Soil loss tolerance for a specific soil, also known as the T value, is the maximum average annual soil loss expressed as tons per acre per year that will permit current production levels to be maintained economically and indefinitely. T values range from 1 to 5 tons per acre per year.
The most general level of classification in the USDA system of Soil Taxonomy is the Soil Order. Soil orders are frequently defined by a single dominant characteristic affecting soils in that location, e.g., the prevalent vegetation, the type of parent material, or the climate variables such as lack of precipitation or the presence of permafrost….
Layer displays the estimated percentage of adults who are in obese across all counties in the United States. These figures are multi-year modeled estimates based on survey data from the CDC Behavioral Risk Factor Surveillance System.
Layer displays the estimated percentage of adults who do not participate in any leisure-time physical activity. These figures are multi-year modeled estimates based on survey data from the CDC Behavioral Risk Factor Surveillance System.
This layer shows the percentage of Medicare Beneficiaries with hypertension (high blood pressure). The prevalence of chronic conditions among Medicare beneficiaries based on Medicare insurance claims data in 2014.
Layers display information about student performance on 4th grade English Language Arts standardized tests.
Layer displays mortality data from the CDC’s National Vital Statistics System – Mortality database. Data are 5-year aggregates for 2010-14 and grouped by ICD-10 codes.
Layer displays breast cancer incidence rates per 100,000 population by state and county. Additional map layers from this update include incidence rates for breast, cervical, colon / rectum, and prostate cancer.
This layer displays the location or intersection of fatal crashes occurring in 2015.
Layer displays the percentage of claims for prescription drugs that were for opioid drugs in 2013. Data is available by county, ZIP Code Tabulation Area (ZCTA) and by physician (address).