Temat: organic soil - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Charakterystyka procesu adsorpcji azotetrazolanu w gruntach organicznych na przykładzie torfu
Characteristic of adsorption of azotetrazolate on organic soil (peat)
Autorzy:: Borkowski, A.
Rydelek, P.
Szala, M.
Powiązania:: https://bibliotekanauki.pl/articles/400556.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: azotetrazolany
grunty organiczne
izotermy adsorpcji
torf
adsorption isotherms
azotetrazolate
organic soil
peat
Opis:: W prezentowanej pracy przedstawiono wyniki badań dotyczących procesu adsorpcji azotetrazolanu w gruntach organicznych. Sole azotetrazolu są przykładem heterocyklicznych związków organicznych, w których zawartość azotu w cząsteczce przekracza 80% masowych. Z tego względu, oraz z uwagi na wysoką stabilność termiczną, azotetrazole i ich sole są obecnie intensywnie badaną grupą związków wysokoenergetycznych o potencjalnie szerokich zastosowaniach zarówno w technice cywilnej jak i wojskowej. Nie mniej istotnym aspektem zainteresowań tymi związkami są zagadnienia związane z procesami migracji i kumulacji w środowisku naturalnym. Wyniki przeprowadzonych oznaczeń wskazują na względnie słabą adsorpcję azotetrazolanu w badanych gruntach organicznych. Maksymalne pokrycie powierzchni adsorbentu (torfu) monomolekularną warstwą azotetrazolanu wg modelu Langmuira wyniosło 0,016 mol kg-1, podczas gdy adsorpcja na węglu aktywnym (Merck) wyniosła 0,23 mol kg-1. Niska wartość maksymalnej ilości azotetrazolanu, jaką mogły zaadsorbować badane grunty może wiązać się z dysocjacją azotetrazolanu amonu w roztworze wodnym, czego efektem jest powstanie anionu azotetrazolanowego. Ujemne naładowanie tego jonu może być jedną z przyczyn utrudnionej adsorpcji tego związku do powierzchni cząstek glebowych.
The paper presents results of studies on the adsorption of azotetrazolate on organic soil. Azotetrazolate salts are examples of heterocyclic organic compounds, in which the nitrogen content in the molecule exceeds 80% by mass. Therefore, and due to the high thermal stability, azotetrazole and their salts are now intensively studied group of compounds with potentially broad applications in both civil engineering and the military, which may potentially be connected with environmental contamination of ground water. The results of presented studies indicate a relatively weak adsorption of azotetrazolate on the investigated organic soils. The low value of the maximum amount of adsorption of azotetrazolate probably is involved with the dissociation of ammonium azotetrazolate in aqueous solution, resulting in the formation of the azotetrazolate anion. The negative charge of this ion may be one reason more difficult adsorption of this compound on the surface of soil particles.
Źródło:: Inżynieria Ekologiczna; 2012, 29; 17-25
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Adsorpcja 3,6-dihydrazynotetrazyny (dhtz) w utworach torfowych
Adsorption of 3,6-dihydrazinotetrazine (dhtz) on organic soil (peat)
Autorzy:: Rydelek, P.
Borkowski, A.
Szala, M.
Powiązania:: https://bibliotekanauki.pl/articles/400380.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: dihydrazynotetrazyna
gleby organiczne
izotermy adsorpcji
torf
adsorption isotherms
3,6-dihydrazinotetrazine
organic soil
peat
Opis:: Coraz powszechniejsze poszukiwania nowoczesnych materiałów wysokoenergetycznych oraz idące w ślad za tym ich stosowanie na skalę techniczną pociąga za sobą istotne zagrożenia związane z możliwością skażenia środowiska naturalnego. Obecnie intensywnie badaną grupą materiałów wysokoenergetycznych są m.in. związki heterocykliczne zawierając azot w cząsteczce. Badania wpływu niektórych z tej grupy związków na wzrost i rozwój mikroorganizmów w glebie jednoznacznie wskazują na ich potencjalne możliwości znacznej modyfikacji aktywności biochemicznej w tym środowisku [Zerulla i wsp. 2001; Yu i wsp. 2007]. Wcześniejsze badania wpływu dihydrazynotetrazyny na aktywność mikrobiologiczną i enzymatyczną w glebie [Borkowski i Szala 2010; Borkowski i wsp. 2011] wykazały, że związek ten z jednej strony charakteryzuje się dużą toksycznością w stosunku do bakterii glebowych in vitro, z drugiej strony wykazuje nieznaczne tylko właściwości hamujące aktywność dehydrogenaz oznaczanych bezpośrednio w glebie. Prezentowane badania adsorpcji DHTz w wybranych glebach organicznych zostały wykonane z zastosowaniem modelu Langmuira oraz modelu Freundlicha. Umożliwiło to wyznaczenie podstawowych parametrów charakteryzujących proces adsorpcji DHTz. Otrzymane wyniki wskazują na znaczny proces sorpcji tego związku w badanych glebach, na co wskazuje parametr maksymalnego pokrycia powierzchni sorbentu wg modelu Langmuira, który wyniósł maksymalnie 0,079 mol kg-1 w badanych próbkach torfu (w zakresie stężeń równowagowych do 0.0004 mol kg-1). Warto dodać, że w badaniach porównawczych, dla węgla aktywnego (Merck) otrzymano wynik tylko cztery razy większy: 0,32 mol kg-1.
At present intensively studied group of high-energetic materials are heterocyclic compounds containing nitrogen in the molecule. Research on the influence of some of this group of compounds on the growth of microorganisms in the soil clearly indicate their potential role in significant modification of the biochemical activity in this environment. Earlier studies on 3,6-dihydrazinotetrazine and their impact on microbial and enzymatic activity in soil have shown that this compound, on the one hand is characterized by high toxicity in relation tosoil bacteria in vitro, but on the other hand one weakly affect the activity of dehydrogenases measured directly in the soil. This may suggest the significant adsorption of DHTz on the soil. In this paper the presented studies of adsorption of DHTz on selected organic soils have been carried out using the Langmuir model and Freundlich model. The results indicate a considerable process of adsorption of this compound on the studied soils, as indicated by the parameter of the maximum coverage of the adsorbent surface by adsorbate according to Langmuir model.
Źródło:: Inżynieria Ekologiczna; 2012, 29; 153-161
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The Effect of Different Rates of Biochar and Biochar in Combination with N Fertilizer on the Parameters of Soil Organic Matter and Soil Structure
Autorzy:: Juriga, M.
Šimanský, V.
Horák, J.
Kondrlová, E.
Igaz, D.
Polláková, N.
Buchkina, N.
Balashov, E.
Powiązania:: https://bibliotekanauki.pl/articles/125202.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biochar
soil organic matter
soil structure
nitrogen fertilizer
Opis:: Since biochar is considered to be a significant source of carbon, in this work we have evaluated the changes in soil organic matter (SOM) and soil structure due to application of biochar and biochar with N fertilization, and have considered the interrelationships between the SOM parameters and the soil structure. The soil samples were collected from Haplic Luvisol at the locality of Dolná Malanta (Slovakia) during 2017. The field experiment included three rates of biochar application (B0 – no biochar, B10 – biochar at the rate of 10 t ha^-1, B20 – biochar at the rate of 20 t ha^-1) and three levels of N fertilization (N0 – no nitrogen, N160 – nitrogen at the rate of 160 kg ha^-1, N240 – nitrogen at the rate of 240 kg ha^-1). The rate of biochar at 20 t ha^-1 caused an increase in the organic carbon (C_org) content. The combination of both rates of biochar with 160 and 240 kg N ha^-1 also caused an increase in C_org. In the case of B20 the extractability of humic substances carbon (C_HS) was 17.79% lower than at B0. A significant drop was also observed in the values of the extraction of humic acids carbon (C_HA) and fulvic acids carbon (C_FA) after the addition of biochar at a dose of 20 t ha^-1 with 160 kg N ha^-1. However, both rates of biochar had a significant effect at 240 kg N ha^-1. After application of 20 t ha^-1 of biochar the content of water-stable macro-aggregates (WSA_ma) significantly increased compared to control. This rate of biochar also increased the mean weight diameter (MWD_W) and the index of water-stable aggregates (Sw) and decreased the coefficient of vulnerability (Kv). The biochar at a rate of 20 t ha^-1 with 240 kg N ha^-1 the value of MWD_W increased and value of Kv decreased significantly. The contents of C_org and C_L correlated positively with WSA_ma, MWD_W and Sw and negatively with WSA_mi and Kv. The extraction of C_HA and C_FA was in negative relationship with MWD_W. We conclude that the application of biochar and biochar combined with N fertilizer had a positive influence on SOM and soil structure.
Źródło:: Journal of Ecological Engineering; 2018, 19, 6; 153-161
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effect of Soil Management Practices on the Mineralization of Organic Matter and Quality of Sandy Soils
Autorzy:: Kobierski, Mirosław
Cieścińska, Bogumiła
Cieściński, Jacek
Kondratowicz-Maciejewska, Krystyna
Powiązania:: https://bibliotekanauki.pl/articles/125332.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: soil organic carbon
Carbon Management Index
macronutrients
Opis:: The aim of the study was to determine the effect of soil management systems of Brunic Arenosols on the total content of organic carbon and its fraction susceptible to oxidation in comparison with the soils under forests. The samples for study were taken from the humus horizon at the sites located in the forests and soils from little midforest cultivated fields (hunting plots). The agrotechnical treatments increased the content of the plant-available forms of P, K and Mg in the soils of most hunting plots in comparison to the forest soils. In the arable horizon of the hunting plots, t a varied total content of organic carbon and its fraction susceptible to oxidation was found. The cultivation of soil in the hunting plots caused a decrease in the content of total organic carbon as well as its labile and non-labile fraction. In order to evaluate the carbon transformation in the soil of the cultivated plots against the forest (reference soil), the Carbon Management Index (CMI) was used. The decay rate of soil organic matter in a natural forest was lower than in the agricultural fields. A long-term tillage of Brunic Arenosols contributed to the degradation of the pool of organic carbon in sandy-textured soil.
Źródło:: Journal of Ecological Engineering; 2020, 21, 4; 217-223
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Suitability of Carbon and Nitrogen Management Indices for the Evaluation of Soil Organic Matter under Different Soil Management Practices in a Productive Vineyard
Autorzy:: Šimanský, Vladimír
Horváthová, Jarmila
Jonczak, Jerzy
Polláková, Nora
Powiązania:: https://bibliotekanauki.pl/articles/1955422.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: vineyard
soil organic matter
carbon index
nitrogen index
Opis:: Soil organic matter (SOM) is considered to be the most important part in the soil. C and N and their forms are most often used to evaluate SOM. In the last decades, C indices have begun to be used to assess soil quality for C changes in SOM due to the different soil management. Since C cycle is closely related to N, there is an assumption that N indices (derived in the same way as C indices) will be sensitive to N changes in SOM under the different soil management. The objective of the study was to evaluate the extent of C and N indices on C and N changes in SOM (in Rendzic Leptosol) under the different soil management practices (1. G: grass and no fertilization – as control; 2. T: tillage; 3. T+FYM: tillage + farmyard manure; 4. G+NPK3: grass + NPK 125–50–185 kg ha-1; 5. G+NPK1: grass + NPK 100–30–120 kg ha-1) in a productive vineyard (Nitra-Dražovce; Slovakia) during the period of 13 years. The results showed that the soil organic carbon (SOC) was reduced by 26% compared to G because of intensive cultivation on one hand, but on the other hand, in T + FYM treatment no significant changes in SOC over the 13 years of the experiment were observed. A higher labile carbon (CL) content was in G+NPK3 then follows: G+NPK1 > G > T+FYM > T for topsoil (0-30 cm). In topsoil, carbon lability increased after a higher level of mineral fertilization, while in subsoil (30-60 cm) after intensive cultivation. The values of CPI for topsoil decreased in the following order: G+NPK1 > T+FYM > G+NPK3 > T. Based on CMI values, intensive C changes in the SOM due to the soil management practices were observed in T treatment. The highest accumulation of carbon and decomposable organic matter occurred in G+NPK3. Incorporation of FYM, and both rates of NPK increased values of NMI by 45, 47 and 36% respectively compared to intensive tilled treatment for topsoil. The highest values of the NPI were detected because of farmyard manure application and mineral fertilization at a higher rate (NPK3) for topsoil and because of intensive cultivation between vine rows as well as plowing of FYM for subsoil.
Źródło:: Journal of Ecological Engineering; 2021, 22, 7; 150-162
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Occurrence of Sclerotium rolfsii Inducing Sugar Beet Root Rot and its Sustainable Management by Acting on Soil Fertility in Western Morocco
Autorzy:: Rerhou, Badr
Mosseddaq, Fatema
Ezzahiri, Brahim
Moughli, Lhoussaine
Mokrini, Fouad
Bel-Lahbib, Sanae
Namr, Khalid Ibno
Powiązania:: https://bibliotekanauki.pl/articles/24201665.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Sclerotium rolfsii
soil fertility
soil organic matter
sugar beet
Doukkala
Morocco
Opis:: In Morocco, and particularly in the Doukkala irrigated perimeter, sugar beet rot caused by Sclerotium rolfsii is a major limiting factor for the productivity of this crop. The objective of this study was to identify the relationship between the frequency of Sclerotium rolfsii infestation and the quantity of viable sclerotia in the soil on the one hand, and with the different physicochemical parameters of the soil in cropped sugar beet fields on the other hand. In total, 1794 soil samples were collected during a four years period in the whole irrigated perimeter. These samples were analyzed for their sclerotial content. In addition, laboratory analysis of physico-chemical parameters was performed for 94 sugar beet fields in 2019. The study showed that the relative frequency of infestation by Sclerotium rolfsii and the number of viable sclerotia oscillate inversely and present a relative frequency of 45.7, 57.3, 42.3 and 49.5% for 2016, 2017, 2018, and 2019, respectively, and a number of sclerotia of 2.01, 1.65, 2.11 and 1.25 in 250 g of soil for 2016, 2017, 2018 and 2019, respectively. The study showed that the number of viable sclerotia was positively correlated with clay and silt content, soil pH, Mg, K, Fe, Cu, and Mn and negatively correlated with sand, SOM, EC, CaCO3, Zn, B, Ca, NH4 and NO3 contents. The observed decrease in viable sclerotia between 2016 and 2019 can be attributed to the decrease of Fe and Cu in the soil. It is possible that SOM intervenes with its humified fraction in the neutralization of the redox potential of Feand Cu which are involved in the production of sclerotia under oxidative stress. The good control of fertilization, especially organic, allows limiting the production of sclerotia of Sclerotium rolfsii. Data analysis allowed obtaining a significant prediction model of the number of viable sclerotia in the soil according to the physicochemical soil parameters with (R2 = 0.95 at P<0.0001) for only infested fields and (R2 = 0.87 at P<0.0001) for all the fields.
Źródło:: Journal of Ecological Engineering; 2023, 24, 4; 54--70
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Fertilization and Application of Different Biochar Types and their Mutual Interactions Influencing Changes of Soil Characteristics in Soils of Different Textures
Autorzy:: Šimanský, Vladimír
Šrank, Dušan
Jonczak, Jerzy
Juriga, Martin
Powiązania:: https://bibliotekanauki.pl/articles/124211.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: soil management
Effeco
soil organic matter
physical characteristics
soil nutrient regime
soil sorption
Opis:: If we want to develop farming on soil effectively and ecologically, we have to know the soil characteristics, the reasons for the potential low fertility and the ways how to eliminate them. Only this approach allows the rational utilization of the soil fund and achievement of the high effectiveness of the costs needed for the stabilization and increase of fertility and land capability. Recently, many scientific teams have focused their attention on the biochar, a lot of recommendations have been published which are dealing with its application into soil. However, the principal attention has been drawn to the impact of biochar on the particular soils and under the particular conditions. Far less information has been presented about the mutual interactions between the further significant agronomical factors in the combination with biochar. In this primary study, we analyze two new experiments established in the southwest part of Slovakia at the 1 Dolná Streda (sandy soil) and 2 Veľké Uľany (loamy soil) Localities. We discussed (1) the impact of the individual factors on the changes of soil characteristics, and (2) the impact of the individual interactions, such as: soil class – fertilization – biochar on the changes of the soil characteristics. The results indicated that the most significant factor, which influences the monitored soil parameters, is the soil class. The fertilization proved to be a factor which has a negative impact on the humus parameters; on the other hand, it improved the soil sorption. Biochar increased the content of the organic substances in soil and also its environmental effect of retention and immobilization of harmful elements and its positive effect on the soil structure was indicated. The highest frequency of the interactions between the monitored parameters related to the changes of soil characteristics was recorded in the combination fertilization x biochar, and also the soil class x fertilization x biochar.
Źródło:: Journal of Ecological Engineering; 2019, 20, 5; 149-164
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Geospatial Assessment of Soil Organic Matter Variability at Sidi Bennour District in Doukkala Plain in Morocco
Autorzy:: Bouasria, Abdelkrim
Ibno Namr, Khalid
Rahimi, Abdelmejid
Ettachfini, El Mostafa
Powiązania:: https://bibliotekanauki.pl/articles/2028049.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: soil organic matter
Doukkala Plain
spatial interpolation
geostatistics
soil quality
irrigated perimeter
Morocco
Opis:: Understanding the spatial variability of soil organic matter (SOM) is critical for studying and assessing soil fertility and quality. This knowledge is important for soil management, which results in high crop yields at a reduced cost of crop production and helps to protect the environment. The benefits of an accurate interpolation of SOM spatial distribution are well known at the agricultural, economic, and ecological levels. It has been conducted this study for comparing and analyze different spatial interpolation methods to evaluate the spatial distribution of SOM in Sidi Bennour District, which is a semi-arid area in the irrigated scheme of the Doukkala Plain, Morocco. For conding this study, it was collected 368 representative soil samples at a depth of 0–30 cm. A portable global positioning system was used to obtain the location coordinates of soil sampling sites. The SOM spatial distribution was performed using four interpolation methods: inverse distance weighted and local polynomial interpolation as deterministic methods, and ordinary kriging and empirical Bayesian kriging as geostatistical methods. High SOM levels were concentrated in vertisols, and low SOM levels were observed in immature soils. The average SOM value was 1.346%, with moderate to high variability (CV = 35.720%). A low SOM concentration indicates a continuous possibility of soil degradation in the future. Ordinary kriging yielded better results than the other interpolation methods (RMSE = 0.395) with a semivariogram fitted by an exponential model, followed by inverse distance weighted (RMSE = 0.397), empirical Bayesian kriging (RMSE = 0.400), and local polynomial interpolation (RMSE = 0.412). Soil genetics and the strong influence of human activity are the major sources of SOM spatial dependence, which is moderate to low. Low SOM content levels (< 1.15%) were present in the southwestern and eastern parts of the digital map. This situation calls for the implementation of specific soil recovery measures.
Źródło:: Journal of Ecological Engineering; 2021, 22, 11; 120-130
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The Effect of Different Doses of N Fertilization on the Parameters of Soil Organic Matter and Soil Sorption Complex
Autorzy:: Šimanský, V.
Kováčik, P.
Jonczak, J.
Powiązania:: https://bibliotekanauki.pl/articles/124019.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: nitrogen
fertilization
Luvisol
soil organic matter
hydrolytic acidity
cation exchange capacity
Opis:: Mineral N fertilizer application may have an effect on soil organic matter and other soil parameters. Therefore, we studied the effects of different doses of N fertilization on soil organic matter and chemical properties of Haplic Luvisol in the locality of Dolná Malanta (Slovakia) during 2014–2016. Soil samples were collected from the plots exposed to the following treatments: 1. N0 – no N fertilization as control during 2014–2016, 2. N40 – N fertilizer at the rate of 40 kg N ha^–1 in 2014 and 2016, 3. N80 – N fertilizer at the rate of 80 kg N ha^–1 in 2014 and 2016, 4. N160 – N fertilizer at the rate of 160 kg N ha^–1 in 2015, and 5. N240 – N fertilizer at the rate of 240 kg N ha^–1 in 2015. The results showed that in N80 the soil organic carbon (SOC) content increased by 32% in comparison to N0. The addition of 80 kg ha^-1 of N significantly decreased the humic substances (HS) content in the soil by 16% compared to N0. The higher doses of N fertilization 80 rather than 40 kg ha^-1 as well as 240 rather than 160 kg ha^-1 significantly decreased humus stability. The addition of N fertilization decreased the average values of soil pH. Values of hydrolytic acidity (Ha) increased by 41% and 46% in N40 and N80, respectively than N0, but on the other hand, this one decreased by 36% and 27% in N160 and N240, respectively in comparison to N0. Positive statistically significant correlations were determined between soil pH and SOC in N40 and N80 treatments. The increase of soil pH was connected with higher humus quality in N160 and N240. Negative correlations between humic acids (HA) and sum of basic cations (SBC) and cation exchange capacity (CEC) were observed in N80 < N160 < N240 treatments. Higher values of fulvic acids corresponded with lesser CEC in N80 and N160 treatments. In N160, with increased humus quality, CEC significantly decreased. The same effect was observed in N240. In addition, in N240, we also observed that with increased HA:FA ratio SBC and base saturation significantly decreased.
Źródło:: Journal of Ecological Engineering; 2017, 18, 3; 104-111
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Effect of plant Communities and Ecological Parameters on Soil Organic Carbon Stocks in the Mamora Forest, Morocco
Autorzy:: Boujraf, Amal
Dallahi, Youssef
Dahmani, Jamila
Orlando, Collins Ashianga
Douira, Allal
Powiązania:: https://bibliotekanauki.pl/articles/24201779.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: SOC stock
soil organic carbon
carbon sequestration
plant community
ecological parameter
Mamora forest
Morocco
Opis:: Several studies on the assessment of soil organic carbon (SOC) stocks have been carried out at the global level. However, reliable information on SOC stocks is not readily available at the regional level. In addition, very few studies have assessed the factors responsible for the variation of SOC stocks, in particular the effect of plant communities. For this purpose, the main objective was to analyze the effects of three plant communities and ecological parameters on the SOC stock in the Mamora forest. Specifically, the authors looked to examine the relationships between SOC stock and plant communities and to define the main parameters that directly influence SOC stock. Ten soil profiles with three replications were sampled at each plant community, from which SOC stock was determined. To assess the effect of plant communities on SOC stocks, phytosociological surveys were carried out according to the phytosociological stigma method developed by Braun-Blanquet. The results show that the SOC stocks in cork oak soils are characterized by high variability, with values ranging from 55 t•ha-1 to 95 t•ha-1. Indeed, the findings of this study showed that the SOC stocks fluctuated significantly with plant communities. In addition, SOC stocks were also affected by the interactions between plant communities, the amount of litter and the density of the cork oak stand. These outcomes of this study highlight the critical need to incorporate community-specific carbon values into future carbon sequestration modeling.
Źródło:: Journal of Ecological Engineering; 2023, 24, 5; 128--136
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Identifying Key Parameters Influencing Soil Quality at Various Depths in Tram Chim National Park, Dong Thap Province, Vietnam
Autorzy:: Giao, Nguyen Thanh
Nhien, Huynh Thi Hong
Dan, Truong Hoang
Ni, Duong Van
Powiązania:: https://bibliotekanauki.pl/articles/2202379.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: soil quality
national park
organic matter
alkaline soil
multivariate analysis
Opis:: This study used multivariate statistics including cluster analysis (CA) and principal component analysis (PCA) to evaluate the variability and key indicators causing changes in soil quality in Tram Chim National Park, Dong Thap province, Vietnam. Soil samples were collected in the dry season at the habitats of Ischaemum rugosum (CM), Panicum repens (CO), Nelumbo nucifera (LS), Eleocharis dulcis (NO), Oryza rufipogon (LM), Rice field (RL), Melaleuca cajuputi (T) in two layers: A (0–20 cm) and B (20–40 cm). The parameters of pH, total nitrogen (TN), total phosphorus (TP), total acidity (TA), organic matter (OM), total iron (Fe) and exchanged aluminum (Al3+) were used to assess soil quality. The results showed that soil pH was low in both A and B layers. Fe and Al were both high, and the concentrations of these metals in layer A were higher than those in layer B. The OM content was medium while the TN and TP levels were very low. Most of the soil quality indicators tended to decrease with the depth (except for TA). The results of CA analysis showed that there was almost no major change in soil quality between the two soil layers; however, the soil quality in rice field habitat was different from other habitats. The cause may be due to human impact in adding fertilizers/pesticides during farming practices. The PCA results showed at least five influencing factors, explaining 99.7% and 99.9% of soil quality variation in A and B layers. The Al3+, TA, OM, and TP parameters had the main influence on the soil quality of layer A. Meanwhile, the pH, Al3+, TA, TN, Fet indicators had influence on the soil quality of layer B. These indicators need to be future surveyed to assess the evolution of soil quality in the study area.
Źródło:: Journal of Ecological Engineering; 2023, 24, 2; 81--91
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Zbiorowiska grzybów micromycetes jako wskaźnik zmian wilgotnościowych murszejącej gleby z doliny Supraśli
Fungal communities micromycetes as an indicator of humidity changes in organic muck soil from Suprasl valley
Autorzy:: Tyszkiewicz, Z.
Banaszuk, P.
Powiązania:: https://bibliotekanauki.pl/articles/400255.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: grzyby glebowe
gleby organiczne murszowe
soil fungi
organic-muck soils
Opis:: Badano glebę należącą do podtypu gleb organicznych limno-murszowych. Znajdowała się ona na zmeliorowanych, obecnie nieużytkowanych, łąkach w dolinie Supraśli. Badaniami mikologicznymi objęto mursz poziomu darniowego i poddarniowego oraz podścielającą go warstwę mułu. Celem pracy było określenie zmian w strukturach zbiorowisk grzybów micromycetes otrzymanych z murszejącej gleby mułowej w dwu kolejnych latach. Podjęto próbę wyjaśnienia związku między glebą organiczną, która uległa decesji pod wpływem odwodnienia siedliska, a zbiorowiskami zasiedlających ją grzybów. Do izolacji grzybów micromycetes wybrano metodę płytek glebowych Warcupa w modyfikacji Mańki. Analiza wspólnych cech (podobieństwa) między zbiorowiskami grzybów została przeprowadzona na podstawie współczynnika Jaccarda. W sumie otrzymano 153 kolonie i 31 gatunków grzybów micromycetes. Podobieństwo między zbiorowiskami grzybów zasiedlających glebę w kolejnych, dwu latach badań układało się na zróżnicowanym poziomie. Najwięcej wspólnych cech – podobieństwo wynoszące 50% – wykazały zbiorowiska grzybów zasiedlające poziom poddarniowy. Natomiast zbiorowisko zasiedlające w 2013 roku niezmienioną procesem glebotwórczym warstwę mułu nie wykazało obecności ani jednego wspólnego gatunku ze zbiorowiskami grzybów zasiedlającymi utwory organiczne pobrane w 2012 roku. Stwierdzono, że analizowane zespoły grzybów micromycetes są niestabilne w swej strukturze jakościowej. Świadczy to o tym, że nawet niewielkie zmiany siedliskowe przyczyniają się do powstawania zbiorowisk o odmiennych cechach jakościowych (składzie gatunkowym) i ilościowych. Wpływa to jednocześnie na niskie podobieństwo (niewiele cech wspólnych) między zbiorowiskami grzybów zasiedlającymi zmieniające się w profilu glebowym utwory organiczne analizowanej gleby, zarówno w danym roku badawczym, jak i w kolejnych latach.
The analysis included soil that represented the type of organic muck soils. The study involved the levels created by the muck and the organic layer formed by a mule track. The aim of the study was to determine changes in the structures of fungal communities micromycetes, which were received from organic muck soil in two subsequent years. The authors have attempted to clarify the relationship between soil organic, which was the process of humification and mineralization of organic matter, and communities of fungi colonizing that organic soil. The method for the isolation of fungi micromycetes selected Warcup soil tiles, which was modified by Mańka. The similarity between the communities of fungi determined using Jaccard coefficient. In total 153 colonies and 31 species of fungi micromycetes were obtained. The similarity between the communities of fungi in the soil in the subsequent two years of research, was of a different level. The highest similarity, amounting to 50%, showed a fungal communities colonizing the organic layer formed by a mule track. In 2013 community inhabiting unchanged layer of silt did not have in common with any of the communities of fungi present in organic soil that was sampled in 2012. The results allow to conclude that the analyzed fungi micromycetes are unstable in its qualitative structure. Even small changes in habitat contribute to the formation of communities with different quality characteristics (species composition) are also quantitative – turnout rates of the individual species and all communities. This affects low similarity between communities of fungi inhabiting different organic soils in a research year as well as in subsequent years.
Źródło:: Inżynieria Ekologiczna; 2016, 47; 163-169
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Nutrients Assessment of Tropical Soils Around a Mega Cement Factory in Southwest Nigeria
Autorzy:: Oludoye, O. O.
Ogunyebi, L. A.
Powiązania:: https://bibliotekanauki.pl/articles/123225.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: nutrient assessment
cement dust
total organic carbon (TOC)
soil protein
Opis:: Cement production is renowned for particulate contamination of the environment because of high dust emissions and heavy metals that later deposited in soils, serving as a sink. This study investigated the effect of cement dust pollution on some selected soil nutrients (phosphorous, protein, carbon and nitrogen) of the soil surface around Lafarge cement factory, Sagamu, Ogun State, Nigeria. Fifteen (15) composite topsoil samples of the soil surface were randomly collected in the eastern, western, and southern axes of the factory while control samples were collected 15 km from the factory. The samples were taken from a depth of 0 to 15 cm and analyzed for chemical, physical and microbiological properties. Data were analyzed with ANOVA and Duncan Multiple Range Test. The results showed that Total Organic Nitrogen (TON), Total Organic Carbon (TOC) and Heavy Metals decreased with increasing distance from the cement factory while there was increase in the amount of Soil Protein and Soil Phosphorous. In conclusion, the inverse correlation between most of these heavy metals, the pH, and the activities of the soil nutrients are indicative that pollution caused by cement production exhibit a significant effect on soil nutrients and this may invariably affect the quality and condition of the soil of the area.
Źródło:: Journal of Ecological Engineering; 2017, 18, 2; 21-28
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Habitat Conditions of Canadian Goldenrod in a Selected Region of Eastern Poland
Autorzy:: Bielecka, A.
Królak, E.
Biardzka, E.
Powiązania:: https://bibliotekanauki.pl/articles/124501.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: soil
acidity
organic carbon
total nitrogen
total phosphorus
magnesium
calcium
Opis:: The Canadian goldenrod Solidago canadensis (L) is an invasive species in Poland. It occurs both in habitats only weakly impacted by anthropogenic factors as well as in habitats subjected to intensive transformations by humans. The aim of this study was to characterise the habitats of S. canadensis in Mińsk Mazowiecki and in out-of-town areas. It has been shown, based on an analysis of the principal soil properties, that the sites where S. canadensis was found had clayey-sandy soil and a C/N ratio indicative of medium and high soil degradation. Canadian goldenrod was found at sites with a diverse content of phosphorus, calcium and magnesium in soil, as well as a diverse soil pH, indicative of a strongly acidic, acidic and alkaline character of the soil.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 76-81
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Rozmieszczenie profilowe grzybów micromycetes w wybranej murszejącej glebie organicznej powstałej z mułów
Profile location of fungi micromycetes in selected organic-muck soil formed from mud
Autorzy:: Tyszkiewicz, Z.
Powiązania:: https://bibliotekanauki.pl/articles/401859.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: grzyby glebowe
gleby organiczne murszowe
soil fungi
organic-muck soils
Opis:: Analizą mikologiczną objęto dwa punkty badawcze reprezentujące typ gleb organicznych murszowych, podtyp organicznych limno-murszowych. Znajdowały się one w dolinie Supraśli na zmeliorowanych, nieużytkowanych łąkach położonych przy północnej granicy Białegostoku na obszarze gminy Wasilków. Gleby na obu stanowiskach cechowały się podobną budową profilową. Celem prowadzonych badań było poznanie zbiorowisk grzybów micromycetes zasiedlających różne głębokości profilu glebowego murszejącej gleby organicznej wytworzonej z utworów mułowych. Określono również podobieństwo między zbiorowiskami grzybów zasiedlającymi różne głębokości analizowanych gleb. Próby do badań pobrano w lipcu 2012 roku a pochodziły z poziomów tworzonych przez mursz (poziomu darniowego i poddarniowego) oraz z warstwy organicznej tworzonej przez utwór mułowy. Uzyskano 6 zbiorowisk grzybów glebowych, których całkowita frekwencja wynosiła 171 sztuk. Były one reprezentowane przez 30 różnych gatunków. Najliczniejsze zbiorowiska otrzymano z murszu tworzącego poziomy darniowe. W miarę zwiększania się głębokości w profilu glebowym liczebność kolonii grzybów a także ich gatunków malała. Najmniej liczne ilościowo i jakościowo okazały się zbiorowiska zasiedlające warstwy niezmienionego procesem murszenia mułu. Wskazuje to, że rozwój i nasilenie procesu murszenia przyczynia się do rozwoju grzybów micromycetes. Gatunkiem, który miał największe znaczenie w przeobrażeniach substratu organicznego okazał się Helicosporium vegetum Nees oraz gatunek nie zidentyfikowany, ponieważ nie tworzył zarodników.
Mycological analysis included two research stations, which represented the type of organic muck soils, subtype Limnic Sapric Histosol. These soils were characterized by a similar structure of the profile. They were located in the valley of Supraśl on reclaimed meadows, which were located near Bialystok. The aim of the study was to investigate the fungal communities colonizing micromycetes different depths of organic profile soil. The author also determined the similarity between the communities of fungi inhabiting different depths of soil analyzed. The samples were collected in July 2012. The samples were collected from the levels created by the muck and the organic layer formed by a mule track. In total, 6 soil fungal communities with a total attendance was 171 units were obtained. They were represented by 30 different species. The largest communities were obtained from level turf. With increasing depth in the soil profile and the number of fungal colonies decreased their species variability. Quantitatively and qualitatively smallest were communities that inhabited the layer of mud. This indicates that the development and intensity of soil transformation effect on the growth of fungi micromycetes. The species, which was the most important transformations in organic substrate was Helicosporium vegetum Nees.
Źródło:: Inżynieria Ekologiczna; 2015, 43; 62-67
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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