CN106355016A - River health assessment method based on coordinated development degree - Google Patents

Abstract

The invention discloses a river health assessment method based on coordinated development degree. The river health assessment method includes the steps: building a river health assessment index system and determining the weight of each assessment index; building a river health coordinated development degree assessment model and calculating overall ecological integrality health condition indexes, social service function health condition indexes, coordination degree, comprehensive assessment indexes and the coordinated development degree of a river; classifying the coordinated development degree and the comprehensive assessment indexes and comparing the ecological integrality health condition indexes with the social service function health condition indexes to obtain comprehensive assessment results based on the river health coordinated development degree assessment model; analyzing river system health coordinated development conditions. According to the river health assessment method, the overall health degree of the river and the health degree of monitoring points can be reflected, and the coordinated development conditions of the natural attribute and the social attribute of the river can be assessed.

Description

Evaluating Methods for River Health based on coordinated development degree

Technical field

The present invention relates to a kind of method, in particular, it is to be related to a kind of river health assessment based on coordinated development degree Method.

Background technology

Urban river ecosystem health problem be that mankind's activity is led to it is impossible to be present in the mankind value judgment it Outward.The river of health, except the structure of ecosystem to be maintained and function, also will make it possess certain social value.Therefore, River health assessment system should comprise ecological integrity and sustainable society service function two aspect.What ecological integrity characterized is The health degree of river naturalness, affects the restoring force of ecosystem；Sustainable society service function refers to river to society Meeting expanding economy and the support impetus of human health, are the main targets of ecosystem management.Only both coordinate to send out Exhibition, could maintain the benign cycle of river ecosystem and the normal operation of social service function, promote harmony between man and nature to send out Exhibition.Traditional Evaluating Methods for River Health is come integrated contributory factor by the health degree of each factor of influence in river with multiplied by weight Information although river health Comprehensive Evaluation result can be obtained, but be difficult to reflect the interphase interaction of each influence factor Relativity.In addition, traditional Evaluating Methods for River Health is less to the consideration of social service function, and, the river of its proposition Stream health indicator system is typically just in specific river, less to the health assessment reference in other rivers.

Content of the invention

The invention aims to solving the deficiency of above-mentioned tradition Evaluating Methods for River Health, a kind of being based on is provided to coordinate The Evaluating Methods for River Health of Development degree, can reflect the health degree of the overall and each monitoring point in river, can weigh river certainly again So coordinated development situation of attribute and social property.

The purpose of the present invention is achieved through the following technical solutions.

The Evaluating Methods for River Health based on coordinated development degree of the present invention, comprises the following steps:

(1) build river health assessment index system, determine the weight of each evaluation index；

(2) set up river health coordinated development degree evaluation model: each evaluation index measured value of each monitoring point in river is entered Row normalized, determines that the ecological integrity health status index of each monitoring point in river, social service function's health status refer to Number, degrees of coordination, comprehensive evaluation index and coordinated development degree, calculate the overall ecological integrity health status index in river, society Service function health status index, degrees of coordination, comprehensive evaluation index and coordinated development degree；

(3) by coordinated development degree and comprehensive evaluation index divided rank, by comparative ecology integrity health status index With social service function's health status index, provide the comprehensive evaluation result based on river health coordinated development degree evaluation model, Analysis river system health coordinated development situation.

In described step (1), river health assessment index system includes two targets of ecological integrity and social service function Layer, described ecology integrity includes hydrographic water resource, physical arrangement, water quality, biological four rule layers, described social service function At least include flood control function, water supply function, receive dirty function and four rule layers of landscape function, each rule layer described is divided into altogether Property index and individual character index.

In described step (2), according to below equation, place is normalized to each evaluation index measured value of each monitoring point in river Reason:

$x_i=\left\{\begin{array}{cc}0& {x_i}^{*}\&greaterequal;s_{it}\\ h_{k-1}-\frac{s_{i(k-1)}-{x_i}^{*}}{s_{ik}-s_{i(k-1)}}(h_k-h_{k-1})& s_{i(k-1)}\≤{x_i}^{*}\≤s_{ik},2\≤k\≤t\\ 1& {x_i}^{*}\≤s_{i1}\end{array}\right.$

In formula, x_i ^*(i=1,2 ..., n) be i-th evaluation index measured value；h_kFor the tax score value of kth level standard, 0≤ h_kThe classification standard that≤1,1≤k≤t, t divide for evaluation index；s_ikRepresent the kth level standard value of i-th evaluation index.

In described step (2), the ecological integrity health status index of each monitoring point in river calculates according to below equation:

$f\left(x\right)=\underset{i=1}{\overset{p}{\σ}}{w}_i{x}_i$

Social service function's health status index of each monitoring point in river calculates according to below equation:

$g\left(y\right)=\underset{j=1}{\overset{m}{\σ}}{w}_j{y}_j$

In formula, w_i, w_jIt is respectively the weight of ecological integrity and each evaluation index of social service function；x₁,x₂,…,x_pFixed River ecological integrity levied by scale, is the normalized value of evaluation index；y₁,y₂,…,y_mQuantitatively characterizing river social service function, Normalized value for evaluation index.

In described step (2), the degrees of coordination of each monitoring point in river, comprehensive evaluation index and coordinated development degree press public affairs respectively Formula calculates:

C=(1-c_fg ²)^k

T=α × f (x)+β × g (y),

In formula, c_fgEcological integrity health status index and social service function's health status for each monitoring point in river refer to Coefficient of dispersion between number system；C is the degrees of coordination of each monitoring point in river；T is the comprehensive evaluation index of each monitoring point in river；D is The coordinated development degree of each monitoring point in river；K is adjustment factor, 2≤k≤5；α, β are weight undetermined or policy coefficient, α=0.7, β =0.3.

In described step (2), the overall ecological integrity health status index in river calculates according to below equation:

$f\left(x\right)=\underset{n=1}{\overset{n\sec ts}{\σ}}\frac{f\left(x\right)\×sln}{rivl}$

The overall social service function's health status index in river calculates according to below equation:

$g\left(y\right)=\underset{n=1}{\overset{n\sec ts}{\σ}}\frac{g\left(y\right)\×sln}{rivl}$

In formula, f (x), g (y) are respectively ecological integrity health status index and the community service work(of each monitoring point in river Can health status index；Nsects is the total number of river monitoring point；Sln is the representative section length of n-th monitoring point；rivl For participating in assessment section total length,

In described step (2), the overall degrees of coordination in river, comprehensive evaluation index and coordinated development degree are respectively according to following public affairs Formula calculates:

c_Always=(1-c_fg'²)^k

t_Always=α × f (x)+β × g (y),

In formula, c_fg' it is the overall ecological integrity health status index in river and social service function's health status index Coefficient of dispersion between two systems；c_AlwaysFor the overall degrees of coordination in river；t_AlwaysFor the overall comprehensive evaluation index in river；d_AlwaysTotal for river The coordinated development degree of body；α, β are weight undetermined or policy coefficient, α=0.7, β=0.3.

In described step (3), coordinated development degree and comprehensive evaluation index are divided into Pyatyi.

Compared with prior art, technical scheme is had the benefit that

(1) it is proposed that the Unified frame of river health assessment index system in the present invention, more conventional research is more fully And quantification；

(2) in the present invention, the coordinated development degree in socic-economic field is incorporated in river health assessment, both can embody Synergistic degree of strength between internal S order parameter in river system evolution, can reflect the quality of group effect and comprehensive again Close level of development, also can apply between same river contemporaneity difference section, same river different times river simultaneously Between each influence factor of system develop in harmony situation evaluation with compare.

Brief description

Fig. 1 is that the health degree of each monitoring point in Luanhe River ecology integrity and social service function in the embodiment of the present invention one shows It is intended to；

Fig. 2 is the coordinated development shape of each monitoring point in Luanhe River ecology integrity and social service function in the embodiment of the present invention one Condition schematic diagram.

Specific embodiment

The invention will be further described below in conjunction with the accompanying drawings.

The Evaluating Methods for River Health based on coordinated development degree of the present invention, is achieved through the following technical solutions: first, structure Build the Unified frame including ecological integrity and river health assessment index system of both social service function；Then, build Vertical river ecological integrity and the coordinative degree of social service function's two subsystemses, and propose to manage based on river health Coordinated development degree classification standard；Finally, according to model result and classification standard, analysis river system health coordinated development shape Condition, and spatial-temporal evolution pattern, guiding mechanism and the tied mechanism that river system develops in harmony.Specifically include following steps:

First, build river health assessment index system, determine the weight of each evaluation index.

River health assessment index system includes two destination layers of ecological integrity and social service function, and described ecology is complete Whole property includes hydrographic water resource, physical arrangement, water quality, biological four rule layers, and described social service function at least includes controlling flood Function, water supply function, receive dirty function and four rule layers of landscape function, the general character from river and individual character angle, by river Each rule layer of health assessment indicators is divided into general character index and individual character index, is shown in Table 1.

In table 1, general character index is " River Health Assessment index, standard and method "^[4]In essential index, individual character index is Obtain in the statistical result of index system from 2005-2014 domestic and international river health pertinent literature, concrete statistic processess are: 1. the principle such as authoritative, representative, effective based on document, inquires about domestic and international 2005-2014 river health pertinent literature 136, combing goes out 114 river health assessment index systems, altogether 191 indexs；2. by all indexs from hydrographic water resource, The aspects such as physical arrangement, water quality, biology and social service function carry out statistical analysiss, further according to the title of index, membership, The aspects such as symbolical meaningses, computational methods and dependency carry out concluding merging, the preliminary screening of the system that hits the target；3. following finger On the basis of mark science, independence, level, the principle such as representativeness it is considered to the horizontal data of existing monitoring technology easy Availability etc., is screened to the index of preliminary screening again, establishes the river health assessment with higher employing degree or degree of recognition Key index, final the selection result is listed in table 1, and table 1 bracket inner digital is the employing frequency (or degree of recognition) of index.

Table 1 river health assessment index system

For a concrete river, river characteristic index can be chosen from table 1 individual character index row according to basin practical situation, Combine with general character indexs all in table 1 again, form health assessment indicators system.For partial rivers, also need to be in general character index On the basis of individual character index, add its own characteristic index, for example, THE LOWER YANGTZE VALLEY schistosomicide is rampant, to the Changjiang river ecosystem System health creates material impact, should list schistosomiasis propagation blocking-up rate in the Changjiang river health assessment indicators system

Then, set up river health coordinated development degree evaluation model.

(1) each evaluation index measured value of each monitoring point in river is normalized:

Evaluation index in table 1 is divided into t level standard, and with reference to domestic and international achievement in research, standards at different levels is assigned Point.So that numerical value is little for excellent cost type index as a example, if x_i ^*(i=1,2 ..., n) be i-th evaluation index measured value, h_kFor Tax score value (0≤the h of kth level standard_k≤ 1,1≤k≤t), s_ikRepresent the kth level standard value of i-th evaluation index, then x_i ^*Normalizing Value x after change_iCan be given by:

$x_i=\left\{\begin{array}{cc}0& {x_i}^{*}\&greaterequal;s_{it}\\ h_{k-1}-\frac{s_{i(k-1)}-{x_i}^{*}}{s_{ik}-s_{i(k-1)}}(h_k-h_{k-1})& s_{i(k-1)}\≤{x_i}^{*}\≤s_{ik},2\≤k\≤t\\ 1& {x_i}^{*}\≤s_{i1}\end{array}\right.---\left(1\right)$

For the income type index that the bigger river of numerical value is more healthy, computational methods are similar to, will not be described here.

(2) determine that the ecological integrity health status index of each monitoring point in river and social service function's health status refer to Number:

If index x₁,x₂,…,x_pQuantitatively characterizing river ecological integrity, index y₁,y₂,…,y_mQuantitatively characterizing river society Service function, then ecological integrity health status index f (x) of each monitoring point in river is according to below equation calculating:

$f\left(x\right)=\underset{i=1}{\overset{p}{\σ}}{w}_i{x}_i---\left(2\right)$

Social service function's health status index g (y) of each monitoring point in river calculates according to below equation:

$g\left(y\right)=\underset{j=1}{\overset{m}{\σ}}{w}_j{y}_j---\left(3\right)$

In formula, w_i, w_jIt is respectively the weight of ecological integrity and each evaluation index of social service function, can be by entropy assessment^[1]、 Analytic hierarchy process (AHP)^[2], PCA^[3]Determine Deng tax power method；x₁,x₂,…,x_pAnd y₁,y₂,…,y_mIt is returning of index One change value.

(3) degrees of coordination, comprehensive evaluation index and the coordinated development degree of each monitoring point in river are determined:

Degrees of coordination c between river ecological integrity f (x) and social service function g (y) system and coordinated development degree d can be by Following formula calculates:

$c_{fg}=\sqrt{1-\frac{f\left(x\right)\·g\left(y\right)}{{\left(\frac{f\left(x\right)+g\left(y\right)}{2}\right)}^2}}---\left(4\right)$

C=(1-c_fg ²)^k(5)

T=α × f (x)+β × g (y) (6)

$d=\sqrt{ct}---\left(7\right)$

In formula, c_fgEcological integrity health status index and social service function's health status for each monitoring point in river refer to Coefficient of dispersion between number system；K is adjustment factor, generally, 2≤k≤5；T is that the overall merit of each monitoring point in river refers to Number, the health status of reflection river system；α, β are weight undetermined or policy coefficient, and Ying You expert determines, national Technical Reference body System^[4]In, α=0.7, β=0.3.

(4) the overall coordinated development situation in river

Calculate overall ecological integrity health status index f (x) in river, formula is as follows:

$f\left(x\right)=\underset{n=1}{\overset{n\sec ts}{\σ}}\frac{f\left(x\right)\×sln}{rivl}---\left(8\right)$

Calculate overall social service function's health status index g (y) in river, formula is as follows:

$g\left(y\right)=\underset{n=1}{\overset{n\sec ts}{\σ}}\frac{g\left(y\right)\×sln}{rivl}---\left(9\right)$

In formula, f (x), g (y) are respectively ecological integrity health status index and the community service work(of each monitoring point in river Can health status index；Nsects is the total number of river monitoring point；Sln is the representative section length of n-th monitoring point；rivl For participating in assessment section total length,

F (x) and g (y) is substituted into formula (4) to formula (7), obtains overall degrees of coordination c in river_Always, comprehensive evaluation index t_AlwaysWith Coordinated development degree d_Always, formula is as follows:

${c_{fg}}^{\′}=\sqrt{-\frac{f\left(x\right)\·g\left(y\right)}{{\left(\frac{f\left(x\right)+g\left(y\right)}{2}\right)}^2}}---\left(10\right)$

c_Always=(1-c_fg'²)^k(11)

t_Always=α × f (x)+β × g (y) (12)

In formula, c_fg' it is the overall ecological integrity health status index in river and social service function's health status index Coefficient of dispersion between two systems；α, β are weight undetermined or policy coefficient, and Ying You expert determines, national Technical Reference system^[4]In, α=0.7, β=0.3.

Secondly, coordinated development degree and comprehensive evaluation index grade classification.

Coordinated development degree and comprehensive evaluation index grade classification are Pyatyi, by comparing the life of each rule layer of river health State integrity health status index and social service function's health status index, are given based on river health coordinated development degree evaluation The comprehensive evaluation result of model, assay river system health coordinated development situation, it is shown in Table 2.

Table 2 coordinated development degree and comprehensive evaluation index grade classification

Embodiment one

A practical application example is given below, to illustrate and how to apply the method for the invention to evaluate river health And coordinated development situation.

2011, Luanhe River investigation group riverbank banding to 14 Water Functional Zones in Luanhe River monitoring point respectively at August and October Condition, water quality condition, biological condition are monitored twice, and have carried out Luanhe River Public Satisfaction tune in the form of questionnaire Look into.14 monitoring points be respectively as follows: lightning River Reservoir, Zhenglan Banner, Baicheng, outer fissure MENZI, Guo Jiatun, three road river, upper plate city, Oolong rock, Pan Jiakoucun, Guo Gouqiao, mulberry field, capital mountain railway bridge and Jiang Gezhuan, each monitoring point uses p respectively₁,p₂,…,p₁₄Represent. On the basis of current investigation and monitoring result, collect the three road He Zi hydrometric stations being located at Luanhe River middle and upper reaches intersection and be located at the Luanhe River 1956 of the Luan County hydrometric station of middle and lower reaches intersection～test day by day Streamflow Data in 2011, consult " Haihe basin in 2011 Water resource publication ", the evaluation index value for determining each monitoring point in the Luanhe River makees place mat.

(1) Luanhe River health assessment indicators and weight are established

According to river health assessment index system structure in table 1, Luanhe River health assessment indicators system by general character index and Property index constitute.General character index includes hydrographic water resource, physical arrangement, water quality, biology and social service function etc. five aspect, by Whole 12 indexs in table 1 general character index row are constituted.Because the numerous sampling point in the Luanhe River is lake storehouse impounded body, algae is easily numerous in a large number Grow, in addition the development of Luanhe River downstream industry, quantity of wastewater effluent is more, in Table 1 choose " Phytoplankton Species Diversity index " and " Heavy Metal Pollution " as the individual character index of Luanhe River health assessment, the nutrient laden situation in the reflection Luanhe River and heavy metal-polluted respectively Dye situation.Comprehensive general character index and individual character index, form representational 14 indexs and refer to as the basis of Luanhe River health assessment Mark (table 3).Determine each index weights using based on the Evaluation formula of objective weighted model and subjective weighting method, result such as table 3 institute Row, bracket inner digital is index weights.

Table 3 Luanhe River health evaluating index system

(2) Luanhe River health coordinated development degree evaluation model

The Luanhe River each monitoring point measured data in 2011 is substituted in formula (1)-formula (13), builds ecological integrity and society's clothes Coordinated development degree evaluation model between business function two system, 1. evaluation result, as shown in table 4, Fig. 1 and Fig. 2, can be concluded that Knowable to the variation tendency of f (x) and g (y), from upstream to downstream, Luanhe River ecology integrity is in the state gradually degenerated；Each prison Social service function's development pole of measuring point is uneven, and between adjacent monitoring point, gap is more apparent；Luanhe River ecology integrity and society Both service functions be mutually promote, the relation of mutually restriction, in conjunction with coordinated development degree grading standard (table 2), can have pin To each monitoring point region, dredging waterway is carried out to property；2. degrees of coordination c of each monitoring point in the Luanhe River is higher, and coordinated development degree D is relatively low, shows that the coordinated development level of each monitoring point is made by integrated countermeasures system t between ecological integrity and social service function About, river management should improve emphatically the level of development of ecological integrity and social service function from now on；3. the Luanhe River in 2011 General health belongs to " subhealth state " grade, and coordinated development type is " moderate coordinated development class ecological environment retarded type ", says The improvement of bright Luanhe River ecological environment lags behind the development of social service function, and Luanhe River management from now on should be to improve ecological integrity While with social service function's level of development, based on ecological recovery.

Table 4 Luanhe River ecology integrity and social service function two system coordination Development degree the model calculation

List of references:

[1] Zheng Zhihong. river health assessment and ecological environment water demand theory and applied research [m]. Beijing: China Water diuretic Electric publishing house, 2014.

[2] Zhang Ping Jiang. analytic hierarchy process (AHP) and its application case [m]. Beijing: Electronic Industry Press, 2014.

[3] Wang Xiaopeng, Cao Guangchao. [m] is studied in the environmental quality assessment based on multivariate statistics and gis. Beijing: scientific publication Society, 2013.

[4] Water Resources Division of Ministry of Water Resources. River Health Assessment index, standard and method (pilot work use) [r], 2011.

Although being described to the function of the present invention and work process above in conjunction with accompanying drawing, the invention is not limited in Above-mentioned concrete function and work process, above-mentioned specific embodiment is only schematically, rather than restricted, ability The those of ordinary skill in domain under the enlightenment of the present invention, without departing from present inventive concept and scope of the claimed protection situation Under, a lot of forms can also be made, these belong within the protection of the present invention.

Claims (8)

1. the Evaluating Methods for River Health based on coordinated development degree is it is characterised in that comprise the following steps:

(1) build river health assessment index system, determine the weight of each evaluation index；

(2) set up river health coordinated development degree evaluation model: each evaluation index measured value of each monitoring point in river is returned One change is processed, and determines the ecological integrity health status index of each monitoring point in river, social service function's health status index, association Scheduling, comprehensive evaluation index and coordinated development degree, calculate the overall ecological integrity health status index in river, community service work( Energy health status index, degrees of coordination, comprehensive evaluation index and coordinated development degree；

(3) by coordinated development degree and comprehensive evaluation index divided rank, by comparative ecology integrity health status index and society Function health status score can be serviced, provide the comprehensive evaluation result based on river health coordinated development degree evaluation model, analysis River system health coordinated development situation.

2. the Evaluating Methods for River Health based on coordinated development degree according to claim 1 is it is characterised in that described step (1) in, river health assessment index system includes two destination layers of ecological integrity and social service function, described ecological complete Property include hydrographic water resource, physical arrangement, water quality, biological four rule layers, described social service function at least includes work(of controlling flood Energy, water supply function, receive dirty function and four rule layers of landscape function, each rule layer described is divided into general character index and individual character refers to Mark.

3. the Evaluating Methods for River Health based on coordinated development degree according to claim 1 is it is characterised in that described step (2) in, each evaluation index measured value of each monitoring point in river is normalized according to below equation:

$x_i=\left\{\begin{array}{cc}0& {x_i}^{*}\&greaterequal;s_{it}\\ h_{k-1}-\frac{s_{i(k-1)}-{x_i}^{*}}{s_{ik}-s_{i(k-1)}}(h_k-h_{k-1})& s_{i(k-1)}\≤{x_i}^{*}\≤s_{ik},2\≤k\≤t\\ 1& {x_i}^{*}\≤s_{i1}\end{array}\right.$

In formula, x_i ^*(i=1,2 ..., n) be i-th evaluation index measured value；h_kFor the tax score value of kth level standard, 0≤h_k≤ The classification standard that 1,1≤k≤t, t divide for evaluation index；s_ikRepresent the kth level standard value of i-th evaluation index.

4. the Evaluating Methods for River Health based on coordinated development degree according to claim 1 is it is characterised in that described step (2) in, the ecological integrity health status index of each monitoring point in river calculates according to below equation:

$f\left(x\right)=\underset{i=1}{\overset{p}{\σ}}{w}_i{x}_i$

Social service function's health status index of each monitoring point in river calculates according to below equation:

$g\left(y\right)=\underset{j=1}{\overset{m}{\σ}}{w}_j{y}_j$

In formula, w_i, w_jIt is respectively the weight of ecological integrity and each evaluation index of social service function；x₁,x₂,…,x_pQuantitative table Levy river ecological integrity, be the normalized value of evaluation index；y₁,y₂,…,y_mQuantitatively characterizing river social service function, for commenting The normalized value of valency index.

5. the Evaluating Methods for River Health based on coordinated development degree according to claim 1 is it is characterised in that described step (2) in, the degrees of coordination of each monitoring point in river, comprehensive evaluation index and coordinated development degree are pressed formula respectively and are calculated:

C=(1-c_fg ²)^k

T=α × f (x)+β × g (y),

In formula, c_fgEcological integrity health status index for each monitoring point in river and health status index system of social service function Coefficient of dispersion between system；C is the degrees of coordination of each monitoring point in river；T is the comprehensive evaluation index of each monitoring point in river；D is river The coordinated development degree of each monitoring point；K is adjustment factor, 2≤k≤5；α, β are weight undetermined or policy coefficient, α=0.7, β= 0.3.

6. the Evaluating Methods for River Health based on coordinated development degree according to claim 1 is it is characterised in that described step (2) in, the overall ecological integrity health status index in river calculates according to below equation:

$f\left(x\right)=\underset{n=1}{\overset{n\sec ts}{\σ}}\frac{f\left(x\right)\×sln}{rivl}$

The overall social service function's health status index in river calculates according to below equation:

$g\left(y\right)=\underset{n=1}{\overset{n\sec ts}{\σ}}\frac{g\left(y\right)\×sln}{rivl}$

In formula, f (x), g (y) are respectively the ecological integrity health status index of each monitoring point in river and social service function is good for Health status score；Nsects is the total number of river monitoring point；Sln is the representative section length of n-th monitoring point；Rivl is ginseng Plus assessment section total length,

7. the Evaluating Methods for River Health based on coordinated development degree according to claim 1 is it is characterised in that described step (2) in, the overall degrees of coordination in river, comprehensive evaluation index and coordinated development degree calculate according to below equation respectively:

c_Always=(1-c_fg ^'2)^k

t_Always=α × f (x)+β × g (y),

In formula, c_fg' it is the overall ecological integrity health status index in river and social service function's health status index two is Coefficient of dispersion between system；c_AlwaysFor the overall degrees of coordination in river；t_AlwaysFor the overall comprehensive evaluation index in river；d_AlwaysOverall for river Coordinated development degree；α, β are weight undetermined or policy coefficient, α=0.7, β=0.3.

8. the Evaluating Methods for River Health based on coordinated development degree according to claim 1 is it is characterised in that described step (3) in, coordinated development degree and comprehensive evaluation index are divided into Pyatyi.