WATER-SOLUBLE SALTS IN THE PARENT MATERIAL OF SOLONETZIC AND CHERNOZEMIC SOILS IN SASKATCHEWAN

1968 ◽  
Vol 48 (1) ◽  
pp. 43-48 ◽  
Author(s):  
A. K. Ballantyne
Keyword(s):  
No Value ◽  
Parent Material ◽  
Water Soluble ◽  
Soil Profiles ◽  
Soluble Salts ◽  
Low Sodium

The B, C1 and a C2 horizon were sampled from 26 Solonetz and 35 Orthic Chernozemic profiles. Water-soluble analyses were done on all samples. Soil profiles developed from saline parent material may be in either the Solonetzic or Chernozemic Order. Eighty-eight percent of the Solonetz and 34% of the Chernozemic profiles were developed on saline C2 horizons. Seventy-three percent of the Solonetz were developed on C2 horizons that were saline and contained over 40% water-soluble sodium. No Chernozemics developed on this type of C2 material. Forty-nine percent of the Chernozemics developed on non-saline, low-sodium C2 horizons. No Solonetz profiles developed on this type of C2 horizon. This information could be used to assist in the classification of Solonetzic and Chernozemic soils. The pH of the B, C1 or C2 horizons was of no value in distinguishing between Solonetzic and Chernozemic soils.

THE RELATIONSHIP OF WATER-SOLUBLE CATIONS TO FIELD SEPARATIONS OF CHERNOZEMIC AND SOLONETZIC SOILS

1963 ◽  
Vol 43 (2) ◽  
pp. 359-369 ◽  
Author(s):  
A. K. Ballantyne ◽  
J. S. Clayton
Keyword(s):  
Soil Samples ◽  
Soil Survey ◽  
Water Soluble ◽  
Saturated Soil ◽  
High Sodium ◽  
Low Sodium ◽  
Water Saturated ◽  
Relationship Of ◽  
The Relationship

It is suggested that cations present in extracts of water-saturated soil samples can be used to complement and substantiate the field classification of soils into the Solonetzic and Chernozemic Orders by the Canadian system, and that an evaluation of these cations together with pH can be used as substantiating criteria at the sub-group level.Two hundred and ninety-one profiles, sampled by the Saskatchewan Soil Survey during the 1959–61 seasons, have been separated into high, medium and low sodium profiles and on this basis correlated with the field classification. Most of the high sodium soils were in the Solonetzic Order, and the medium and low sodium in the Chernozemic Order.The proposed laboratory criteria gave over 80 per cent agreement with the field classification at the order level. This percentage was obtained from a range of 97 per cent for the Orthic Chernozem to 63 per cent for the Solonetz profile. The agreement at the lower level varied from 95 per cent for the Rego Chernozem to 38 for the Solonetz.

Potential anticonvulsants: Substituted N-benzylidene derivatives of 10-(4-aminopiperazino)-10,11-dihydrodibenzo[b,f]thiepins

1983 ◽  
Vol 48 (4) ◽  
pp. 1173-1186 ◽  
Author(s):  
Václav Bártl ◽  
Jiří Holubek ◽  
Emil Svátek ◽  
Marie Bartošová ◽  
Miroslav Protiva
Keyword(s):  
Acute Toxicity ◽  
Water Soluble ◽  
Hypotensive Activity ◽  
Anticonvulsant Effect ◽  
Maximal Electroshock ◽  
Soluble Salts ◽  
Sleeping Time ◽  
Central Depression ◽  
Derivatives Of ◽  
Electroshock Seizures

Reactions of 10-(4-aminopiperazino)-10,11-dihydrodibenzo[b,f]thiepins XIVa-XIVd with benzaldehyde, 3,4-dimethoxybenzaldehyde, 4-dimethylaminobenzaldehyde, salicylaldehyde, 3-ethoxy-4-hydroxybenzaldehyde, 2-(2-dimethylaminoethoxy)benzaldehyde, 3-(2-dimethylaminoethoxy)benzaldehyde and 3-ethoxy-4-(2-dimethylaminoethoxy)benzaldehyde afforded a series of 19 hydrazones IIIa-Xc. Some of them showed the expected anticonvulsant effect but only towards pentetrazole; antagonism of maximal electroshock seizures was not observed. In general, the products have a character of tranquillizers: in higher does they produce central depression, potentiate the thiopental sleeping time, have hypothermic action; in single cases antiamphetamine, antireserpine, antihistamine and cataleptic effects were observed. The water-soluble salts of the basic hydrazones VIIIa, VIIIc, IXc and Xc, administered parenterally, showed a rather high acute toxicity and revealed also adrenolytic and hypotensive activity.

Research into water-soluble salts in efflorescent pottery during long-term storage in a museum

2014 ◽  
Vol 89 ◽  
pp. 268-274 ◽  
Author(s):  
Pujun Jin ◽  
Weiqiang Zhang ◽  
Quanjun Wang ◽  
Xiaogang Yang ◽  
Sheng Sun ◽  
...  
Keyword(s):  
Water Soluble ◽  
Soluble Salts ◽  
Long Term Storage ◽  
Term Storage

Water-soluble Polysaccharides of Porphyra Species : a Note on the Classification of P. naiadum

Nature ◽  
1962 ◽  
Vol 195 (4839) ◽  
pp. 398-399 ◽  
Author(s):  
D. A. REES ◽  
E. CONWAY
Keyword(s):  
Water Soluble

Reconsidering the paleoclimate implications of magnetic susceptibility records of Holocene loessic soils

2021 ◽  
Author(s):  
Diana Jordanova ◽  
Neli Jordanova
Keyword(s):  
Magnetic Susceptibility ◽  
Parent Material ◽  
Chinese Loess Plateau ◽  
Absolute Difference ◽  
Physical Parameters ◽  
Soil Profiles ◽  
Chinese Loess ◽  
Loess Area ◽  
River Terraces ◽  
Paleoclimate Proxy

<p>Mass specific magnetic susceptibility variations with depth along soil profiles developed on loess parent material is one of the most frequently used physical parameters in local, regional and global correlations of loess deposits. It is also utilized as a paleo-precipitation proxy, defined either as absolute difference between susceptibilities of the enhanced B-horizon and parent loess, or as relative enhancement using ratios of magnetic parameters. These different approaches in the application of magnetic susceptibility as paleoclimate proxy lead us to perform a comparative study on a number of Holocene soil profiles developed on loess from European loess area and the Chinese Loess Plateau (CLP). We made a compilation of data including 20 profiles from North Bulgaria, 28 profiles from Eastern and Central Europe; and 26 profiles from the CLP. Minimum magnetic susceptibilities of the last glacial loess (X<sub>min</sub>) from the compiled data base for European and Chinese profiles show climate related variability, revealing multi linear relationship with both present day MAP and MAT values for the corresponding locations. Strong deviations of X<sub>min</sub> from this dependence display sites located at low elevation river terraces, Black sea coast and possessing large content of coarse silt and sand fractions. Pedogenic magnetic susceptibility (X<sub>pedo</sub>) defined as (X<sub>max</sub> - X<sub>min</sub>) with  X<sub>max</sub> determined from the youngest part (last 1500 – 2000 years B.P.) of the Holocene magnetic susceptibility records of Chinese sections and absolute X<sub>max</sub> of the European sites show systematic dependence on modern MAP and MAT values. This dependence is uniform for all sites with steppe vegetation, while higher scatter and steeper regression trends are observed for sites under mixed (steppe – forest) and forest vegetation. The study is financially supported by project No KP-06-N34/2 funded by the Bulgarian National Science Fund.</p>

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.

scholarly journals Methods for soil enhancement in geoheritage research: a case study from Veglia-Devero Natural Park (Lepontine Alps)

2021 ◽  
Author(s):  
Anna Masseroli ◽  
Irene M. Bollati ◽  
Luca Trombino ◽  
Manuela Pelfini
Keyword(s):  
Late Quaternary ◽  
Chemical Properties ◽  
Soil Characteristics ◽  
Parent Material ◽  
Soil Types ◽  
Conservation Strategies ◽  
Soil Profiles ◽  
Mountain Environments ◽  
Natural Park ◽  
Lepontine Alps

<p>In mountain environments, the high variability of soil forming factors (i.e., parent material, climate, relief, organism, time) is responsible for the presence of different soil types, which not only contribute to the pedodiversity but are also a component of the local cultural heritage.</p><p>Up to now, scarce attention has been paid to the soil in the geoheritage/geoconservation scientific analyses.</p><p>To promote soil as element concurring to mountain geoheritage definition, we propose a strategy to include pedological topics within a multidisciplinary trail planned in the Veglia-Devero Natural Park (Lepontine Alps). The geomorphological dynamicity and environmental change affecting during times the small mountain catchment of Buscagna hydrographic basin are illustrated with a specific address to soil characteristics. The physical and chemical properties, and pedological features of soils reflect the interaction among the other ecosystem components (i.e. geology, geomorphology and vegetation), underlining the role of soil as natural archive for reconstructing landscape evolution and for achieving a more complete assessment of Late Quaternary geomorphic events, especially surface processes.</p><p>Geopedological researches carried out in the study area, allowed to detect 7 soil profiles as potential sites of pedological interest, located in safe and accessible places, along already existing hiking paths. The selected soil profiles not only mirror the main soil types that characterize the area but also represent evidence of past environmental conditions and geomorphic dynamics.</p><p>The opportunities for hikers and mountaineers, to observe the exposed soils along the Buscagna valley, thanks to the presence of erosional scarps and subsidence areas, allow also to get more awareness of the need of geoheritage conservation strategies addressed to soil, especially in the mountain landscape where soil characteristics reflect the striking influence of its forming factors.</p>

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