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  2. SWAT model - Wikipedia

    en.wikipedia.org/wiki/SWAT_model

    SWAT is a continuous time model that operates on a daily time step at basin scale. The objective of such a model is to predict the long-term impacts in large basins of management and also timing of agricultural practices within a year (i.e., crop rotations, planting and harvest dates, irrigation, fertilizer, and pesticide application rates and timing).

  3. Land cover maps - Wikipedia

    en.wikipedia.org/wiki/Land_cover_maps

    A supervised classification is a system of classification in which the user builds a series of randomly generated training datasets or spectral signatures representing different land-use and land-cover (LULC) classes and applies these datasets in machine learning models to predict and spatially classify LULC patterns and evaluate classification accuracies.

  4. Runoff curve number - Wikipedia

    en.wikipedia.org/wiki/Runoff_curve_number

    B Poor: <50% ground cover; Fair: 50-75% ground cover; Good: >75% ground cover. C Actual curve number is less than 30; use CN = 30 for runoff computation. D CN's shown were computed for areas with 50% woods and 50% grass (pasture) cover. Other combinations of conditions may be computed from the CN's for woods and pasture.

  5. Digital soil mapping - Wikipedia

    en.wikipedia.org/wiki/Digital_soil_mapping

    Digital soil mapping (DSM) in soil science, also referred to as predictive soil mapping [1] or pedometric mapping, is the computer-assisted production of digital maps of soil types and soil properties. Soil mapping, in general, involves the creation and population of spatial soil information by the use of field and laboratory observational ...

  6. Here are answers to important North Texas lawn-care topics ...

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  7. Topsoil - Wikipedia

    en.wikipedia.org/wiki/Topsoil

    An optimum figure for topsoil in the UK is a C:N ratio of less than 20:1. A sawdust base typically has a high C:N ratio in the order of 400:1 while an alfalfa hay has a low carbonaceous content and can typically have a C:N ratio around 12:1.

  8. High Plains farmers are experimenting with novel techniques ...

    www.aol.com/entertainment/high-plains-farmers...

    A minority of farmers in the Texas High Plains region are looking to organic and regenerative techniques to keep their soil healthy year round, despite a dry climate.

  9. Soil survey - Wikipedia

    en.wikipedia.org/wiki/Soil_survey

    In the past it could take years to publish a paper soil survey. Today it takes only moments for changes to go live to the public. The most current soil survey data is made available for high end GIS users such as professional consulting companies and universities. Typical information in a published county soil survey includes the following: [1]

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    soil runoff curve numbers