haku: @indexterm COMPUTER MODELS / yhteensä: 12
viite: 2 / 12
| Tekijä: | Beukes, P. C. Cowling, R. M. Higgins, S. I. |
| Otsikko: | An ecological economic simulation model of a non- selective grazing system in the Nama Karoo, South Africa |
| Lehti: | Ecological Economics
2002 : AUG, VOL. 42:1-2, p. 221-242 |
| Asiasana: | COMPUTER MODELS INFRASTRUCTURES MODELS ANALYTICAL REVIEW |
| Kieli: | eng |
| Tiivistelmä: | The Nama Karoo region of South Africa is characterized by low (~ 200 mm) and variable annual rainfall, which results in grass and shrub biomass production, which is low and highly variable in space and time. These characteristics of Nama Karoo rangelands challenge the ability of the region's livestock farmers to make a sustainable living. In this paper the authors model a farming system, which attempts to create an environmental buffer of forage reserves by restricting access of livestock within numerous small camps. This is achieved by using a multi-camp infrastructure, which forces the livestock to remove non-selectively most of the available forage within a camp. |
SCIMA