Doctor of Philosophy in Range Management

The Society for Range Management defines a rangeland as: "Land on which the native vegetation (climax or natural potential) is predominantly grasses, grass-like plants, or shrubs” (SRM 1989). They are lands which due to certain environmental limitations, such as low and erratic precipitation, low soil fertility, shallow or rocky soil, or steep slopes; they are not fit for conventional rain-fed agriculture.

Doctor of Philosophy in Soil Science

Global demand for food is projected to reach 3 billion tonnes in 2050 (FAO World Soil Charter). In order therefore to meet the related challenges of achieving this projected global demand for cereals and food security, proper soil management practices must undergo fundamental transformations noting that 33 percent of global soils are moderate to highly degraded due to erosion, nutrient depletion, acidification, salinization, compaction, and chemical pollution.