Analyse de système ; Catena ; Géographie physique ; Géomorphologie ; Théorie
All landscapes (in humid climates) can be considered as a superposition and juxtaposition of catenas , each catena consisting on top of a flat eluvial, in the middle of a steep colluvial and at the bottom of a flat alluvial zone. Catenas had
originally been observed in connection with soil surveys| here it is maintained that they have a much deeper systems-theoretical significance.
Soilcatenas of calcareous tills, Whiskey Basin, Wyoming, USA
Carbonate ; Carbonate rock ; Catena ; Moraine ; Pedogenesis ; Slope gradient ; Soil ; Soil properties ; United States of America ; Watershed ; Wyoming
Bassin-versant ; Carbonate ; Catena ; Etats-Unis ; Moraine ; Pente de versant ; Propriétés du sol ; Pédogenèse ; Roche carbonatée ; Sol ; Wyoming
The AA. describe catenas developed on calcareous moraines of Pinedale and Bull Lake ages at Whikey Basin on the eastern flank of the Wind River Range, Wyoming, in 2 separate valleys. Both catenas in both valleys contain primary carbonates
but there are topographic differences between them. The AA. suggest that differences in catena development mostly result from the differences in slope length between the jakey's Fork and Torrey Creek catenas.
Variation in soil-catena characteristics of moraines with time and climate, South Island, New Zealand
Catena ; Climatic variation ; Geochemistry ; Moraine ; New Zealand ; Pedogenesis ; Soil erosion ; Soil properties ; South Island ; Time
Catena ; Erosion des sols ; Géochimie ; Moraine ; Nouvelle-Zélande ; Propriétés du sol ; Pédogenèse ; South Island ; Temps ; Variation climatique
This research has two main goals: 1) to test the use of field properties of soilcatenas for relative-age studies of moraines in relatively dry and wet areas in New Zealand, and 2) to determine the variation in chemical properties downslope in each
catena, to document trends in chemical properties with time in two markedly different climates.
Zur Characteristik einer Catena am Nordrand des Thüringer Beckens (Caractéristiques d'une catena en bordure nord du bassin thuringien)
Allemagne RD ; Catena ; Chaîne de sols ; Géographie de l'Europe ; Pédologie ; Thüringer Becken ; Versant
The catena concept is an indispensable basis for revelation of the system interrelation for soil cover, natural region and landscape in relief terrain. By help of a regional example the interrelation between vertical and areal structures
of the ground along the catena is discussed preferably by reference to soil consolidation features. - (IH)
Action anthropique ; Catena ; Déboisement ; Erosion des sols ; Guatemala ; Paléo-écologie ; Pente de versant ; Sol ; Zone intertropicale
the late 1980s. The catenas discussed are affected by the downslope movement of soil by slow geological and rapid human-induced processes of overland and pipe flow.
This article investigates the toposequences of soils in the last primary forested areas of the Petexbatún region in the southwestern Petén to compare these with sites that have been slashed and burned and cultivated with short or no fallows since
Catena ; Dynamique de versant ; Erosion des sols ; Granulométrie ; Modèle ; Propriété du sol ; Sol ; Transport sédimentaire ; Versant
In this work, numerical simulation is used as an exploratory tool to investigate the potential influence of dynamic soilcatena with the long term evolution of hillslopes. The models consider only very simplified hillslope profiles with a prescribed
relation between surface form and soil texture that has been observed by a number of workers.
Aluminium mobility along a geochemical catena in an alpine watershed, Front Range, Colorado
Aluminium ; Catchment area;Watershed ; Catenas ; Colorado ; Geochemistry ; Mountain ; Pedogenesis ; Precipitation ; Regional geology ; Soil ; Soil water ; United States
Aluminium ; Bassin-versant ; Catena ; Colorado ; Eau du sol ; Etats-Unis ; Géochimie ; Géologie régionale ; Montagne ; Précipitation ; Pédogenèse ; Sol
Soils and soil solutions were studied in order to assess the mobility of Al in an alpine watershed. The concept of a geochemical catena was invoked to evaluate the spatial relationships of Al and the elements that control its solubility in alpine
Soil variation on north and southslope catenas on a kame in southeast Wisconsin
Catena ; Kame ; Lithology ; Microclimate ; Pedogenesis ; Slope ; Slope exposure ; Soil properties ; Spatial variation ; United States of America ; Vegetation ; Wisconsin
Catena ; Etats-Unis ; Exposition de versant ; Kame ; Lithologie ; Microclimat ; Propriétés du sol ; Pédogenèse ; Variation spatiale ; Versant ; Végétation ; Wisconsin
Soils from two catenas on north- and south-facing slopes of a kame were analyzed to determine the effect of lithology, topography, and microclimate on profile development. The differences in soil profile development are attributed to sediment facies
Catena ; Cultural capacity ; Nature park ; Portugal ; Soil ; Soilcatena ; Soil classification ; Soil evolution ; Soil properties ; Soil science
Aptitude culturale ; Arrábida ; Catena ; Chaîne de sols ; Classification des sols ; Evolution du sol ; Fertilité des sols ; Parc naturel ; Portugal ; Propriétés du sol ; Pédologie ; Sol
Etude des sols de 4 catenae découpant le Parc naturel de l'Arrábida. Classification FAO de ces sols et comparaison avec la classification utilisée dans la Carte des sols du Portugal. - (DBF)
Spatial distribution of surface rock fragments along catenas in semiarid Arizona and Nevada, USA
Rock fragments in soil: surface dynamics
Arizona ; Catena ; Forecast ; Model ; Nevada ; Rock ; Semi-arid area ; Slope gradient ; Soil ; Soil erosion ; United States ; Watershed
Arizona ; Bassin-versant ; Catena ; Domaine semi-aride ; Erosion des sols ; Etats-Unis ; Fragment de roche ; Modèle ; Nevada ; Pente de versant ; Prévision ; Roche ; Sol
The major objectives of this study are to determine if a slope gradient-surface rock fragment cover relation exists on various catenas of semiarid Arizona and develop an equation to describe this relation.
Mid-Holocene erosion of soilcatenas on moraines near the type Pinedale Till, Wind River Range, Wyoming
C 14 dating ; Catena ; Moraine ; Pedogenesis ; Quaternary ; Soil erosion ; Soil properties ; United States ; Wyoming
Catena ; Datation C 14 ; Erosion des sols ; Etats-Unis ; Moraine ; Propriétés du sol ; Pédogenèse ; Quaternaire ; Wyoming
of slope erosion has occurred along adjacent catenas on some of the moraines in this region. This study corroborates results of previous work that suggests that data from complete catenas are more useful for estimating the characteristic soil development
Buried soils are described from the floors of four kettles on Pinedale piedmont moraines of the southwestern Wind River Range, Wyoming, near the type locality of the Pinedale Till. The buried soils indicate that a previously unreported episode
Etude de deux chaînes de sol sur basalte dans un climat semi-aride et un climat tropical humide. La comparaison révèle que la catena semi-aride est neutre à alcaline avec une faible teneur en carbone organique et des sols peu profonds, alors que la
catena en milieu tropical humide est acide à neutre avec une forte proportion de carbone organique et des sols profonds. - (PLK)
Impact of rainfall and topography on the distribution of clays and major cations in granitic catenas of southern Africa
Catena ; Clay mineral ; National park ; Pedogenesis ; Precipitation ; Slope gradient ; Soil properties ; South Africa ; Transvaal
Afrique du Sud ; Argile minéral ; Catena ; Kruger ; Parc national ; Pente de versant ; Propriétés du sol ; Précipitation ; Pédogenèse ; Transvaal
Arcilla mineral ; Catena ; Inclinación de la vertiente ; Parque nacional ; Pedogénesis ; Precipitación ; Propiedades del suelo ; Transvaal ; África del Sur
Soilcatenas integrate and amplify gravity transfer and differentiation processes of eluviation and illuviation in soil profiles. The AA. quantified differences in these redistribution processes along granitic catenas across an arid to sub-humid
climate gradient in Kruger National Park, South Africa. They measured soil properties in 9 catenas sampled from 3 areas receiving annual rainfall of 470 mm (arid zone), 550 mm (semi-arid zone) and 730 mm (sub-humid zone). As rainfall increased, kaolinite
sites. Clay movement and storage conditioned other soil properties such as CEC, base cation distribution, base saturation and pH. The AA. highlight climate and topography as significant drivers of catena differentiation, properties and evolution.
replaced smectite as the dominant clay mineral in all landscape positions across the catenas. Clay redistribution along catenas was sensitive to climate with the least amount of redistribution occurring in the dry sites and the most occurring in the wet
Soilcatenas to estimate ages of movements on normal fault scarps, with an example from the Wasatch fault zone, Utah, USA
Catena ; Dating ; Earthquake ; Fault ; Fault scarp ; Geochronology ; Palaeogeography ; Pedogenesis ; Semi-arid area ; Soil ; Stratigraphy ; United States of America ; Utah
Trenches excavated across fault scarps on a 13 ka delta surface at Brigham City, Utah, document 4 types of soil-catena phenomena. 2 soilcatenas were used to evaluate the applicability of a continuity approach to paleoearthquake dating, by which
percentages of total development time represented by each soil at a fault scarp footslope could be estimated.
This article endeavours to show how indices used for estimating biodiversity in ecology may also be employed to determine the diversity of soil landscapes.
Catena ; Clay mineral ; Lithology ; Slope gradient ; Soil ; Soil properties ; Spatial analysis ; Terra rossa ; United States of America ; Wisconsin
Analyse spatiale ; Argile minéral ; Catena ; Etats-Unis ; Lithologie ; Pente de versant ; Propriétés du sol ; Sol ; Terra rossa ; Wisconsin
Análisis espacial ; Arcilla mineral ; Catena ; Estados Unidos ; Inclinación de la vertiente ; Litología ; Propiedades del suelo ; Suelo ; Terra rossa
The AA. have sampled 144 pedons of 16 catenas with different slope aspects and curvatures in a 70 km2 area in Wisconsin. Half of all the pedons had a red clay subsoil. The thickness of the red clay ranged from 4 cm to 60 cm with an average thickness
of 25 cm. The red clay was found in every part of the landscape except the valley bottoms : it was present in soils on summits, shoulders, backslopes, and footslopes. The red clay is only found over dolostone, but not present on all dolostone ridges
[b1] Univ. of Wisconsin - Madison Dept. of Soil Science, Madison, Etats-Unis
Variation of some soil properties along two toposequences on quartzite schist and banded gneiss in Southwestern Nigeria
Catena ; Land use ; Nigeria ; Soil ; Soil classification ; Soil properties ; Taxonomy
Catena ; Classification des sols ; Nigéria ; Propriétés du sol ; Sol ; Taxonomie ; Utilisation du sol
This study was undertaken to examine the variation of some soil properties along the toposeqence to illustrate the need for such approach to complement soil classification in allocating areas of land to specific uses along the toposequence
The A. presents the meeting and its objective: to discuss the various concepts of soil horizons and the role that soil horizons play in soil characterization, classification and mapping. This number of Catena contains selected papers of this meeting.