Method for constructing water fluctuation belt vegetations of Three Gorges reservoir by vertical arrangement of arbor-bush-grass

Abstract

The invention discloses a method for constructing water fluctuation belt vegetations of the Three Gorges reservoir by the vertical arrangement of arbor-bush-grass, and relates to a method for constructing reservoir water fluctuation belt vegetations. The method comprises the followings steps of: 1, selecting arbor-bush-grass species which are suitable to be grown in the water fluctuation belts of the Three Gorges reservoir as plant materials; 2, selecting abandoned farmlands or areas where the soil layer is thicker and the terrain is gentle in the water fluctuation belts as a planting base; 3, after the water in the reservoir is receded in spring, cleaning residual vegetations, and flattening the lands; 4, at an altitudinal gradient, from bottom to top, planting annual plants, perennial plants, bushes and arbors in sequence; and 5, managing the vegetations according to the common method. In the method, the vegetations are planted on the suitable areas in the water fluctuation belts, so that the soil corrosion is controlled, the landscape is improved, and the ecological benefits of the water fluctuation belts are improved; the large-scaled popularization of the method is convenient; and the method is suitable to be used for not only constructing the vegetations on the water fluctuation belts of the Three Gorges reservoir, but also beautifying the landscape and re-constructing the vegetations in the reservoir water fluctuation belts in regions where all or a part of 12 species are suitable to be grown.

Description

technical field [0001] The invention relates to a method for constructing vegetation in a reservoir's deflating zone, in particular to a method for constructing vegetation in a three-gorge reservoir's deflating zone by using vertical arrangement of trees, shrubs and grasses. Background technique [0002] Vegetation construction in the depletion zone of reservoirs has always been a worldwide problem. Many reservoirs in the United States suffer from severe swell zone erosion, caused in part by wind waves, boat waves, and water level fluctuations, which negatively impact aquatic and riparian habitats, as well as other factors, such as water quality. If erosion is severe, vegetation is difficult to form and maintain, and fish and wildlife habitat is somewhat restricted to certain areas. The depletion zone usually extends for several kilometers and consists of mudflats containing frags and debris. [0003] Most reservoir depletion zones require active management measures to mit...

AI Technical Summary

Problems solved by technology

[0016] ① The area of ​​the rising and falling zone is large (300km 2 ), the fluctuation and drop difference can reach up to 30m;

[0018] ③Because of shipping and wind, the waves in many areas are very big

[0019] Therefore, the existing vegetation construction techniques are not suitable for the Three Gorges Reservoir's depletion zone, and it is necessary to explore new technical methods to construct the vegetation in the depletion zone in this area.

Images