Abstract
The ecological greening technology of the bare rock area of the arbor governance be-longs to the field of ecological environment restoration, selection of suitable arbors for vegetation restoration in bare rock area, vegetation recovery is the primary approach to governance the ecological environment of bare rock area. The reconstruction of bare rock area arbor-shrub-grass ecosystems is a global environmental science problem. Paying attention to Geological conditions with rich rock fissures and abundant groundwater in these fissures, following the idea to reconstruct ecosystem from arbor to shrub and grass and the principle one tree in a baseplate, authors develop a baseplate technique for tree planting in bare rock area. The baseplate includes the parent body, the root, and the cover to prevent evaporation. Especially, there are filled in nutritional soil for the parent body and the root, and the composition of nutritional soil are selected by test in laboratory, while optimal mix ratio of the composition is obtained. Then, application method in field is put forward. The technique can guarantee survival at early stage and growth in the later for tree planting in the baseplate. In particular, the root provides a good channel to guide tree roots into fissure rock and absorb groundwater in rock. Test in field shows that the baseplate technique has strong practicality in vegetation recovery of bare rock area. Test in field shows that the baseplate technique has strong practicality in vegetation recovery of bare rock area in the world.
Highlights
The vegetation restoration of bare rock area is one of the difficult problems in the engineering field
The ecological greening technology of the bare rock area of the arbor governance belongs to the field of ecological environment restoration, selection of suitable arbors for vegetation restoration in bare rock area, vegetation recovery is the primary approach to governance the ecological environment of bare rock area
There are filled in nutritional soil for the parent body and the root, and the composition of nutritional soil are selected by test in laboratory, while optimal mix ratio of the composition is obtained
Summary
The vegetation restoration of bare rock area is one of the difficult problems in the engineering field. The natural factors that causing rocky desertification are numerous, the slow process of carbonate rock formation and high frequency extreme heavy rainfall is easy to produce soil and water loss. Human activities, such as excessive deforestation, excessive land reclamation, over grazing, large-scale road and urban infrastructure construction, Chinese Academy of Sciences, respectively submit a report to the State Council, proposed to promote the southwest Karst area of the comprehensive management of rocky desertification two times in 1994 and 2003 [2] [3]. From the component composition of baseplate, nutrient soil, baseplate pit excavation artificial cost, each baseplate cost is about 60 yuan
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