Study on treatment technology of industrial and mining wasteland in Shenmu City

Abstract

In order to implement the basic state policy of cherishing and rationally using land and strictly protecting cultivated land, effectively break the bottleneck of strategic resource development and urban development, optimize the land use structure, raise the level of economical and intensive land use, promote the balance between urban and rural areas and the sustainable economic and social development, and realize the overall development and protection of cultivated land. In the pilot project of reclamation and utilization of historical abandoned industrial and mining lands in Shenmu City, management requirements such as total control of resource utilization, two-way regulation of supply and demand and difference are implemented to standardize the reclamation and utilization behavior of abandoned industrial and mining lands. The waste residue covered by the mining area shall be stripped and cleared, the buildings and structures in the mining area shall be dismantled, and all the waste residue and construction waste shall be transported to the designated accumulation point. Then, as needed, it will be cleared into farmland, forests, grasslands and rivers. Results: The reclamation area of the project covers 42 plots, with a total area of 2146.4 mu. The construction scale of the project is 124.8122hm2. Through the reclamation of abandoned industrial and mining land, 22.1038hm2 of new cultivated land was added in the project area, with a rate of 17.71%. The new grassland area was 32.2119hm2. After reclamation, the land utilization rate of the project increased significantly, reaching 93.38%. It promotes the balance of dynamic indexes of cultivated land in Shenmu City, maintains the dynamic balance of total cultivated land in Shaanxi Province, and improves the production and living conditions of local farmers. The project has great ecological benefit, obvious social benefit and certain economic benefit. The unification of social benefit, economic benefit and ecological benefit is realized, which accords with the goal of industrial waste land reclamation.