Method for early warning analysis of eutrophication of planned artificial water body

Abstract

The invention discloses a method for early warning analysis of eutrophication of a planned artificial water body. The method comprises the steps that according to data corresponding to a planning scheme of the water body, a three-dimensional model of the planned artificial water body is established, wherein the three-dimensional model of the planned artificial water body at least comprises the planned artificial water body and surrounding buildings; according to the three-dimensional model of the planned artificial water body, the planned artificial water body is analyzed through the ecological simulation technology, so that at least one analysis result of the mobility, the water changing period, source algae seeds, planned water depth, the water body surface wind field, illumination and temperature of the planned artificial water body is obtained; according to at least one ecological simulation analysis result, the risk of eutrophication of the planned artificial water body is assessed. In this way, the risk of eutrophication of the planned artificial water body can be assessed during city planning and design, and therefore a basis is provided for prevention and control of eutrophication of the planned artificial water body.

Description

technical field [0001] The invention relates to the technical field of urban planning and design, in particular to an early warning analysis method for eutrophication of planned artificial water bodies. Background technique [0002] With the development of China's economy and the acceleration of urbanization, in the context of continuous expansion of land use, more and more attention has been paid to the ecological environment. In most areas, in the process of urban planning, artificial lakes or small tributaries are planned and excavated for the sake of building an ecological security pattern and improving regional landscapes. Artificial lakes or small tributaries generally have small areas, small water storage capacity, poor fluidity of water bodies, and most of them are in a relatively static state. These characteristics cause small artificial lakes and relatively static tributaries to appear within two or three years after construction. Serious eutrophication problem. ...

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Problems solved by technology

The above-mentioned technical means for water eutrophication research are basically aimed at the existing lakes, reservoirs and bays, and the parameter requirements are too detailed, such as the actual content of nitrogen, phosphorus and chlorophyll-a, the extinction coefficient of water body, and the surface reflectance of long-wave radiation. etc. It is difficult to implement such data at the level of planning and design

[0004] The introduction of artificial water bodies in the process of urban planning has become a normal design method. The degree of eutrophication after the completion of artificial water bodies is a matter of great concern to environmentalists. However, it is currently impossible to plan for such water bodies that are only planned but not in the current state. The scope and degree of eutrophication can only be predicted at the design stage, based on the current situation of the surrounding area and the planning of land use types, the preliminary estimation of point source and non-point source pollution can be made, and relevant planning and control measures can be formulated for pollution interception

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