scholarly journals Cryogenic soils in the area of Batagaika crater in Northern Yakutia

2020 ◽  
pp. 52-99
Author(s):  
Yurij Kirillovich Vasil'chuk ◽  
Jessica Yur'evna Vasil'chuk ◽  
Alexander Pavlovich Ginzburg
Keyword(s):  
Soil Cover ◽  
Middle Part ◽  
Alluvial Deposits ◽  
Reference Base ◽  
Permafrost Rocks ◽  
Cryogenic Soils ◽  
World Reference Base ◽  
The Subject ◽  
Ph Level

The subject of this research is the soil and catena soils in the area of Batagaika crater located in Verkhoyansk District of Northern Yakutia. Soils are usually represented by Cryosols Gleyic and Podzols Entic, which are formed on eluvial and eluvial-deluvial deposits under larch forests. Exploration of soils was carried out in 2017, 2018 and 2019. On the slope to the Batagaika crater is the soil-geochemical catena, which included the ridge-top surface of the slope of Kirgilyah Mountain, the middle part of the slope, as well as levelled surfaces of Batagaika crater. Soil types are described in accordance with the classification of soils of Russia (2004) and the World Reference Base of Soil Resources (2014 WRB). The following conclusions were made: 1) The soil cover in the area Batagaika crater features various types of soils formed on the permafrost rocks, mainly Cryosols Gleyic, found in various landscape conditions, and Podzols Entic are also sporadically distributed in the area. On alluvial deposits in the valley of the Batagaika River may develop Podzols Haplic. Leptosols Lithic are confined to the elevation of the relief with bedrock located close to the surface; 2). The main processes typical for soils in the area of Batagaika crater are: cryogenic structuring, organic matter accumulation, coarse--humus accumulative processes, gleyification; 3) Nearby the horizon of permafrost rocks in the area of Batagaika crater is marked a local minimum of PH level in Podzols and Cryosols.

scholarly journals ЦИФРОВАЯ ПОЧВЕННАЯ КАРТА ВОДОСБОРА РЕКИ СОКОЛОВКА (ТЕРРИТОРИЯ ВЕРХНЕУССУРИЙСКОГО СТАЦИОНАРА ФНЦ БИОРАЗНООБРАЗИЯ ДВО РАН)

2019 ◽  
Author(s):  
A.A. Tereshkina ◽  
N.F. Pshenichnikova ◽  
A.N. Bugaets ◽  
O.M. Golodnaya ◽  
S.M. Krasnopeev
Keyword(s):  
Soil Classification ◽  
Soil Resources ◽  
Reference Base ◽  
Experimental Station ◽  
Digital Soil Map ◽  
Modern Soil ◽  
World Reference Base ◽  
The Russian Federation ◽  
The Right

В работе приведены предварительные результаты создания цифровой почвенной карты для бассейна р. Правая Соколовка, территории Верхнеуссурийского стационара (ВУС) ФНЦ Биоразнообразия наземной биоты Восточной Азии ДВО РАН 1: 50 000. По природным условиям территория типична для среднегорного пояса, представляет собой характерный низкосреднегорный участок южного СихотэАлиня. Климат района формируется под влиянием восточноазиатского муссона. В качестве топографической основы использована цифровая модель рельефа с пространственным разрешением 30 м (SRTM30), план лесонасаждений Верхнеуссурийского стационара, геологическая карта М 1: 200 000. Основными единицами карты являются почвенные подтипы. Номенклатура почв дана по региональной классификации Г. И. Иванова, выполнена адаптация к современной почвенной классификации Российской Федерации и проведена корреляция с номенклатурой почв Всемирной реферативной базой почвенных ресурсов (WRB). Каждый почвенный ареал включает данные по условиям формирования почв на уровне подтипа. Всего выделено десять подтипов. Показано, что в почвеннорастительном покрове четко выражена вертикальная зональность, представленная двумя почвеннорастительными поясами: горных буротаежных и горноподзолистых почв темнохвойных лесов и поясом горнолесных бурых почв хвойношироколиственных лесов. В поясе темнохвойных лесов в пределах высот 800 1000 м распространены горные ржавоземы грубогумусовые иллювиальногумусированные, составляющие 23,8 от общей площади бассейна. В поясе хвойношироколиственных лесов в основном распространены буроземы (70 от общей площади водосбора). Среди почв пойменных ландшафтов преобладают аллювиальные серогумусовые (дерновые) типичные. На основе информации по генетическим горизонтам создана база данных гидрофизических характеристик почв. По литературным источникам создана база данных физических характеристик почв (гранулометрический состав, глубина, вес, содержание гумуса) по генетическим горизонтам почвенных профилей (45 разрезов). С помощью алгоритмов обработки пространственных данных выполнен анализ численных характеристик морфометрии рельефа (средняя высота, уклон, площадь) почвенных ареалов.The digital soil map (1: 50 000) of the Right Sokolovka River basin the territory of the Upper Ussurian experimental station of the Centre of Biodiversity of the terrestrial biota of East Asia, FEB RAS. The main map units are soil subtypes. The soil nomenclature is given according to the regional classification, the adaptation to the modern soil classification of the Russian Federation was carried out and correlation with the soil nomenclature by the World Reference Base of Soil Resources was made. The calculation and preliminary analysis of the numerical characteristics of the morphometry of the topography of the soil areas has been performed.

Classification of Soils: World Reference Base (WRB) for soil resources

2008 ◽  
pp. 120-122 ◽  
Author(s):  
Ward Chesworth ◽  
Marta Camps Arbestain ◽  
Felipe Macías ◽  
Otto Spaargaren ◽  
Otto Spaargaren ◽  
...  
Keyword(s):  
Soil Resources ◽  
Reference Base ◽  
World Reference Base

scholarly journals Characterization and Classification of Soils of Jalingo Metropolis, North-east, Nigeria

2018 ◽  
pp. 72-80
Author(s):  
Osujieke D.N ◽  
Obasi N.S. ◽  
Imadojemu P.E ◽  
Ekawa M. ◽  
Angyu M.D.
Keyword(s):  
Soil Depth ◽  
Clay Fraction ◽  
Exchange Capacity ◽  
Descriptive Statistics ◽  
Soil Taxonomy ◽  
Sand Fraction ◽  
Reference Base ◽  
North East ◽  
World Reference Base

The study was aimed at the characterizing and the classifying of soils of Jalingo metropo- lis in Taraba State, North-East Nigeria. Profile pit was dug on each of the three different sites of the study area as identified using free survey. The profile pits were described and sampled bases on horizon differentiation for laboratory analyses. A total of 10 samples were collected. Data generated were analyzed using descriptive statistics to determine their coefficient of variation. The result indicated that the horizons were mostly reddish when moist at different contrasting level. The textural classes were mostly loamy sand while the sub-angular blocky structure was observed in the entire subsurface horizons. The horizons of the pedons were well drained. Sand fraction had means of 826.80 g/kg, 816.80 g/kg and 766.8 g/kg for pedons 1, 2, and 3 respectively. Clay fraction increased in an in- creasing soil depth which formed an argillic horizon. Sand fraction, bulk density and parti- cle density recorded low variation (≥0 % ≤5.22 %) in among the pedons. Soil pH(H2O) had a mean of 6.40 in pedon 1, 6.43 in pedon 2 and 6.41 in pedon 3. Organic carbon ranged from ≥2.0 g/kg ≤0.43 g/kg while cation exchange capacity ranged from ≥4.58 cmol/kg ≤5.01 cmol/kg among the pedons. The percent base saturation had a mean of 66.6 %, 65.1 % and 66 % in pedon 1, 2 and 3. Hence, pedons 1 and 2 were classified as Grossarenic Kandiustalfs (Arenic Lixisols), while pedon 3 was classified as Arenic Kandi- ustalfs (Loamic Lixisols) according to USDA soil taxonomy and correlated with world reference base.

Classification of soils: World Reference Base (WRB) soil profiles

2008 ◽  
pp. 122-122
Author(s):  
Ward Chesworth ◽  
Marta Camps Arbestain ◽  
Felipe Macías ◽  
Otto Spaargaren ◽  
Otto Spaargaren ◽  
...  
Keyword(s):  
Soil Profiles ◽  
Reference Base ◽  
World Reference Base

Diversity and main properties of soils of the Gronfjord area (Svalbard archipelago)

2018 ◽  
Vol 8 (1) ◽  
pp. 43-59 ◽  
Author(s):  
Elizaveta Iaroslavovna Iavid ◽  
Veronika Nikolaevna Kondakova ◽  
Vyacheslav Igorevich Polyakov ◽  
Evgeny Vasilyevic Abakumov
Keyword(s):  
Soil Cover ◽  
Morphological Structure ◽  
Soil Formation ◽  
Soil Classification ◽  
Svalbard Archipelago ◽  
Climate Conditions ◽  
Reference Base ◽  
Relative Air Humidity ◽  
World Reference Base ◽  
Russian Soil

Svalbard archipelago is characterized by specific climate conditions, high air temperature and relative air humidity, which are not typical for high latitudes. Such conditions affect soil-forming processes. Classification and morphological structure of the soil cover on the Spitsbergen archipelago are still poorly understood. The aim of current research was to reveal diverse soil taxons in the Gronfjord area and characterize framework of its formation. As the results of this work, the authors provide the description of the investigated soils and their taxonomy in accordance with World Reference Base for Soil Resources (IUSS Working Group 2015) and the new Russian soil classification system. Chemical parameters of the soil, as well and the data on soil horizons properties were measured using vertical electric resistivity sounding method. In total, 15 soil profiles were made and the studied soils were referred to six Soil Reference Groups with domination of Leptosols and Regosols. The profiles were made in different landscapes that allowed to determine the similarities and differences in soil cover of the area. The main factors affected soil formation are cryogenic processes combined with gleyfication and cambic alteration of soil material.

scholarly journals Classification of mountain soils in a subalpine zone – a case study from the Bieszczady Mountains (SE Poland)

2019 ◽  
Vol 70 (2) ◽  
pp. 170-177
Author(s):  
Łukasz Musielok ◽  
Marek Drewnik ◽  
Wojciech Szymański ◽  
Mateusz Stolarczyk
Keyword(s):  
Organic Carbon ◽  
Soil Classification ◽  
Parent Material ◽  
Reference Base ◽  
Redoximorphic Features ◽  
Se Poland ◽  
Subalpine Zone ◽  
World Reference Base

Abstract The aim of the study was to test the suitability of the 6th edition of Polish Soil Classification (SGP6) in reflecting the typical features of subalpine Bieszczady Mts. soils in comparison with the 5th edition of Polish Soil Classification (SGP5) and the newest version of World Reference Base for Soil Resources (WRB). Five soil profiles located in differentiated in terms of the parent material, topography and vegetation conditions of the natural environment were investigated. On the basis of described morphology and determined properties soils were classified according to different soil classifications. All soils under study were featured by presence of thick A horizons and high content of soil organic carbon accumulated even very deep in the profiles. Some of the mineral topsoil layers were classified as umbric/umbrik horizons. Moreover cambic/kambik horizons were present and in some cases also weak redoximorphic features occurred. The SGP6 enabled to distinguish soils with a thick, organic carbon-rich A horizons as umbrisols, a newly created subtype of grey soils. Furthermore, the soil taxonomic position according to SGP6 was more detailed in relation to the soil trophic status (in case of brown soils) and occurrence of weak redoximorphic features. That was reflected in number of subtypes to which analyzed soils were classified – 4 in SGP6 vs 2 in SGP5.

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