Effect of artificial moisturing measures on recovery of vegetation and soil in mining gold area

The present study took source regions of the two rivers (Irtysh River and Ulungur River) in Altai Mountain as the study area to analyze the influence of different artificial measures including different moisturing measures combined with soil measures and biological measures on restoration of abandoned field in the gold mining area. The results showed that the plant diversity of abandoned mining areas was 96.67% less than that of the original grassland. After artificial irrigation, the number of species increased 21.7 times, and the soil-stone ratio increased 4.5 times. Drip irrigation, flood irrigation, sprinkler irrigation three measures. The flood irrigation measures was the best for soil recovery compared with drip irrigation and sprinkler irrigation which improved soil-stone ratio by 38.0% and 33.1% after soil covering, improved soil-stone ratio by 21.7% and 11.4% after sheep manure supplement, improved soil-stone ratio by 8.9% and 8.5% after sowing, improved soil-stone ratio by 24.2% and 2.9% after of planting black currant. The cost of drip irrigation was higher than that of sprinkling irrigation which was also higher than that of flood irrigation. The flood irrigation was restricted by geographical position, and the sprinkling irrigation was widely applicable. This study provided a theoretical basis for ecological restoration of abandoned mining areas in other areas.