 argue that miscanthus improves carbon input to the soil, and promote microorganism activity and diversity, which are important for soil particle aggregation and rehabilitation processes.On a former fly ash deposit site, with alkaline pH, nutrient deficiency, and little water-holding capacity, a miscanthus crop was successfully established—in the sense that the roots and rhizomes grew quite well, supporting and enhancing nitrification processes, although the above-ground dry weight yield was low because of the conditions.The authors argue that M. x giganteus' ability to improve soil quality even on contaminated land is a useful feature especially in a situation where organic amendments can be added.