Altitude gradient pattern of grassland restoration of quarry on the Qinghai-Tibet Plateau

It is very difficult to recover the alpine grassland on the Qinghai Tibet Plateau after being destroyed. However, the demand for economic construction forced the government to build highways on the Qinghai Tibet Plateau, leaving behind many quarries. However, it is uncertain whether these quarries can be restored and the extent of restoration. This study conducts a transect survey of 39 quarry-restored grasslands reseeded with Elymus nutans and adjacent natural grasslands on two recently constructed highways on the Qinghai–Tibet Plateau from 2800 to 5100 m above sea level. The first data set is the community survey data set of height, in which the rows describe the species names in the sample plots, the sample plots shown in the list and duplicates. The second data set is the community survey data set of coverage, in which the rows describe the species names in the sample plots, the sample plots shown in the list and duplicates. We believe that the height and coverage were not enough to evaluate the restoration, and the community species composition of the restored grassland was an important indicator to evaluate the restoration.