Soil Pollution vs. Soil Collembola as a Bioindicator: A review

Atreyee Sahana

doi:10.47944/jos2.5.2018.1

Compositional and chemical characteristics of dissolved organic matter in various types of cropped and natural Chinese soils

Chemical and Biological Technologies in Agriculture ◽

10.1186/s40538-019-0158-z ◽

2019 ◽

Vol 6 (1) ◽

Cited By ~ 1

Author(s):

Songyan Li ◽

Meng Li ◽

Guoxi Wang ◽

Xiaolei Sun ◽

Beidou Xi ◽

...

Keyword(s):

Organic Matter ◽

Dissolved Organic Matter ◽

Soil Type ◽

Spectral Characteristics ◽

Terrestrial Ecosystems ◽

Soil Types ◽

Chemical Characteristics ◽

Natural Soils ◽

Red Soils ◽

Chernozem Soils

Abstract Background Exploration of composition and chemical characteristics of soil dissolved organic matter (DOM) is significant to understand its biogeochemical role in terrestrial ecosystems. A total of 43 cropped and 16 natural soils (0–20 cm) under four soil types (cinnamon, chernozem, red and paddy soils) across China were collected to investigate the spectral characteristics of DOM using UV–Vis and 3D-EEM spectroscopy. Results The chernozem soils exhibited the highest aromaticity and humification degree among the four soil types. Ranges of biological index (BIX, 0.53–1.17) and fluorescence index (FI, 1.55–2.10) were found in the investigated DOM, showing joint contribution from allochthonous and autochthonous sources. Higher BIX and FI in the DOM of the paddy and red soils indicated a greater reliance on autochthonous sources for these two soil types. The cropped soils showed no significant differences in chemical characteristics and sources from the natural soils for the cinnamon, chernozem and red soils. UVA (16.2–47.9%) and UVC fulvic-like substances (15.4–40.5%) were the prevailing DOM components, which were highest in the chernozem soils. Additionally, the cropped soils had a higher proportion of humic-like substances than the natural soils in the DOM. Conclusions Both soil type and land-use strongly affected the chemical characteristics of soil DOM, but only soil type had an impact on the DOM composition for the collected soils. These findings may contribute to the prediction of the biochemical behavior of soil DOM under different soil types and land-uses in terrestrial ecosystems.

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Role of Soil Algae on the Initial Stages of Soil Formation in Sandy Polluted Areas

Ecological Chemistry and Engineering S ◽

10.1515/eces-2015-0041 ◽

2015 ◽

Vol 22 (4) ◽

pp. 675-690 ◽

Cited By ~ 4

Author(s):

Oimahmad Rahmonov ◽

Jerzy Cabala ◽

Renata Bednarek ◽

Dorota Rozek ◽

Adam Florkiewicz

Keyword(s):

Organic Matter ◽

Aromatic Compounds ◽

Significant Contribution ◽

Soil Formation ◽

Ecological Systems ◽

Soil Algae ◽

Organic Composition ◽

Mineral Components ◽

N Compounds

Abstract Research to evaluate the role of the soil algae in the initiation of pedogenesis in sandy areas and to establish the mineral, chemical and organic composition of soil-algal crusts was done. The investigations area is located in southern Poland in a landscape of drift sand (Bledowska Desert) formed as a result of medieval deforestation related to Ag, Pb and Fe mining activities. Fifteen species of algae (Cyanophyta, Chlorophyta and Heterokontophyta) were identified. In the soil-algal crusts, Corg contents ranged from 0.35-2.23%, Pavail from 9-34 mg · kg−1 and Nt was variable. In investigated area the ground on which soil algae developed was acidic (pH 4.4-5.7 in KCl). Among mineral components in the crust, phases rich in Fe and K dominated (776.5(±2.3) - 2803(±31) mg · kg−1 and 230.5(±3.7) - 696(±22) mg · kg−1, respectively) and elevated concentrations of Zn, Mn and Pb occurred. Soil-crust organic matter includes aliphatic and aromatic compounds, carbohydrate derivatives, phenols, furan and pyrene structures. N compounds have significant contribution in composition of soil-algal crusts - the algae are main source of organic matter in this stage of soil formation. It could accelerate the regeneration of disturbed ecological systems.

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Soil organic matter build-up during soil formation in glacier forefields around the world

10.5194/egusphere-egu2020-9128 ◽

2020 ◽

Author(s):

Norine Khedim ◽

Lauric Cécillon ◽

Jérome Poulenard ◽

Pierre Barré ◽

François Baudin ◽

...

Keyword(s):

Organic Matter ◽

Soil Organic Matter ◽

Soil Carbon ◽

Total Concentration ◽

Soil Formation ◽

Terrestrial Ecosystems ◽

Isotopic Signature ◽

Carbon Pools ◽

Soil Carbon Pools ◽

The World

Due to the continued ice retreat with global warming, areas of deglaciated forefields will strongly increase in the future, leading to the emergence of new terrestrial ecosystems in many regions of the world. The soil chronosequences resulting from glacier retreat have long been a key tool for studies focusing on the mechanisms of soil formation and soil organic matter storage.This study aimed at identifying general patterns in soil organic matter (SOM) build-up during the initial stage of soil formation and ecosystem development (0&#8211;500 years) in different glacier forefields around the world. For this purpose, we measured total soil organic matter concentration (C and N), its stable isotopic composition (13C, 15N) and its distribution in carbon pools of different biogeochemical stability over time in ten soil chronosequences on glacier forefields (four Andeans, one Canadian Rockies, one Greenland, two Alps, one Caucasus, one Himalaya). The distribution of SOM in carbon pools was estimated with Rock-Eval&#174; thermal analysis. We then tested the effect of time and climatic variables (temperature, precipitation) on the build-up of soil organic matter (total concentration, isotopic signature and distribution in carbon pools).We found a positive correlation between the rate of SOM accumulation and the average temperature of the warmest quarter (three-month period). We also noted significant traces of atmospheric deposition of anthropogenic origin in some forefield glaciers, particularly in the northern hemisphere. The build-up of soil carbon pools showed consistent trends across the soil chronosequences of the ten glacier forefields. During the first decades of soil formation, the very low SOM quantities were dominated by a very stable carbon with a small but significant labile carbon pool. This may highlight the presence of organic matter derived from ancient carbon on the different forefield glaciers, decomposed by an active living trophic network of soil microorganisms. The overall stability of SOM then slowly decreased with time, reflecting the soil carbon input from plants.We conclude that while the rate of SOM accumulation is driven by climate (air temperature of the growing season), the build-up of soil carbon pools shows a consistent temporal trajectory on the different glacier forefields around the world.

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Fractal Character of Humin and its Components

Fractals ◽

10.1142/s0218348x9700084x ◽

1997 ◽

Vol 05 (supp02) ◽

pp. 83-100 ◽

Cited By ~ 2

Author(s):

Kalumbu Malekani ◽

James A. Rice ◽

Jar-Shyong Lin

Keyword(s):

Surface Roughness ◽

Organic Matter ◽

Organic Compounds ◽

Fractal Dimensions ◽

Surface Reactivity ◽

Inorganic Materials ◽

Scattering Data ◽

Natural Soil ◽

Soil Systems ◽

Mineral Components

Natural organic matter in soils is usually found in intimate association with inorganic materials, primarily aluminosilicates, during the early stages of diagenesis to form an organo-mineral composite known as humin. Such composites typically represent more than 50% of the organic carbon present. Because of humin's insolubility and the surface reactivity of its organic components it is recognized as an important adsorbent of many anthropogenic organic compounds introduced into natural soil systems. Fractal analysis of small-angle X-ray scattering data was used to characterize the surface roughness of four humin samples following sequential removal of organic matter. The surface fractal dimensions were observed to decrease with removal of organic matter which also resulted in a decrease in surface pore size. These results suggest that the mineral components of humin have smooth surfaces over length scales of ~ 1 to ~ 15 nm, and that it is the organic matter coatings that are responsible for their surface roughness. Models clay-organic compounds exhibited results that are consistent with the observation made for natural samples. The surfaces of all the components of humin were found to be dominated by micro- and mesopores that could explain humin's high sorptive uptake of organic chemicals in the environment.

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The Soil Organic Matter in Connection with Soil Properties and Soil Inputs

Agronomy ◽

10.3390/agronomy11040779 ◽

2021 ◽

Vol 11 (4) ◽

pp. 779

Author(s):

Václav Voltr ◽

Ladislav Menšík ◽

Lukáš Hlisnikovský ◽

Martin Hruška ◽

Eduard Pokorný ◽

...

Keyword(s):

Organic Matter ◽

Soil Organic Matter ◽

Soil Texture ◽

Management Practices ◽

Soil Depth ◽

Operating Conditions ◽

Hot Water ◽

Natural Soil ◽

Soil Productivity ◽

Linear Regression Models

The content of organic matter in the soil, its labile (hot water extractable carbon–HWEC) and stable (soil organic carbon–SOC) form is a fundamental factor affecting soil productivity and health. The current research in soil organic matter (SOM) is focused on individual fragmented approaches and comprehensive evaluation of HWEC and SOC changes. The present state of the soil together with soil’s management practices are usually monitoring today but there has not been any common model for both that has been published. Our approach should help to assess the changes in HWEC and SOC content depending on the physico-chemical properties and soil´s management practices (e.g., digestate application, livestock and mineral fertilisers, post-harvest residues, etc.). The one- and multidimensional linear regressions were used. Data were obtained from the various soil´s climatic conditions (68 localities) of the Czech Republic. The Czech farms in operating conditions were observed during the period 2008–2018. The obtained results of ll monitored experimental sites showed increasing in the SOC content, while the HWEC content has decreased. Furthermore, a decline in pH and soil´s saturation was documented by regression modelling. Mainly digestate application was responsible for this negative consequence across all soils in studied climatic regions. The multivariate linear regression models (MLR) also showed that HWEC content is significantly affected by natural soil fertility (soil type), phosphorus content (−30%), digestate application (+29%), saturation of the soil sorption complex (SEBCT, 21%) and the dose of total nitrogen (N) applied into the soil (−20%). Here we report that the labile forms (HWEC) are affected by the application of digestate (15%), the soil saturation (37%), the application of mineral potassium (−7%), soil pH (−14%) and the overall condition of the soil (−27%). The stable components (SOM) are affected by the content of HWEC (17%), soil texture 0.01–0.001mm (10%), and input of organic matter and nutrients from animal production (10%). Results also showed that the mineral fertilization has a negative effect (−14%), together with the soil depth (−11%), and the soil texture 0.25–2 mm (−21%) on SOM. Using modern statistical procedures (MRLs) it was confirmed that SOM plays an important role in maintaining resp. improving soil physical, biochemical and biological properties, which is particularly important to ensure the productivity of agroecosystems (soil quality and health) and to future food security.

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CHEMICAL CHARACTERISTICS OF A NATURAL SOIL LEACHATE FROM A HUMIC PODZOL

Canadian Journal of Soil Science ◽

10.4141/cjss69-017 ◽

1969 ◽

Vol 49 (1) ◽

pp. 151-158 ◽

Cited By ~ 27

Author(s):

M. Schnitzer ◽

J. G. Desjardins

Keyword(s):

Organic Matter ◽

Fulvic Acid ◽

Water Solubility ◽

Structural Features ◽

Natural Soil ◽

Complexing Agent ◽

Soil Leachate ◽

Nitrogenous Compounds ◽

Free Weight ◽

Metal Organic

A leachate, collected in the field in a lysimeter placed between the Ae and Bhf horizon of a Humic Podzol in Newfoundland, was analyzed by chemical and spectroscopic methods.About 87% of the dry, ash-free weight of the leachate was fulvic acid, the remainder consisting mainly of polysaccharides and nitrogenous compounds. A comparison of the analytical characteristics of the purified leachate with those of extracted and purified Podzol Bh fulvic acid showed that the main structural features of the two materials were very similar. Judging from its high contents of oxygen-containing functional groups and from its water solubility, the organic matter in the leachate had all the characteristics of an efficient metal–complexing agent, capable of playing a significant role in metal–organic matter interactions in soils.An organic matter–silica sediment was isolated from the leachate, consisting of 47.6% organic matter and of 52.4% of almost pure SiO2∙nH2O. The organic matter in the sediment accounted for about 10% of the organic matter in the leachate. The isolation of the sediment suggests that investigations on interactions between compounds of silicon and humic substances deserve greater attention than they have so far received.

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Linking Genes to Traits in Fungi

Microbial Ecology ◽

10.1007/s00248-021-01687-x ◽

2021 ◽

Author(s):

A. L. Romero-Olivares ◽

E. W. Morrison ◽

A. Pringle ◽

S. D. Frey

Keyword(s):

Organic Matter ◽

Nitrogen Uptake ◽

Brown Rot ◽

Terrestrial Ecosystems ◽

Organic Matter Decomposition ◽

Gene Frequencies ◽

Ecological Processes ◽

Linked Gene ◽

Carbon Cycles ◽

Brown Rot Fungi

AbstractFungi are mediators of the nitrogen and carbon cycles in terrestrial ecosystems. Examining how nitrogen uptake and organic matter decomposition potential differs in fungi can provide insight into the underlying mechanisms driving fungal ecological processes and ecosystem functioning. In this study, we assessed the frequency of genes encoding for specific enzymes that facilitate nitrogen uptake and organic matter decomposition in 879 fungal genomes with fungal taxa grouped into trait-based categories. Our linked gene-trait data approach revealed that gene frequencies vary across and within trait-based groups and that trait-based categories differ in trait space. We present two examples of how this linked gene-trait approach can be used to address ecological questions. First, we show that this type of approach can help us better understand, and potentially predict, how fungi will respond to environmental stress. Specifically, we found that trait-based categories with high nitrogen uptake gene frequency increased in relative abundance when exposed to high soil nitrogen enrichment. Second, by comparing frequencies of nitrogen uptake and organic matter decomposition genes, we found that most ectomycorrhizal fungi in our dataset have similar gene frequencies to brown rot fungi. This demonstrates that gene-trait data approaches can shed light on potential evolutionary trajectories of life history traits in fungi. We present a framework for exploring nitrogen uptake and organic matter decomposition gene frequencies in fungal trait-based groups and provide two concise examples on how to use our framework to address ecological questions from a mechanistic perspective.

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Soil Quality in the Poganis, Ramnei and Doclin Hills Measures of improvment

Revista de Chimie ◽

10.37358/rc.19.7.7362 ◽

2019 ◽

Vol 70 (7) ◽

pp. 2463-2470

Author(s):

Lucian Nita ◽

Dorin Tarau ◽

Simona Nita ◽

Alina Heghes ◽

Radu Bertici ◽

...

Keyword(s):

Agricultural Land ◽

Soil Formation ◽

Terrestrial Ecosystems ◽

Scientific Work ◽

Basic Information ◽

High Demand ◽

Soil Resources ◽

Genetic Types ◽

Improvement Measures ◽

Formation And Evolution

The purpose of current research is part of the current scientific work and practice regarding the accumulation of knowledge on the structure and characteristics of the edaphic envelope and its quality in order to establish measures for its improvement. The researched issue covers an area of 113940 ha (of which 77039 ha, 67.61% are agricultural land), located in the Poganis, Ramnei and Doclin hills, namely Barzavei Plain. The paper provides basic information and methodological elements regarding the classification and evaluation of soil resources, thus integrating itself in the broader field of complex studies of natural resources and their valorisation thus assuring the environmental protection. This research takes place at a time when there is a high demand of education in soil-related issues from its perspective as a basis for the existence of human communities, component and support of terrestrial ecosystems. From this perspective, the physico-geographic conditions of soil formation and evolution are briefly, but succinctly presented, mentioning the way in which the particularities of the area within the space taken into consideration, of only 113940 ha as a stretch, determine a great diversity of ecological conditions. They are generated by the variability of the factors (cosmic-atmospheric and telluric-edaphic), for which the main processes of formation and evolution have achieved a different development and intensity, the result of which are different genetic types of soils (related or totally different) in constant evolution and demanding specific improvement measures.

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Organik Matter: It’s Role in Sustainable Farming of Sugarcane

Perspektif ◽

10.21082/p.v14n1.2015.61-71 ◽

2016 ◽

Vol 14 (1) ◽

pp. 61

Author(s):

Djajadi Djajadi

Keyword(s):

Organic Matter ◽

Soil Organic Matter ◽

Soil Fertility ◽

Green Manure ◽

Organic Fertilizer ◽

Soil Health ◽

High Yield ◽

Cane Yield ◽

Sustainable Farming

ABSTRACTOrganik matter has an important role in determining soil health of sugarcane, i.e. soil capacity to support sugarcane to produce sustainable high yield. Soil organic matter influences soil physical, chemical, and biological properties, so that a consequence of declining soil organic matter is poorer soil fertility and lower yield. This paper has an objective to elucidate the important role of organic matter on sustainable farming of sugarcane. The important role of organic matter in soil fertility has been known for a long time before Green Revolution concept was introduced. With more intensity in sugarcane farming and more increasing of sugar demand, application of organic fertilizer started to be substituted by chemical fertilizer. Using green manure and/or biofertilizer has a chance to be spread out to the farmers due to more practical and more efficient than solid organik fertilizer, such as dung manure or compost. Future research should be focusing on the efectivity of green manure and or biofertilzer sources in improving soil fertility and cane yield, minimizing soil pathogen, reducing soil erosion of sugar cane land monoculture, and improving awareness of farmers about soil degradation as consequences of sugarcane monoculture planting for years.Keywords: Organic matter, sugarcane, soil health sustainable farming Bahan Organik: Peranannya dalam Budidaya Tebu BerkelanjutanABSTRAKBahan organik tanah berperan penting dalam menentukan kesehatan tanah tebu, yaitu kapasitas tanah yang dapat mendukung produksi tebu yang tinggi secara berkelanjutan. Kadar bahan organik tanah mempengaruhi sifat fisik, kimia dan biologi tanah. Paper ini bertujuan untuk menguraikan tentang peranan bahan organik dalam memperbaiki sifat fisik, kimia dan biologi tanah pertanaman tebu. Pentingnya peran bahan oganik tersebut sudah disadari dari dulu, sehingga sebelum revolusi hijau penggunaan pupuk organik sudah umum dilakukan petani. Dengan semakin intensifnya budidaya tebu dan semakin meningkatnya kebutuhan gula, pemanfaatan pupuk organik sudah jarang dilakukan. Diperlukan usaha untuk meningkatkan dan mempertahankan kadar bahan organik pada lahan tebu, antara lain berupa gerakan masal dalam bentuk gerakan nasional melalui program aplikasi bahan organik. Pemanfaatan pupuk hijau dan/atau pupuk hayati berpeluang untuk diterapkan karena lebih praktis dan efisien daripada penambahan pupuk organik padat. Penelitian ke depan perlu difokuskan untuk mengkaji jenis-jenis pupuk organik dan pupuk hayati yang efektif memperbaiki kesuburan, dalam menekan serangan penyakit, meminimalkan erosi pada lahan-lahan tebu monokultur, dan meningkatkan kesadaran petani tebu tentang terjadinya degradasi lahan akibat penanaman tebu yang terus menerus.Kata kunci: Bahan organik, tebu, kesehatan tanah, budidaya berkelanjutan

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Effect of organic minerals and alpha-ketoglutarate in pheasant diet on performance, hatchability and the composition of eggs

Medycyna Weterynaryjna ◽

10.21521/mw.6598 ◽

2021 ◽

Vol 77 (12) ◽

pp. 6598-2021

Author(s):

MARIAN FLIS ◽

DARIUSZ GUGAŁA

Keyword(s):

Control Group ◽

Group Iii ◽

Group I ◽

Supplement Group ◽

Mineral Components ◽

Group A ◽

Commercial Breeding ◽

Inorganic Mineral ◽

Organic Minerals ◽

Copper Chelates

This study determined the effect of supplementation of the pheasant diet with mineral components (Ca, Fe, Zn and Cu) from organic sources with or without the addition of alpha-ketoglutarate (AKG) on productivity, hatchability parameters, nutrients and mineral content in pheasant eggs. Studies were performed on three groups of laying pheasants, which were kept in aviaries and received a standard mixture (Group I, the control group), a mixture with Ca, Fe, Zn, and Cu glycinates which replaced 50% of the mineral components in inorganic form (Group II), or a mixture with chelates and a 200 mg alpha-ketoglutarate supplement (Group III). Supplementation of the diet with chelates raised the content level of the mineral components in the whole egg and yolk, mainly the contents of calcium, zinc and iron. The addition of 200 mg of alpha-ketoglutarate to the diet with calcium, zinc, iron and copper chelates of glycine (50% of the supplemented elements) resulted in improved laying capacity and rates of reproduction and rearing of chicks, with a slight decrease in the size and weight of eggs. The eggshell was thinner, and the albumen and the Haugh Unit score were higher. Inorganic mineral components can be replaced by glycine chelates at up to 50%, especially with the addition of 200 mg of AKG, in the pheasant diet in commercial breeding.

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