On conception of tree planting in karst rocky desertification area——Methods for tree planting by storing water in fracture made by blasting, excavating hole in bedrock

According to the environmental geology and hydro-geological features in karst region, and combining the successful example that digging and planting trees in the shallow dolomite covered areas in Kaili, Guizhou, the author proposed for the first time the idea of tree planting by storing water in fracture made by blasting, excavating hole in bedrock. That is, loosening the rock mass by blasting firstly, then plant trees in the hole by drilling rock and earth up the trees, and using the blasting cystiform gap space to create local groundwater sump to feed water upwards depending on capillary action. And then, the plant roots can grow downward to absorb groundwater and effective nutrient elements, which enable the trees easily being nourished over a long period of time and growing into useful timber even woods. This method is easy to implement, which can be widely used in karst area and other rocky areas. By doing this, expected results of quickly eco-environmental restoration could be achieved.