00980naa a2200205 a 450000100080000000500110000800800410001910000220006024500950008226000090017752003360018665300210052265300270054365300260057065300220059665300150061870000180063370000170065177301060066814232292018-04-12       2001    bl ---       0--  u    #d1 aSOUZA NETO, J. de  aBiophysical and economic models for assessing impacts of change on grazingland ecosystems.  c2001  aPHYGROW, a hydrologic-based forage simulation model, was parameterized to represent a typical South Texas rench engaged in the production of cattle and mest goats with an indigenous population of white-tailed deer. Forage production and associated stocking rates for two cattle: goat ratios were simulated with POPMIX for 20 years.  aEconomic impacts  agrazingland ecosystems  aManagement strategies  aModel integration  aSimulation1 aCONNER, J. R.1 aSTUTH, J. W.  tRevista Brasileira de Engenharia Agrícola e Ambiental, Campina Grandegv. 5, n. 1, p. 135-137, 2001.