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Wyświetlanie 1-10 z 252
Tytuł:
Heavy Metals Effects on Agricultural Soil Enzyme Activities of Fez, Morocco
Autorzy:
Zerrari, Naoual
Rais, Naoual
El Ghachtouli, Naima
Kouchou, Aziza
Ijjaali, Mustapha
Powiązania:
https://bibliotekanauki.pl/articles/24201777.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
agricultural soil
soil enzyme activity
heavy metals
ecological risk assessment
Saiss plain
Opis:
Enzyme activities in soils are influenced by soil characteristics and pollutants and could be indicator of soil quality. This study was undertaken to determine the relationship between physicochemical characteristics, heavy metals contents and enzyme activities (EA) in agricultural soils in the Saiss plain (Morocco). The analysis of six agricultural soil samples (sites 1–6), collected from urban and periurban agricultural soils of Fez region, showed that soils are generally alkaline with high CaCO3 that rich 46%, EC (525–703 μS/cm), rich in organic matter (3.14–5.80%). The Cr, Cu, Ni, Pb and Zn concentrations in the studied area are generally greater than the Upper Continental Crust, with a deceasing order: Zn> Cr> Pb> Cu> Ni. Geo-accumulation index showed that soils are unpolluted to moderately polluted except site 5 and site 6 that are moderately to strongly polluted by respectively Cu, Pb, Zn and Pb. Potential ecological rіsk factors were below 40, which means low potential ecological rіsk except site 5 that has moderate potential ecological risk by Cu and Pb. Soil potential ecological risk indices were found <150 indicating low ecological risk. According to this index, Cu caused more serious pollution than the other elements. The enzyme actіvities of the sіx soil samples showed almost the similar ranges of values. These EA showed the highest values in site 5.The sensіtivity of soil enzyme to heavy metals were observed UREA>PHOS>GALA. Pearson’s correlation showed significant posіtive correlatіon between studied soil EA and between these EA and heavy metals (Cu, Pb and Zn), and significant negative correlatіon between EA and heavy metals (Cr and Ni). The results of this study enrich and provide data base of the impact of heavy metals on soil enzyme actіvities in agrіcultural soils in the Saiss plain.
Źródło:
Journal of Ecological Engineering; 2023, 24, 5; 144--154
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of metals bioavailability in agricultural soil treated with wood ash
Autorzy:
Jakubus, M.
Tatusko, N.
Powiązania:
https://bibliotekanauki.pl/articles/905458.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Opis:
In the present work, we aimed to study the effect of quantitative changes of micronutrients (Cu, Zn, Mn) in soil and plants caused by wood ash applied into the soil in increasing doses. A pot experiment with medium textured soil, white mustard as a test plant and six amendment treatments (doses of wood ash: 0, 1, 5, 10, 20, 30 Mg·ha⁻¹) was performed. Total contents of Cu, Zn and Mn were determined in soil and plant samples. Single (DTPA and HCl) and sequential (BCR) extractions were used to evaluate the available amounts of metals and their distribution in fractions. A plant’s ability to accumulate metals from soils was estimated using the bioconcentration factor (BCF), which is defined as the ratio of metal concentration in the plants to that in soil. The increasing doses of wood ash increased total and available contents of trace elements, especially Cu and Mn. The distribution of metals among particular fractions depended mainly on their geochemical character. The highest content of Cu was found in the reducible and oxidisable fractions, whereas, the greatest amounts of Zn and Mn were in the exchangeable and reducible fractions, and the lowest in the oxidisable fraction. Despite small wood ash influence on metal distribution in the individual soil fractions, increasing doses of wood ash increased the amounts of Cu, Zn, Mn in easily soluble fractions, which are potentially available to plants. As a result of wood ash increasing doses application, the higher amounts of Cu, Zn and Mn in plant tissues were found. However, only in the case of Zn, the value of BCF indicated on such accumulation in the plants.
Źródło:
Polish Journal of Soil Science; 2016, 49, 2
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Atmospheric Deposition Effects on Agricultural Soil Acidification State — Key Study : Krupanj Municipality
Autorzy:
Čakmak, D.
Beloica, J.
Perović, V.
Kadović, R.
Mrvić, V.
Knežević, J.
Belanović, S.
Powiązania:
https://bibliotekanauki.pl/articles/204744.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
soil state
acidification
acidity class
VSD model
sustainability
stan gleby
zakwaszenie
klasa kwasowości
model VSD
trwała wydajność
Opis:
Acidification, as a form of soil degradation is a process that leads to permanent reduction in the quality of soil as the most important natural resource. The process of soil acidification, which in the first place implies a reduction in soil pH, can be caused by natural processes, but also considerably accelerated by the anthropogenic influence of excessive S and N emissions, uncontrolled deforestation, and intensive agricultural processes. Critical loads, i.e. the upper limit of harmful depositions (primarily of S and N) which will not cause damages to the ecosystem, were determined in Europe under the auspices of the Executive Committee of the CLRTAP in 1980. These values represent the basic indicators of ecosystem stability to the process of acidification. This paper defines the status of acidification for the period up to 2100 in relation to the long term critical and target loading of soil with S and N on the territory of Krupanj municipality by applying the VSD model. The Inverse Distance Weighting (IDW) geostatistic module was used as the interpolation method. Land management, particularly in areas susceptible to acidification, needs to be focused on well-balanced agriculture and use of crops/seedlings to achieve the optimum land use and sustainable productivity for the projected 100-year period.
Źródło:
Archives of Environmental Protection; 2014, 40, 2; 137-148
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical agricultural soil map of Poland at the scale of 1:500 000
Autorzy:
Budzynska, K
Stuczynski, T.
Zaliwski, A.
Powiązania:
https://bibliotekanauki.pl/articles/1450546.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
natural environment
soil map
Polska
soil
numerical map
soil property
landscape architecture
terrestrial ecosystem
soil cover
Opis:
In Poland, soil cover has been identified in detail in terms of spatial variability which resulted in soil records that comprise data on soil properties put in order according to the criteria of administrative and physiographic division. These data were not available in the numerical format till quite recently which meant that their application did not fully meet present requirements of agriculture, environment and landscape conservation, modification of functions, etc. The newly created numerical soil map at the scale of 1.500 000 corrects this difficulty. The main information content of the map at the scale of 1:500 000 covers complexes of soil usefulness and soil types and subtypes. Basic characteristics such as granulometric composition, origin of the parent rock and land use attributes, i.e.: forest, grassland, arable land, waters or barren land, are also included. Apart from the soil coverage, the map contains 13 topographic coverages.
Źródło:
Acta Agrophysica; 2001, 50; 271-274
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing the intra-annual variability of agricultural soil losses: a RUSLE application in Nord-Pas-de-Calais, France
Autorzy:
Nouaim, Wafae
Rambourg, Dimitri
Merzouki, Mohamed
El Harti, Abderrazak
Karaoui, Ismail
Powiązania:
https://bibliotekanauki.pl/articles/2073744.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
agriculture
Nord-Pas-de-Calais
Revised Universal Soil Loss Equation
RUSLE
water erosion
Opis:
The control of water erosion is an important economic and societal challenge. Reduction of the agronomic potential of the parcels, muddy flows, siltation of dams are harmful consequences that mobilize farmers, water managers, local authorities and scientific researchers. This study focuses on mapping and quantifying seasonal soil losses in the territory of the former Nord-Pas-de-Calais administrative region, using the Revised Universal Soil Loss Equation (RUSLE) which incorporates five factors: rainfall erosivity, soil erodibility, topography, land use and erosion control practices. The seasonal (3-months) time scale is chosen to better account for the parameters governing the soil water erosion, especially rainfall and vegetation cover, that show great asynchronous intra-annual variability. Also, high resolution data concerning agricultural plots allows to evaluate which type of culture are the more subject to soil losses. In Nord-Pas-de-Calais, water erosion occurs almost ubiquitously, but the areas characterized by steep slopes are the most at risk (Artois Hills and Flanders), with loss rates up to 54 t∙ha-1∙y-1. The majority of erosion occurs during fall (46% of the computed annual losses of 1.69∙Mt), on plots left bare after harvest (especially corn and beets crops). The study also demonstrates that extending the intercrop technique over the region, and therefore maintaining a fall and winter cover, could reduce the soil losses by 37%.
Źródło:
Journal of Water and Land Development; 2022, 52; 210--220
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected monitoring properties of agricultural soil from the Imielin experimental site
Wybrane parametry monitoringowe gleb rolnych obiektu doświadczalnego Imielin
Autorzy:
Radziemska, M.
Fronczyk, J.
Lech, M.
Sieczka, A.
Lechowicz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/886269.pdf
Data publikacji:
2016
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
monitoring property
soil monitoring
agricultural soil
soil property
nitrogen
fertilization
Imielin experimental site
Opis:
Selected monitoring properties of agricultural soil from the Imielin experimental site. The effects of two types of agricultural practice: variable rate application (VRA) and uniform (UNI) N dose on selected chemical properties of soil were compared in a fi eld fertilization experiment. Nitrogen, in doses 60 or 80 kg·haˉ¹ (UNI) and 55–105 kg·haˉ¹ (VRA), was applied to soil farmed with winter wheat (Triticum aestivum L.). The research was conducted in the 2012/2013 growing season in Poland on 22 ha of production fi elds located in the Imielin countryside (central Poland). The soil samples were taken from three depths: 0.0–0.3, 0.3–0.6, and 0.6–0.9 m, and the pH, HAC, TEB, CEC, and BS were determined. The application of the nitrogen fertilizer in the two types of agricultural practice – variable rate application (VRA) and uniform (UNI) N dose modified the basic physical and chemical properties of soil. The highest values of pH and hydrolytic acidity were observed at the soil depth of 0.6–0.9 m after the first rate of nitrogen fertilizer was applied. Cation exchange capacity of soils collected after uniform nitrogen rates were characterized by values decreasing with the increasing depth of the soil profile.
Wybrane parametry monitoringowe gleb rolnych obiektu doświadczalnego Imielin. Wpływ dwóch rodzajów nawożenia: zmienną (VRA) i stałą dawką azotu (UNI) na wybrane właściwości chemiczne gleb została określona na podstawie doświadczeń polowych. Dawki azotu w ilościach 60 i 80 kg·haˉ¹ (UNI) oraz 55–105 kg·haˉ¹ (VRA) były dodawane do gleby, na której uprawiano pszenicę ozimą (Triticum aestivum L.). Badania przeprowadzono w sezonie wegetacyjnym 2012/2013 na 22 ha polu uprawnym zlokalizowanym w miejscowości Imielin (centralna Polska). Próbki gleb pobrano z trzech głębokości: 0,0–0,3, 0,3–0,6 i 0,6–0,9 m, i oznaczono w nich: pH, EC, Hh, S, T, V. Aplikacja nawozów azotowych w zmiennej (VRA) i stałej dawce (UNI) azotu modyfikowała podstawowe fizyko-chemiczne właściwości gleby. Największymi wartościami pH i kwasowości hydrolitycznej charakteryzowała się gleba pochodząca z głębokości pomiarowej 0,6–0,9 m, pobrana po pierwszej dawce wysiewu nawozów. Kationowa pojemność gleb pochodzących z poboru po drugiej dawce nawożenia stałą dawką azotu charakteryzowała się wzrostem swej wartości w miarę zwiększania się głębokości pomiarowej.
Źródło:
Scientific Review Engineering and Environmental Sciences; 2016, 25, 2[72]
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Occurrence, Ecological and Health Risk of Heavy Metals in Agricultural Soil in the Hau Giang Province, Vietnam
Autorzy:
Hong, Tran Thi Kim
Dan, Truong Hoang
Giao, Nguyen Thanh
Powiązania:
https://bibliotekanauki.pl/articles/2173352.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
agricultural soil
ecological risk
health risk
Hau Giang province
Opis:
The study aimed to evaluate the occurrence of some heavy metals in agricultural soil in the Hau Giang province, Vietnam. The geographical accumulation index (Igeo), pollutant load index (PLI) and ecological risk index (RI) are used to assess the pollution levels and potential ecological risks due to the presence of heavy metals in agricultural soil. The results showed that the mean concentrations of Cu, Pb and Zn in the soil ranged from 16.25–40.32, 18.05–29.92 and 52.78–147.22 mg/kg, respectively, within the limits of QCVN 03-MT:2015/BTNMT. Cluster analysis showed that Pb originated from the process of using fertilizers, especially phosphate fertilizers in farming. Cu and Zn possibly share a common origin from the use of pesticides and fungicides in agricultural production. The Igeo value of Cu, Pb and Zn gradually increases in the order of Cu < Zn < Pb. The PLI (1.03–1.97) reflected that the soil in the study area is moderately polluted. The RI (14.80–25.33) represented a low potential ecological risk. In particular, position D3 had the highest level of pollution and risk among the study sites. Pb had the highest level of accumulation in soil with the highest single ecological risk factor; thus, measures should be taken to limit the source of Pb generation. The results of the study also indicated that ingestion route is the main exposure pathway by which heavy metals can be harmful to humans.
Źródło:
Journal of Ecological Engineering; 2022, 23, 9; 61--71
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of long-term agricultural land use on soil properties along the Austrian-Hungarian border. Part II. Soil chemical, microbiological and zoological parameters
Autorzy:
Rampazzo, N.
Rajkai, K.
Blum, W.E.H.
Varallyay, G.
Ubleis, T.
Powiązania:
https://bibliotekanauki.pl/articles/25442.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
zoological parameter
Hungarian agricultural soil
agricultural practice
Austrian agricultural soil
chemical parameter
soil property
microbial parameter
soil biology
soil nutrient
Źródło:
International Agrophysics; 1999, 13, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Purified Wastewater on the Physicochemical Properties of Agricultural Soils in Chaouia in Morocco
Autorzy:
Abou-Tammame, Dyaa
Zouhri, Abdeljalil
Boutarfa, Abdeljalil
Fathi, Jihane
Aboutayeb, Rachid
Powiązania:
https://bibliotekanauki.pl/articles/2025786.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
purified wastewater
rainwater
treatment plant
agricultural soil
salinity
Opis:
The aim of this study was to assess the impact of the reuse of purified wastewater from the wastewater treatment plant in the city of Settat on the physicochemical quality of agricultural soils compared to the agricultural soils irrigated by rainwater in the region of Chaouia in Morocco. The results obtained showed that despite the great fertilizing value of the purified wastewater, a slight increase in salinity was noted; they also reveal a significant difference in pH. The accumulation of sodium, total limestone and active limestone in the soil increased significantly in the soils irrigated by treated wastewater; in contrast, calcium increased significantly in the soils irrigated by rainwater.No significant differences were recorded for humidity, electrical conductivity, ammonium, nitrates, phosphorus, potassium, organic matter, total nitrogen or cation exchange capacity.
Źródło:
Journal of Ecological Engineering; 2022, 23, 1; 34-42
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Współczesne zmiany właściwości gleb rolniczych w krajobrazie młodoglacjalnym
Contemporary changes of agricultural soil’s characteristic in the young glacial landscape
Autorzy:
Braun, B.
Powiązania:
https://bibliotekanauki.pl/articles/2084377.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
krajobraz mlodoglacjalny
gleby rolne
wlasciwosci gleby
zmiany wlasciwosci
gleby deluwialne
odczyn gleby
kationy zasadowe
prochnica
gestosc objetosciowa
Opis:
The research area is located in the Bytów District (NW Poland). The following analysis were performed: thickness of the humus horizon, reserves of humus, soil reaction, the acid and alkaline cations in soil adsorbtion complex and hulk density. The conducted researches revealed that the application of agricultural machinery caused erosion acceleration, particularly in the hilly areas. The deluvial horizons of these areas reach thickness of 50-100 cm. They are richer in organic matter than humus horizons located on flat-topped mountains and slopes. Discussed deluvial horizons are also characterized by less acid reaction, sometimes even neutral, and higher saturation of the soil adsorbtion complex. It was also observed that longstanding mechanization of agriculture leads to formation of a densified layer at the depth of 30 cm. The intensive fertilization with mineral fertilizers, especially nitric ones, causes soil acidification.
Źródło:
Prace i Studia Geograficzne; 2011, 46; 93-106
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 252

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