scholarly journals Relationships between exchangeable and water-soluble cations in the forest soil

2016 ◽  
Vol 27 (3) ◽  
pp. 1-7
Author(s):  
Grażyna Porębska ◽  
Apolonia Ostrowska
Keyword(s):  
Forest Soil ◽  
Soil Water ◽  
Ionic Composition ◽  
Mineral Soil ◽  
Parent Material ◽  
Water Soluble ◽  
Soil Types ◽  
Soil Sorption ◽  
Water Extracts ◽  
Haplic Podzol

AbstractThe aim of this research was to assess the relationships between exchangeable and water-soluble cations in forest soil types. Three dominant soil types were distinguished on studied plots: Haplic Podzol, Dystric Arenosol and Dystric Cambisol. Ca, Mg, K, Na and Al in soil sorption complex and soil water extracts were determined. The differentiation of the ionic composition of soil sorption complex and soil water extracts within a soil type and amongst soil types was presented. The sum of cations in the soil and water extracts was the highest in Dystric Cambisol and the lowest in Haplic Podzol. Ca is a dominant cation in soil and soil water extracts in organic horizon, whilst Al is dominant in mineral soil horizons. The Ca/Al and the base cations to Al (BC/Al) molar ratios increased in the sequence of soils: Haplic Podzol < Dystric Arenosol < Dystric Cambisol. The parent material, soil-forming processes and vegetation cover affected the Ca/Al and BC/Al ratios.

scholarly journals Effect of forest site types on the exchangeable and water-soluble cations distribution in the soil profiles

2016 ◽  
Vol 27 (4) ◽  
pp. 1-6
Author(s):  
Grażyna Porębska ◽  
Apolonia Ostrowska
Keyword(s):  
Soil Water ◽  
Ionic Composition ◽  
Mineral Soil ◽  
Water Soluble ◽  
Organic Horizon ◽  
Forest Site ◽  
Soil Sorption ◽  
Water Extracts ◽  
The Impact ◽  
Site Types

Abstract The aim of this research was to assess the impact of forest site types on the ionic composition of the soil sorption complex and soil water extracts in a soil profile. Three forest site types: coniferous forest (CF), coniferous-deciduous forest (CDF), and deciduousconiferous forest (DCF), were selected for the studies. Three dominant soil types were distinguished on the studied plots: Haplic Podzol, Dystric Arenosol, and Dystric Cambisol. Calcium (Ca), magnesium (Mg), potassium (K), sodium (Na), and aluminium (Al) in the soil sorption complex and soil water extracts were determined. Ca is a dominant cation in the soil sorption complex in organic horizon, while Al in mineral soil horizons. The differences between forest site types in ionic composition of soil water extracts were observed, mainly in the organic horizon and the horizons below the rooting zone. The vegetation affected the Ca/Al and base cations to Al molar (BC/Al) ratios. The Ca/Al and the BC/Al molar ratios increased in the sequence of sites: CF < CDF < DCF.

scholarly journals IMPACT OF THE BIOGEOCHEMICAL SITUATION AT CATCHMENTS ON THE MICROELEMENT COMPOSITION OF LAKE TELETSKOYE TRIBUTARIES’ WATERS

2020 ◽  
Vol 25 (3) ◽  
pp. 70-78
Author(s):  
A. V. Puzanov ◽  
◽  
S. V. Baboshkina ◽  
S. Ya. Dvurechenskaya ◽  
T. A. Rozhdestvenskaya ◽  
...  
Keyword(s):  
Trace Elements ◽  
Water Samples ◽  
Catchment Area ◽  
Ionic Composition ◽  
Water Reservoir ◽  
Water Soluble ◽  
Water Extracts ◽  
Lake Teletskoye ◽  
Western Lake ◽  
Microelement Composition

Introduction. The formation of the microelement composition of surface waters in reservoirs and watercourses is determined by the biogeochemical processes in the catchment area. However, the schemes and mechanisms of interaction between watercourses and the soils drained by them have been studied insufficiently. Lake Teletskoye is the largest water reservoir of Altai, one of the deepest lakes in Russia, and its catchment area is 90 times larger than the area of the lake itself. Methods. We collected water samples in Lake Teletskoye tributaries during the summer low water period, in the estuaries of rivers. The ionic composition of waters and water extracts from soils (1:5) was determined using standard methods with a titrimetric finish. The content of trace elements (Cd, Cu, Fe, Mn, Ni, Zn, Pb, Cr, Co, V) in filtered water samples, suspended water matter and water extracts from soils was determined by atomic absorption spectrometry using electrothermal atomization on a SOLAAR M6 device. Results. The article presents the results of macro - and microelement composition studies of Lake Teletskoye tributaries’ waters. It is shown that the waters of the studied tributaries are characterized by a low total content of the main salt composition components. A dependence of the content and distribution of trace elements in the “water – suspended matter” system on the catchment landscape and geochemical features was found. Conclusion. The content of the water-soluble forms of Cd, Cu, Fe, Mn, Zn, Pb, Co, V in Lake Teletskoye tributaries’ waters conforms to environmental and sanitary requirements. It was found that Fe, Zn and Cr migrate mainly as the soluble compounds, while Pb, Mn, Cu migrate mainly in suspension. It was revealed that the different soil cover structure of the eastern and western lake shores determines different conditions for the hydrochemical flow formation of their rivers and, as a result, forms the differences in the physical and chemical composition of the eastern and western tributaries’ waters.

Time and Moisture Effects on Total and Bioavailable Copper in Soil Water Extracts

2004 ◽  
Vol 33 (2) ◽  
pp. 505 ◽  
Author(s):  
Andreas Tom-Petersen ◽  
Hans Christian Bruun Hansen ◽  
Ole Nybroe
Keyword(s):  
Soil Water ◽  
Water Extracts ◽  
Moisture Effects

Phytotoxic Effect of Decaying Quackgrass (Agropyron repens) Residues

Weed Science ◽  
1979 ◽  
Vol 27 (6) ◽  
pp. 595-598 ◽  
Author(s):  
T. V. Toai ◽  
D. L. Linscott
Keyword(s):  
Incubation Temperature ◽  
Soil Surface ◽  
Water Soluble ◽  
Water Extracts ◽  
Phytotoxic Activity ◽  
Phytotoxic Effect ◽  
Effects Of Temperature ◽  
Incubation Temperatures ◽  
Toxin Formation ◽  
Agropyron Repens

We studied the effects of temperature (5, 10, 20, and 30 C) on the phytotoxic activity of decaying quackgrass [Agropyron repens (L.) Beauv.] leaves and rhizomes that were incubated in soils for 0, 1, 2, 4, and 6 weeks. Alfalfa (Medicago sativa L.) seeds were grown for 96 h in water, water extracts of control soils, and water extracts of soil with quackgrass rhizomes or leaves. Dried quackgrass rhizomes and leaves contained water-soluble toxins that inhibited alfalfa seedling development and growth. There was a strong interaction between incubation time and temperature on the development of additional toxins by decomposing quackgrass. High incubation temperature (30 C) accelerated toxin formation and ultimate decay. Intermediate temperature (20 C) delayed toxin formation and decay. Low incubation temperatures (5 C and 10 C) prevented formation of additional toxin. In all extracts of quackgrass and soil that had been incubated for 6 weeks, normal alfalfa seedling number equaled that in water. However, seedling growth varied with incubation temperatures.Treatment of quackgrass with glyphosate [N-(phosphonomethyl) glycine] in the greenhouse did not influence the toxicity of decaying quackgrass leaves. The highest toxic effect was noted after 1 week of decay on the soil surface.

Mobility of soil water-soluble organic matter during rice cultivation

2012 ◽  
Vol 38 (1) ◽  
pp. 40-42 ◽  
Author(s):  
O. A. Gutorova ◽  
A. Kh. Sheudzhen ◽  
A. G. Ladatko
Keyword(s):  
Organic Matter ◽  
Soil Water ◽  
Rice Cultivation ◽  
Water Soluble ◽  
Soluble Organic Matter

Excitation-Emission-Matrix Fluorescence Spectroscopy of Soil Water Extracts to Predict Nitrogen Mineralization Rates

2018 ◽  
Vol 82 (1) ◽  
pp. 126-135 ◽  
Author(s):  
Oshri Rinot ◽  
William R. Osterholz ◽  
Michael J. Castellano ◽  
Raphael Linker ◽  
Matt Liebman ◽  
...  
Keyword(s):  
Fluorescence Spectroscopy ◽  
Soil Water ◽  
Nitrogen Mineralization ◽  
Water Extracts ◽  
Excitation Emission Matrix

scholarly journals Vertical Distribution and Controlling Factors of Soil Inorganic Carbon in Poplar Plantations of Coastal Eastern China

Forests ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 83
Author(s):  
Sihan Wang ◽  
Weiwei Lu ◽  
Fangchao Zhang
Keyword(s):  
Vertical Distribution ◽  
Soil Water ◽  
Inorganic Carbon ◽  
Eastern China ◽  
Controlling Factors ◽  
Water Soluble ◽  
Soil Profiles ◽  
Soil Inorganic Carbon ◽  
Poplar Plantations ◽  
Soil Inorganic

Afforestation is a strategy to protect croplands and to sequestrate carbon in coastal areas. In addition, inorganic carbon is a considerable constitute of the coastal soil carbon pool. However, the vertical distribution and controlling factors of soil inorganic carbon (SIC) in plantations of coastal areas have been rarely studied. We analyzed the SIC content as well as physiochemical properties along soil profiles (0–100 cm) in young (YP) and mature (MP) poplar plantations in coastal eastern China. The soil profile was divided into six layers (0–10, 11–20, 21–40, 41–60, 61–80 and 81–100 cm) and a total of 36 soil samples were formed. The SIC content first increased from 0–10 cm (0.74%) to 11–20 cm (0.92%) and then fluctuated in the YP. In contrast, the SIC content increased with increasing soil depth until 40 cm and then leveled off, and the minimum and maximum appeared at 0–10 cm (0.54%) and 81–100 cm (0.98%) respectively in the MP. The soil inorganic carbon density was 12.05 and 12.93 kg m−2 within 0–100 cm in the YP and MP, respectively. Contrary to SIC, soil organic carbon (SOC) first decreased then levelled off within the soil profiles. Compared with the YP, the SIC content decreased 27.8% at 0–10 cm but increased 13.2% at 21–40 cm, meanwhile the SOC content in MP decreased 70.6% and 46.7% at 21–40 cm and 61–80 cm, respectively. The water-soluble Ca2+ and Mg2+ gradually decreased and increased, respectively within the soil profiles. The soil water-soluble Ca2+ increased 18.3% within 41–100 cm; however, the soil water-soluble Mg2+ decreased 32.7% within 21–100 cm in the MP when compared to the YP. Correlation analysis showed that SIC was negatively correlated with SOC, but positively correlated with soil pH and water-soluble Mg2+. Furthermore, structural equation modeling (SEM) indicated that SOC was the most important factor influencing the SIC content in the studied poplar plantations, indicating SOC sequestration promoted the dissolution of SIC. Therefore, our study highlights the trade-off between SIC and SOC in poplar plantations of coastal Eastern China.

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