Six-year Vegetation Change and Influencing Environmental Factors at Revegetation Sites in the Former Mine

Six-year vegetation survey has been done at four sites of slope covering constructions in the former mine, con­sidering the effects of environmental factors. Spraying of green plants seeds in spring enhanced the establishment of Artemisia indica var. maximowiczii from the beginning, compared with Festuca rubra, which shows the wintery grow pattern. On the contrary, spraying of the seeds before snowing enhanced the establishment of F. rubra, which would be tolerant in the winter time. Additionally, high soil volumetric water content influenced the establishment of high wet-tolerant native plants such as Typha latifolia, Salix species and Pinus densiflora. Low relative effective photon flux density would increase the growth of shade-tolerant plant, Festuca rubra. Our results clarified that differences of seed spraying timing, the soil water content, and the light environment influenced the vegetation of green plants and native plants.