USING THE USDA-NRCS SOIL SURVEY DATABASE TO EVALUATE AMPHIBOLE CONTENT OF SOILS IN THE UNITED STATESBased on these data, amphibole content in United States soils is somewhat evenly distributed across the country. Maps of asbestos mine locations published by USGS in the U.S. show few locations...
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Then we merged these raster layers with the corresponding classified p-value raster layers to produce maps that displayed both trend direction and category of trend significance. We calculated and tabulated proportion of pixels of given crop/land cover that fell into the three trend categories:(a)...