FAST FACTS
Damaged veld requires special measures known as radical veld improvement.
The first step is to restore the soil’s hydrology by breaking the impenetrable topsoil layer to improve water infiltration.
Bush control requires the assistance of a knowledgeable consultant.
Many livestock farms in South Africa suffer from resource damage such as denuded areas with little or no vegetation cover, water erosion, bush encroachment and alien plant invasion, all of which result in water wastage. In these cases, the land cannot be rehabilitated through normal grazing practices; special measures, which fall under ‘radical veld improvement’, are necessary.
RESTORATION
In bare areas, the topsoil has been removed by wind and water erosion, exposing the rock-hard subsoil with low water infiltration and leaving the soil dry and with few places where seedlings can establish themselves. The first step in the rehabilitation process, therefore, is to restore the soil’s hydrology by breaking the impenetrable topsoil layer to improve water infiltration. There are two ways of doing this, and one’s choice will depend primarily on the condition of the exposed soil (hardness and thickness) and the size of the bare area.
• Hoof action or use of organic matter
Where bare patches are few and relatively small, and the topsoil can be broken by the trampling effect of animal hooves, the loosening process can be done by concentrating a high number of livestock on it for short periods. This is known as hoof action.
この記事は Farmer's Weekly の November 27, 2020 版に掲載されています。
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この記事は Farmer's Weekly の November 27, 2020 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、8,500 以上の雑誌や新聞にアクセスしてください。
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