Method for determining underground water exploitation quantity sequence and regional distribution characteristics

A regional distribution and groundwater technology, applied in 2D image generation, image data processing, instruments, etc., can solve the problems of heavy workload and low reliability, reduce workload, improve data accuracy, and achieve major social benefits Effect

Pending Publication Date: 2019-09-20
中水华夏(北京)水利科技研究院有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0004] Aiming at the problems in related technologies, the present invention proposes a method and method for determining the sequence and regional distribution ...
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Method used

[0054] Using statistical yearbook data to determine the sequence of groundwater exploitation and regional distribution characteristics has the characteristics of simplicity and practicality, which not only improves data accuracy, but also re...
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Abstract

The invention discloses a method for determining an underground water exploitation quantityamount sequence and regional distribution characteristics. The method specifically comprises the following steps: S1, collecting historical statistical annual discriminations of administrative regions; s2S2, establishing a relevant element model according to the statistical yearths, and estimating the water consumption of each industry; s3S3, establishing a water consumption separation model, separating from the water consumption of each industry, and estimating the groundwater exploitation amount of each industry; s4S4, establishing an underground water exploitation amount time distribution model to form an underground water monthly exploitation amount sequence; s5S5, utilizing a trend analysis method and a frequency spectrum analysis method to analyze the time-varying characteristics of the underground water exploitation amount of each administrative region; and S6, drawing a regional underground water exploitation intensity change trend contour map by utilizing a trend surface analysis method. The method has the beneficial effects that the underground water exploitation quantity sequence and the regional distribution characteristics are determined by adopting statistical years, the method has the characteristics of simplicity, convenience and practicability, the data accuracy is improved, and the workload is reduced.

Application Domain

Drawing from basic elementsResources

Technology Topic

Time distributionIntensity change +12

Image

  • Method for determining underground water exploitation quantity sequence and regional distribution characteristics

Examples

  • Experimental program(1)

Example Embodiment

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art fall within the protection scope of the present invention.
[0032] Such as figure 1 As shown, a method for determining the sequence of groundwater extraction volume and regional distribution characteristics specifically includes the following steps:
[0033] S1: Collect statistical yearbooks of various administrative regions over the years;
[0034] S2: According to the statistical yearbook, establish relevant element models to estimate water consumption in various industries;
[0035] S3: Establish a water consumption separation model to separate and estimate the groundwater extraction volume of each industry from the water consumption of each industry;
[0036] S4: Establish a time distribution model of groundwater extraction volume to form a monthly groundwater extraction volume sequence;
[0037] S5: Use trend analysis method and frequency spectrum analysis method to analyze the characteristics of the groundwater exploitation in each administrative area over time;
[0038] S6: Use trend surface analysis method to draw regional groundwater exploitation intensity change trend contour map.
[0039] In this embodiment, the statistical yearbooks of each administrative region in step S1 refer to the local socioeconomic statistical yearbooks edited and printed by the statistical departments of governments at all levels.
[0040] In this embodiment, the relevant elements in step S2 refer to elements related to the amount of groundwater extraction in human production activities, including: industrial production elements, agricultural production elements, and urban living elements;
[0041] Estimating the water consumption of various industries is to calculate the domestic water consumption, industrial water consumption, agricultural water consumption and service industry water consumption by multiplying the above-mentioned dynamic related factors by the corresponding water quota.
[0042] In this embodiment, in step S3, separating the groundwater extraction volume of each industry from the water consumption of each industry includes separating the domestic mining groundwater volume from the domestic water volume, separating the industrial production mining groundwater volume from the industrial water volume, and agricultural Separate the amount of groundwater used for agricultural production and the amount of groundwater used for service industries;
[0043] Separating the domestic water consumption from the domestic water consumption is based on the water conservancy statistical yearbooks over the years. Based on the urban and rural domestic water supply, the water conservancy project calculates the ratio coefficient of the average domestic domestic groundwater mining to the domestic water supply over the years, and calculates the domestic water supply based on this coefficient. The amount of groundwater used for water extraction;
[0044] Separate the industrial production and exploitation of groundwater from the industrial water consumption. According to the water conservancy statistical yearbook over the years, the water conservancy project is based on the industrial water supply. The calculated proportion coefficient of the average industrial production and exploitation of groundwater in the industrial water supply over the years is calculated based on this coefficient The amount of groundwater extracted from industrial water;
[0045] The specific steps of separating agricultural production and mining groundwater from agricultural water consumption: First, subtract the sewage irrigation from the calculated agricultural irrigation water consumption to obtain the utilization of groundwater and diversion irrigation water; secondly, according to the water conservancy statistical yearbook over the years, water conservancy projects are Based on the amount of agricultural water supply, calculate the ratio coefficient of the average amount of groundwater extracted from agriculture to the amount of agricultural water supply over the years, and calculate the amount of groundwater extracted from agricultural irrigation according to this coefficient;
[0046] The service industry uses water to extract groundwater, and the proportional coefficient of service industry extracts groundwater is taken as the ratio of residents' daily exploitation of groundwater to domestic water supply, and then uses this coefficient to calculate the service industry's exploitation of groundwater.
[0047] In this embodiment, the monthly groundwater extraction volume sequence in step S4 includes the monthly domestic water and groundwater extraction volume sequence, the industrial water and groundwater monthly extraction volume sequence, the agricultural water and groundwater monthly extraction volume sequence, and the service industry water and groundwater monthly extraction volume sequence;
[0048] Calculation of the monthly production volume of domestic water and groundwater: Determine the monthly domestic water proportional coefficient according to the law of domestic water use, and allocate the annual domestic water mining groundwater volume to each month to obtain the monthly domestic water and groundwater mining volume sequence;
[0049] Calculation of the monthly mining volume sequence of industrial water groundwater: the annual industrial water mining groundwater volume is evenly distributed to each month to obtain the monthly mining volume sequence of industrial water groundwater;
[0050] Calculation of the monthly extraction volume of agricultural water and groundwater: first determine the monthly distribution coefficient of agricultural irrigation groundwater extraction, monthly distribution coefficient of aquaculture groundwater extraction, and monthly distribution coefficient of animal husbandry groundwater extraction, and then use administrative district as the unit to irrigate agriculture The monthly mining volume of groundwater, the monthly mining volume of animal husbandry groundwater and the monthly mining volume of aquaculture groundwater are added together to obtain the monthly mining volume sequence of agricultural water and groundwater;
[0051] Calculation of the monthly extraction volume sequence of service industry water and groundwater: According to the monthly domestic water consumption ratio coefficient, the annual service industry water extraction and groundwater extraction volume is allocated to each month to obtain the service industry water and groundwater monthly extraction volume sequence.
[0052] In this embodiment, in step S5, the trend analysis method is used to perform a linear correlation analysis on the changes in the groundwater extraction volume in each administrative area over time. If the linear slope is greater than 0.05, it is considered as a trend of increasing extraction volume, and if it is less than -0.05, it is considered as extraction volume. Decreasing trend, the slope between -0.05~0.05 is considered to maintain a stable trend; use frequency spectrum analysis method to analyze the sequence of groundwater extraction in each administrative area; through trend and period analysis, the trend equation and period parameters are obtained , Using trend equation and period parameters to calculate the groundwater extraction volume sequence of each township, and compare with the groundwater extraction volume sequence calculated by the relevant factor analysis method.
[0053] In this embodiment, the specific steps of using the trend surface analysis method in step S6 to draw a regional groundwater extraction intensity change trend contour map are: divide the groundwater extraction volume of each administrative area by the area of ​​each administrative area to obtain the groundwater extraction intensity of each administrative area. Taking the center of each administrative district as the coordinate, applying the trend surface analysis method, obtain the regional groundwater exploitation intensity trend contour map.
[0054] The use of statistical yearbook data to determine the groundwater extraction volume sequence and regional distribution characteristics is simple and practical, which not only improves the accuracy of the data, but also reduces the workload. The application of this application improves the accuracy of regional groundwater resources evaluation, the reliability of groundwater dynamic prediction and groundwater scientific planning, and has significant social benefits.
[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention within.

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