Reservoir drawdown area slope protective structure and vegetation restoration method for reservoir drawdown area slope

Abstract

The application relates to the field of water and soil conservation, and particularly to a reservoir drawdown area slope protective structure and a vegetation restoration method for a reservoir drawdown area slope. The reservoir drawdown area slope protective structure comprises waveproof posts and phytogenic rolls, wherein arbor trunks can penetrate through holes in the waveproof posts, the waveproof posts are embedded on the reservoir drawdown area slope, wave-dissipating projections are arranged on upstream faces at the upper ends of the waveproof posts respectively, herbaceous plants are preset on the phytogenic rolls, the phytogenic rolls can be fixed to the reservoir drawdown through fasteners, at least one phytogenic roll is arranged between every two adjacent waveproof posts in thedirection from the bottom to the top of the reservoir drawdown area slop. The reservoir drawdown area slope protective structure has the advantages of low ground-breaking work quantity and small disturbance to the slope surface, and can improve erosion resistance capacity of soil; besides, on the basis of effectively restoring vegetation in the drawndown area, disturbance to soil caused by the conventional soil preparation method in tree and grass planting in the drawdown area can be reduced greatly, and loss of water and soil can be prevented effectively while water and fertilizer conservation can be achieved.

Description

technical field [0001] The application relates to the field of water and soil conservation, in particular to a slope protection structure in a water-fluctuating zone of a reservoir and a method for restoring vegetation on a slope in a water-fluctuating zone of a reservoir. Background technique [0002] Affected by the water regulation rhythm of the large reservoir, the water-fluctuating zone of a large reservoir is subject to periodic high-pressure flooding and high-amplitude dry-wet alternation, and its vegetation, soil and other underlying surfaces undergo dramatic changes in a short period of time, and the special hydrological environment induces strong soil erosion , Vegetation succession disappears, losing its important ecological service function. [0003] The water-fluctuating zone of the reservoir suffers from two special soil erosion processes: surface runoff erosion along the slope and wave erosion along the slope, and the erosion is severe. The traditional high-s...

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Problems solved by technology

[0004] However, the existing forms of ecological revetment generally have defects such as high engineering cost, high disturbance intensity, and poor ecological landscape effect.

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