scholarly journals Dampak Dinamika Muka Air Tanah pada Besaran Dan Laju Emisi Carbon Di Lahan Rawa Gambut Tropika

2018 ◽  
Vol 14 (1) ◽  
pp. 15-30
Author(s):  
L. Budi Triadi ◽  
Fengky F. Adji ◽  
Yudi Lasmana
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Ground Water ◽  
Emission Rate ◽  
Drainage System ◽  
Fire Risk ◽  
System Planning ◽  
Scientific Methods ◽  
Central Kalimantan ◽  
Co2 Equivalent

Drainage of peatlands will lower the water table, decompose the organics matter and increases the fire risk. Therefore knowledge of C emission rate is very important for drainage system planning, in order to preservepeat. Scientific methods that used in this study: calculation of thickness/ depth of the peat, peat volume, oxidized peat volume, C dry peat weight and CO2 equivalent. The rate of emission C is calculated on the basisof emission C and subsidence time. Furthermore, the emission rate C (Mton CO2/ yr) is calculated based on 4 (four) model/ scenario concepts, i.e: actual/ existing condition, plantation, canal blocking and canal blocking with reforestation. This activity was conducted in Sei Ahas, Kapuas, Central Kalimantan and Sungai Buluh, Tanjung Jabung Timur, Jambi. Based on research, it was found that land use change will greatly affect the change of ground water level of peat that contributes to increases the emission of C to the atmosphere.

scholarly journals Link between Land Use and Flood Risk Assessment in Urban Areas

Proceedings ◽  
2020 ◽  
Vol 30 (1) ◽  
pp. 62
Author(s):  
Zahra Kalantari ◽  
Johanna Sörensen
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Green Infrastructure ◽  
Flood Risk ◽  
Urban Areas ◽  
Land Use Changes ◽  
Drainage System ◽  
Property Owners ◽  
Pluvial Flooding ◽  
The Impact

The densification of urban areas has raised concerns over increased pluvial flooding. Flood risk in urban areas might increase under the impact of land use changes. Urbanisation involves the conversion of natural areas to impermeable areas, causing lower infiltration rates and increased runoff. When high-intensity rainfall exceeds the capacity of an urban drainage system, the runoff causes pluvial flooding in low-laying areas. In the present study, a long time series (i.e., 20 years) of geo-referenced flood claims from property owners has been collected and analysed in detail to assess flood risk as it relates to land use changes in urban areas. The flood claim data come from property owners with flood insurance that covers property loss from overland flooding, groundwater intrusion through basement walls, as well as flooding from drainage systems; these data serve as a proxy of flood severity. The spatial relationships between land use change and flood occurrences in different urban areas were analysed. Special emphasis was placed on examining how nature-based solutions and blue-green infrastructure relate to flood risk. The relationships are defined by a statistical method explaining the tendencies whereby land use change affects flood risk.

Effects of agricultural land-use change and forest fire on N2O emission from tropical peatlands, Central Kalimantan, Indonesia

2006 ◽  
Vol 52 (5) ◽  
pp. 662-674 ◽  
Author(s):  
Fumiaki Takakai ◽  
Tomoaki Morishita ◽  
Yasuyuki Hashidoko ◽  
Untung Darung ◽  
Kanta Kuramochi ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Forest Fire ◽  
Agricultural Land ◽  
N2o Emission ◽  
Agricultural Land Use ◽  
Central Kalimantan ◽  
Tropical Peatlands

Flow and sediment yield simulations for Bukit Merah Reservoir catchment, Malaysia: a case study

2012 ◽  
Vol 66 (10) ◽  
pp. 2170-2176 ◽  
Author(s):  
Zorkeflee Abu Hasan ◽  
Nuramidah Hamidon ◽  
Mohd Suffian Yusof ◽  
Aminuddin Ab Ghani
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Ground Water ◽  
Sediment Yield ◽  
Assessment Tool ◽  
Water Source ◽  
Yield Increase ◽  
Average Water ◽  
Reservoir Watershed

Bukit Merah Reservoir is the main potable and irrigation water source for Kerian District, Perak State, Malaysia. For the past two decades, the reservoir has experienced water stress. Land-use activities have been identified as the contributor of the sedimentation. The Soil and Water Assessment Tool (SWAT) was used to simulate and quantify the impacts of land-use change in the reservoir watershed. The SWAT was calibrated and two scenarios were constructed representing projected land use in the year 2015 and hypothetical land use to represent extensive land-use change in the catchment area. The simulation results based on 17 years of rainfall records indicate that average water quantity will not be significantly affected but the ground water storage will decrease and suspended sediment will increase. Ground water decrease and sediment yield increase will exacerbate the Bukit Merah Reservoir operation problem.

scholarly journals Ground Water Table under Different Land Uses

2019 ◽  
Vol 6 (2) ◽  
pp. 121
Author(s):  
Nur Wakhid ◽  
Siti Nur Zakiah
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Ground Water ◽  
Water Level ◽  
Agricultural Land ◽  
Primary Forest ◽  
Measurement Tool ◽  
Land Uses ◽  
Level Measurement ◽  
Tropical Peatlands

<p>Fires in Indonesia tropical peatlands are always associated with peatland conversion. Land use change usually occurs from secondary or primary forest to agricultural land or plantation. However, land use change in Indonesia is inevitable because high demand of land for food supply. Peatlands which are usually associated with wetlands, become dry due to drainage during land clearing and plant growth process. Therefore, the relationship between ground water level (GWL) and fires on tropical peatlands is close. The research objective is to analyze the level of fire vulnerability on peatlands based on the GWL fluctuation under different land uses. GWL measurement was conducted manually every week from February to December 2014 in the field and ditch on three different land uses. Automatic water level measurement tool also conducted from March to December 2014, but only on the field. GWL fluctuation both on ditch and field followed the variation of precipitation. GWL fluctuation under different land uses also significantly different, and automatically results different fire vulnerability.</p>

Sign in / Sign up

Export Citation Format

Share Document