A method for comprehensive development and utilization of lake wetlands based on lake-encircling and river-building technology

Abstract

The invention discloses a method for comprehensively developing and utilizing a lake wetland based on the technology of reclaiming rivers from lakes. The method comprises the following steps of: building a low-lying embankment capable of being used as a highway roadbed in a lake basin between a main water inlet and a main water outlet, dividing and encircling the lake wetland into a plurality of lake sections, and manufacturing two river-in-lake water systems simultaneously; building four gate dams near the main water inlets and the main water outlets of the two river-in-lake water systems, and building a plurality of water gates and a plurality of water pump houses between the rivers in lake and the lake sections; and realizing flow-converging flood discharge, sand discharge and pollution discharge for the rivers in lake, reversible backflow for the double rivers, and clean water flood diversion and impoundment for the lake sections in the precondition of no change on the basic characteristics of the lake wetland by virtue of the water level control with a plurality of permutations and combinations, and formed by the facilities such as the rivers in lake, the lake sections, the gate dams, the water gates and water pumps, and according to water regimen information. With the adoption of the method, the water conservancy benefits and land transport benefits of flood diversion and impoundment, power generation, shipping, reclamation and the like can be obtained, the sediment accumulation of the lake wetland and the accumulation of endogenous pollution can also be greatly reduced, and the life of the lake wetland can be prolonged.

Description

technical field [0001] The invention relates to a method for comprehensive development and utilization of medium and large lake wetlands in humid areas. Background technique [0002] From ancient times to the present, there are only two modes of comprehensive development and utilization of lakes and wetlands in humid areas: one is to enclose lakes to create land (fields); the other is to build sluices or dams at the outlets of lakes to "block" lakes and wetlands . Both models have serious flaws (ie side effects). The former reduces the total amount of available water resources of the lake because it occupies the flood diversion and water storage space of the lake wetland, and the large-scale land reclamation of the lake may lead to flood disasters in the entire basin. The latter will not only cause floods in the entire river basin due to the occupation of the flood diversion space of the lake, but also will definitely lead to rapid silting and eutrophication of the la...

AI Technical Summary

Problems solved by technology

The former reduces the total amount of available water resources of the lake because it occupies the flood diversion and water storage space of the lake wetland, and the large-scale land reclamation of the lake may lead to floods in the entire basin

The latter will not only cause flooding disasters in the entire basin due to the occupation of the flood diversion space of the lake, but also will definitely lead to rapid silting and eutrophication of the lake due to the increase in the amount of sediment deposition and endogenous pollution accumulation in the lake, resulting in the lake Function weakening of wetland ecosystem and early demise of lakes

The loss of life of the lake will inevitably lead to the inability of future generations to enjoy the economic benefits of the lake and wetland ecosystem that should belong to them

This is not in line with the strategic direction of sustainable development of mankind

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