scholarly journals SIFAT KIMIA DAN TINGGI MUKA AIR TANAH GAMBUT PADA TIGA TIPE PENGGUNAAN LAHAN DI FISIOGRAFI KUBAH GAMBUT DAN RAWA BELAKANG KHG KAHAYAN-SEBAGAU

2020 ◽  
Vol 8 (3) ◽  
pp. 315
Author(s):  
Marinus Kristiadi Harun ◽  
Syaiful Anwar ◽  
Eka Intan Kumala Putri ◽  
Hadi Susilo Arifin
Keyword(s):  
Land Cover ◽  
Water Level ◽  
Organic Material ◽  
Rainy Season ◽  
Chemical Elements ◽  
Peat Soil ◽  
Chemical Properties ◽  
Ground Surface ◽  
Water Level Fluctuations ◽  
Peat Soils

This study aims to: (1) determine the chemical properties of peat soils in 3 types of land cover in 2 physiographies; (2) find out water level fluctuations (WLF) on peat soils covered by agroforestry and horticulture in the physiography of peat dome and backswamp during the rainy season, transitions and drought. This research was conducted in January until December 2018 in Kahayan-Sebangau Peat Hidrological Unit, in the Kalampangan Vilagge. The results showed that differences in peat soil cover conditions at different physiographies affected chemical properties and WLF. The three types of peatland cover on both physiographic types of peatlands have a pH that categories into the very acid (<4.5). The results of this study indicate that nutrients (N, P, Kd, C, Mg, Al, Na and SO4) that are formed in each type of land cover in 2 physiographies indicate that these elements in peatlands are influenced by a layer of peat which obtains input of organic material from the plants above it. Peat fertility depends on the contribution of organic material from plants on it. Peatland cation exchange capacity values for all types are in the very high category (> 40). In addition to the chemical elements of the soil, the peat ground water level is highly volatile following rainfall so that during the peak of the dry season (MK) the WLF can reach 200 cm below the ground surface, and vice versa during the peak of the rainy season (MH) the WLF can inundate all peat soils.

scholarly journals Pidsolic-peat soils of Nadsyanya plain

2013 ◽  
pp. 91-98
Author(s):  
Volodymyr Haskevych ◽  
Olena Lutsishin
Keyword(s):  
Key Words ◽  
Granulometric Composition ◽  
Peat Soil ◽  
Chemical Properties ◽  
Soil Protection ◽  
Laboratory Studies ◽  
Peat Soils ◽  
Physical Chemical ◽  
Composition Structure

The results of field and laboratory studies pidsolic-peat soils Nadsanya plains were shown. The characteristics of geography, morphological peculiarities, physical and physical-chemical properties, agroecological state of soils were given. The event of management and protection of pidsolic-peat soils were examined. Key words: pidsolic-peat soil, morphological peculiarities, granulometric composition, structure, humus, degradation, soil protection.

scholarly journals The Effect of Timber Harvesting on Fluctuation of Peat Water Level and Subsidence of Peat-Soil Surface

2019 ◽  
Vol 6 (2) ◽  
pp. 74
Author(s):  
Sona Suhartana ◽  
Yuniawati Yuniawati
Keyword(s):  
Water Level ◽  
Peat Soil ◽  
Drainage System ◽  
Soil Surface ◽  
Timber Harvesting ◽  
Water Level Fluctuations ◽  
Timber Production ◽  
Forest Plantation ◽  
Harvesting Techniques ◽  
Soil Compactness

<p>A goal of timber harvesting is to increase timber production through removing the timber  from the forest using some harvesting techniques.  A peatland is a fragile ecosystem and may degraded easily. Logging activities may adversely affect the soil compactness that disrupt the peat drainage system as well as cause subsidence, then ultimately may cause the sustainability of peat.  This study was focused on examining the effect of timber harvesting acivities in peat forest plantation.  The peatland damage may in the form of increased bulk density, water level fluctuations of peat (TMA), subsidence, irreversible and carbon emissions.  The objective of the  study is to find out the effect of timber harvesting in peatland plantations to peat water fluctuations and subsidence.  The results showed that logging activites caused : (1) The average of water table and water level are about 1.03 and 0.967 m; and (2) Subsidence about -8 to -12.5 cm with the average is -11.0 cm. </p>

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.

Fracture effects in the shallow groundwater zone in weathered Sarnia-area clay

1989 ◽  
Vol 26 (1) ◽  
pp. 43-56 ◽  
Author(s):  
A. Y. D'Astous ◽  
W. W. Ruland ◽  
J. R. G. Bruce ◽  
J. A. Cherry ◽  
R. W. Gillham
Keyword(s):  
Hydraulic Conductivity ◽  
Water Level ◽  
Large Diameter ◽  
Ground Surface ◽  
Shallow Groundwater ◽  
Tracer Experiment ◽  
Glacial Till ◽  
Water Level Fluctuations ◽  
Depth Profiles ◽  
Weathered Zone

The Sarnia area of southwestern Ontario is underlain by thick deposits of clay-rich glacial till. From ground surface to between 4 and 6 m depth the clay till is fractured, oxidized, and penetrated by root holes. The water table fluctuates seasonally between the ground surface and the bottom of the weathered zone. Water-level response tests in conventional piezometers installed in augered holes in the weathered zone typically provide very low values of hydraulic conductivity (10−7–10−9 cm/s), which are similar to values obtained from the deeper unweathered and unfractured till. The augering process creates a smeared clay zone along the borehole walls that significantly reduces measured hydraulic conductivity values. In this study, the weathered-zone hydraulic conductivity was measured using unconventional piezometers, a large-diameter well, and a tracer experiment between two test pits. The smeared zone was removed or reduced around these installations, and the measured weathered-zone hydraulic conductivity was 10−5–10−7 cm/s, much higher than in the deep unweathered clay. These results, together with depth profiles of groundwater tritium and monitored water-level fluctuations, indicate that the weathered zone has hydraulic conductivity governed by fractures and has significant hydrologic activity in the fractures. Key words: clay, fractures, hydraulic conductivity, permeability, piezometer, tritium, tracer experiment, weathered zone.

The effect of ground water-level upon productivity and composition of fenland grass (II)

1953 ◽  
Vol 43 (3) ◽  
pp. 265-274 ◽  
Author(s):  
H. H. Nicholson ◽  
D. H. Firth ◽  
A. Eden ◽  
G. Alderman ◽  
C. J. L. Baker ◽  
...  
Keyword(s):  
Ground Water ◽  
Water Level ◽  
Peat Soil ◽  
Ground Surface ◽  
Nutrient Status ◽  
High Water ◽  
Water Levels ◽  
Italian Ryegrass ◽  
High Water Level ◽  
Below Ground

1. Further studies were carried out during 1950 on the effects of different ground water-levels upon the productivity and composition of Italian ryegrass grown on a calcareous light peat soil. The season was an unusually wet one, in contrast with the dry season experienced in 1949.2. Seven successive cuts were taken during the season from each of two crops of ryegrass, one following a crop of marrow-stem kale, and the other a crop of celery. Different amounts of a general compound fertilizer had been applied.3. Generally, the findings confirmed those of the previous year's investigation. High ground waterlevel (approximately 18 in. below ground surface) had a deleterious effect upon the yield and quality of ryegrass as reflected by its protein content, compared with the medium and low water-levels (23 and 30 in. below ground surface, respectively).4. The high water-level also had a depressing effect upon the percentage of potassium and magnesium in the grass, but had no consistent effect upon calcium and phosphorus. The silica content rose steadily in all cases as the season advanced, as occurred in the previous year.5. Residual manuring effects were well marked in the crop following celery. The total yields of dry matter from the medium and low water-levels considerably exceeded those of similar plots following kale, and the protein contents were also appreciably higher. This demonstrates the advantages of a high soil nutrient status, under conditions of suitable water-levels, for a crop of fenland grass.6. A high water-level inhibited growth and quality, irrespective of the nutrient status of the soil.

scholarly journals Stages of soil development in the coastal zone of a disappearing lake—a case study from central Poland

2021 ◽  
Vol 21 (3) ◽  
pp. 1420-1436
Author(s):  
Bogusława Kruczkowska ◽  
Jerzy Jonczak ◽  
Sandra Słowińska ◽  
Arkadiusz Bartczak ◽  
Mateusz Kramkowski ◽  
...  
Keyword(s):  
Water Level ◽  
Mineral Composition ◽  
Soil Cover ◽  
Chemical Properties ◽  
Water Level Fluctuations ◽  
Organic Soils ◽  
Physical And Chemical Properties ◽  
Central Poland ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract Purpose The aim of this study was to estimate the impact of lake disappearance, groundwater table fluctuations, and some aspects of human pressure on stages of soil cover development in the catchment of Lake Rakutowskie. Materials and methods Research was conducted in soil chronosequence composed of eight soil profiles located in 785-m-long transect. Soils were sampled every 10 cm. Physical and chemical properties were determined with the use of disturbed and undisturbed samples. Radiocarbon dates were obtained for the bottom part of peat in each soil profile. The mineral composition of selected soil samples was determined using the X-ray diffraction (XRD) method. Additionally, the hydrological conditions were continuously monitored from July 27, 2013 to September 23, 2014. Results and discussion An increased rate of shallow lakes overgrowth and final disappearance is a commonly observed process in the European lowlands. This paper presents and discusses the influence of changes in the range of the Lake Rakutowskie wetlands complex (central Poland) and water level fluctuations on soil cover transformation in the immediate vicinity of the lake. Five major phases of soil cover development (from Subaquatic Histosols (Limnic) to Hypereutric Regosol (Drainic, Humic)) were hypothetically reconstructed based on detailed studies of soil physical and chemical properties, mineral composition, water level fluctuations, and radiocarbon dating. The degree of peat decomposition in the studied profiles increased with the distance from the contemporary lake surface. Along with the progressive dehydration and mineralization of organic soils, their physical and chemical properties deteriorated, which is visible, e.g., in soil structure, and mineral and chemical composition (especially TOC and TN). Obtained radiocarbon ages of selected samples indicate that the oldest peat layers developed about 5856 cal BCE (6970 ± 70 14C BP), while the youngest were deposited about 1074 cal CE (980 ± 40 14C BP)–1573 cal CE (300 ± 35 14C BP). Hydrological studies indicate a progressive process of lake disappearance. Conclusions The process of soil cover transforming of the studied area takes place relatively quick, mainly recently due to the influence of human activity. Based on these results, it can be predicted that the lake will most likely disappear in a relatively short time, and the soil cover will be entirely in the fifth phase (P5) of evolution.

scholarly journals PENGARUH PEMBAKARAN BERULANG PADA LAHAN GAMBUT TERHADAP BEBERAPA KARAKTERISTIK TANAH DI DESA RASAU JAYA UMUM KABUPATEN KUBU RAYA KALIMANTAN BARAT

2020 ◽  
Vol 8 (3) ◽  
Author(s):  
Yuliana Astuti ◽  
Dwi Astiani ◽  
Ratna Herawatiningsih
Keyword(s):  
Soil Moisture ◽  
Physical Properties ◽  
Ground Water ◽  
Water Content ◽  
Water Level ◽  
Chemical Nature ◽  
Chemical Properties ◽  
Soil Characteristics ◽  
Peat Soils ◽  
West Kalimantan

The National Disaster Management Agency (BNPB) identifies eight provinces considered prone to forest and land fires in Indonesia. Four provinces are in Sumatra and four are in Kalimantan, one of which is West Kalimantan. Forest and land fires seem to have become a disaster in West Kalimantan, especially every dry season. Burning activies in the preparation of land for agriculture in the village of Rasau Jaya General is still using a relatively simple technology, namely the method of "slash and burn". The impacts caused by the peat fire process are in the form of water vapor from the combustion process in the air so that smoke formed which is very thick, causes environmental pollution and can affect soil conditions such as physical and chemical properties of peat soils. The purpose of this study was to obtain information about the effects of repeated burning on peatlands on soil characteristics in Rasau Jaya Umum Village, Kubu Raya Regency, West Kalimantan. This research was conducted by survey method and carried out with purposive sampling on 3 research sites, which were on land that had repeated burning twice, 4 times and 5 times. Soil physical properties observed were peat maturity (fiber content), water content, soil moisture, water level and bulk density. The level of fertility of peatlands is influenced by the chemical nature of the soil. The chemical nature of the soil is one of the limiting factors for knowing nutrients in the soil that are beneficial for plant growth. Determination of the level of soil fertility in peatlands can be done by analyzing the chemical properties of the soil. Analysis of the soil chemical properties includes analysis of the main element content such as acidity (pH), nitrogen (N), phosphorus (P), potassium (K) and cation exchange capacity (CEC). The physical properties of the soil consisting of the weight of the contents, the moisture content varies with different levels of burning, the higher the value of the weight of the contents, the more dense a soil and vice versa. In the value of water content, the amount of combustion influences the amount of ground water content, the more number of combustion, the value of water content also increases. Peat environmental conditions observed in the field consisted of soil moisture, soil temperature and ground water level measured for 7 days and obtained a mean value that also varied did not show its effect on the number of repeated fires. The chemical properties of peat soils on the number of repeated burning can increase and decrease each nutrient value consisting of N, P, K and also CEC. Nutrients that increase in the amount of combustion are pH, N, and CEC while the value of nutrients that decrease is K and P. This shows that the greater the level of combustion, the pH, N, and CEC greater.Keywords: peatlands, repeated burning, soil characteristics

scholarly journals Dinamika Tinggi Muka Air Tanah Pada Lahan Gambut Yang Terbakar

2019 ◽  
Vol 15 (1) ◽  
pp. 86
Author(s):  
Nur Wakhid ◽  
Siti Nurzakiah ◽  
Zainudin Zainudin
Keyword(s):  
Water Level ◽  
Peat Soil ◽  
Fire Risk ◽  
Water Level Fluctuations ◽  
Strongly Correlated ◽  
Seasonal Fluctuations ◽  
Central Kalimantan ◽  
Level Measurement ◽  
Greenhouse Gases Emissions ◽  
Main Indicator

Seasonal fluctuations of water table depth are very important regarding the sustainable peat management on tropical peatland. Water level depth can affect the greenhouse gases emissions and as the main indicator for peat fire risk management. Therefore, direct measurement of water level dynamics in the peat burning area is absolutely necessary. The research objective was studied the water level fluctuations on burning peatland in Central Kalimantan, Indonesia. Water level measurement performed manually in the field and ditch, every week from February to December 2014. Water level from February to December 2014 were -86.6 and -51.9 cm, on the ditch and field, respectively. Peat soil water level was strongly correlated to the variations of rainfall.

scholarly journals THE EFFECT OF WATER TABLE DEEP TO TRUNK CIRCUMFERENCE RUBBER PB260 CLON AND SOIL CHEMISTRY OF PEAT SOIL IN MERANTI ESTATE RAPP OF RIAU

2015 ◽  
Vol 2 (1) ◽  
pp. 1-5
Author(s):  
Aries Sukariawan ◽  
Abdul Rauf ◽  
Arief Setiawan Sutanto ◽  
Bolot Santoso
Keyword(s):  
Water Level ◽  
Water Table ◽  
Soil Chemistry ◽  
Peat Soil ◽  
Chemical Properties ◽  
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.Research used 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 inground water at a depth of 29.6 cm deep and 3 years old trunk circumference rubber girth bestgrowth at 65.3 cm water table. 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.

scholarly journals Genetic-geographical features of peat soil of Small Polissya

2013 ◽  
pp. 64-77
Author(s):  
Volodymyr Gaskevych ◽  
Maria Netzyk
Keyword(s):  
Key Words ◽  
Peat Soil ◽  
Chemical Properties ◽  
Morphological Structure ◽  
Morphological Features ◽  
Soil Protection ◽  
Laboratory Studies ◽  
Peat Soils ◽  
Rational Use ◽  
Physical Chemical

The characteristic of the genetic and geographic features of peat soils of Small Polissya was done. The geography of peat soils was outlined on the results of field and laboratory studies. Morphological structure, physical and physical-chemical properties of peat soils were analyzed. The current agroecological status of peat soil and the measures of the rational use and protection were considered. Key words: peat soils, peat, geography of peat soils, morphological features, drainage, degradation, soil protection.

Sign in / Sign up

Export Citation Format

Share Document