CN101963607A - Watershed wetland water environment state and public satisfaction degree evaluation method - Google Patents
Watershed wetland water environment state and public satisfaction degree evaluation method Download PDFInfo
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Abstract
The invention provides a watershed wetland water environment state and public satisfaction degree evaluation method, which comprises the following steps: 1) selecting a proper evaluation factor and computing a corresponding weight; 2) computing a function relationship among a wetland water environment comprehensive influence index, a wet land nutrition index and a water environmental nutrition comprehensive influence index; 3) grading the wetland water environment states and public satisfaction degrees; and 4) implementing the method concretely: evaluating the wetland water environment states and public wetland water environment state satisfaction degrees of all watersheds such as lakes, urban rivers and reservoirs. Compared with the prior art, the method has the advantages that: a psychological simulation-reaction relationship theory is introduced; and the watershed wetland water environment states and public environment state satisfaction degrees can be evaluated objectively and quantitatively.
Description
Technical Field
The invention relates to a watershed wetland water environment state and public satisfaction evaluation method, in particular to a method for objectively and quantitatively evaluating the watershed wetland water environment state and the public satisfaction by comprehensively considering a series of factors such as nutrient substances, planktonic biomass, water quality, public reaction and the like.
Background
The problem of water environment safety caused by nutrient salt pollution in the watershed wetland in China is increasingly prominent, and the watershed wetland in China becomes one of the most serious countries in the world. The outbreak of algal bloom can cause water body anoxia, fish death, peculiar smell and algal toxin, and the like, further influence wetland water ecological functions, cause serious influence on normal production and life of people, and even influence the ecological safety of a basin. The watershed wetland water environment condition relates to a plurality of environment elements and has complex interaction, and the control and management are closely related to the expected value of the public to the water environment condition, but the watershed wetland water environment condition and public satisfaction evaluation technology is blank at present, an objective quantitative evaluation method for the watershed wetland water environment condition and the public satisfaction is particularly required to be established, and theoretical and technical support is provided for watershed wetland water environment early warning, ecological recovery evaluation and water environment efficient management.
At present, most of evaluations aiming at the watershed wetland water environment state mostly stay at the aspect of nutrition state evaluation, a great deal of researches are carried out from the aspects of wetland eutrophication evaluation mechanism research, model application and the like, and various evaluation methods based on mathematical methods are provided, but all have application limitations: if the analytic hierarchy process is a method combining orientation and quantification, the characteristics of decomposition, judgment and synthesis of evaluation decision thinking are embodied, but the constructed judgment matrix may not have consistency, and the evaluation result excessively depends on the preference and subjective judgment of a decision maker; although the fuzzy evaluation method, the gray clustering evaluation method, the set pair analysis method and the matter element analysis method consider the characteristics of the system such as fuzziness, gray color, incompatibility and the like in the evaluation process, the membership functions, whitening functions, correlation functions, relation expression and the like of each evaluation index to each evaluation grade need to be constructed respectively, and the design forms of the functions or expressions are different from person to person, so that the evaluation result is distorted and the resolution is not high; artificial neural network evaluation typically requires a large amount of data for network training.
Based on the above technical background, it is necessary to provide a new evaluation method, which can integrate a series of factors such as nutrient substance-planktonic biomass-water quality-public reaction, and so on, to objectively and quantitatively evaluate the water environment state of the wetland in the watershed and the public satisfaction degree.
Disclosure of Invention
The invention aims to: the method can comprehensively integrate a series of factors such as nutrient substances, planktonic biomass, water quality, public reaction and the like, and objectively and quantitatively evaluate the watershed wetland water environment state and the public satisfaction through the wetland water environment comprehensive influence index from the viewpoint of the wetland water environment state comprehensive influence.
The purpose of the invention is realized by the following technical scheme:
the watershed wetland water environment state and public satisfaction evaluation method comprises the following steps:
1) selecting a proper evaluation factor and calculating corresponding weight;
2) a calculation step: wetland water environment comprehensive influence index KiThe value, the wetland nutrition index and the wetland water environment comprehensive influence index are in a functional relationship;
3) dividing the satisfaction degree grade of the water environment state of the public convection basin wetland;
4) the method comprises the following specific implementation steps: and evaluating the actual wetland water environment state and the public satisfaction degree.
Wherein, the selection of the proper evaluation factor in the step 1) refers to the selection of the indexes including transparency (SD) and permanganate index (COD) on the basis of the comprehensive consideration of nutrient-planktonic biomass-water quality index of eutrophication evaluationMn) Total Nitrogen (TN), Total Phosphorus (TP) and chlorophyll a (ch 1-a).
The calculation of the corresponding weight refers to the calculation of the weight of the five evaluation factors by applying an entropy weight coefficient method.
Step 2) the wetland water environment comprehensive influence index KiThe value calculation method specifically makes the following three assumptions on the basis of the Weber-Fisher law: (1) the external environment stimulation amount is taken as the concentration of a certain pollutant in the watershed wetland or the water environment index; (2) the reaction quantity generated by the human body is regarded as the influence degree of the pollutant or the water environment index on the human body; (3) the weber constant a is considered to be a weight of a certain contaminant or indicator and is considered to be determined by the nature of that contaminant or indicator of the aqueous environment, and is constant for the same contaminant or indicator. And calculating the wetland water environment comprehensive influence index K according to the formulas 1 and 2iThe value is obtained.
Equation 1: kij＝aij 1g(cij+1)
Equation 2: <math><mrow><msub><mi>K</mi><mi>i</mi></msub><mo>=</mo><munderover><mi>Σ</mi><mrow><mi>j</mi><mo>=</mo><mn>1</mn></mrow><mi>p</mi></munderover><msub><mi>K</mi><mi>ij</mi></msub></mrow></math>
wherein, Kij: the index is the influence index of the pollution of a monitoring point i or the water environment index j on the human body;
cij: monitoring a standard value of the monitoring concentration of the pollution or water environment index j at a monitoring point i; c. CijThe purpose of +1 is to make 1g (c)ij+1)＞0，
The evaluation result is not influenced through the mathematic proof;
Ki: monitoring a comprehensive influence index of the pollution or water environment index of a point i on a human body;
p: and (4) the number of indexes of the polluted or water environment, wherein P is 5.
The method for determining the functional relationship between the wetland nutrition index and the wetland water environment comprehensive influence index is characterized in that lake nutrition state evaluation standard data are comprehensively planned according to national water resources, standardized according to a formula 3, and combined with the wetland water environment comprehensive influence index K of 3 and 4iValue calculating method for calculating K corresponding to index value of water environment of each nutritional indexiAnd expressing the relationship between the wetland nutrition index and the wetland water environment comprehensive influence index by establishing a fitting curve (see the attached drawing).
Equation 3: c. Cij＝c′ij/Sj
c′ij: monitoring original monitoring data of pollutants or water environment indexes j at monitoring points i;
cij: monitoring concentration standard values of pollutants or water environment indexes j at monitoring points i;
Sj: the highest value of the pollutant or water environment index j in the classification standard.
The step 3) of dividing the satisfaction degree grade of the public on the wetland water environment state is to comprehensively consider the comprehensive influence index K of the wetland water environmentiRange of change, KiThe corresponding relation between the value change rate and the nutritional index divides the public satisfaction degree on the wetland water environment state into 4 grades: the specific division of the good, medium, poor and very poor is shown in Table 1.
TABLE 1 moisture environment state public satisfaction degree grade division table
Note: kiRate of change*Represents KiThe index rate of change of the value with the nutritional state is obtained from the slope of the function in the figure.
Compared with the comprehensive nutritional state index method in the prior art, the evaluation method based on the Weber-Fisher's law can objectively and quantitatively evaluate the wetland water environment state of the watershed from the viewpoint of the comprehensive influence of the wetland water environment state on the premise of not increasing evaluation factors and data calculation procedures, introduces public participation concepts while evaluating the water environment, and simultaneously evaluates the satisfaction degree of the public on the water environment state of an evaluation object. The main beneficial effects can be summarized as follows:
(1) objective and quantitative analysis
The method is based on the research of the objective fact that the change of the wetland water environment and the water environment influences the 'people', and tries to pass through the wetland water environment and the environment causeThe change of son quantitatively and objectively reflects the influence on human body, and seeks to establish a theoretical model by using Ki、KiThe rate of change and the nutritional grade together quantitatively describe the satisfaction of the public.
(2) All-round
The method comprehensively considers water environment indexes such as nutrient substances, planktonic biomass, water quality and the like when evaluating the comprehensive influence of the wetland water environment, establishes a corresponding relation between the water environment indexes and the wetland nutritional index, and finally uses the white lake. Urban water systems and reservoirs are evaluated as cases (examples 1, 2 and 3 of the invention), and the reliability of the method is verified. Meanwhile, public participation concepts are introduced while water environment evaluation is carried out, and the satisfaction degree of the public on the water environment state of an evaluation object is evaluated.
(3) Has wide application
Can be widely applied to water environment evaluation of various types of wetlands (such as lakes, urban rivers, lakes, reservoirs and the like) in watersheds, in particular to water environment evaluation of various types of wetlands
The water environment water pollution is serious, the eutrophication state is high, the lake is urgently needed to be recovered, and the dynamic process of the lake ecological recovery can be quantitatively monitored and evaluated.
Drawings
The attached drawing is KiDividing a graph of the relation between the value and the wetland nutrition index and the public satisfaction degree;
Detailed Description
The technical solutions and effects of the present invention are further described in detail below by way of examples, but the scope of the present invention is not limited to the examples.
Example 1 evaluation of the Environment and public satisfaction of the white lake Water Using the evaluation method of the present invention
1. Obtaining evaluation factor actual monitoring data
Selecting 8 national control points of the white lake, and respectively sampling and measuring the selected transparency (SD) and the permanganate index (COD)Mn) Total Nitrogen (TN), Total Phosphorus (TP), chlorophyll a (ch1-a) concentration values.
2. Calculating the weight of each evaluation factor
The weights of the five evaluation factors were calculated in three steps:
(1) and (6) standardizing data. The m evaluation indexes and the n evaluation objects form an original data matrix of
Normalizing the matrix to obtain R ═ R (R)ij)m×n
(2) And calculating the entropy. In an evaluation problem with m evaluation objects and n evaluation indexes, the entropy of the ith index is:
(3) and calculating a weight coefficient of the evaluation index. After the entropy value of the ith index is determined, an entropy weight coefficient of the ith index can be calculated:
3. Calculating the comprehensive influence index K of the water environment at different sampling points of the white lakeiThe rate of change of the value and its relative nutritional index change.
The following three assumptions are made on the basis of Weber-Fisher's law: (1) the external environment stimulation amount is taken as the concentration of a certain pollutant in the wetland or the water environment index; (2) the reaction quantity generated by the human body is regarded as the influence degree of the pollutant or the water environment index on the human body; (3) the weber constant a is considered to be a weight of a certain contaminant or indicator and is considered to be determined by the nature of that contaminant or indicator of the aqueous environment, and is constant for the same contaminant or indicator. And calculating the wetland water environment nutrition comprehensive influence index K according to the formulas 1 and 2iThe value is obtained.
Equation 1: kij＝aij1g(cij+1)
Equation 2: <math><mrow><msub><mi>K</mi><mi>i</mi></msub><mo>=</mo><munderover><mi>Σ</mi><mrow><mi>j</mi><mo>=</mo><mn>1</mn></mrow><mi>p</mi></munderover><msub><mi>K</mi><mi>ij</mi></msub></mrow></math>
wherein, Kij: the index is the influence index of the pollution of a monitoring point i or the water environment index j on the human body;
cij: monitoring a standard value of the monitoring concentration of the pollution or water environment index j at a monitoring point i; c. CijThe purpose of +1 is to make 1g (c)ij+1) > 0, and the evaluation result is not influenced through mathematical demonstration;
Ki: monitoring a comprehensive influence index of the pollution or water environment index of a point i on a human body;
p: and (4) the number of indexes of the polluted or water environment, wherein P is 5.
The method for determining the relation function between the wetland nutrition index and the wetland water environment comprehensive influence index is to comprehensively plan the evaluation standard data of the lake nutrition state according to the national water resources, standardize the evaluation standard data according to a formula 3 and combine the K and the K of the 3 and 4iAnd the value calculation method is used for calculating the wetland water environment comprehensive influence index corresponding to each nutrition index water environment index value.
Equation 3: c. Cij＝c′ij/Sj
c′ij: monitoring original monitoring data of pollutants or water environment indexes j at monitoring points i;
cij: monitoring concentration standard values of pollutants or water environment indexes j at monitoring points i;
Sj: the highest value of the pollutant or water environment index j in the classification standard.
4. And judging the water environment state of the white lake and the public satisfaction degree.
According to the comprehensive influence index K of the water environment at different monitoring points of the white lakeiThe value and the change rate of the value along with the nutrient index are compared with a public satisfaction degree grade division table (table 1) of the wetland water environment state to determine the water environment state and the public satisfaction degree, and the result is compared with the result evaluated by a comprehensive nutrient index method in the prior art and is shown in table 2.
TABLE 1 moisture environment state public satisfaction degree grade division table
Note: kiRate of change*Represents KiThe index rate of change of the value with the nutritional state is obtained from the slope of the function in the figure.
TABLE 2 comparison of the results of the comprehensive nutritional status index method with the method of the present invention for determining the state of the white lake water environment
Example 2. evaluation of urban Water System Water Environment Condition and public satisfaction with the evaluation method of the present invention
1. Obtaining evaluation factor actual monitoring data
Selecting 4 monitoring sections of a Beijing urban Beijing ring water system along the way, respectively collecting water samples to determine the selected transparency (SD) and the permanganate index (COD)Mn) Total Nitrogen (TN), Total Phosphorus (TP), chlorophyll a (ch1-a) concentration values.
2. Calculating the weight of each evaluation factor
The weights of the five evaluation factors were calculated in three steps:
(1) and (6) standardizing data. The m evaluation indexes and the n evaluation objects form an original data matrix of
Normalizing the matrix to obtain R ═ R (R)ij)m×n
(2) And calculating the entropy. In an evaluation problem with m evaluation objects and n evaluation indexes, the entropy of the ith index is:
(3) and calculating a weight coefficient of the evaluation index. After the entropy value of the ith index is determined, an entropy weight coefficient of the ith index can be calculated:
3. Calculating the comprehensive influence index K of the water environment of different monitoring sections of the northern water systemiThe rate of change of the value and its relative nutritional index change.
The following three assumptions are made on the basis of Weber-Fisher's law: (1) the external environment stimulation amount is taken as the concentration of a certain pollutant in the wetland or the water environment index; (2) the reaction quantity generated by the human body is regarded as the influence degree of the pollutant or the water environment index on the human body; (3) the weber constant a is considered to be a weight of a certain contaminant or indicator and is considered to be determined by the nature of that contaminant or indicator of the aqueous environment, and is constant for the same contaminant or indicator. And calculating the wetland water environment nutrition comprehensive influence index K according to the formulas 1 and 2iThe value is obtained.
Equation 1: kij＝aij1g(cij+1)
Equation 2: <math><mrow><msub><mi>K</mi><mi>i</mi></msub><mo>=</mo><munderover><mi>Σ</mi><mrow><mi>j</mi><mo>=</mo><mn>1</mn></mrow><mi>p</mi></munderover><msub><mi>K</mi><mi>ij</mi></msub></mrow></math>
wherein, Kij: the index is the influence index of the pollution of a monitoring point i or the water environment index j on the human body;
cij: monitoring a standard value of the monitoring concentration of the pollution or water environment index j at a monitoring point i; c. CijThe purpose of +1 is to make 1g (c)ij+1) > 0, and the evaluation result is not influenced through mathematical demonstration;
Ki: monitoring a comprehensive influence index of the pollution or water environment index of a point i on a human body;
p: and (4) the number of indexes of the polluted or water environment, wherein P is 5.
The method for determining the relation function between the urban river nutrition index and the wetland water environment comprehensive influence index is to comprehensively plan the evaluation standard data of the lake nutrition state according to the national water resources, standardize the evaluation standard data according to a formula 3 and combine the K and the K of the 3 and 4iAnd the value calculation method is used for calculating the wetland water environment comprehensive influence index corresponding to each nutrition index water environment index value.
Equation 3: c. Cij＝c′ij/Sj
c′ij: monitoring original monitoring data of pollutants or water environment indexes j at monitoring points i;
cij: monitoring concentration standard values of pollutants or water environment indexes j at monitoring points i;
Sj: the highest value of the pollutant or water environment index j in the classification standard.
4. And judging the water environment states of different monitoring sections of the northern water system and the public satisfaction degree.
According to different monitoring sections of the northern ring water system, the water environment comprehensive influence index KiThe value and the change rate of the value along with the nutrient index are compared with a public satisfaction degree grade division table (table 1) of the wetland water environment state to determine the water environment state and the public satisfaction degree, and the result is compared with the result evaluated by a comprehensive nutrient index method in the prior art and is shown in table 3.
Table 3 comparison of comprehensive nutritional state index method and water environment state judgment result of northern ring water system by using method of the invention
Example 3. evaluation method of the invention is utilized to evaluate the water environment condition of key reservoir in the river basin and the public satisfaction degree
1. Obtaining evaluation factor actual monitoring data
Selecting four key reservoirs in the Haihe river basin, namely a dense cloud reservoir, a hall reservoir, a Panjiakou reservoir and a Yue-forming reservoir, and respectively collecting water samplesThe selected transparency (SD) and permanganate index (COD) are measuredMn) Total Nitrogen (TN), Total Phosphorus (TP), chlorophyll a (ch1-a) concentration values.
2. Calculating the weight of each evaluation factor
The weights of the five evaluation factors were calculated in three steps:
(1) and (6) standardizing data. The m evaluation indexes and the n evaluation objects form an original data matrix of
Normalizing the matrix to obtain R ═ R (R)ij)m×n
(2) And calculating the entropy. In an evaluation problem with m evaluation objects and n evaluation indexes, the entropy of the ith index is:
(3) and calculating a weight coefficient of the evaluation index. After the entropy value of the ith index is determined, an entropy weight coefficient of the ith index can be calculated:
3. Calculating comprehensive influence index K of four major reservoir water environments in sea river basiniThe rate of change of the value and its relative nutritional index change.
The following three assumptions are made on the basis of Weber-Fisher's law: (1) the external environment stimulation quantity is regarded as the concentration of a certain pollutant in the wetland or the water environment index(ii) a (2) The reaction quantity generated by the human body is regarded as the influence degree of the pollutant or the water environment index on the human body; (3) the weber constant a is considered to be a weight of a certain contaminant or indicator and is considered to be determined by the nature of that contaminant or indicator of the aqueous environment, and is constant for the same contaminant or indicator. And calculating the wetland water environment nutrition comprehensive influence index K according to the formulas 1 and 2iThe value is obtained.
Equation 1: kij＝aij1g(cij+1)
Equation 2: <math><mrow><msub><mi>K</mi><mi>i</mi></msub><mo>=</mo><munderover><mi>Σ</mi><mrow><mi>j</mi><mo>=</mo><mn>1</mn></mrow><mi>p</mi></munderover><msub><mi>K</mi><mi>ij</mi></msub></mrow></math>
wherein, Kij: the index is the influence index of the pollution of a monitoring point i or the water environment index j on the human body;
cij: monitoring a standard value of the monitoring concentration of the pollution or water environment index j at a monitoring point i; c. CijThe purpose of +1 is to make 1g (c)ij+1) > 0, and the evaluation result is not influenced through mathematical demonstration;
Ki: monitoring a comprehensive influence index of the pollution or water environment index of a point i on a human body;
p: and (4) the number of indexes of the polluted or water environment, wherein P is 5.
The method for determining the relation function between the reservoir nutrition index and the wetland water environment comprehensive influence index is to comprehensively plan the evaluation standard data of the lake nutrition state according to the national water resources, standardize the evaluation standard data according to a formula 3 and combine the K and the K of the 3 and 4iAnd the value calculation method is used for calculating the wetland water environment comprehensive influence index corresponding to each nutrition index water environment index value.
Equation 3: c. Cij＝c′ij/Sj
c′ij: monitoring point i pollutant or water environment index jOriginal monitoring data;
cij: monitoring concentration standard values of pollutants or water environment indexes j at monitoring points i;
Sj: the highest value of the pollutant or water environment index j in the classification standard.
4. And judging the water environment state of four key reservoirs in the river basin and the public satisfaction degree.
According to the comprehensive influence index K of four key reservoir water environments in the sea river basiniThe value and the change rate of the value along with the nutrient index are compared with a public satisfaction degree grade division table (table 1) of the wetland water environment state to determine the water environment state and the public satisfaction degree, and the result is compared with the result evaluated by a comprehensive nutrient index method in the prior art and is shown in table 4.
TABLE 4 comparison of the comprehensive nutrient status index method with the results of the method of the present invention for determining the water environment status of different reservoirs
As can be seen from tables 2, 3 and 4, the index of the wetland nutrition state obtained by the method is slightly larger than the value of the comprehensive nutrition index method, but basically coincides with the evaluation result of the grade of the nutrition state obtained by the comprehensive nutrition state index method, but the method has simple and easy determination process, good repeatability, is more suitable for wide application, and can objectively evaluate the public satisfaction degree of the nutrition state.
In conclusion, the method is novel according to the principle, the evaluation process is simple and easy to implement, management service is facilitated, the public satisfaction degree of the nutrition states of the lakes and the similar water bodies can be objectively evaluated, and the method is worthy of popularization and application in practice.
Claims (6)
1. A watershed wetland water environment state and public satisfaction evaluation method comprises the following steps:
1) selecting a proper evaluation factor and calculating corresponding weight;
2) a calculation step: wetland water environment comprehensive influence index KiThe value, the wetland nutrition index and the wetland water environment comprehensive influence index are in a functional relationship;
3) dividing the water environment state of the wetland and the public satisfaction degree grade of the public;
4) according to the watershed wetland obtained on the basis of the evaluation factor measured valueWater environment comprehensive influence index KiAnd evaluating the watershed wetland water environment state by the functional relation between the value and the wetland nutrition index and the wetland water environment comprehensive influence index.
5) And determining the public satisfaction degree by contrasting a public rating division table for the satisfaction degree of the wetland water environment state.
2. The watershed wetland water environment state and public satisfaction evaluation method of claim 1, characterized by comprising the following steps: the selection of the appropriate evaluation factor in the step 1) refers to the selection of the indexes including transparency (SD) and permanganate index (COD) on the nutrient-planktonic biomass-water quality index comprehensively considering wetland water environment evaluationMn) Total Nitrogen (TN), Total Phosphorus (TP) and chlorophyll a (chl-a).
3. The watershed wetland water environment state and public satisfaction evaluation method of claim 1, characterized by comprising the following steps: the step 1) of calculating the corresponding weight refers to calculating the weight of the five evaluation factors by applying an entropy weight coefficient method.
4. The watershed wetland water environment state and public satisfaction evaluation method of claim 1, characterized by comprising the following steps: step 2) the wetland water environment comprehensive influence index KiThe value calculation adopts a method that the following three assumptions are made on the basis of the Weber-Fisher law: (1) the external environment stimulation amount is taken as the concentration of a certain pollutant of the wetland or the water environment index; (2) the reaction quantity generated by the human body is regarded as the influence degree of the pollutant or the water environment index on the human body; (3) the weber constant a is considered to be a weight of a certain contaminant or indicator and is considered to be determined by the nature of that contaminant or indicator of the aqueous environment, and is constant for the same contaminant or indicator. And calculating the wetland water environment comprehensive influence index K according to the formulas 1 and 2iThe value is obtained.
Equation 1: kij＝aijlg(cij+1)
Equation 2: <math><mrow><msub><mi>K</mi><mi>i</mi></msub><mo>=</mo><munderover><mi>Σ</mi><mrow><mi>i</mi><mo>=</mo><mn>1</mn></mrow><mi>p</mi></munderover><msub><mi>K</mi><mi>ij</mi></msub></mrow></math>
wherein, Kij: the index is the influence index of the pollution of a monitoring point i or the water environment index j on the human body;
cij: monitoring a standard value of the monitoring concentration of the pollution or water environment index j at a monitoring point i; c. Cij+1 for lg (c)ij+1) > 0, and the evaluation result is not influenced through mathematical demonstration;
Ki: monitoring a comprehensive influence index of the pollution or water environment index of a point i on a human body;
p: and (4) the number of indexes of the polluted or water environment, wherein P is 5.
5. The method for evaluating the watershed wetland water environment state and the public satisfaction degree according to claim 1, wherein the relationship between the wetland nutrition index and the wetland water environment comprehensive influence index in the step 2) is based on national water resource comprehensive planning lake nutrition state evaluation standard data, standardized according to a formula 3, and combined with the K of the formula 3 and the K of the formula 4iThe value calculation method is used for calculating the wetland water environment comprehensive influence index corresponding to each nutrition index water environment index concentration value, and expressing the relationship between the wetland nutrition index and the wetland water environment comprehensive influence index by establishing a fitting curve.
Equation 3: c. Cij＝c′ij/Sj
c′ij: monitoring original monitoring data of pollutants or water environment indexes j at monitoring points i;
cij: monitoring concentration standard values of pollutants or water environment indexes j at monitoring points i;
Sj: the highest value of the pollutant or water environment index j in the classification standard.
6. The watershed wetland water environment state and public satisfaction evaluation method of claim 1, characterized by comprising the following steps: the public watershed wetland water environment state satisfaction degree grade division method is integratedComprehensive influence index K of wetland water environmentiThe corresponding relation of the value change range, the change rate and the nutrition grade divides the public satisfaction degree of the wetland water environment state into 4 grades: the specific division of the good, medium, poor and very poor is shown in Table 1.
TABLE 1 Water environmental satisfaction rating of public wetland
Note: kiRate of change*Represents KiThe index rate of change of the values with the nutritional state is obtained from the slope of the function in fig. 1.
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