scholarly journals The temperature of peat soil at Leteensuo

1962 ◽  
Vol 34 (1) ◽  
pp. 12-17
Author(s):  
Yrjö Pessi
Keyword(s):  
Soil Temperature ◽  
Peat Soil ◽  
Geographical Location ◽  
Natural State ◽  
Remarkable Difference ◽  
Warm Up ◽  
Sphagnum Peat ◽  
Sphagnum Bog

The soil temperature at depths of 20, 50 and 100 cm has been higher in the summertime in the cultivated fen soil at Leteensuo than in cultivated Sphagnum peat soil, while the latter again had higher temperatures than Sphagnum bog in its natural state. There is a remarkable difference in soil temperature between two bogs of different geographical location, namely, Leteensuo and Pelsonsuo. At Leteensuo, which lies in the southern part of Finland, the soil begins to warm up at a much earlier date than at Pelsonsuo and the soil temperature is higher. The effective soil temperature (referred to +5°C) at 20 cm depth is nearly twice as high as at Pelsonsuo; at a greater depth it is even three times as high.

scholarly journals The effect of claying carried out in 1923 upon the thermal conditions in cultivated Sphagnum peat soil in the summer of 1959

1960 ◽  
Vol 32 (1) ◽  
pp. 1-4
Author(s):  
Yrjö Pessi
Keyword(s):  
Soil Temperature ◽  
Peat Soil ◽  
Thermal Conditions ◽  
Test Area ◽  
Point Of View ◽  
Long Period ◽  
Sphagnum Peat ◽  
Sphagnum Bog

In the present investigation the significance of claying of cultivated Sphagnum bog was studied from the point of view of the thermal conditions in the soil after a long period. The investigation was carried out when 36 years had passed since clay had been applied to the test area. The results have shown that the claying has caused differences of about 1°C in soil temperature in summer as compared to unclayed soil.

scholarly journals Nitrous Oxide Emissions in Pineapple Cultivation on a Tropical Peat Soil

2021 ◽  
Vol 13 (9) ◽  
pp. 4928
Author(s):  
Alicia Vanessa Jeffary ◽  
Osumanu Haruna Ahmed ◽  
Roland Kueh Jui Heng ◽  
Liza Nuriati Lim Kim Choo ◽  
Latifah Omar ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Soil Temperature ◽  
Peat Soil ◽  
Farming Systems ◽  
N2o Emission ◽  
Nitrous Oxide Emissions ◽  
Natural State ◽  
N2o Emissions ◽  
Wet Season ◽  
Peat Soils

Farming systems on peat soils are novel, considering the complexities of these organic soil. Since peat soils effectively capture greenhouse gases in their natural state, cultivating peat soils with annual or perennial crops such as pineapples necessitates the monitoring of nitrous oxide (N2O) emissions, especially from cultivated peat lands, due to a lack of data on N2O emissions. An on-farm experiment was carried out to determine the movement of N2O in pineapple production on peat soil. Additionally, the experiment was carried out to determine if the peat soil temperature and the N2O emissions were related. The chamber method was used to capture the N2O fluxes daily (for dry and wet seasons) after which gas chromatography was used to determine N2O followed by expressing the emission of this gas in t ha−1 yr−1. The movement of N2O horizontally (832 t N2O ha−1 yr−1) during the dry period was higher than in the wet period (599 t N2O ha−1 yr−1) because of C and N substrate in the peat soil, in addition to the fertilizer used in fertilizing the pineapple plants. The vertical movement of N2O (44 t N2O ha−1 yr−1) was higher in the dry season relative to N2O emission (38 t N2O ha−1 yr−1) during the wet season because of nitrification and denitrification of N fertilizer. The peat soil temperature did not affect the direction (horizontal and vertical) of the N2O emission, suggesting that these factors are not related. Therefore, it can be concluded that N2O movement in peat soils under pineapple cultivation on peat lands occurs horizontally and vertically, regardless of season, and there is a need to ensure minimum tilling of the cultivated peat soils to prevent them from being an N2O source instead of an N2O sink.

Effects of processing on peat moss microflora

1988 ◽  
Vol 34 (2) ◽  
pp. 131-133 ◽  
Author(s):  
Yvon Cormier ◽  
Anne Mériaux ◽  
Gilles Brochu
Keyword(s):  
Peat Soil ◽  
Dry Weight ◽  
Peat Moss ◽  
Processing Plant ◽  
Soil Drying ◽  
Sphagnum Peat ◽  
Plant Soil ◽  
Sphagnum Peat Moss ◽  
Large Numbers

We studied the microflora of Quebec sphagnum peat moss samples taken from five different locations in a peat moss processing plant: soil, drying stacks, sedimented dust (walls and floor), and in bagged peat moss. Large numbers of microorganisms were found; the predominant ones were of the genus Monocillium (up to 112 × 106 colonies/g of dry peat) and the genus Penicillium (320 × 104 colonies/g dry weight). These moulds were more abundant in the processed peat moss than in the peat soil (e.g., Monocillium: soil, 138 × 103; processed peat, 112 × 106). Aspergillus spp. were absent in all five sample sites. We conclude that Quebec peat moss contains large quantities of microorganisms and that moulds become more concentrated during the processing of the peat from the soil to the final product.

THE EFFECT OF CROPPING ON SOME CHEMICAL PROPERTIES OF A SPHAGNUM PEAT SOIL

1963 ◽  
Vol 43 (1) ◽  
pp. 171-177 ◽  
Author(s):  
L. R. Townsend ◽  
D. C. MacKay
Keyword(s):  
Hydrochloric Acid ◽  
Peat Soil ◽  
Chemical Properties ◽  
Proximate Analysis ◽  
Exchange Capacity ◽  
Sphagnum Peat ◽  
Carbon Nitrogen Ratio ◽  
Nitrogen Ratio ◽  
Pre Treatment ◽  
Hydrolysis Of

Chemical analysis, including a conventional scheme of proximate analysis as well as pre-treatment with 0.1 N hydrochloric acid, were used to assess changes occurring in the chemical properties of a strongly acid sphagnum peat when it was limed, fertilized and cropped for 3- and 5-year periods. Pre-treatment was necessary to remove the large quantities of added fertilizer and limestone which were found to neutralize substantial amounts of the hydrochloric acid required for the hydrolysis of hemicellulose.In comparison with raw peat the percentages of hemicellulose and cellulose and the carbon-nitrogen ratio decreased in the cropped peat. The situation was reversed in the case of bitumen, the lignin-humic substances complex and cation-exchange capacity. The results indicated further that with cropping the composition of the peat tended towards the composition of an adjacent muck.

Crop Responses to Some Micronutrients and Sodium on Sphagnum Peat Soil

1964 ◽  
Vol 28 (1) ◽  
pp. 101-104 ◽  
Author(s):  
D. C. MacKay ◽  
E. W. Chipman ◽  
W. M. Langille
Keyword(s):  
Peat Soil ◽  
Sphagnum Peat

scholarly journals The relationship between dissolved organic carbon and hydro-climatic factors in peat-muck soil

2015 ◽  
Vol 24 (1) ◽  
pp. 27-33
Author(s):  
Jacek Jaszczyński
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Redox Potential ◽  
Soil Temperature ◽  
Soil Solution ◽  
Climatic Factors ◽  
Peat Soil ◽  
Colorimetric Method ◽  
Soil Redox Potential ◽  
Doc Concentration

Abstract The object of this study was the concentration of dissolved organic carbon (DOC) in soil solution related to groundwater table, soil temperature, moisture, redox potential and intensive storm rain and their changes during ten years (2001–2010). The studies were localized in drained and agriculturally used Kuwasy Mire situated in the middle basin of the Biebrza River, north-eastern Poland. The study site was situated on a low peat soil managed as intensively used grassland. The soil was recognized as peat-muck in the second stage of the mucking process. DOC concentration was determined by means of the flow colorimetric method using the Skalar equipment. Mean in the whole study period DOC concentration in soil solution was 72 mg·dm−3. A significant positive correlation was observed between DOC concentration and soil temperature at 30 cm depth. The highest DOC concentrations were observed from July to October accompanied by the lowest ground water level. The DOC concentration in soil solution showed also a significant correlation with soil redox potential at 20 cm depth – a border between muck and peat layers. This layer is potentially most active with respect to biochemical transformation. There was no relationship between DOC concentration and soil moisture. However, the influence of torrential rains on the intensity of DOC removal was demonstrated in this study.

scholarly journals Effects of Soil Temperature, Flooding, and Organic Matter Addition on N2O Emissions from a Soil of Hongze Lake Wetland, China

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Yan Lu ◽  
Hongwen Xu
Keyword(s):  
Organic Matter ◽  
Environmental Factors ◽  
Soil Temperature ◽  
Peat Soil ◽  
N2o Emissions ◽  
Soil N ◽  
Hongze Lake ◽  
Complex Interactions ◽  
Organic Matter Addition ◽  
Organic Matter Input

The objectives of this study were to test the effects of soil temperature, flooding, and raw organic matter input on N2O emissions in a soil sampled at Hongze Lake wetland, Jiangsu Province, China. The treatments studied were—peat soil (I), peat soil under flooding (II), peat soil plus raw organic matter (III), and peat soil under flooding plus organic matter. These four treatments were incubated at 20°C and 35°C. The result showed that temperature increase could enhance N2O emissions rate and cumulative emissions significantly; moreover, the flooded soil with external organic matter inputs showed the lowest cumulative rise in N2O emissions due to temperature increment. Flooding might inhibit soil N2O emissions, and the inhibition was more pronounced after organic matter addition to the original soil. Conversely, organic matter input explained lower cumulative N2O emissions under flooding. Our results suggest that complex interactions between flooding and other environmental factors might appear in soil N2O emissions. Further studies are needed to understand potential synergies or antagonisms between environmental factors that control N2O emissions in wetland soils.

EFFECT OF LIME ON POTATO CROPS AND ON PROPERTIES OF A SPHAGNUM PEAT SOIL

1967 ◽  
Vol 47 (2) ◽  
pp. 89-94 ◽  
Author(s):  
A. J. MacLean ◽  
J. J. Jasmin ◽  
R. L. Halstead
Keyword(s):  
Beneficial Effect ◽  
Field Experiment ◽  
Soil Ph ◽  
Peat Soil ◽  
Sphagnum Peat ◽  
Hygroscopic Moisture ◽  
Volume Weight ◽  
Potato Crops

Limestone applied at the rate of 6.7 metric tons/ha to a raw peat soil (pH 3.7) increased the yield of potatoes in a field experiment by 5.5 tons/ha. Higher rates of lime gave no further increase. In the three subsequent years the yield was just as satisfactory on the unlimed plots as on those receiving the 6.7-ton rate and the yield was depressed by higher rates of lime.Limestone, particularly at the higher rates, tended to increase hygroscopic moisture, volume weight, ash, CEC and solubility in pyrophosphate solution and to decrease C and the C/N ratio of the soil. Although these changes were small they were indicative of a beneficial effect of lime on humification of the peat.

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