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Grazing Season: There are five major phases of scientific range management:
(1) Choice of proper grazing season use. This involves a selection of the correct kind of grazing season animal : cattle, sheep, game, or some combination. It also involves an inventory of forage resources to aid in determining the proper number of animals, the season of the year in which they are to be grazed, and the best grazing season system. Included in the grazing season system are such topics as methods of herding sheep and methods of rotating grazing between different areas of the range and different seasons of the year.
The technical manager of rangeland must have at his command a complex methodology enabling him to foresee changes in vegetation and tendency toward soil erosion. He must be capable of estimating grazing season capacity, which is a product of both the kind and the amount of vegetation. Capacity is also influenced by the amount and distribution of drinking water for the animals, the topography, and the length of the grazing season. To avoid overuse the manager must be able to appraise the utilization of forage at any time during the season. He must also determine the condition of the range : the actual production of forage as compared with the land's capability. The trend toward improvement or deterioration is also important.
Savanna grass-ind develops in regions of high temperature that ave a distinct wet and dry season. Growth is ipid in the wet season, but the plants become ry and low in quality in the dry season. Widely >aced drought-resistant trees may occur in some
•eas such as in the savanna parklands of Africa id Australia. Savannas are subject to flooding i the wet season and to extensive burning in le dry season. These grasslands are heavily•azed by large numbers of cattle. Major prob-ms are poor grass quality in the dry season, irasites, and disease. The tsetse fly is a major•oblem in Africa. There are no true savannas North America.
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