LAHG) Sebangau, Central Kalimantan

2021 ◽  
Vol 15 (2) ◽  
pp. 216
Author(s):  
Yonodius Paskalis Bay ◽  
Nina Yulianti ◽  
Suparno Suparno ◽  
Fengky Florante Adji ◽  
Zafrullah Damanik ◽  
...  
Keyword(s):  
Hydraulic Conductivity ◽  
Moisture Content ◽  
Land Cover ◽  
Physical Properties ◽  
Bulk Density ◽  
Black Soil ◽  
Fiber Content ◽  
Soil Color ◽  
Central Kalimantan ◽  
Peat Area

Indonesia has the largest peat area in the tropical zone, which estimated about 21 million ha, with a percentage of 70% of the peat area in Southeast Asia and 50% of the world's tropical peatlands. This study aims to evaluate the physical properties of soil in each layer of soil and land cover in inland peat swamp forests in LAHG in Central Kalimantan. The research used the profile method (minipit) measuring 120 cm x 120 cm. Each location is given 3 plots on 2 (two) land cover  namely forest and burnt area. The research location is in LAHG. This research was conducted in July-December 2020. Samples were analyzed at the Banjarbaru Research and Development Laboratory. The parameters observed were bulk density, moisture content, fiber content, soil color, infiltration, and hydraulic conductivity. The research data were analyzed statistically by means of regression and correlation analysis. The results showed that the study of the physical properties of inland peat soil in the forest had bulk density ranging from 0.10 to 0.15 g / cm-3, moisture content 541.18-910.00%, fiber content 8-40%, infiltration -0 , 58-29.27 ml / hour, hydraulic conductivity 2.4-66.6 cm / hour with reddish black soil color. Whereas on burnt land, bulk density ranged from 0.10 to 0.15 g / cm-3, moisture content was 500.00-916.67%, fiber content was 12-52%, infiltration was -3.19-60.99 ml. / hr, hydraulic conductivity 2.4-30.6 cm / hr with dark black soil color. The study relationship pattern shows positive and negative.

scholarly journals The Analysis of Forest Land Cover Change And Area Determination of Land Rehabilitation Based on Geographic Information System in Magelang Regency

2018 ◽  
Vol 73 ◽  
pp. 03004
Author(s):  
Lidya Ernawati ◽  
Sutrisno Anggoro
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Land Cover ◽  
Land Cover Change ◽  
Geographic Information ◽  
Forest Land ◽  
Land Rehabilitation ◽  
Forest Land Cover ◽  
Area Determination

Population increased has consequences for the economic development of land demands for agriculture, settlement and other infrastructure. This resulted the change of area land cover which impact on the climate change and decline the environmental quality. Therefore, it is necessary to improve the environment through the land rehabilitation activities. The analysis of land cover change is needed as the first step to identify areas targeted by the land rehabilitation. Geographic information system is used as a spatial based on the appropriate determination of rehabilitation activities

scholarly journals Linking Changes in Land Cover and Land Use of the Lower Mekong Basin to Instream Nitrate and Total Suspended Solids Variations

2020 ◽  
Vol 12 (7) ◽  
pp. 2992 ◽  
Author(s):  
Kongmeng Ly ◽  
Graciela Metternicht ◽  
Lucy Marshall
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Land Cover ◽  
Suspended Solids ◽  
Total Suspended Solids ◽  
Mekong River ◽  
Forest Land ◽  
Lulc Changes ◽  
Correlation Analyses ◽  
Forest Land Cover

Population growth and economic development are driving changes in land use/land cover (LULC) of the transboundary Lower Mekong River Basin (LMB), posing a serious threat to the integrity of the river system. Using data collected on a monthly basis over 30 years (1985–2015) at 14 stations located along the Lower Mekong river, this study explores whether spatiotemporal relationships exist between LULC changes and instream concentrations of total suspended solids (TSS) and nitrate—as proxies of water quality. The results show seasonal influences where temporal patterns of instream TSS and nitrate concentrations mirror patterns detected for discharge. Changes in LULC influenced instream TSS and nitrate levels differently over time and space. The seasonal Mann–Kendall (SMK) confirmed significant reduction of instream TSS concentrations at six stations (p < 0.05), while nitrate levels increased at five stations (p < 0.05), predominantly in stations located in the upper section of the basin where forest areas and mountainous topography dominate the landscape. Temporal correlation analyses point to the conversion of grassland (r = −0.61, p < 0.01) to paddy fields (r = 0.63, p < 0.01) and urban areas (r = 0.44, p < 0.05) as the changes in LULC that mostly impact instream nitrate contents. The reduction of TSS appears influenced by increased forest land cover (r = −0.72, p < 0.01) and by the development and operation of hydropower projects in the upper Mekong River. Spatial correlation analyses showed positive associations between forest land cover and instream concentrations of TSS (r = 0.64, p = 0.01) and nitrate (r = 0.54, p < 0.05), indicating that this type of LULC was heavily disturbed and harvested, resulting in soil erosion and runoff of nitrate rich sediment during the Wet season. Our results show that enhanced understanding of how LULC changes influence instream water quality at spatial and temporal scales is vital for assessing potential impacts of future land and water resource development on freshwater resources of the LMB.

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