Regulation and stability maintenance method for shallow lake ecosystem

Abstract

The invention relates to a regulation and stability maintenance method for a shallow lake ecosystem. The method comprises the following steps: (1) evaluation technology for the structure and the function of an ecological system: using an ecopath model to obtain key parameters of each functional group in the ecological system of a lake, to learn about different nutrition level distribution, function intensity of each nutrition level and biomass sizes of different functional groups in the lake ecological system, and to analyze and evaluate imbalance factors; (2) multi-nutrient-level biological manipulation technology: (2-1) combined effect of multiple organisms; and (2-2) ecological restoration evaluation; (3) vegetation recovery and wetland reconstruction technology in a shallow water area;(4) repeating the steps (1), (2) and (3); and (5) water quality-water quantity combined regulation: detecting the rainfall of an area where the lake is located, monitoring the reservoir capacity replacement of the lake, acquiring water area characteristics, nutrition imbalance conditions and aquatic organism community function group composition according to a hydrodynamic model, and periodicallydetecting and verifying the physicochemical indexes of a water body.

Description

technical field [0001] The invention relates to the technical field of shallow lake ecosystems, and more specifically, to a method for regulating and stabilizing the shallow lake ecosystem. Background technique [0002] The regulation of lake ecosystems includes the regulation of lake water conservancy (hydrology, hydrodynamics, etc.), physical and chemical environmental factors (nitrogen, phosphorus input, dissolved oxygen in water, etc.), and the regulation of ecosystem food web structures (biodiversity, fish, various Aquatic organisms, etc.), regulation of functions (material cycle, energy flow path), and comprehensive regulation of different combinations or all of these factors. The stable maintenance technology of the lake ecosystem refers to the various inputs and outputs (such as water volume, nutrients, etc.) The structure is more perfect, and the hydrological process, hydrodynamic process, and changes of physical and chemical factors of the water body are coordinat...

AI Technical Summary

Problems solved by technology

[0016] Although various single regulation techniques have been widely used at home and abroad, because the various structures and ecological processes of the ecosystem are not as ideal as these techniques assume, in fact, any ecosystem, regardless of its biological structure or The ecological process has huge complexity, that is, in the past, this single technology must have one or another limitation. Therefore, at present, both at home and abroad tend to combine multiple control technologies to form the so-called comprehensive control technology. Such as the organic integration of water conservancy regulation and ecological regulation, the integration of aquatic plant restoration and biological manipulation technology in ecological regulation, etc.

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