Geochemical characterization of soils of the eastern coast of the Northern Sakhalin Lowland

Zharikova, E. A.

doi:10.1134/s106422931701015x

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…The content of trace elements in the studied soils was relatively low, and, in most cases, their significantly higher amounts were accumulated in the top horizons. Similar contents of the determined micronutrients and their similar diversity were noticed in organic soils by [53] and in Fluvisols by [60]. Detailed data on the values of individual trace elements are presented in Table 3.…”

Section: Physicochemical Properties Of the Soilsupporting

confidence: 77%

“…They were values characteristic for soils with a similar texture, organic matter content and genesis [52]. Lower, strongly acidic pH values of organic soils were indicated by [53]. It was also observed that in the case of organic soils (profiles 1-7), the pH of the top horizons was typically lower compared to the endopedons of these soils.…”

Section: Physicochemical Properties Of the Soilmentioning

confidence: 89%

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Mineral Contents in Aboveground Biomass of Sedges (Carex L., Cyperaceae)

et al. 2021

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The importance of mineral elements, both in animal and plant nutrition, has been well recognized, but, in the case of sedges, the mineral composition is relatively poorly known. Studies usually relate to the content of the elements in sedge communities, or sward or hay communities with sedge participation, and rarely of Carex representatives. The objective of our study was to determine the concentrations of C, N, Ca, P, Mg, Na, K, Si, Cu, Zn, Mn, Fe, Cr and Ni in the biomass of 11 Carex species commonly occurring on natural sites of Central European lowland. Interspecific differentiations have been observed in concentrations of the major and trace elements among studied sedge species. The elemental composition of examined Carex species is diversified but generally similar to the composition of grasses. The study shows that sedges can increase fodder value and, therefore, they should be considered in meadow management as a valuable component of economically important meadow communities. Moreover, the data reported herein can be used for modelling the phytoaccumulation of various elements in the biomass of sedges. This will help in creating different patches suitable for obtaining adequate fodder. Our results can supplement current knowledge concerning the fodder value of meadows with sedge participation.

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Section: Physicochemical Properties Of the Soilsupporting

confidence: 77%

Section: Physicochemical Properties Of the Soilmentioning

confidence: 89%

Mineral Contents in Aboveground Biomass of Sedges (Carex L., Cyperaceae)

et al. 2021

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“…A study on the remote Northern Sakhalin region of Russia found arsenic concentrations built up to 9.2 mg/kg in the surface organic horizons of peats and podzols of forest settings, with an average of 2.8 mg/kg. 86 Wang et al 87 found high concentrations of arsenic in the humic horizon of a forest soil in southeast China of 27 mg/kg. They concluded that this enrichment originated from a limestone bedrock concentration of 8.6 mg/kg, stating that internal biogeochemical cycling was responsible, i.e., plant assimilation and bioconcentration of soil arsenic, without providing evidence.…”

Section: ■ Sources and Trends In Atmospheric Arsenic And Subsequent D...mentioning

confidence: 99%

“…Arsenic concentrations in the O horizon ranged from 0.4 to 1.8 mg/kg in the remote interior and the north and from 2.5 to 7.5 mg/kg in the more populous and industrially influenced southeast. A study on the remote Northern Sakhalin region of Russia found arsenic concentrations built up to 9.2 mg/kg in the surface organic horizons of peats and podzols of forest settings, with an average of 2.8 mg/kg . Wang et al found high concentrations of arsenic in the humic horizon of a forest soil in southeast China of 27 mg/kg.…”

Section: Sources and Trends In Atmospheric Arsenic And Subsequent Dep...mentioning

confidence: 99%

The Pedosphere as a Sink, Source, and Record of Anthropogenic and Natural Arsenic Atmospheric Deposition

Meharg¹,

Meharg²

2021

Environ. Sci. Technol.

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The Anthropocene has led to global-scale contamination of the biosphere through diffuse atmospheric dispersal of arsenic. This review considers the sources arsenic to soils and its subsequent fate, identifying key knowledge gaps. There is a particular focus on soil classification and stratigraphy, as this is central to the topic under consideration. For Europe and North America, peat core chrono-sequences record massive enhancement of arsenic depositional flux from the onset of the Industrial Revolution to the late 20th century, while modern mitigation efforts have led to a sharp decline in emissions. Recent arsenic wet and dry depositional flux measurements and modern ice core records suggest that it is South America and East Asia that are now primary global-scale polluters. Natural sources of arsenic to the atmosphere are primarily from volcanic emissions, aeolian soil dust entrainment, and microbial biomethylation. However, quantifying these natural inputs to the atmosphere, and subsequent redeposition to soils, is only starting to become better defined. The pedosphere acts as both a sink and source of deposited arsenic. Soil is highly heterogeneous in the natural arsenic already present, in the chemical and biological regulation of its mobility within soil horizons, and in interaction with climatic and geomorphological settings. Mineral soils tend to be an arsenic sink, while organic soils act as both a sink and a source. It is identified here that peatlands hold a considerable amount of Anthropocene released arsenic, and that this store can be potentially remobilized under climate change scenarios. Also, increased ambient temperature seems to cause enhanced arsine release from soils, and potentially also from the oceans, leading to enhanced rates of arsenic biogeochemical cycling through the atmosphere. With respect to agriculture, rice cultivation was identified as a particular concern in Southeast Asia due to the current high arsenic deposition rates to soil, the efficiency of arsenic assimilation by rice grain, and grain yield reduction through toxicity.

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“…Also, petrographic and clastometric analyses are important in soil characterization for environmental contamination, weathering, erosion, pedogenesis, agricultural studies or geoarchaeology (e.g. Courty, 1992;Le Pera et al, 2000Scarciglia et al, 2005;Zharikova, 2017;Goldberg and Aldeias, 2018). Burrowing and mounding activities of prairie dogs (Whicker and Detling, 1988), gophers (Sherrod and Seastedt, 2001), insects (Liu et al, 2007), worms (Needham et al, 2006) or benthic species (Rhoads and Boyer, 1982) represent local disturbances of soil and sediments characteristics (e.g.…”

Section: Introductionmentioning

confidence: 99%

Messor barbarus ants as soil bioturbators: Implications for granulometry, mineralogical composition and fossil remains extraction in Somosaguas site (Madrid basin, Spain)

Martín-Perea

Fesharaki

Domingo

et al. 2019

CATENA

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Few studies have inquired about the relationship between myrmecological activity and the granulometry and mineralogy of sediments of a paleontological site. The objectives of this article are to determine the sedimentological or mineralogical distinctions produced by ants of the species Messor barbarus when excavating their nests and extracting grains and vertebrate fossil remains from the Miocene paleontological site of Somosaguas (Madrid, Spain), to evaluate the degree of taphonomic influence this myrmecological activity has on the fossil remains, and to decide whether or not it can be used as a tool for paleontological prospection.Results show that Messor barbarus does not alter fossil remains when examined under a 10x binocular magnifying glass. Ants preferentially extract from the ant nest grains of medium sizes (0.25 -2 mm) compared to the non-ant-modified soils, and also extract a higher quantity of feldspars. These significant granulometric and mineralogical modifications should be considered when carrying out compositional, sedimentological or stratigraphical studies, since these can become biased and alter geological interpretations as provenance or palaeoclimatic signal. Grain size selection could be due to Messor barbarus' physical capacities or the use of 2 clay particles as cementing elements in nests. Mineralogical distinction may be related to feldspars' embayments and pits filled with finer material (mainly smectites), making transportation and pheromone impregnation easier.Results show that the ant mounds had increasing concentrations of fossil remains the nearer they were from the main excavation area, therefore the study of ant mounds in potentially fossiliferous zones can indeed be used as a new method of paleontological prospection.

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Geochemical characterization of soils of the eastern coast of the Northern Sakhalin Lowland

Cited by 6 publications

References 8 publications

Mineral Contents in Aboveground Biomass of Sedges (Carex L., Cyperaceae)

Mineral Contents in Aboveground Biomass of Sedges (Carex L., Cyperaceae)

The Pedosphere as a Sink, Source, and Record of Anthropogenic and Natural Arsenic Atmospheric Deposition

Messor barbarus ants as soil bioturbators: Implications for granulometry, mineralogical composition and fossil remains extraction in Somosaguas site (Madrid basin, Spain)

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