NRES 201 Lecture 11 Outline of Last Lecture I Soil spatial variability in the field II Techniques and tools for mapping soils III Making a soil survey IV Using soil surveys Outline of Current Lecture V Interpretive classification of soils VI Geographic information systems Current Lecture Building site development Concrete and steel corrosion Dwellings with or without basements Construction materials Gravel source roadfill source sand source source of reclamation material topsoil source Disaster recovery planning Large animal disposal clay linter material source composting rubble and debris disposal Land classification Tree and shrub suitability Farmland quality o Prime farmland prime farmland conditional farmland of statewide importance not prime farmland Hydric rating Taxonomic group Land capability class o Limitation ratings for agricultural production o Subclasses designate the type of limitation Erosion e Wetness drainage or flooding w Root zone limitation from acidity density or shallowness s These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute o o o o o o o o Climatic limitation c Class I Deep and well drained soils Nearly level topography Suited for continuous cropping Provide the greatest productivity at the lowest cost Class II Subject to some limitation for tillage and row cropping Conservation practices may be necessary Class III Subject to some limitation for tillage and row cropping Rotations must include crops for soil cover Drainage systems needed for w subclass Class IV Cultivation possible but very limited Cropping mostly to small grains sod or hay Row cropping requires no till and special conservation practices Wetness can also be a major limitation Class V Suitable for pasture but not cropping due to Frequent stream flooding Inadequate growing season Stony or rocky soil Ponds that cannot be drained Class VI Severe limitations restrict usage to Pasture Range Woodland Wildlife Restricted timber harvest Class VII Pasture improvement not feasible Special methods for timber harvest Class VIII No commercial plant or animal production Use for parks recreation or wildlife refuge Range in soil productivity Muscatune is our most productive soil Drummer is the state soil Romeo is our least productive soil Geographic Information Systems GIS Computer based system to aid in the collection maintenance storage analysis output and distribution of geographic spatial data
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