This paper reports on properties of soils on two contiguous hillslopes, spanning over 1000 m from upper to lower slope positions. The objective was to determine catenary related variation in soilproperties and to interpret pedogenesis on the two
Variation of some soilproperties along two toposequences on quartzite schist and banded gneiss in Southwestern Nigeria
Catena ; Land use ; Nigeria ; Soil ; Soil classification ; Soilproperties ; Taxonomy
This study was undertaken to examine the variation of some soilproperties 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.
Soil containing rock fragments: effects on infiltration
Rock fragments in soil: surface dynamics
Infiltration ; Model ; Rock ; Soil ; Soilproperties
Procedures for quantifying soil and surface rock fragments are reviewed. Within the soil the physical properties and hydraulic properties that affect infiltration are shown to be influenced by rock fragments. Physical properties discussed are bulk
density, porosity and water content. Hydraulic properties that affect infiltration are water retention, saturated conductivity and unsaturated conductivity. Rock fragments on the soil surface have been reported to both increase or decrease infiltration
In Holocene soils relict patterned ground and cryoturbated soil horizons were the most common relict soilproperties. This paper provides a description of these relict soilproperties and the environments under which they developed.
The AA. relate the amounts and distribution of P to the nodule content, chemical properties and development stage of soils along a hillslope in northern Ghana with the objective of determining the factors that influence P fertility with respect
Cumulic soils on Rakata, Sertung and Panjang (Krakatau Is.) and properties of each Solum
Clay mineral ; Indonesia ; Island ; Pedogenesis ; Pyroclastic ; Soil ; Soilproperties ; Taxonomy ; Volcanic eruption ; Volcanism
Comparison of the properties and development of soils mainly derived from the re-deposited 1883 pyroclastic flows on Rakata, Sertung and Panjang (Krakatau islands).
The red soils, their origin, properties, use and management in Greece
Special Issue. Red Mediterranean soils
Agricultural land use ; Clay mineral ; Concept ; Greece ; Irrigation ; Land use ; Mediterranean climate ; Pedogenesis ; Red soil ; Soil ; Soilproperties
The objectives of this paper are to discuss concepts regarding the geographic distribution and the origin of the Greek red soils, to present basic data on their properties and to discuss their use and management.
[b1] Agricultural University of Athens, Dept. of Soil Science and Agricultural Chemistry, Athens, Grece
[a1] Dept. of Soil Science, University of Saskatchewan, Saskatoon, Canada
Vegetation chronosequence in Hong Kong : soilproperties and successional development
Chronosequence ; Climax ; Forest ; Grassland ; Hong Kong ; Soil ; Soilproperties ; Vegetation
The soilproperties of a vegetation chronosequence in Hong Kong involving a grassland, a 22-year mixed woodland, a 52-year forest and 2 graduation 150-year old climax (feng shui) forests were examined. All the 3 hypotheses tested are rejected. While
the feng shui forests differed markedly in soilproperties, exotic species were superior to native species in soil amelioration. There was no accumulation of organic carbon, nitrogen and cation nutrients with ecological succession, due to the influence
Soilproperties related to soil development were measured in 6 profiles over approximately 180 years of soil development on recessional moraines of the Hailuogou Glacier, Sichuan. It is hypothesized that soil development is strictly time-dependent
. Field and laboratory work indicate that as soil develops from initially coarse gravel outwash, the properties (pH, accumulation of soil organic C and N) undergo a progressive physical and chemical change such that there is a considerable profile
differentiation between the youngest and the oldest soils.
Influence of soilproperties on the aggregation of some Mediterranean soils and the use of aggregate size and stability as land degradation indicators
Soil aggregation in arid and semi-arid environments
Aggregate ; Alicante ; Clay mineral ; Grain size distribution ; Indicator ; Mediterranean area ; Organic materials ; Soil ; Soil degradation ; Soil erosion ; Soilproperties ; Soil water ; Spain
Soil aggregation in relation to other soilproperties was studied along a climatological transect in the Southeast of Spain. Three sites were selected along this transect ranging from semiarid to subhumid climatological conditions. The aggregate
size distribution, the macro and microaggregate stability of the superficial soil horizon and their relations with other soilproperties were analysed. A general conceptual scheme of associations between aggregate size distribution, water-stable
In this study, changes in the structure and physical properties of the surface crust of an Andisol, especially during the rainfall, were measured by using a rainfall simulator, and effects of surface crust on hydrology and soil erodibility
are discussed. Soil material used was an Andisol (clay loam) taken from an orchard in Yamanashi prefecture of Japan.
Morphology, mineralogy and exchange properties as related to geomorphic position of soils in Tiko plain, Coastal West Cameroon
The present paper examines the relationships between soilproperties and their geomorphic position in the Tiko plain. The emphasis is on the mineralogy and the exchange properties of the soils.
A review of the influence of freeze-thaw cycles on soil geotechnical properties
Canada ; Cold area ; Freeze-thaw cycle ; Geotechnics ; Periglacial features ; Permafrost ; Quebec ; Soilproperties
Freeze-thaw cycling affects the geotechnical properties of soils and must be taken into account when selecting soil parameters for stability and deformation analysis of slopes, embankments and cuts in cold regions, especially those underlain
by permafrost. This review examines methods of investigation, testing techniques and the impact of freeze-thaw processes on the physical and mechanical properties of soils.
This paper investigates how certain soilproperties and processes are influenced by climatic conditions and how these condition the spatial and temporal distribution of soilproperties. For this purpose, a fairly homogeneous Mediterranean
climatological and altitudinal gradient in terms of lithology, soils and vegetation was selected in the province of Alicante. Some variables were taken as indicators (runoff, soil moisture, aggregate distribution and stability) of different processes
(infiltration, soil water regimes, aggregation). These variables were measured at different temporal (monthly, seasonally) and spatial (site, slope, patch) scales.
Geomorphic controls on the physical and hydrologic properties of soils in a valley floor
Alluvial cone ; Australia ; Floodplain ; Grain size distribution ; Hydrology ; New South Wales ; Rill wash ; Soil ; Soilproperties ; Spatial variation ; Watershed
The distribution of soil hydraulic and physical properties strongly influences runoff processes in landscapes. A technique that links the estimation and distribution of soil hydraulic properties in valleys, with easily identified geomorphic features
, was developed along a 2 km length of a valley at Brooks Creek in New South Wales, Australia. Soil physical and hydraulic property data were collected across a set of floodplain and fan features within the valley and analysed statistically to determine if soil
properties varied significantly between geomorphic features and stratigraphic layers.
Soil horizons are the results of pedological processes and classes of soil horizon descriptions are seen as fundamental to soil classification. A fuzzy-sets approach to horizon classes is suggested to deal with the intergrading and multivariate
Hydric properties of some spanish soils in relation to their rock fragment content: implications for runoff and vegetation
Rock fragments in soil: surface dynamics
Castilla-León ; Grain size distribution ; Rock ; Runoff ; Soil ; Soilproperties ; Soil water ; Spain ; Valencia ; Vegetation
This paper examines the influence of rock fragments on the hydric properties of some Spanish soils and, as far as the present knowledge allows, to draw conclusions on the development of vegetation and on the production of surface runoff.
were applied on field scale for preliminary investigation of variation of different soilproperties. Thirteen physical and chemical soil variables were surveyed.