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  • Quantitative aspects of carbonate leaching of soils with differing ages and climates
  • Carbonate ; Geochemistry ; Leaching ; Pedogenesis ; Soil ; Soil properties ; Switzerland ; Weathering
  • Carbonate leaching rates in several soils in Switzerland and in the Lake Constance region were calculated and related to landscape development. The leached depth of the soil, the carbonate content and the soil density profile are sensitive to soil
  • age. A first database of carbonate leaching and its relationship to soil age is presented. A simple relationship between the amount of precipitation and carbonate losses was found.
  • Laboratory simulation of gley formation with stagnant and leaching water regimes
  • Modellvorstellungen zur Dynamik der Auslaugungsprozesse des Zechsteinsalzes in den Saxoniden der DDR. (Model conceptions of the dynamics involved in the zechstein salt leaching processes in the saxonides of GDR)
  • Ground-water reservoirs with stagnation brine, where liquid moves in the top layer only, come into existence in the course of natural salt leaching. Diffusion from the dormant liquid towards the flowing ground-water has to be considered
  • as the driving force for the continuation of the leaching process. The following conclusions can, among others, be drawn: The natural salt leaching proceeds as present so slowly that, apart from residual hollows in the overlying rock, there are no temporal
  • or spatial consequences in the way of terrain subsidence. Leaching is intensified when the hydrogeological regime is disturbed (mining drainage). When drainages stops, the original state is restored after a major period only. Gypsum leaching proceeds almost
  • Effects of fertiliser N and slurry on nitrate leaching - lysimeter studies on 5 soils
  • Agropedology ; Experimentation ; Fertilizer ; Ireland ; Leaching ; Nitrate ; Nitrogen ; Soil ; Soil properties
  • The results of a two-year lysimeter investigation into the effects of fertiliser nitrogen (N) combined with pig or cattle slurry applied in winter or early spring on nitrate (NO3-N) leaching are presented. Soil type, fertiliser N and a combination
  • Irrigation planning. 2. Water allocation for leaching and irrigation purposes
  • Factors affecting the leaching of nitrate to groundwater in the Republic of Ireland
  • Flow and chemical composition of drainage water from farmland in the Belgian loamy region. Part 2. Patterns of irons leaching with particular reference to nitrate
  • The nitrate quality limit of 50 mg NO3/l could be exceeded in the autumn, winter or spring, depending on the soil mineral nitrogen content and rainfall. Nitrogen leaching losses were related to rainfall distribution and agricultural practices
  • . They were lower for land under cereals than under sugar-beets. When the available nitrogen for leaching was high, nitrate and chloride were not leached together. At this moment, the NO3 concentration was positively related with the flowrate and the Ca
  • Long-term isovolumetric leaching of aluminium from rocks during weathering : implications for the genesis of saprolite
  • Acid rain ; Aluminium ; Brazil ; California ; Crystalline rocks ; Geochemistry ; Leaching ; Palaeo-environment ; Pedogenesis ; South Carolina ; United States ; Weathering
  • Aluminium ; Geochemistry ; Ground water;Underground water ; Laterite ; Leaching ; Malawi ; Peneplain ; Surface deposits ; Tropical zone ; Weathering
  • Leaching of aluminium from the weathering profile of the African surface in Malawi was deduced from the chemistry of a vadose profile. Its loss occurs where congruent kaolinite dissolution results in saprolite collapse, leaving a weakly lateritized
  • , sandy residual mantle. This leaching is a contemporary process, as shown by the precipitation of aluminosilicate evaporites in the dambos. This paper presents the results of determinations, by ICP-OES and AAS-graphite furnace, of aluminium levels
  • Sensitivity of DaisyGIS to LAI : implications for land use based modelling of nitrate leaching
  • Geographical information system ; Land use ; Leaching ; Modelling ; Nitrate ; Remote sensing ; Sensitivity analysis ; Vegetation index
  • Leaching of nitrate-N (NO3-N) from cropped and fallow soil - a lysimeter study with ambient and imposed rainfall regimes
  • Agropedology ; Cultivated land ; Drainage ; Experimentation ; Fertilizer ; Ireland ; Leaching ; Nitrate ; Pollution ; Soil properties ; Water quality
  • A three-year investigation into the effects of nitrogen (N) fertiliser rates and rainfall on nitrate-N (NO3-N) leaching from spring barley and Fallow was carried out in a lysimeter unit. The soils was well drained, moderately deep and similar
  • Arizona ; Experimental catchment ; Geochemistry ; Grain size distribution ; Leaching ; Soil ; Soil erosion ; Soil properties ; Trace-element ; Tracer ; United States of America
  • A leaching experiment using 5 REE oxides and gravelly, sandy loam soils was conducted and the leaching and binding characteristics of the oxides for the soils were examined. The experiment showed little leaching of the oxides and an enrichment
  • Geochemistry ; Leaching ; Palaeo-environment ; Palaeoclimate ; Palaeosol ; Quaternary ; Rwanda ; Soil properties ; Tropical zone
  • In this report, the AA. attempted to determine if extractable Fe, Al, and Mn provide age-dependent trends, evidence for downward movement, and leaching signals that relate the paleoclimatic influences. They also sought to determine the relative
  • Catena ; England ; Hydrochemistry ; Leaching ; Podsol ; Soil ; Solution load ; Somerset ; Spatial variation ; United Kingdom ; Water quality ; Watershed
  • assumption underlying this research is that the amount of exchangeable cations in soils reflects the nutrient stores and cation leaching processes across the slope where vegetation and parent materials are similar.
  • Galicia ; Granite ; Leaching ; Micromorphology ; Mineralogy ; Precipitation ; Spain ; Weathering
  • . The mineralogical nature of a newly formed product depends mainly on the intensity of the leaching to which the profile is subjected, which is influenced by the rainfall in the area where they are found, as well as the size of existing voids in the material.
  • Carbon ; Cold area ; Finland ; Hydrochemistry ; Hydrology ; Leaching ; Nitrogen ; Nutrient ; Solution load ; Watershed
  • Russian Karelia. In both areas the annual leaching and transport of nutrients were highly dependent on the hydrological conditions.
  • Infiltration ; Ireland ; Leaching ; Pollution ; Porosity ; Precipitation ; Soil ; Soil properties ; Soil water
  • A study was carried out on a structured soil in the south-east of Ireland to investigate flow patterns of water in soil. The results provided preliminary evidence for preferential flow in the soil. Nitrate leaching data, from a grazing study, tended
  • Formation and physical state of leached ferrallitic savanna soils of Mali
  • Preglacial weathering. Two stages have been recognized in the weathering process. The first stage is characterized by granular disintegration followed by the subsequent alteration of biotite into vermiculite, and leaching of K, Na and Mg. During
  • the second weathering stage plagioclase is altered into kaolinite, and the breakdown of dark minerals promotes leaching of Ca, Na, Fe and Mg. The residue has been slightly enriched in K-feldspar, quartz and clay minerals. Si and Al have not dissolved during