Dagangshan Hydropower Temporary Land Reclamation Balance Of Water And Land Resources

Strengthen, the breadth and depth of promoting land reclamation work, increase the production rate of land to be reclaimed, thereby increasing the relative share of land per capita, it is to implement policies for sustainable development of land resources and effective measures to ease the contradiction between people. Land Reclamation of land and water resources balance analysis is necessary to analyze the current situation of soil and water resources and utilization potential reclamation area, provide basic information for land reclamation design, but also to fully take into account the changes in land use structure arising after the reclamation of land and water resources demand the amount of change, a reasonable allocation of water and land resources use reclamation area, improve the quality of reclaimed land, and to improve the productivity of land reclamation, to ease the contradiction between people, to achieve sustainable development goals.China’s large hydropower. hydropower construction process will inevitably damage the temporary occupation of large areas of land, it should be destroyed land reclamation, reclamation rate guarantee. This article will Dagangshan Hydropower temporary land as research subjects, enrich its temporary land use type and type of use, with a typical significanceBased on the literature review and data collection on water resources from science, hydraulics and soil science and other multi-disciplinary perspective, first of all, before and after the study area reclamation of land use structure, the construition activities on land and water resources of disturbances and damage analysis of the situation; and water resources in the study area balance analysis and soil resources were stratified on the basis of balance analysis, including the establishment of land and water resources balance analysis system, built using the system for the supply of land and water resources in the study area and demand were estimates, based on its estimates of soil and water resources balance analysis, the corresponding measures and suggestions Reclamation land and water resources in order to achieve equilibrium; and finally, on the basis of the study area on the analysis of soil and water resources, land and water resources will balance supply and demand analysis achievements A brief development.Through the study of soil and water resources balance Dagangshan Hydropower Station, the following major conclusions:(1) Temporary land life Dagangshan hydropower water demand from groundwater, water supply to meet the size of the establishment; ecological water demand from river runoff, whether or not flood runoff volume sufficient supply; the main source of agricultural water demand of precipitation effective atmospheric precipitation and surface runoff, atmospheric precipitation is insufficient to meet the water demand effective land unit has six. namely:poaching residue field B section, peach dam residue field, reinforced wood processing plants, integrated warehouse, loading wheel assembly field, center substation, plant gravel system, river currents contractor living area. After laying storm water runoff accumulated savings measures, there is still a shortage of temporary land unit 4, respectively poaching residue field B section, integrated warehouse, loading wheel assembly field, center substation, steel timber processing plants, plant Aggregate System, to be appropriate after adjusting the reclaimed land use structure.(2) The required reclamation topsoil into the topsoil and sub-surface soil, and in the system introduced innovative concepts topsoil stripping potential value. Temporary land Dagangshan Hydropower temporary land required foreign soil unit has nine, namely:A portion of poaching residue field; poaching residue field B section; peach dam residue field; 4# water stations; steel wood processing; integrated warehouse, mounted wheel assembly field, center substation; auto repair field; gravel plant systems; depot; Current River contractor living area. Foreign soil can all from the permanent covering.(3) land reclamation station Dagangshan temporary land use and land resources amount equal to the actual release provisional release potential value of land and land resources, soil resources permanently covering an amount equal to the actual release new soil volume, respectively topsoil 102866.30m3, topsoil 21539.05 m3 subsurface soil 81327.25m3.