00739naa a2200181 a 450000100080000000500110000800800410001910000220006024500620008226000090014452002300015365000160038365000130039965300370041265300330044965300250048277300500050717887511996-05-28       1978    bl ---       0--  u    #d1 aWOODMANSEE, R. G.  aAdditions and losses of nitrogen in grassland ecosystems.  c1978  aAdditions of N to grassland ecosystems; Losses of N from grassland ecosystems; Conceptual implications; Input-output dependency on hydrologic cycle; Role of consumers in N cycle of grasslands; Ecosystem maturity and stability  aEcossistema  aPastagem  aAdditions and losses of nitrogen  aAdicao e perda de nitrogenio  aGrassland ecosystems  tBiosciencegv.28, n.7, p.448-453, July, 1978.