https://extension.psu.edu/prevalence-of-highly-erodible-land-hel-and-implications-for-pennsylvania
Prevalence of Highly Erodible Land (HEL) and Implications for Pennsylvania
Most Pennsylvania farmland is highly erodible. An implemented conservation plan or system is needed for farms with Highly Erodible Land (HEL) receiving USDA...
prevalencehighlylandhelimplications
https://search.usa.gov/search?affiliate=coastalscience.noaa.gov&query=erodible+corridors
erodible corridors - NCCOS Search Results
corridorssearchresults