scholarly journals Morphological features of sod-podzolic soils, lying on dense carbonate rocks of Small Polissya

Author(s):  
Mariana Salyuk

Results of field researches of morphological features of sod-podzolic soils, laying on dense carbonate rocks are analyzed. Morphological features of genetic horizons are characterized. Major differences in morphological structure of shallowly and deeply lying differences are shown. Key words: Small Polissya, morphogenetic peculiarities, sod-pidzolic soils, laid rocks, dense carbonate rocks.

Author(s):  
Oksana Pidkova

The morphological structure of low sod-podzolic and middle sod-podzolic soils of Roztochchya is analyzed as an example of key area of Potelych. Defined and analyzed micro morphological features of their soil making and underlying rocks. It is found out that sod-podzolic soils were formed on the same type water-ice loamy sands, which are underlain by calcite, sandstone and moraine. The soils cover of key area due to lithological differences is analyzed. Key words: sod-podzolic soils, soils making and underlying rocks, morphological structure, micromorphological features.


Author(s):  
Volodymyr Gaskevych ◽  
Maria Netzyk

The characteristic of the genetic and geographic features of peat soils of Small Polissya was done. The geography of peat soils was outlined on the results of field and laboratory studies. Morphological structure, physical and physical-chemical properties of peat soils were analyzed. The current agroecological status of peat soil and the measures of the rational use and protection were considered. Key words: peat soils, peat, geography of peat soils, morphological features, drainage, degradation, soil protection.


1986 ◽  
Vol 66 (4) ◽  
pp. 751-755 ◽  
Author(s):  
C. WANG ◽  
P. A. SCHUPPLI

Determination of oxalate-extractable Si and Al is useful in assessing the degree of accumulation of allophane-like materials in Podzolic soils. Three procedures were tested for determining Si: manual spectrophotometry, automated spectrophotometry and atomic absorption. For concentrations of oxalate-extractable Si above 0.5 g kg−1, there was no significant difference among results by the three procedures. For lower concentrations of Si, results by atomic absorption were higher than those by the spectrophotometric procedures. Determination by Si by autoanalyzer is the preferred procedure as it is convenient, sensitive and reliable. Key words: Oxalate Si, Podzolic soil, autoanalyzer


2021 ◽  
pp. 10-15
Author(s):  
Volodymyr I. Chermak ◽  
Ihor I. Chermak ◽  
Chukwuanyinonso O. Ikeotuonye ◽  
Anatolii Ya. Senchuk

To study morphological features of the placenta in women in labor, pregnancy which complicated by preeclampsia we studied 26 placentae, of which 17 were from pregnant women with mild to moderate preeclampsia (basic group) and 9 from healthy women (control group). Histologically the study was conducted with methodically recommendations of T.D. Zadorozhnaya et al. for light microscopy. During the study of morphological features of the placenta in women in labor with preeclampsia were installed morphological changes in the placenta, which reflect a tendency to develop compensatory-adaptive reactions following their stress and exhaustion, which is a sign of placental insufficiency. Received data allow claiming a high frequency of development placental insufficiency in pregnant women with risk factors such as chronic salpingo-oophoritis, anemia, late preeclampsia, and inflammation diseases kidney.


2021 ◽  
Vol 66 (05) ◽  
pp. 45-48
Author(s):  
Tərlan Əliş qızı Əliyeva ◽  

Our language reflects the historical memory, traditions, ethnic and moral views of our people and so on. it is our invaluable spiritual wealth that always lives in us. One of the main tasks of the Azerbaijani language is to educate the young generation in the spirit of love for our national and spiritual resources, ancient history, loyalty to our people and, most importantly, knowledge of the subtleties of the language, using these inexhaustible opportunities. When using historical comments as a tool in the process of teaching the morphology of the Azerbaijani language in the acquisition of grammatical forms regulated by a number of intra-linguistic and extra-linguistic events that are difficult to comprehend, students gain more information about the morphological structure of our language. The use of historical comments in Azerbaijani language lessons should be done systematically. The advantages of referring to its ancient and rich history in the study of the modern state of language are reflected in the correct definition of the morphological structure of the language. We can even point out the importance of commenting on the history of writing in the teaching of the alphabet. In the process of teaching morphology, we can note the importance of commentary in the deep mastery of individual speech senses. The study of morphological features of the Azerbaijani language is based on the principle of history. Because the goal is to instill in today's young generation some information about the history of our language. Key words: Azerbaijani language, morphology, history, modern state of language, derivations, word creation, suffixes, historical commentary


1986 ◽  
Vol 66 (1) ◽  
pp. 21-30 ◽  
Author(s):  
C. WANG ◽  
J. A. McKEAGUE

Pedons were described, sampled and classified at 5-m intervals along a 130-m transect in an area typical of the southern Laurentian Highlands in order to assess short-range soil variability. Orthic Ferro-Humic Podzol was the dominant subgroup (25 of 27 sites). Differences in depth to bedrock and in soil water regime resulted in four soil families; bedrock was exposed at one site. At 21 of the 27 sites, however, the pedons were classified in one family: Orthic Ferro-Humic Podzol, coarse loamy, cold, humid. Differences in thicknesses and sequences of horizons resulted in a total of at least nine soil series. At scales of 1:20 000 or somewhat smaller, the soils of map units in the area would be most appropriately indicated as slope phases (10–40% slopes) of families. The dominant family would be the one indicated above with inclusions of shallow to extremely shallow phases and bedrock outcrops. Key words: Soil variability, Podzolic soils, classification of pedons


Author(s):  
A. Cevik-Demirkan ◽  
V. Ozdemir ◽  
I. Demirkan ◽  
I. Turkmenoglu

This study documents the detailed features of the morphological structure and the innervation areas of the plexus brachialis in the chinchilla (Chinchilla lanigera). The animals (5 female and 5 male) were euthanased with ketamine hydrocloride and xylazine hydrocloride combination, 60 mg/kg and 6 mg/kg, respectively. Skin, muscles and nerves were dissected under a stereo-microscope. The brachial plexus of the chinchilla is formed by rami ventrales of C5-C8, T1 and T2, and possesses a single truncus. The subscapular nerve is formed by the rami of the spinal nerves originating from C6 (one thin ramus) and C7 (one thick and 2 thin rami). These nerves innervate the subscapular and teres minor muscles. The long thoracic nerve, before joining with the brachial plexus, obtains branches from C6 and C7 in 5 cadavers (3 male, 2 female), from C7 in 4 cadavers (2 male, 2 female) and from C6-C8 in only 1 female cadaver. These nerves disperse in variable combinations to form the extrinsic and intrinstic named, nerves of the thoracic limb. An undefined nerve branch originates from the rami ventrales of C7, C8 and T1 spinal nerves enter the coracobrachial muscle.


Author(s):  
Douglas C. Walker

In the evolution of morphological studies, morphological features and markedness have come to play increasingly important rôles. Feature notation in morphology allows the development of the notion of natural morphological class, renders explicit much of the internal structure of paradigms and permits the exploitation, suitably adapted, of many of the results obtained in phonology. Markedness considerations, particularly when linked to general theories of morphology, again highlight morphological structure, constrain the variety of permitted analyses, and indicate, at least in part, the expected direction of historical change. In the sections to follow, I will present an analysis of Old French nominal and adjectival inflection which makes key use of morphological features and the differences between the marked and unmarked values of these features. This study will be particularly concerned with constraining the morphological analysis of Old French and conversely, with using Old French data to investigate more general properties of morphological systems.


1992 ◽  
Vol 72 (3) ◽  
pp. 295-298
Author(s):  
C. Veer ◽  
C. Wang

A forced-air jet technique was compared with the conventional method for cleaning the exposure of soils and facilitating the description of macro-pores, roots and structure in horizontal and vertical soil surfaces under field conditions. The forced-air technique prevents clogging of pores and enhances the exposure of soil morphological features. As a result, soil description as well as pore and root counts are much improved. Key words: Soil description, biopore counts, root counts


1994 ◽  
Vol 72 (5) ◽  
pp. 597-600
Author(s):  
Jirí Komárek

A new heteropolar nostocalean cyanoprokaryote Microchaete robinsonii sp.nov. is described from the benthic periphytic assemblage found on stones in the eutrophic Souris River near Dunclody in southwestern Manitoba, Canada. This species belongs to the group of species with narrow trichomes attenuated to the apex but never forming hairs. The morphology of this species is described and its taxonomic position within the genus Microchaete is presented. It differs from other Microchaete species by morphology of filaments, trichomes and sheaths, dimensions, mode of disintegration of trichomes into hormogonia, and its ecology. The morphological features of heteropolar nostocalean genera useful in generic delimitation are reviewed and discussed. Key words: cyanoprokaryotes, Microchaete, new species, rivers, periphyton, Canada.


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