scholarly journals Chemical and Phytocoenological Characteristics of Two Different Slovak Peatlands

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1290
Author(s):  
Danica Fazekašová ◽  
Gabriela Barančíková ◽  
Juraj Fazekaš ◽  
Lenka Štofejová ◽  
Ján Halas ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Profile ◽  
Agricultural Land ◽  
Nitrogen Supply ◽  
Point Of View ◽  
Statistical Testing ◽  
Plant Residues ◽  
Soil Reaction ◽  
Chemical Parameters

This paper presents the results of pedological and phytocoenological research focused on the detailed research of chemical parameters (pH, organic carbon, and nutrients), risk elements (As-metalloid, Cd, Co, Cr, Cu, Ni, Pb, and Zn), and species composition of the vegetation of two different peatlands on the territory of Slovakia—Belianske Lúky (a fen) and Rudné (a bog). Sampling points were selected to characterize the profile of the organosol within the peatland, the soil profile between the peatland and the agricultural land, and the soil profile of the outlying agricultural land, which is used as permanent grassland. Based on phytocoenological records, a semi-quantitative analysis of taxa in accordance with the Braun–Blanquet scale was performed. The study revealed that the thickness of the peat horizon of the fen in comparison with the bog is very low. In terms of the quality of organic matter, the monitored peatlands are dominated by fresh plant residues such as cellulose and lignin. Differences between individual types of peatlands were also found in the soil reaction and the supply of nitrogen to the organic matter of peat. The values of the soil exchange reaction were neutral on the fen, as well as slightly alkaline but extremely low on the bog. A significantly higher nitrogen supply was found in the organic matter of the fen in contrast to the bog. At the same time, extremely low content of accessible P and an above-limit content of As in the surface horizons were also found on the fen. From the phytocoenological point of view, 22 plant species were identified on the fen, while only five species were identified on the bog, which also affected the higher diversity (H’) and equitability (e). The results of the statistical testing confirmed the diversity of the studied peatlands and the different impact of environmental variables on plant diversity.

Conversion of Brazilian savannah to agricultural land affects quantity and quality of labile soil organic matter

Geoderma ◽  
2022 ◽  
Vol 406 ◽  
pp. 115509
Author(s):  
Rafael S. Santos ◽  
Martin Wiesmeier ◽  
Dener M.S. Oliveira ◽  
Jorge L. Locatelli ◽  
Matheus S.C. Barreto ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Agricultural Land ◽  
Brazilian Savannah ◽  
Labile Soil Organic Matter

scholarly journals Carbon stock in litter of middle taiga forest ecosystems of Central Siberia

2021 ◽  
Vol 875 (1) ◽  
pp. 012085
Author(s):  
O Sergeeva ◽  
L Mukhortova ◽  
L Krivobokov
Keyword(s):  
Organic Matter ◽  
Carbon Stock ◽  
Forest Ecosystems ◽  
Middle Taiga ◽  
Plant Residues ◽  
Study Region ◽  
Central Siberia ◽  
Multistage Processes ◽  
Taiga Forest

Abstract Litter plays an important role in the carbon cycle of forest ecosystems incorporating significant amount of carbon as a result of annual partial die-off of the biomass and releasing it during complex multistage processes of organic matter decomposition. The balance of these processes in the forests of permafrost zone significantly shifts towards the accumulation of dead organic matter. That makes the assessment of litter stock in these ecosystems particularly relevant, especially in relation to the predicted consequences of climate change in the study region. On the territory of middle taiga of Central Siberia, 14 sampling plots were established in the various landforms (slopes of different exposition, lowlands and uplands). The carbon stock in litter of the main forest types of the studied area varied from 0.47 to 4.46 kgC/m2. Also, the paper considers composition of litter accumulated in these ecosystems, including the ratio between fresh litterfall, fermented and humified plant residues, and dead roots. Our results demonstrated that fermented plant residues prevailed in the litter composition in most types of studied forest ecosystems due to specificity of hydrothermal regime and quality of litterfall. The results obtained might be applied to refine the carbon budget of Siberian forests.

scholarly journals ІНФОРМАЦІЙНА ПІДТРИМКА ПРОЕКТІВ ЗЕМЛЕУСТРОЮ ЩОДО ОРГАНІЗАЦІЇ ТЕРИТОРІЙ ЗЕМЕЛЬНИХ ЧАСТОК

2018 ◽  
pp. 33-42
Author(s):  
Світлана Юріївна Даншина ◽  
Анастасія Володимирівна Василенко
Keyword(s):  
Land Management ◽  
Agricultural Land ◽  
Single Point ◽  
Functional Model ◽  
Field Work ◽  
Point Of View ◽  
Information Support ◽  
The Subject ◽  
Available Information

One of the main problems of the development of the land market in Ukraine is the unfinished procedure of demarcation of agricultural land. The current legislation has determined the rules for positioning of for land pieces on the locality, has identified and prescribed mechanisms for obtaining a state act on ownership. The analysis of these rules allowed to systematize the input and output data, compile their list, and to determine the executors of the process of determining of location of land pieces. As a result, has obtained a generalized model of the process in the form of a contextual diagram, which defines a single point of view on process, the subject and the goal of modeling in accordance with the requirements of current legislation. The detailed analysis of the process in Ramus Edu. made it possible to develop a functional model of its key stage of the process of developing projects of land management. The use in this process a data, that represents objects defined in a space, the need for their processing and analysis make it possible to justify the use of geographic information systems (GIS). The article offers a method of information support for process of developing of projects of land management, which based on the implement of GIS. The most difficult stage of the method is calculates of the area of land pieces on the locality. This is due to the fact that need to take into account the different quality of land and its intended use, which affects the final cost of the land piece. Possible variants of calculation generalized in a single algorithm, the result of which is the estimation of the area of the land pieces, which indicated in the state act on ownership. Software realization of some of his stages is creating too. Thus, the compilation of available information based on GIS makes it possible to create a comprehensive view of the territory to be demarcated and to make informed decisions when carrying out land parcels on the locality. An example of the realization of some of its stages on the delimitation of lands located in the Pyatikhatk natural and agricultural district of the Dnipropetrovsk region is given. Visualization of the initial data was carried out in the program ArcGIS. An example of the implementation of the proposed method confirmed the possibility to use it in the land management organizations. The introduction of this method will allow to substantiate preliminary decisions regarding the boundaries of land pieces and to shorten the time for field work when the land pieces are transferred to locality

scholarly journals SOIL WORMS POPULATION IN VARIOUS LITTLE QUALITY (C, N, C / N, LIGNIN, AND POLYPHENOL) (CASE STUDY ON AGROFORESTRY LAND IN KELIMUTU NATIONAL PARK, ENDE REGENCY-INDONESIA)

2020 ◽  
Vol 8 (1) ◽  
pp. 124-130
Author(s):  
Agustinus JP Ana Ana Saga ◽  
Heny M.C. Sine ◽  
Laurensius Lehar
Keyword(s):  
Organic Matter ◽  
National Park ◽  
Agricultural Land ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Secondary Forests ◽  
Vegetable Crops ◽  
Earthworm Biomass ◽  
Agricultural Business

The agricultural business that is applied to the agroforestry system in Kelimutu National Park causes differences in the quality of organic matter of plants and earthworm populations, which have consequences for soil environmental services. The purpose of this study is to evaluate the earthworm population and the quality of plant organic matter in various agroforestry systems, intensive agriculture, and secondary forests. Sampling of organic matter from plants and earthworms was carried out in January - July 2016 (in the rainy season) in Agroforestry land: Clove (AF - CK), Cocoa (AF - KK), Candlenut (AF - KM), Coffee (AF - KM) ) compared to intensive agricultural land (monoculture vegetable crops) and secondary forests (SPL-HS), with 3 times repetition. Variables observed were in addition to the number of earthworms found and biomass worms (monolith sampling), also observed the quality of plant organic matter (C (Walkley and black), N (Kjeldahl), Lignin, and Polyphenol (Goering and Van Soest)) (Quadrants). The survey results show that the population of earthworms in SPL-AF is as low as the population in SPL-HS, an average of 3 m-2, while in the SPL-PI the average is only 0.24 m-2. Earthworm biomass in AF is about 69% smaller than worms found in SPL-HS; average earthworm biomass in SPL-AF 15 gm-2 while in SPL-HS an average of 47 gm-2; and the smallest worm biomass found in SPL-PI averaging around 2.3 gm-2. The average quality of organic matter of C-org plants in all SSTs was 38% to 50%, the highest C-org content of AF-CK, AF-KP and SPL-HS were significantly different (p <0.05) with C levels that were others (39% on average). The N and lignin levels of all plant organic matter are the same (P> 0.05), the average is 1.36% and 41.13%, respectively. The C / N ratio in AF - CK and HS is the same at an average of 52.78% or 58 times higher than AF - KK, AF - KM, and AF - KP, the average is 31.11% The polyphenolic levels of different plant organic matter significant (p <0.05) between SPL. The highest levels of polyphenols were on average 17.5% found in plant organic matter AF - CK and SPL - HS, while plant organic matter in other fields averaged 3.4%. Plant organic matter with polyphenol content> 2% will slow decay.

scholarly journals Microbial Respiration as Indicator of Soil Quality of Different Land Uses in Cienda, Gabas, Baybay City, Leyte

2017 ◽  
pp. 55-66
Author(s):  
Jessa May Malanguis ◽  
Cheryl Batistel ◽  
Marlito Jose Bande
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
Moisture Content ◽  
Soil Quality ◽  
Total Nitrogen ◽  
Agricultural Land ◽  
Microbial Respiration ◽  
Land Uses

Land use conversion affects soil ecosystem quality and balance, which can be reflected by microbial activities. This study was conducted to assess the effectiveness of microbial respiration as indicator of soil quality of different land uses, reforestation site, agricultural land and grassland, in Cienda, Gabas, Baybay City, Leyte. The amount of CO2 evolved after one, three and seven days of incubation was used to determine microbial respiration rate of different land uses and across relief. Relationship between microbial respiration on pH, organic matter, total nitrogen, and moisture content at field capacity were also examined. Results revealed that microbial respiration varies significantly among land uses with the highest rate observed in grassland while the lowest was in the reforestation site. Across relief, amount of CO2 released was significantly higher in the lower slope compared to the upper and the middle. The process tends to be significantly influenced by soil organic matter and moisture content. Results suggest that there is an inverse relationship between microbial respiration and organic matter, and a direct relationship with moisture content. High soil respiration in the grassland and in the lower topographic relief implies that the soil organic matter is converted into inorganic forms which are available for uptake by plants. A significant interaction between land use types and relief was also observed in both organic matter and moisture content leading enhanced microbial respiration. Land use and relief showed no significant effect on total nitrogen and soil pH.

Prospects for the use of carrot powder in the production of bread from triticale flour

2021 ◽  
Vol 30 (11) ◽  
pp. 46-49
Author(s):  
T.N. Tertychnaya ◽  
◽  
A.V. Drannikov ◽  
A.A. Shevtsov ◽  
N.V. Zasypkin ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Protein Content ◽  
Calcium Content ◽  
Point Of View ◽  
Plant Origin ◽  
Chemical Parameters ◽  
Biological Value ◽  
Physico Chemical ◽  
Bakery Industry

The analysis of modern achievements in the technology of producing bread from triticalе flour using additives of vegetable origin has shown that the finished product is not always characterized by a balanced chemical composition caused by a low content of micronutrients, organoleptic indicators, uneven porosity of the crumb. Obtaining bread of increased nutritional and biological value is achieved due to the use of carrot powder and triticalе flour of the T-70 variety. The bread prepared accordingto the proposed method has improved physico-chemical parameters, which ensures the production of products of sufficient volume with a more elastic crumb and well developed porosity. To evaluate the quality of bread, generally accepted methods were used in the bakery industry. Protein content was determined by Kjeldahl titrimetric metod (GOST 13496.4–93), phosphorus was determined by vanado molybdate metod (GOST 26657–97), calcium content was determined by trilonometry metode with fluorexone (GOST 26570–95). Bread obtained using additives of plant origin is of interest from the point of view of chemical composition and can be considered as a product of therapeutic and prophylactic purpose.

Susceptibility of Groundwater to Pesticide and Nitrate Contamination in Predisposed Areas of Southwestern Ontario

1995 ◽  
Vol 30 (3) ◽  
pp. 443-468 ◽  
Author(s):  
Wray Lampman
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Crop Rotation ◽  
Agricultural Land ◽  
Monitoring Program ◽  
Agricultural Practices ◽  
Crop Rotations ◽  
Pesticide Contamination ◽  
The Impact

Abstract Agricultural practices today employ a vast array of chemicals in large volumes in order to improve both the quantity and quality of our agricultural products. While it has long been recognized that runoff from agricultural land has the potential to degrade surface water quality, only recently has attention been focused on the effect of agricultural usage on groundwater. In order to study the effects of pesticides and nitrate usage on the quality of groundwater, in 1985 the Ontario Ministry of Environment and Energy began operating a groundwater monitoring program in southwestern Ontario. Data generated from this program, which utilized sample data collected from both wells and piezometers, indicate that in areas of heavy pesticide and nitrate usage, shallow groundwater is continuously testing positive for nitrate and a variety of pesticides. Factors which influence the number of positive incidents for pesticides are directly related to the persistence of the chemical, its method of application, and the amounts utilized. Soil types and depth to groundwater, although influencing the time of detection, do not govern the number of detection events. Changes in agricultural practices are also monitored to see if pesticide reduction, a variation in the method of application, crop rotations and an increase in soil organic matter could influence the levels of pesticide It was found that when chemicals of a low persistence were applied post emergent at the minimum recommended rate, pesticides were not detected in the groundwater. Crop rotations were also effective in reducing the level of pesticides in groundwater. Tillage practices and increases in soil organic matter were also effective in reducing pesticide contamination. It was found that when chemicals of a low persistence were applied post emergent at the minimum recommended rate, pesticides were not detected in the groundwater. Crop rotation and reduction in nitrate loadings were found to be the only effective methods to reduce nitrate loading to groundwater. It was also found that elevated levels of potassium and/or nitrate in groundwater serve as a reliable indicator of the groundwater susceptibility to pesticide contamination. Remedial action to alleviate the impact of pesticides and nitrates in groundwater must focus on the chemical usage patterns employed on the farm site and an overall reduction of the quantities of pesticides and nitrates utilized. These patterns must incorporate a well-designed program of crop rotation with the proper utilization of these chemicals on site.

scholarly journals Effect of agricultural lands afforestation and tree species composition on the soil reaction, total organic carbon and nitrogen content in the uppermost mineral soil profile

2014 ◽  
Vol 9 (No. 4) ◽  
pp. 192-200 ◽  
Author(s):  
O. Holubík ◽  
V. Podrázský ◽  
J. Vopravil ◽  
T. Khel ◽  
J. Remeš
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Czech Republic ◽  
Soil Organic Matter ◽  
Agricultural Land ◽  
Mineral Soil ◽  
Stand Age ◽  
Soil Reaction ◽  
The Czech Republic ◽  
C And N

Forests occupy one third of the world&rsquo;s land area and govern carbon (C) transfers and influence nitrogen (N) content in the biosphere. Afforestation leads to soil changes of specific dynamics, often accompanied by acidification. Especially at higher altitudes this effect is accelerated and increased with the stand age since forestation. The change in soil C and N content following afforestation is controlled by a number of factors, including: previous land use (grasslands, cropland, etc.), tree species, soil cultivation method, soil properties (clay content, pH), stand age, site management, topography, and climate. In the Czech Republic, large area changes in land use took place in the last centuries &ndash; forests covering roughly 20% in the 18<sup>th</sup> century currently occupy almost 34%, with still increasing tendencies. This paper compares basic soil properties (soil reaction, total soil organic carbon as well as total nitrogen contents) of the agricultural land and land afforested 40&ndash;60 years ago. The results confirmed the key role of afforestation in the change of soil organic matter dynamics after establishing new forests on the former agricultural lands in the uppermost mineral soil part of the Orlick&eacute; hory Mts. region in the Czech Republic. During that time, comparatively substantial changes in soil organic matter and nitrogen were registered. Afforestation considerably increased organic matter content in the studied A-horizons of different land use types. Soil development resulted in a high production of C and N pools under the forest stands, contrary to agricultural land. In general, afforestation caused significant soil acidification. The common tendency of higher acidity of forest soils compared to agricultural ones was documented in the studied case as well. The general tendencies of soil reaction and soil organic matter dynamics at the studied sites are comparable to those in other regions of the Czech Republic.

Issues on the Food and Feed Quality of Rye Crop in Sothern Hilly Area

2017 ◽  
Vol 11 (1) ◽  
pp. 24-27
Author(s):  
Iulia Nitu
Keyword(s):  
Food Industry ◽  
Agricultural Land ◽  
Animal Feed ◽  
Good Alternative ◽  
Point Of View ◽  
Hilly Area ◽  
Culture Area ◽  
Food And Feed ◽  
Harsh Conditions

Abstract Rye is an important cereal because it is a very good alternative for wheat in harsh conditions of culture (less productive agricultural land, dry area). This cereal could be used as row material in food industry processing and for animal feed. From this point of view, this project was aimed to identifying the culture area of rye in Southern Hilly Area of Romania and assess yield in terms of quality. The activity was held during 4 years of study, period which we found that the rye was grown only in some years of study and not all counties of the region. Considering the potential and importance of this cereal, required that making some studies of the crop rye quality in different regions of Romania.

scholarly journals ORGANIC POLLUTION INDEX IN THE EVALUATION OF THE QUALITY OF LAKE DOHOU, A SOURCE OF DRINKING WATER SUPPLY IN THE CITY OF DUEKOUE (WEST COTE DIVOIRE)

2021 ◽  
Vol 9 (12) ◽  
pp. 30-37
Author(s):  
Kouame Affoue Hortense ◽  
◽  
Kouame Kouame Martin ◽  
Djirieoulou Kemomadjehi Claver ◽  
Boussou Koffi Charles ◽  
...  
Keyword(s):  
Organic Matter ◽  
Agricultural Land ◽  
Oxygen Demand ◽  
Pollution Index ◽  
Organic Pollution ◽  
Chemical Parameters ◽  
Sampling Campaign ◽  
Group I ◽  
Hierarchical Ascending Classification ◽  
Nitrite Nitrate

The abiotic typology of the different sampling stations based on physico-chemical parameters and the assessment of the nutrient load and the relative contributions of the different nutrient sources to this surface water were analysed. Five physical and chemical parameters (temperature, dissolved oxygen, transparency, pH and conductivity) were measured in situ at each sampling campaign in Lake Dohou over a period of one year, once a month at seven (7) selected stations. Water samples were taken for subsequent determination of dissolved solids, biological oxygen demand for 5 days and nutrient salts (nitrite, nitrate, phosphate, ammonium).Thephysico-chemical characterisation revealed weakly mineralised water with average conductivities varying from 12.38 ±16.33 µS.cm-1 to 39.63 ±45.28 µS.cm-1 with high temperatures in the dry season. A hierarchical ascending classification (HAC) was used to group the stations into 3 groups. Group I (stations 6), due to its exposure to domestic discharges and leaching from agricultural land, is heavily loaded with organic matter and nutrients. The values of the pollution index express a high organic pollution at all the sampling stations. The water of Lake Dohou is highly loaded with organic matter and receives a very high amount of pollutant from the environment.

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