Water level-lake capacity relationship-based experimental water level regulation and control method for waiting bird overwintering period lake

Abstract

The invention discloses a water level-lake capacity relationship-based experimental water level regulation and control method for a waiting bird overwintering period lake, and aims to solve the core problem that the influence of the water level change of large and medium-sized lakes in the waiting bird overwintering period on the wetland habitat and the number of waiting bird populations cannot berevealed through an in-situ simulation test at present. The method comprises the steps of: on the basis of statistical analysis on lake long-series day-by-day water level data, determining key hydrological element values, and drafting the lake experimental regulation and control water level of the waiting bird overwintering period; and acquiring lake underwater topographic data by using a depth finder, constructing a lake water level-lake capacity relation curve, and controlling the discharge flow to reach a test water level through a gate. According to the invention, the core problem that the influence of the water level change in the overwintering period of large and medium-sized lake birds on the wetland habitat and the bird population quantity cannot be revealed through an in-situ simulation test is well solved; a simulation test method combining water level regulation and control, remote sensing monitoring and waterfowl monitoring is realized, and an important theoretical research thought is provided for optimal scheduling of water conservancy projects.

Description

technical field [0001] The invention relates to the technical field of water conservancy information, in particular to an experimental water level control method for lakes during the wintering period of migratory birds based on the relationship between water level and lake capacity. Background technique [0002] The water level, occurrence time, duration and rate of change constitute the main elements of the water level dynamic change process, and are one of the main environmental factors that directly or indirectly affect the structure and process of the lake wetland ecosystem. Winter migratory birds are indicator organisms in lake wetland ecosystems, and their population size and temporal and spatial distribution are affected by dynamic changes in water level. If the water level of migratory birds stays too high or too low for a long time during the wintering period, it will affect the ecological hydrological process of lake wetlands and the exposure process of mudflats an...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an experimental water level control method for lakes during the wintering period of migratory birds based on the relationship between water level and lake capacity, which is used to solve the problem that the current in-situ simulation test cannot reveal the impact of water level changes on wetland habitats and migratory bird populations during the wintering period of large and medium-sized lakes. question

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