The Role of Weeping Lovegrass,Eragrostis curvula, in the Rehabilitation of Deteriorated Arid and Semiarid Rangelands in Argentina
| Autor: | Juan Carlos Guevara, H. N. Le Houérou, O.R. Estevez, C.R. Stasi |
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| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | Arid Land Research and Management. 19:125-146 |
| ISSN: | 1532-4990 1532-4982 |
| DOI: | 10.1080/15324980590916530 |
| Popis: | Most of the rangelands of arid and semiarid zones of Argentina show some form of deterioration. The conformation of cow-calf production agroecosystems on the basis of perennial pastures such as weeping lovegrass [Eragrostis curvula (Shrad.) Nees] and rangelands has been postulated as one of the means to revert this situation. The purposes of the present study are: (a) to characterize the status of degradation of particular zones in which weeping lovegrass (WL) is cultivated in these regions; (b) to evaluate the impact of the strategic utilization of WL in the process of range improvement and rehabilitation; and (c) to assess the economic feasibility of WL seeding in the Monte rangelands as a case study. Published studies were reviewed for assessing the degradation status. The economic feasibility of WL seeding was examined varying the WL yield (0.8 to 2.4 Mg DM year −1), the carrying capacity of the rangelands (10 to 18 ha per head of cattle per year, AUY −1) and the cost of prohibited grazing (w... |
| Databáze: | OpenAIRE |
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