Ground-water flow, geochemistry, and effects of agricultural practices on nitrogen transport at study sites in the Piedmont and Coastal Plain physiographic provinces, Patuxent River Basin, Maryland /
by E. Randolph McFarland ; prepared in cooperation with the Maryland Department of the Environment.
|Main Author:||McFarland, E. Randolph.|
[Washington, D.C.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; 1997.
Water Supply /
Water Movements > Water Movements / Maryland.
Agricultural pollution > Agricultural pollution / Maryland > Agricultural pollution / Maryland / Patuxent River Watershed.
Groundwater flow > Groundwater flow / Maryland > Groundwater flow / Maryland / Patuxent River Watershed.
Nitrates > Nitrates / Environmental aspects > Nitrates / Environmental aspects / Maryland > Nitrates / Environmental aspects / Maryland / Patuxent River Watershed.
Shipping list no.: 97-0368-P.
v, 72 p. :
ill., maps ;
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