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PRINTED MAT

作者	McFarland, E. Randolph.

標題 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.

出版資料	[Washington, D.C.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by the U.S. Geological Survey, Branch of Information Services, 1997.

複本

說明	v, 72 p. : ill., maps ; 28 cm.
系列	U.S. Geological Survey water-supply paper ; 2449
Notes	Shipping list no.: 97-0368-P.
With:	Bound With: Effects of simulated ground-water pumping and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts /
Bibliography	Includes bibliographical references.
主題	Nitrates -- Environmental aspects -- Maryland -- Patuxent River Watershed.
	Groundwater flow -- Maryland -- Patuxent River Watershed.
	Agricultural pollution -- Maryland -- Patuxent River Watershed.
	Agrochemicals.
	Water Movements -- Maryland.
	Water Supply -- Maryland.
添加作者	Maryland. Department of the Environment.
	Geological Survey (U.S.)
Spine Title	Ground-water flow, geochemistry, and effects of agricultural practices on nitrogen transport, Patuxent River Basin, Maryland
國際標準書號	0607870389
政府出版物號碼	0625
	I 19.13:2449