scholarly journals Changes in Physical Properties of Everglades Peat Soils Induced by Increased Salinity at the Laboratory Scale: Implications for Changes in Biogenic Gas Dynamics

2020 ◽  
Vol 56 (6) ◽  
Author(s):  
Matthew J. Sirianni ◽  
Xavier Comas
Keyword(s):  
Physical Properties ◽  
Gas Dynamics ◽  
Laboratory Scale ◽  
Peat Soils ◽  
Biogenic Gas

Physical properties of peat soils under different land use options

2016 ◽  
Vol 32 (3) ◽  
pp. 400-410 ◽  
Author(s):  
P. Mustamo ◽  
M. Hyvärinen ◽  
A.-K. Ronkanen ◽  
B. Kløve
Keyword(s):  
Land Use ◽  
Physical Properties ◽  
Peat Soils

Impact of development and cultivation on hydro-physical properties of tropical peat soils

Tropics ◽  
2006 ◽  
Vol 15 (4) ◽  
pp. 383-389 ◽  
Author(s):  
Ahmad KURNAIN ◽  
Tejoyuwono NOTOHADIKUSUMO ◽  
Bostaug RADJAGUKGUK
Keyword(s):  
Physical Properties ◽  
Peat Soils ◽  
Tropical Peat

Peat collapse in the southwestern Everglades: Understanding the matrix level response to salinization and its implications for biogenic gas fluxes from peat soils

2020 ◽  
Author(s):  
Matthew J. Sirianni ◽  
Xavier Comas ◽  
Carlos Coronado-Molina ◽  
David Rudnick ◽  
Gregory J. Mount
Keyword(s):  
Peat Soils ◽  
Biogenic Gas ◽  
Gas Fluxes ◽  
The Matrix

scholarly journals Segregation Peat Fiber and Pre- Consolidation Pressure Effect on the Physical Properties of Reconstituted Peat Soil

2019 ◽  
Vol 8 (6S3) ◽  
pp. 640-647
Keyword(s):  
Physical Properties ◽  
Pressure Effect ◽  
Peat Soil ◽  
Organic Content ◽  
Liquid Limit ◽  
Peat Soils ◽  
Consolidation Pressure ◽  
Peat Sample ◽  
Undisturbed Sample ◽  
Effect Method

The preparation of the undisturbed peat sample at the site must be conducted to understand its characteristics. However, the sampling process becoming difficult due to the condition of peat soils itself. Due to the limitation in gaining undisturbed sample, a study on reconstitution sample becoming more popular in term of investigating the properties of soil that represent the real site condition. The main purpose of this paper was to investigate the physical properties of undisturbed and reconstituted peat RS3.350, RS2.360, RS1.000 and RS0.425. In this study, the segregation of peat and expulsion water with the aids pre-consolidation pressure was applied to the reconstituted sample. The range value of the physical properties of reconstituted peat was varied from each type of peat classification which affected by the segregation fiber and pre-consolidation pressure effect method. The entire reconstituted peat samples were recons passing the opening sieve size 3.350mm, 2.360mm, 1.000mm and 0.425 mm and were subjected with the 50 kPa, 80 kPa and 100 kPa pre-consolidation pressures. As a result, the natural Parit Nipah peat soil was classified as hemic peat (H5). The percentage of water content, liquid limit, organic content and fiber content for the reconstituted sample is lower compared to the undisturbed peat sample; but differed from specific gravity where the percentage for the reconstituted sample was higher than the undisturbed sample. Conclusively, the segregation of peat fiber and pre-consolidation pressure methods greatly affect and change the physical properties of peat samples.

scholarly journals Sifat Fisik, Kimia dan FTIR Spektrofotometri Gambut Hidrofobik Kalimantan Tengah

2013 ◽  
Vol 14 (2) ◽  
pp. 159-166
Author(s):  
Sri Nuryani Hidayah Utami ◽  
Azwar Maas ◽  
Bostang Radjagukguk ◽  
Benito Heru Purwanto
Keyword(s):  
Soil Moisture ◽  
Chemical Analysis ◽  
Moisture Content ◽  
Physical Properties ◽  
Soil Moisture Content ◽  
Ftir Spectra ◽  
Water Repellent ◽  
Total Acidity ◽  
Peat Soils ◽  
Oven Drying

Peat soils naturally have hydrophilic or waterloving character with highly capable of exchanging the cations and cycling the nutrients from the vegetations. This water-loving character is altered to water-repellent character in hydrophobic peat soils. This research was aimed toobserve deeply the functional bunch carrier of hydrophobic and hydrophilic peat soils as shown by FTIR spectra in relation with inherent chemical and physical properties of the soils. Five peat soils consisted of two native andartificial hydrophobic peat soils and one sample of hydrophilic peat soils were studied. Artificial hydrophobic peat soils were yielded by oven-drying the native hydrophobic peat soils at 50 oC for 10 hours. FTIR spectra can distinguish the functional bunch carrier of hydrophobic and hydrophilic peat soils. FTIR spectra of hydrophobic peat soils showed degradation of hydrophilic bunch carrier (OH and COOH) and increase of the hydrophobic bunch carrier (tying aromatic from esther and ether). Chemical analysis of the hydrophobic peat soils also indicated the decrease of OH and COOH content, decrease of CEC , soil total acidity and soil moisture content.

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