Analysis on the Soil and Water Loss and Control Strategies of Ski Ground in the Eastern Mountainous Region of Heilongjiang Province

摘要

The paper proposed the problem of soil and water loss of ski grounds construction and control strategies in the eastern mountainous region of Heilongjiang Province. Methods; It researched on the physical condition and infiltration performance for various major forest types (Pinus koraiensis, Larix gmelinii, and weed trees), and waste grassland in this similar terrain and climatologically area. Results; The results showed that the declined order of maximum water storage was Larch > weed trees > Korean pine > waste grassland; the declined order of non-capillary porosity was Larch, Korean pine, weed trees, waste grassland. The soil infiltration rate in forest land is obviously higher than that in waste grassland. By using runoff plots, determination the runoff generation and sediment generation in 4 runoff plots. Forest land and waste grassland had obviously runoff generation yield and sediment generation yield, this indicated that forest land had better function in water and soil conservation than waste grassland. Conclusion; Based on the research results, proposed the control strategies and important scientific gists of program and conservation of built-up and planted to built ski ground. Heilongjiang Province;ski grounds;soil and water loss;control;strategies