00633nam a2200157   450000500170000000800040001702000150002104000090003605000230004524502760006826000130034430000230035744000090038052100270038965000590041620170721153312.0000  a1901502953  aUOEL  aQH96.8.E9bI4 1999  aImpact of land-use change on nutrient loads from duffuse sourcesbproceedings of an international symposium held during IUGG 99,the XXII general Assembly of the International Union of Geodesy and Geophysics, at Birmingham, UK, 18-30 July 1999cedited by Louise Heathwaite  aUKbIAHS  avii, 271p. :bill.  aIAHS  aBibliography p.270-271  2NutrientsxNatural History (General) Biology (General)