1. The effectiveness of different grass species in mine rehabilitation in highland regions.
2. Comparing the ecological benefits of guinea grass, Rhodes grass, Bahia grass, Kikuyu grass, and Ruzizi grass in mining areas.
3. Understanding the physiological and biochemical mechanisms of grass species in tolerating heavy metals and improving soil fertility in mining areas.
4. Assessing the long-term impact of grass species on soil stabilization and erosion control in highland mining areas.
5. Investigating the potential for using a combination of different grass species for comprehensive mine rehabilitation strategies in highland regions.
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