Economics of Australian Soil Conditions 1996/97 – Relative Yield From Acidity (%)

\n\nRelative Yield From Acidity (%) dataset is one of 11 national surfaces,\nrepresented by ~1km grids, relating to economic opportunities associated with\nsoil condition. All dollar values are given in 1996/97 Australian dollars.\nThere are three sub-types of data in this dataset: relative yields, gross\nbenefits and impact costs. Each is described as follows:1. Relative yield\n(RY): This is the yield of the crop or pasture, relative to its full potential\nexpressed as a percentage. It is equal to actual yield divided by potential\nyield. The relative yield surfaces, measured as a ratio (0 to 1) and\nrepresented with a 1km grid, include: * ry_salt2000; ry_salt2020: The relative\nyield of salinity in the year 2000 and 2020* ry_Acid; ry_Esp: The relative\nyield from soil acidity and soil sodicity* ry_min: The limiting factor\nrelative yield a minimum of ry_salt2000, ry_acid, ry_esp and ry_min.*\nlim_fact:Factor most limiting yield a of acidity, sodicity and salinity 2.\nGross benefit (GB): The gross benefit is the additional profit at full equity\nattainable through agricultural production if the yield-limiting factor of\nsalinity, acidity or sodicity were repaired without cost. As such it can be\nconsidered an approximate investment ceiling on treating the soil. The gross\nbenefit grids are measured in $/ha/yr and include:* gb97a; gb97e; gb97s a for\nsoil acidity; sodicity; salinity* gb97m a the combined limiting factor gross\nbenefit. 3. Impact cost (ic97s): This is the decline in agricultural profit at\nfull equity due to worsening dryland salinity severity and extent over the\ntime period 2000 to 2020. It is measured in $/ha/yr. It is determined only\nthrough changes in crop yield as a consequence of changes in dryland salinity.\nImpact cost can be considered the loss in profit at full equity due to\nworsening salinity over the 20yr time period. Keywords: Economics, Natural\nResources, Australia, Salinity, Sodicity, Acidity, Soil TreatmentData is in\nalbers and unprojected, using WGS84 and GDA94.\n\nSee [further metadata](http://data.daff.gov.au/anrdl/metadata_files/pa_easc_r9cl\n__08312a07.xml) for more detail.\n\n