Hydro-environmental assesment and grazing capacityvaloration by thermo-pluviometrics indicators

For a sustainable management of grazing lands,  is necessary to know the  strategy of nature to sustain the grassland,in  consequence,  the  management  schemes  must  be  based  in  programs  related  to  an  environmental  characterizationand  adequate monitoring.  With  the aim  to  develop a  tool  to support  the  diagnosis  of  grasslands,  we  hereby  proposethe  application  of  the  Hydro-Environmental  Availability  Index  (HEAI),  with  scale  from  0  to  10.  According  to  theapplication of HEAI in 36 localities of Sonora, Mexico, five of them (13.9 %) fluctuated from 0 to 2.5, in consequence,their  grasslands  are  highly  vulnerable  to  drought,  with  very  low  possibilities  for  management.  Twenty  (55.6  %)oscillated from 2.5 to 5, suggesting a management with severe restrictions. Eleven (30.5 %) fluctuated from 5 to 7.5,proposing a sustainable management with adequate rotations and preventions during a drought, and none of localitiesreached  values  for  HEAI  >  7.5,  high  potential  for  sustainable  management,  with  appropriate  rotations.  It  must  beconsidered that the actions to prevent the effects of overgrazing, not always are enough to mitigate the overwhelmingconsequences  of  droughts,  which  are  exacerbated  by  climate  change.

Bibliographic Details

Main Authors:	García Munguía, Chefo Alberto, Ruíz Flores, Agustín, López Ordaz, Rufino, García Munguía, Alberto Margarito, Ibarra Juárez, Luis Arturo
Format:	Digital revista
Language:	spa
Published:	Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias 2014
Online Access:	https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/3661
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