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  • Periodicals Archive Online (PAO)  (6,956)
  • Blackwell Publishing Ltd  (6,520)
  • 1985-1989  (9,818)
  • 1975-1979
  • 1960-1964  (3,658)
  • 1986  (9,818)
  • 1962  (3,658)
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  • 1985-1989  (9,818)
  • 1975-1979
  • 1960-1964  (3,658)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Principles of land appraisal and land use planning within the European Community (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. In the European Community (EC) a change towards more market-oriented land use planning is required because of surplus stocks of cereals and dairy products, while at the same time other agricultural goods have to be imported. The implementation of such a policy has to be based on a scientifically sound and objective inventory of the physical potential of the EC as a whole.Principles of such a physical land assessment are explained, using the concepts of the FAO-Framework for Land Evaluation and the Agro-ecological Zone Approach, but adapted to European conditions. The conclusions arrived at through this procedure lead to different alternatives and scenarios, and hence provide valuable background information for future land use planning.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00694.x
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  • 2
    Electronic Resource
    Electronic Resource
    Soil survey data needs when studying modern land use problems (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. Modern land use problems in the Netherlands are now focused on striking a balance between agricultural production, environmental protection, and nature and landscape conservation by means of new laws on soil protection. Quantitative expressions for crucial land qualities for different land management scenarios are needed to obtain adequate input for the decision making process emphasizing not only actual, but particularly potential conditions. Computer simulation techniques are being applied in this context. Three case studies are reviewed, covering: (i) adsorption of excess phosphate from animal manure; (ii) effects of lowering of water deficits for crops, and (iii) effects of soil tillage and compaction on crucial land qualities for agricultural production. Lack of representative basic data for simulation models inhibits their widespread practical application. Derivation of such basic data from existing soil-survey databases is therefore being discussed in terms of using various types of transfer functions, which allow more effective use of available data. In addition, geographical information systems are needed to allow rapid output for areas of land as represented on soil maps.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00695.x
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  • 3
    Electronic Resource
    Electronic Resource
    Computerized soil data used in agricultural water planning, Denmark (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. A nationwide soil database system has been established containing soil maps, analytical data, and soil classification. The system has been widely used in agricultural planning at county and national level. This paper describes the basic data used for the soil database system, and the exploitation of this system in agricultural water planning. The principles for calculating the irrigation need at county level are given and also those for nationwide mapping of the potential need for drainage. Mapping of potentially acid sulphate soils, which has given rise to legislation on drainage of wetlands, is described, and the future use of the soil database system in agricultural water planning is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00697.x
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  • 4
    Electronic Resource
    Electronic Resource
    Soil moisture regimes and credibility in the assessment of soil suitability for crops in Tuscany (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. Results of recent research on moisture regimes of surface water soils and on soil credibility are summarized, and proposals are made for the use of results in soil evaluation for selected crops.Measurements of water table depth show high variability from year to year and during the same season. Soil moisture regimes seem to affect soil management more than crop yield. A probabilistic calendar is needed for the occurrence of topsoil moisture content near the lower plastic limit in periods corresponding to the most important management practices. This is required in order to assess important soil qualities like workability and trafficability.Soil erosion is greatest when superficial run-off can create rills. This happens when run-off shear stresses exceed a threshold proportional to soil shear strength. Consequently, soil shear strength can be used as a measure of soil resistance to erosion. Probabilistic calendars are needed on the occurrence of heavy rainstorms able to create rills when the soil is most at risk.Entries for ratings of workability, trafficability and erosion risk are outlined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00696.x
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  • 5
    Electronic Resource
    Electronic Resource
    An improved method for combining map data (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. A system is described using data processed to combine maps from different sources in order to meet specific needs. The system, known as the KALEIDOS-INRA system, has many advantages over traditional map making and provides the user with better information. Its value is illustrated by a map showing the risk of drought to crops growing in central France.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00698.x
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  • 6
    Electronic Resource
    Electronic Resource
    EDITORIAL (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00685.x
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  • 7
    Electronic Resource
    Electronic Resource
    Use of soil and climatic data to predict hydraulic loading behaviour of Irish soils (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. The purpose of this study was to try to estimate from soil and climate data both absolute and temporal individual soil hydraulic loading limits under Irish conditions. The two concepts cumulative soil moisture deficit (CSMD) and winter rain acceptance potential were used.Cumulative soil moisture deficit (1956–75) ranged from 116 mm in the southeast to 2 mm in the northwest. Four regions were delineated with mean cumulative maximum deficits (mm) of 105.3, 57.7, 20.0, and 2.0 respectively. Consequently, except for Region 4, hydraulic overloading is unlikely to occur under normal farm practices during soil moisture deficit period. Soil moisture deficit was present in Region 1 from early April through October, in Region 2 from early May through September, in Region 3 from early May through August and in Region 4, only in July.The concept of winter rain acceptance potential (WRAP) has been used to assess the possibilities for farm effluent disposal outside of the SMD period. Some 49% of Irish soils have a very high to moderate WRAP, 36% have a low to very low WRAP. These latter categories are likely to exhibit problems if effluents are applied outside of the SMD period.Regional farm slurry storage duration requirements have been estimated from SMD and WRAP data. These are 11.3, 14.0, 16.7 and 20.0 weeks respectively for regions 1, 2, 3 and 4.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00699.x
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  • 8
    Electronic Resource
    Electronic Resource
    Salt-affected soils in England and Wales (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. Soils mainly in alluvial marine sediments around the coast of England and Wales, occupy about 6% of the agricultural land. The extent of salt-affected soils within these parent materials is unknown, but is believed to be significant from the evidence of existing soil surveys.The principal salt is sodium chloride, and the degree of salinity depends on depth to saline groundwater, the intensity of leaching, and the frequency and severity of past marine flooding. Evidence suggests that while the effects of the flooding are obvious and immediate, long-term salinity owes more to groundwater behaviour and chemistry.The amount of sodium in these soils, particularly the heavier-textured ones, makes them structurally unstable, especially when wet. The instability in turn makes them difficult to drain. Ameliorative treatments are possible, but are expensive and slow to take effect.In their natural or semi-natural state these soils form large areas of wetland or unimproved grassland, often of interest to conservationists. In spite of this, and their generally unfavourable properties for cultivation, extensive areas have become arable in recent years.Structural stability, salt content, and exchangeable sodium percentage are intimately linked and can be measured during soil survey, which then aids rational decisions about land use. Such a survey of the North Kent Marshes is presented as a case study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00700.x
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  • 9
    Electronic Resource
    Electronic Resource
    Cultivation and drainage performance on former opencast coal mining land (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. The effect of various cultivation sequences on the performance of field drainage systems was investigated in a number of case studies carried out on former opencast coal mining land. Comparisons of drain flow patterns before and after cultivation indicated marked deteriorations in performance following preparation of the final seedbed. Neither mouldboard ploughing nor discing alone affected drain flow.Soil moisture, hydraulic conductivity and drain flow data suggested that drainage performance may have deteriorated as a result, initially, of secondary drainage channels being blocked with fine materials translocated from the seedbed. A subsequent collapse of tilth to form a surface pan reinforced this adverse effect. It was not clear to what extent the failure of secondary drainage channels contributed to this collapse.Implications for the management of former opencast land and the advantages of various cultivation techniques are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00686.x
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  • 10
    Electronic Resource
    Electronic Resource
    Field evidence on nitrogen losses by denitrification (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. Evidence based on observations of colour, growth and measurements of stem nitrate on carrots and sugar beet, colour and yield of grass, and of yield of wheat in different areas of Britain showed that growth and yield may have been substantially reduced in the wet summer of 1985 due to deficiency of nitrogen following large losses by denitrification. An account of die processes involved is given, together with observations and tests on affected soils. These were compared with field measurements of denitrification also made in 1985, under barley.Examination of climatic data suggests that there were several periods in May, June, July and August when the soils close to the surface would have been saturated for days on end, and in the presence of many tine roots typical of crops at that time of year, the onset of an anaerobic state and accompanying denitrification would have been highly likely. The field evidence in 1985 suggests that nitrogen losses may have been much higher than those reported previously from research station investigations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00687.x
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