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  • Institute of Physics  (19,048)
  • Blackwell Publishing Ltd  (11,700)
  • 1995-1999
  • 1985-1989  (30,748)
  • 1975-1979
  • 1950-1954
  • 1989  (16,926)
  • 1986  (13,822)
Collection
Keywords
Publisher
Years
  • 1995-1999
  • 1985-1989  (30,748)
  • 1975-1979
  • 1950-1954
Year
  • 1
    Electronic Resource
    Electronic Resource
    A regression model for nitrate leaching in Northern Ireland (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 5 (1989), 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 model has been developed based on multiple regression which explains 95% of the variation in nitrate loading of the major rivers in the 4453 km2 Lough Neagh catchment for the years 1971–1987. The model relates loading of nitrate in the hydrological year to fertilizer usage, previous summer rainfall, summer temperature of the current year and December-May flow. It indicates that there is an increase in nitrate loading associated with fertilizer usage, and that the equivalent of 13% of nitrogen fertilizer that is lost as leachate comprises 50% of the river loadings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1989.tb00764.x
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  • 2
    Electronic Resource
    Electronic Resource
    Soil erosion and its control in the loess plateau of China (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 5 (1989), 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 loess plateau in China is the most developed region of loess in the world in terms of extent, thickness and depositional sequence. It is also the region with the most serious soil erosion in the world. This paper reviews the factors and reasons for soil erosion in this area. The loess is prone to vertical cleavage and its surface soils are soft and loose. Rainstorms are frequent with intense rain concentrated during the summer. Irrational land use and exploitive management have been carried out for thousands of years and express themselves through the loss of grassland and natural forests. Finally, some soil conservation schemes for use in the loess plateau are suggested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1989.tb00765.x
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  • 3
    Electronic Resource
    Electronic Resource
    BOOK REVIEW (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 5 (1989), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Book reviews in this article: Land resources in the Loess Plateau of China Editor Professor Zhou Xianmo (S.M. Chou).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1989.tb00767.x
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  • 4
    Electronic Resource
    Electronic Resource
    WOFOST: a simulation model of crop production (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 5 (1989), 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 WOFOST simulation model is a tool for analysing the growth and production of field crops under a wide range of weather and soil conditions. Such an analysis is important first to assess to what extent crop production is limited by the factors of light, moisture and macro-nutrients, and second to estimate what improvements are possible. The theoretical concept of a production situation, as modelled by WOFOST, is explained, as is the hierarchy of potential production and water-limited and nutrient-limited production situations in the analysis. The organization of the computer files in the model, the structure of the FORTRAN source program and the available standard sets of data are described briefly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1989.tb00755.x
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  • 5
    Electronic Resource
    Electronic Resource
    Application of nested analysis of variance in mapping procedures for land evaluation (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 5 (1989), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. Assuming that other sources of error can be neglected, the reliability of a land suitability classification depends on the homogeneity of physiographically delineated map units with regard to land qualities. The map unit homogeneity of a small area in France was estimated using 64 observation points, arranged according to a nested sampling scheme, followed by nested analysis of variance.The analysis shows that in this area map units are too heterogeneous to accept the suitability classification as being completely reliable. However, alternative procedures using methods of optimal interpolation to map gradual change within the physiographic units are too expensive at a mapping scale of 1:25000 or smaller. It is not possible to produce completely accurate suitability maps at smaller scales. However, incorporating nested sampling and analysis of variance as standard procedures in land evaluation surveys costs little effort and yields at least an estimate of map accuracy and reliability of the suitability classification.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1989.tb00756.x
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  • 6
    Electronic Resource
    Electronic Resource
    Integrated resource monitoring by means of remote sensing, GIS and spatial modelling in Arid Environments (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 5 (1989), 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 ultimate goal of resource monitoring is to analyse the spatial distribution of the balance between supply and demand of a certain resource. Remote sensing techniques are commonly used for the assessment of the supply of resources. By integrating remote sensing with the related techniques of geographical information systems and spatial modelling, the demand as well as the accessibility of resources can be analysed. The article gives an overview over methods for integrated resource monitoring. Examples from arid environments are also presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1989.tb00757.x
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  • 7
    Electronic Resource
    Electronic Resource
    The influence of land capability on rural land sales: a case study in Renfrewshire, Scotland (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 5 (1989), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. Since 1981 information on land sales has been recorded in the Land Register for some counties in Scotland. Rural land sale data for areas of more than 10 hectares in Renfrewshire have been analysed to determine the extent to which land capability, elevation and slope have an influence on land value. Although many factors influence the price paid for rural land, the effect of land capability in particular is demonstrated, with altitude having a minor effect. Using a best fit curvilinear model price ranges are predicted on the basis of land capability classes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1989.tb00758.x
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  • 8
    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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  • 9
    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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  • 10
    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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