GIS platform-based plain river network region pollution load calculation method

A technology of pollution load, plain river network, applied in the field of environment

Active Publication Date: 2018-10-30
HOHAI UNIV
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Problems solved by technology

[0005] Purpose of the invention: In order to overcome the shortcomings of existing pollution load estimation methods, th

Method used

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  • GIS platform-based plain river network region pollution load calculation method
  • GIS platform-based plain river network region pollution load calculation method
  • GIS platform-based plain river network region pollution load calculation method

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Embodiment Construction

[0070] The present invention will be further described below in conjunction with the accompanying drawings. Such as figure 1 Shown, the present invention proposes a kind of pollution load calculation method based on the plain river network area of ​​GIS platform as follows:

[0071] (1) Basic structure of calculation method

[0072] The calculation method can be divided into two parts: the calculation of pollution load generation and the calculation of treatment capacity. The former is used to calculate the production of various pollutants from various pollution sources, including 4 calculation modes. The latter calculates the amount of pollutants entering the river from various pollution sources after being treated by each river entry route and each treatment unit, including 6 types of treatment units. The structure diagram of the calculation method is as follows: figure 1 shown.

[0073] (2) Calculation of pollution load generation

[0074] The pollution sources calcul...

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Abstract

The invention discloses a GIS platform-based plain river network region pollution load calculation method. Aiming at the characteristics of plain river network region pollution source generation and migration, outputs and river pollutant loads of various pollution sources and various pollutants under the support of a GIS platform; four calculation modes are utilized to respectively calculate pointsource and surface source pollution loads of seven pollution sources such as urban domestic pollution, rural domestic pollution, urban rainfall runoff pollution, dry land rainfall runoff pollution, rice field rainfall runoff pollution, livestock breeding pollution and aquaculture pollution, and finally the pollution load of a whole plain river network region is determined. The method is not onlycapable of reflecting the pollutant migration characteristics of plain river network regions, but also capable of being popularized and applied on a relatively large spatial-temporal scale, so that the simulation precision in the migration process of pollutants from sources to river networks is improved.

Description

technical field [0001] The invention belongs to the field of environment, and in particular relates to a method for calculating pollution load in plain river network areas based on a GIS platform. Background technique [0002] Pollution load refers to the amount of pollutants entering the receiving water body through various channels, including point source and non-point source pollutants, that is, the amount of pollutants received by surface water bodies. Quantitative research on pollution load is an important basic work for river basin pollution control . For point source pollution in the pollution load, the amount of wastewater and pollutant discharge can be obtained by means of investigation and monitoring; but for non-point source pollution, due to the randomness of its occurrence, the complexity of the mechanism process, the discharge route and the discharge of pollutants Uncertainty and differences in temporal and spatial distribution make it difficult to obtain poll...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F17/18
CPCG06F17/18
Inventor 王鹏王船海华祖林王一丹谢增芳郝少盼
Owner HOHAI UNIV
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