scholarly journals Nutrients Dynamics in Peat Soil: Influence of Fluctuating Water Table

2019 ◽  
Vol 327 ◽  
pp. 012024
Author(s):  
N Q B Kassim ◽  
A Yaacob
Keyword(s):  
Water Table ◽  
Peat Soil ◽  
Soil Influence

scholarly journals Technical Note: Development of an automated lysimeter for the calculation of peat soil actual evapotranspiration

2011 ◽  
Vol 8 (3) ◽  
pp. 5009-5033 ◽  
Author(s):  
S. Proulx-McInnis ◽  
A. St-Hilaire ◽  
A. N. Rousseau ◽  
S. Jutras ◽  
G. Carrer ◽  
...  
Keyword(s):  
Water Level ◽  
Water Table ◽  
Peat Soil ◽  
Stomatal Resistance ◽  
Technical Note ◽  
Actual Evapotranspiration ◽  
Quebec City ◽  
Surrounding Water ◽  
To Come ◽  
Number Of Publications

Abstract. A limited number of publications in the literature deal with the measurement of actual evapotranspiration (AET) from a peat soil. AET is an important parameter in the description of water pathways of an ecosystem. In peatlands, where the water table is near the surface and the vegetation is composed of nonvascular plants without stomatal resistance, the AET measurement represents a challenge. This paper discusses the development of an automated lysimeter installed between 12 and 27 July 2010, at a 11-ha bog site, Pont-Rouge (42 km west of Quebec City, Canada). This system was made of an isolated block of peat, maintained at the same water level as the surrounding water table by a system of submersible pressure transmitters and pumps. The change in water level in millimetres in the isolated block of peat was used to calculate the water lost through evapotranspiration (ET) while accounting the precipitation. The rates of AET were calculated for each day of the study period. Temperature fluctuated between 17.2 and 23.3 °C and total rainfall was 43.76 mm. AET rates from 0.6 to 6.9 mm day−1 were recorded, with a ΣAET/ΣP ratio of 1.38. The estimated potential ET (PET) resulting from Thornthwaite's semi-empirical formula suggested values between 2.8 and 3.9 mm day−1. The average AET/PET ratio was 1.13. According to the literature, the results obtained are plausible. This system, relatively inexpensive and simple to install, may eventually be used to calculate AET on peaty soils in the years to come.

scholarly journals Minimizing carbon loss through integrated water resource management on peatland utilization in Pulau Burung, Riau, Indonesia

2020 ◽  
Vol 200 ◽  
pp. 02019
Author(s):  
Nurul Ihsan Fawzi ◽  
Annisa Noyara Rahmasary ◽  
Ika Zahara Qurani
Keyword(s):  
Water Management ◽  
Resource Management ◽  
Water Resource ◽  
Water Table ◽  
Water Resource Management ◽  
Peat Soil ◽  
Carbon Loss ◽  
Integrated Water Resource Management ◽  
Subsidence Rate ◽  
Yearly Average

Sustainable utilization of peatland is required for balancing production and conservation efforts. On peatland, one of the main components to examine sustainability is understanding the carbon balance. This research was conducted in Pulau Burung, Riau, Indonesia, which has a long history of peatland utilization for agriculture. The sets of utilized data included historical data of water management on peatland represented by water table and subsidence rate, next to carbon density of peat soil. The results showed the function of integrated water resource management made the yearly average water table depth is 48 and 49 cm in 2018 and 2019, respectively. The range water table is between 31cm to 72 cm due to season variability and crop requirement. Consequently, the rate of annual subsidence is averaging at 1.7 cm with cumulative subsidence in 32 yr is 54.1 cm. Since the water never drained since the establishment, the subsidence rate of the first five years is averaging only at 3.3 cm yr–1. Low subsidence rates minimize annual carbon loss during the peatland utilization around (30 to 200) Mg CO2 ha–1 yr–1. In 32 yr, the water management in peatland utilization in Pulau Burung has prevented 2 000 Mg CO2 ha–1 to 4 925 Mg CO2 ha–1 loss compared to other cultivated areas in peatland. Further, this paper discusses the practice that resulted in low emission of coconut agriculture in Pulau Burung as one of sustainability dimensions, which support the other sustainability aspects, that is the thriving local livelihood.

scholarly journals Horizontal and Vertical Emissions of Carbon Dioxide and Methane from a Tropical Peat Soil Cultivated with Pineapple (Ananas comosus (L.) Merr.)

2019 ◽  
Vol 8 (3) ◽  
pp. 1
Author(s):  
Alicia Vanessa Jeffary ◽  
Ahmed Osumanu Haruna ◽  
Roland Kueh Jui Heng ◽  
Liza Nuriati Lim Kim Choo ◽  
Latifah Omar
Keyword(s):  
Water Table ◽  
Large Scale ◽  
Peat Soil ◽  
Ananas Comosus ◽  
Positive Contribution ◽  
Limited Information ◽  
Peat Soils ◽  
Vertical Movements ◽  
Ch4 Emissions ◽  
Tropical Peat

Peat soils have been developed for large scale plantations such as oil palm due to their positive contribution to Malaysia’s economic growth in agriculture sector. However, these developments contribute to the emissions of greenhouse gases (GHGs) mainly carbon (CO2) and methane (CH4). To date, there were limited information of GHGs emissions from pineapple cultivation and also inadequate data on horizontally and vertically soil GHGs emissions in peat soil profile. Thus, this study was carried out to determine carbon CO2 and CH4 emissions horizontally and vertically from a drained tropical peat soils from a drained tropical peat soils cultivated with pineapple (Ananas comosus (L.) Merr. Horizontal and vertical movements of CO2 and CH4 were measured from a drained tropical peatland with Ananas comosus (L.) Merr. Tropical peat soils cultivated with Ananas comosus (L.) Merr. contributed to 79.7 % of CO2, and 0.2 % of CH4 based on the yearly basis regardless of the differences in diurnal transportation; horizontal and vertical emission. Soil CO2 and CH4 were emitted the most through horizontal transportation with 70.84 % CO2, and 0.19 % CH4 compared to 8.85 % CO2, and 0.02 % CH4 in vertical transportation. The emission of CO2 was influenced by depth of water table and temperature. It is generally believed that lowering of peats water table leads to emission of higher CO2 emission because this process leads to exposure of peat soils to oxidation. Seasonal variation in CH4 flux was higher in the wet seasons due to rainfall; this might have increased the water table of the peat soil. The results suggest that CO2 and CH4 emissions occur both horizontally and vertically regardless of season. Therefore in order not to underestimate CO2 and CH4 emissions from peat soil, it is important to measure the emissions of this greenhouse gas which has been implicated in environmental pollution horizontally and vertically.

Dynamics of microbial populations and diversity in NAPL contaminated peat soil under varying water table conditions

2020 ◽  
Vol 191 ◽  
pp. 110167
Author(s):  
Pankaj Kumar Gupta ◽  
Behrad Gharedaghloo ◽  
Michael Lynch ◽  
Jiujun Cheng ◽  
Maria Strack ◽  
...  
Keyword(s):  
Water Table ◽  
Peat Soil ◽  
Microbial Populations

scholarly journals MOISTURE RELEASE OF TROPICAL PEAT SOILS AS DECREASING WATER TABLE

2019 ◽  
Vol 1 (1) ◽  
pp. 33-37
Author(s):  
Ahmad Kurnain
Keyword(s):  
Bulk Density ◽  
Water Table ◽  
Peat Soil ◽  
Total Porosity ◽  
Crop Growth ◽  
Moisture Retention ◽  
Peat Soils ◽  
Tropical Peat ◽  
Column Method ◽  
Water Tables

Hydro-physics of peat soils varied with their peat decomposition degree. One of the important hydro-physics is ability of the peat soil to release water as decreasing water table. Potential of water availabilty to crop growth is evidently related to this behaviour. The present study was conducted to understand modes of moisture release of peat soils as decreasing water table. Water tables were simulated using a hanging column method. The water table was arranged at levels of 0, 10, 20, 30, 50, and 100 cm below peat column surfaces. Potential of moisture release or in oppositely potential of moisture retention could be modelled with the 3 parameter equation. Highly decomposed peat characterized by higher bulk density and lower total porosity stored less water but retained more water.

scholarly journals PENGARUH KEDALAMAN MUKA AIR TANAH TERHADAP LILIT BATANG KARET CLON PB260 DAN SIFAT KIMIA TANAH GAMBUT DI KEBUN MERANTI RAPP RIAU

2015 ◽  
Vol 2 (1) ◽  
pp. 5-12
Author(s):  
Aries Sukariawan ◽  
Abdul Rauf ◽  
Arief Setiawan Sutanto ◽  
Bolot Santoso
Keyword(s):  
Water Level ◽  
Water Table ◽  
Peat Soil ◽  
Chemical Properties ◽  
Ash Content ◽  
Soil Samples ◽  
North Sumatra ◽  
Descriptive Method ◽  
Exchangeable P ◽  
And Chemical Properties

Study to evaluate the effect of the depth of water table in peatlands of the PB260 rubber girthimmature plants (age 2-3 years) and chemical properties of peat soil has been carried out inMeranti Estate RAPP Kampar Estuary Pangkalan Kerinci District of Riau in December 2013.The research used a descriptive method with measuring water table depth in selected plots with girthmeasurements of planting rubber trees planted in 2010 and 2011. At two sample plots (representingthe shallowest water level and water level deep) dug each soil profile to the investigation anddecision soil samples. Soil samples were analyzed at the Laboratory of BPTP North Sumatra. Theresults showed that the water table in peatlands deeper, reaching 88.6 cm girth will decrease thegrowth of young rubber trees. Rubber immature plants age 2 years who has the best girth growth ingroundwater at a depth of 29.6 cm deep and 3 years old trunk circumference rubber girth bestgrowth at 65.3 cm water table. The water table is within reach mean 88.6 cm cause fasterdecomposition of peat soil is characterized by C/N ratio of lower and lower quality (fertility) peatsoils with lower ash content, K-exchangeable, Mg-exchangeable, P-available, and P-total.

IMPACTS OF WATER TABLE AND SOIL AMELIORANT ON SOIL MOISTURE, CO2 EMISSION, AND OIL PALM YIELD ON PEAT SOIL

2017 ◽  
Vol 25 (3) ◽  
pp. 147-160
Author(s):  
Winarna Winarna ◽  
Muhammad Arif Yusuf ◽  
Suroso Rahutomo ◽  
Edy Sigit Sutarta
Keyword(s):  
Soil Moisture ◽  
Soil Water ◽  
Water Table ◽  
Oil Palm ◽  
Co2 Emission ◽  
Peat Soil ◽  
Water Table Depth ◽  
Water Table Management ◽  
Soil Ameliorant ◽  
Sludge Application

A field study on peat soil to investigate impacts of soil water table depth and soil ameliorant (steel sludge) had been carried out on mature oil palm. Three treatments of soil water table management and four rates of steel sludge application were applied in this study. Treatments of soil water table management were WLM1, WLM-2, and WLM-3, where soil water table depth was maintained at 35-50 cm, 60-75 cm, and >75 cm below the soil surface, respectively. Treatments of steel sludge were application of this soil ameliorant at the rate of 0; 3.15; 6.51; 9.86 kg tree-1. The study was arranged as split plot randomized block design by assigning soil water table management as main plot and rate of steel sludge as sub plot. Soil Data observed were actual soil water content, peat soil properties, CO2 emission, vegetative growth, and palm yield. The results showed that maintaining soil water table depth at < 75 cm could maintain actual soil moisture up to top parts of peat soil. On the other hand, deeper soil water table (>75 cm, WLM-3) caused significant effects on decreasing of soil moisture in the 0-10 cm layer of peat soil. CO2 emission was 37, 40, dan 45 ton ha-1 year-1 under WLM-1, WLM-2, and WLM-3, respectively. The drop of soil water table to >75 cm (WLM-3) significantly increased CO2 emission to about 11-18% higher than that on WLM-1 and WLM-2. Steel sludge application did not significantly decrease CO2 emission. The highest FFB yield was observed under WLM-1, then followed by WLM-2 and WLM-3. FFB yield was significantly higher when soil water depth was maintained at 35-75 cm than that at > 75 cm, it was 7-10% and 36-60% higher in 2014 and 2015, respectively. There were no significant effects of steel sludge application on FFB yield, but there was improvement on average bunch weight.

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