ORGANIC SUBSTANCE IN THE SOILS OF TRANSPORTATION AND RECREATION ZONES OF YAKUTSK

2021 ◽  
Author(s):  
Diyana Vasilievna Obutova ◽  
◽  
Marina Vladimirovna Schelchkova ◽  
Keyword(s):  
Organic Matter ◽  
Organic Substance ◽  
Urban Soils ◽  
Green Spaces ◽  
Floodplain Meadow

The content of organic matter in the Yakutsk city soils of the recreational zones (squares, park of culture and rest, floodplain meadow) and transport zones (lawns along major transport routes) was studied. It is shown that the urban soils of Yakutsk under green spaces are characterized by low potential fertility. They are poor in humus and are moderately supplied with alkaline hydrolysable nitrogen.

Metal contamination of urban soils in Cork, Ireland

2021 ◽  
Author(s):  
Hannah Binner ◽  
Timothy Sullivan ◽  
Maria E. Mc Namara
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Metal Contamination ◽  
Urban Soils ◽  
Soil Samples ◽  
Ex Situ ◽  
City Centre ◽  
Metal Concentrations ◽  
Ph Values ◽  
Background Levels

<p>Soil contamination is widespread across Europe. In particular, contamination of urban soils by metals is poorly characterised. This is a major environmental concern, especially given that urban recreational amenities may be located on former industrial sites and/or may possess ex situ soils derived from industrial areas. We surveyed soils from nine urban recreational sites (15 samples per site) in Cork city in order to assess the degree of metal contamination. The results show that Pb concentrations exceed national background levels in all soil samples from all sites by a mean of 600 % and at least 140 %. Mn, Fe and Zn are enriched above background levels in all soil samples from three (Mn and Fe) to five (Zn) of the sites and, at the remaining sites, show 7 – 14 localised hotspots. Similar hotspots characterise Cu, Rb and Sr, which each exceed background levels at eight or more sampling locations at four sites. Co, Ni, As and Sn concentrations exceed background levels in at least three hotspots at each of three to six sites. Overall, metal concentrations are highest in the sites closest to the city centre, reflecting diverse sources that potentially include traffic and current and historical domestic coal burning and industry. At each urban site, the element grouping Zn and Pb recurs in 50 to 80 % of locations and enrichment in the element grouping Mn, Fe, Cu, Zn and Pb recurs in approx. 50 % of locations; Ni and As recur in approx. 10 % of the locations. At three sites, elevated concentrations of Mn, Fe, Cu, Zn and Pb are associated with high LOI (Loss-on-ignition) values – a proxy for the amount of soil organic matter present – and near-neutral pH values. Conversely, low LOI and acidic pH values are associated with lower concentrations of these elements. This indicates that soil metal concentrations are influenced by the amount of organic matter present and by pH.  Future analyses and experiments will further investigate links between soil organic matter and metal concentrations.</p>

scholarly journals Organic matter of soils and technogenic surface formations of residential areas of the city of Perm

2021 ◽  
Vol 5 (47) ◽  
pp. 27-27
Author(s):  
Natalia Moskvina ◽  
Igor Shestakov ◽  
Natalia Mitrakova
Keyword(s):  
Organic Matter ◽  
Urban Soils ◽  
Left Bank ◽  
Residential Areas ◽  
Humus Formation ◽  
Functional Zone ◽  
Humus Type ◽  
Reclaimed Soils ◽  
The City ◽  
Technogenic Surface Formations

On the territory of the left-bank part of Perm, the urban pedocomplexes (UPC) were distinguished as a combination of soil and technogenic surface formations on the same soil-forming rocks within a certain functional zone. Within the UPC, formed on eluvial-deluvial loams and clays in the zone of multi-storey buildings, the surface horizons of soils and TSF (technogenic surface formations) were studied. A change in the zonal trend of humus formation in reclaimed soils was observed as an increase in the content of organic matter, as well as in a change in the type of humus to the humate side. The conservation of zonal features of humus formation in non-purposefully recultivated urban soils and TSF was noted. It manifests in a low or medium content of organic carbon, the formation of a humate-fulvate type of humus. Keywords: URBAN ECOLOGY, URBAN SOILS, URBAN PEDOCOMPLEX, HUMUS, HUMUS TYPE, SOIL PROPERTIES

Organic matter of urban soils: A review

2015 ◽  
Vol 48 (8) ◽  
pp. 802-811 ◽  
Author(s):  
Yu. N. Vodyanitskii
Keyword(s):  
Organic Matter ◽  
Urban Soils

scholarly journals Bioaccessibility of As and Pb in orchard and urban soils amended with phosphate, Fe oxide and organic matter

Chemosphere ◽  
2017 ◽  
Vol 173 ◽  
pp. 153-159 ◽  
Author(s):  
Meifang Cai ◽  
Murray B. McBride ◽  
Kaiming Li ◽  
Zhian Li
Keyword(s):  
Organic Matter ◽  
Urban Soils ◽  
Fe Oxide

scholarly journals Carbon and Metal(loid)s in Parkland and Road Verge Surface Soils in the City of Liverpool, UK

Agronomy ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 335 ◽  
Author(s):  
Luke Beesley ◽  
Eduardo Moreno-Jiménez ◽  
Phil Jenn ◽  
Nicholas W. Lepp
Keyword(s):  
Organic Matter ◽  
Organic Carbon ◽  
Urban Soils ◽  
Public Spaces ◽  
Soil Survey ◽  
Water Soluble ◽  
Surface Soils ◽  
Road Verge ◽  
C Storage ◽  
The City

Urban soils are at the interface between land and people and provide a wide variety of important ecosystem services to highly populous areas. The aims of this soil survey were (1) to measure the bulk density, carbon (C) storage and pH of surface soils (0–15 cm depth) from public spaces (parks and road verges) in the city of Liverpool, UK, and (2) to determine the likely impact of these master variables on heavy metal concentrations (As, Cd, Cu, Pb and Zn). The bulk densities and organic matter contents varied considerably in the predominantly sandy textured soils within the city boundary, resulting in diverse C densities from 1–10 kg C m2. Organic carbon formed the majority of the labile, water-soluble and extractable C pool in these soils, a fact not easily elucidated from their organic matter or C content alone. The copper and lead concentrations in the sampled soils were correlated with organic matter and organic carbon in water-extracts. Cadmium and zinc appeared to be dependent only on soil pH, whilst arsenic was related positively to organic matter, but negatively to pH. Interrelationships, and hence synonymous distributions, of all metal(loid)s existed, but were strongest between Cu and As, and Cu and Pb. These results suggest that the diverse bulk densities, and hence carbon storage, of the urban soils surveyed influenced the dispersal of metals and arsenic.

scholarly journals Pengaruh Limbah Organik terhadap Status Tropik, Rasio N/P serta Kelimpahan Fitoplankton di Waduk Panglima Besar Soedirman Kabupaten Banjarnegara

Biosfera ◽  
2015 ◽  
Vol 32 (1) ◽  
pp. 35
Author(s):  
Endang Widyastuti ◽  
Sukanto Sukanto ◽  
Nuning Setyaningrum
Keyword(s):  
Organic Matter ◽  
Organic Substance ◽  
Trophic State ◽  
Organic Waste ◽  
Survey Methods ◽  
Sampling Technique ◽  
Phytoplankton Growth ◽  
Limiting Factor ◽  
Redfield Ratio ◽  
Purposive Sampling

The increased of organic substance pollutans in waters as one of stimulate factors for phytoplankton growth. The input of organic matter from antrophogenic  activity tend to influence the trophic state of reservoir. The aims of this research are to examine the influence of organic waste to Panglima Soedirman reservoir concerning the trophic state, Redfield ratio N and P, also the relation with abundance of phytoplankton. This research used survey methods with purposive sampling technique on 7 obsevation stations with 3 repeating conducted on May-July 2013. The result of the research showed that the input of organic matter increased in BOD5, COD and ammonia in reservoir and trophic state. Redfield ratio was shown 19,13-65,82 which means P as a limiting factor. Relationship between N/P with the abundance of phytoplankton with degree was strong correlated with chlorophyta and chrysophyta.

scholarly journals Gas exchange and organic matter production of Scots pine (Pinus sihestris L.) seedlings grown in water culture with ammonium or nitrate form of nitrogen

2015 ◽  
Vol 42 (4) ◽  
pp. 607-615 ◽  
Author(s):  
J. Zajączkowska
Keyword(s):  
Organic Matter ◽  
Gas Exchange ◽  
Scots Pine ◽  
Organic Substance ◽  
Pinus Silvestris ◽  
Water Culture ◽  
Organic Matter Production ◽  
Matter Production ◽  
Photosynthesis And Respiration

he reaction of Scots pine (<i>Pinus silvestris</i> L.) seedlings to ammonium and nitrate form of nitrogen was investigated. Rates of photosynthesis and respiration, content of chlorophylls, and accumulation of organic substance were determined in 12 and 18 weeks old plants. The results have shown, that the forms of nitrogen does affect the amount of accumulated organic substance as well as its distribution in particular organs.

scholarly journals SIGNIFICANCE OF SOIL FERTILITY INDICATORS FOR MONITORING

2021 ◽  
Vol 4 (2) ◽  
pp. 98-103
Author(s):  
Yury S. Larionov ◽  
Valeriy B. Zharnikov ◽  
Evgeniya I. Baranova ◽  
Olga A. Larionova ◽  
Gennady N. Kovalivker
Keyword(s):  
Organic Matter ◽  
Soil Fertility ◽  
Organic Substance ◽  
Crop Productivity ◽  
Total Biomass ◽  
Modern Information ◽  
The Law

The need to search for integral indicators of soil fertility for monitoring based on the control of the synthesis of total biomass (the organic substance underlying the law of soil fertility) and crop productivity using modern information (primarily unmanned technologies) is justified in order to obtain detailed information on soil fertility occupied by crops. At the same time, it is important to develop methods for monitoring the balance of organic matter of the soil, reflecting its mineralization, humification and other types of its transformation.

An Analysis of Soils in Various Type of Urban Green Spaces Based on the Soil Organic Matter Quality

2020 ◽  
Author(s):  
Hanmin Choi ◽  
Youjin Kim ◽  
Inhye Seo ◽  
Gayoung Yoo
Keyword(s):  
Organic Matter ◽  
Urban Soil ◽  
Green Space ◽  
Soil Health ◽  
Green Spaces ◽  
Anthropogenic Factors ◽  
Urban Park ◽  
Urban Green ◽  
Urban Green Spaces ◽  
The Relationship

&lt;p&gt;Urban soil is the foundation of ecosystem functioning in urban green spaces, which plays an important role in sustainable urbanization. To maintain the ecosystem services provided by urban green space, it is important to manage and monitor the urban soil using appropriate evaluation parameters. Given that the urban soil is under direct and indirect influence of anthropogenic factors, the characteristics of urban ecosystem should be considered when assessing the soil quality. My research group already suggested a new soil quality parameter set for urban roadside soils, which is composed of soil penetration resistance (PR), pH, the C/H ratio of particulate organic matter (POM-C/H), POM-N, and soil microbial respiration (RES). This parameter set indicated that the urban soil has very unique quality of soil organic matter (SOM) and it should be considered as well as SOM quantity when assessing the urban soil status. In this study, we aimed at assessing the SOM quality in various types of urban green space using the C/H ratio and N of POM and analyzing the relationship between SOM quality and soil RES. Soil RES was regarded as a representative parameter for overall soil health and used as a dependent variable. The study was conducted in three different types of urban green spaces, which are roadside, urban park, and riverside green in Seoul, Korea. In each type of green space, three sites were selected varing in the degree of human disturbance. Soil samples were collected from the 0-15 cm depth, passed through 2mm sieve and dried before analysis. The POM was separated after wet sieving using 53 um screen and the C, N, and H contents of POM were measured using combustion analysis using the Carlo Erba NS Analyzer Carlo Erba, Milan, Italy). We calculated the POM-C/H as a proxy for aromaticity, which increases with high non-degradable OM. To trace the source of SOM, we measured the N stable isotope ratio of POM (POM-&amp;#948;&lt;sup&gt;15&lt;/sup&gt;N). On the same day of soil sampling, soil RES was measured on-site using the EGM CO&lt;sub&gt;2&lt;/sub&gt; Gas Analyzer PP Systems, MA, USA). We performed multiple regression to analyze the relationship between SOM quality and soil RES. The POM C/H was higher in roadside soil than urban park, which means the urban roadside soil has a significantly higher amount of non-biodegradable compounds such as PAH. This further implies that OM quality is significantly different among types of urban green spaces. Using the POM delta N value, we found that OM in the roadside soils was originated from sewage sludge, animal urine/feces as well as atmospheric deposition. Analysis of OM source tracing in the urban park and riverside soil will be conducted. There was a negative correlation between POM C/H ratio and soil RES, which indicates the poor soil health condition partly due to low OM quality. In conclusion, this study clarifies the importance of OM quality for assessing the soil in urban green spaces affected by anthropogenic factors and indicates that the SOM quality management needs to be established.&lt;/p&gt;

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