Reservoir surface terrestrial vertebrate passing structure and construction method thereof

Abstract

The invention discloses a reservoir surface terrestrial vertebrate passing structure and a construction method thereof. The structure comprises a reservoir periphery guide system, a reservoir bank connecting system, a gallery bridge surface system and a passing result observing system, wherein the reservoir periphery guide system comprises a plant guide, a food guide and an animal excrement guide, which are sequentially arranged on the two banks of a reservoir surface gallery bridge; the reservoir bank connecting system comprises two main cables and support structures arranged at the two ends of the reservoir surface gallery bridge, and the two main cables are connected with anchorages arranged in mountain bed rock through the support structures; and the gallery bridge surface system comprises floating objects, connecting structures and guard structures which are sequentially arranged on the main cables. The construction method comprises the following steps: (1) selecting a site for the reservoir zone surface gallery bridge; (2) constructing the reservoir periphery guide system; (3) constructing the reservoir bank connecting system; (4) constructing the gallery bridge surface system; and (5) setting the passing result observing system. The reservoir surface terrestrial vertebrate passing structure can effectively realize the transverse activities and communication of terrestrial vertebrates on the two banks of the reservoir.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and hydropower engineering environmental protection, and in particular relates to a passage structure for terrestrial vertebrates on the surface of a reservoir and a construction method thereof. Background technique [0002] At present, the construction and operation of water conservancy and hydropower projects on natural rivers have caused the rivers to form a uniform and discontinuous form locally, changing the vertical and horizontal hydrological conditions of the original natural rivers, and affecting the relatively stable ecology formed by the long-term evolution of the original natural rivers. The structure of the environmental system has caused certain adverse effects on the ecological environment of the original river. [0003] Vertically, the barrier of dams in hydropower projects has a great impact on aquatic organisms due to the changes in the upstream and downstream hydrologi...

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Problems solved by technology

[0004] However, in the horizontal direction, the impact of reservoir impoundment and inundation on the terrestrial vertebrates caused by the change of the hydrological regime on both sides of the reservoir area, and the research work on the mitigation measures for this adverse impact, compared with the environmental problems caused by the change of the vertical hydrological regime of the river In terms of impact studies, relatively few studies have been carried out, and there is a lack of effective technical research systems and reliable mitigation measures, especially for rivers with narrow natural channels, shallow water depths, or even seasonal cut-offs. Before the development of water conservancy and hydropower projects, rivers Terrestrial vertebrates on both sides of the river communicate frequently. After the reservoir was impounded and submerged, the water level and width of the river changed dramatically, which directly increased the difficulty of lateral movement of some terrestrial vertebrates on the river surface and reduced the level of terrestrial vertebrates on both sides of the reservoir. The gene exchange and activity space of vertebrates have a non-negligible impact on their normal growth, reproduction and living habits

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