CN109657942A - A kind of method of river sound development trend under Prediction of Climate Change - Google Patents
A kind of method of river sound development trend under Prediction of Climate Change Download PDFInfo
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- 230000036541 health Effects 0.000 claims abstract description 34
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 238000005070 sampling Methods 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 238000004088 simulation Methods 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 239000011574 phosphorus Substances 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 3
- 239000003945 anionic surfactant Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000003862 health status Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
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- 239000003651 drinking water Substances 0.000 description 1
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Abstract
The invention discloses a kind of method of sound development trend in river under Prediction of Climate Change, include the following steps: to obtain the zoic data of institute in water body with indoor identification by sampling on the spot；Water quality data is obtained by apparatus measures；DEM, temperature, precipitation, land use pattern, leaf area index are obtained as input data；Calculate ecological flow；It calculates ecological flow and meets situation；Calculate flow velocity；Calculate the river health water quality factor under climate change；Calculate the river health aquatic organism factor under climate change；Calculate the river health score under climate change.The present invention can calculate the influence that climate change generates rivers health status, compensate for the blank to the following river health development prediction, can offer reference for global Ecology researcher, provide scientific reference for the policy making of river management person.
Description
Technical field
The present invention relates to a kind of a kind of methods of sound development trend in river under method more particularly to Prediction of Climate Change.
Background technique
River is the tie of land and ocean, has irreplaceable role in nature water circulation, is water resource two
The particularly important path of sub-distribution, while still substance circulation, the important channel of energy flow between a variety of ecosystems.For people
For class, healthy river supply drinking water for the mankind, industrial or agricultural water while, also have both amusement and leisure, shipping, the energy
It numerous surcharges such as utilizes, there is critical role in human social development.Currently, the mankind for river theoretical research still
Not exclusively, Operational Mechanisms are still not clear, and the function in river can't be substituted by the prior art, therefore maintain river health for certainly
Right boundary is all of great significance for the mankind.
In recent decades, climate change and violent mankind's activity change water circulation and river environment in global range,
Grave danger is caused to river health, causes ecological integrality to be damaged, river ecological value of services reduces.Health is degenerated
River in the available water resource gradually decreased, the water quality that constantly deteriorates be difficult to meet the needs of mankind are to river service function,
Social safety, ecological safety and Water resources security are seriously threatened, it is very urgent with protection to the maintenance of river health.
River health assessment is the basis of river health protection, is learned by the whole world in recent years the research of river health assessment
The concern of person, government and stakeholder.Climate change to global water circulation produce profound influence, and then cause the hydrology,
The chain reaction of water quality, aquatic organism or even entire aquatic ecosystem, causes rivers health status to change, and only makees Present assessment
It is difficult to estimate the influence that climate change generates following river health, and by predicting that river health development trend then may make
This influence displays, and is adjusted convenient for manager to policy.
Summary of the invention
In order to solve shortcoming present in above-mentioned technology, it is strong that the present invention provides rivers under a kind of Prediction of Climate Change
The method of health development trend.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: river is strong under a kind of Prediction of Climate Change
The method of health development trend, includes the following steps:
1) the zoic data of institute in water body are obtained by sampling on the spot and indoor identification；
2) water quality data, including water temperature, pH, conductivity, dissolved oxygen, total nitrogen, total phosphorus are obtained by apparatus measures；
3) DEM, temperature, precipitation, land use pattern, leaf area index are obtained as input data；
4) ecological flow is calculated；
5) it calculates ecological flow and meets situation；
6) flow velocity is calculated；
7) the river health water quality factor under climate change is calculated；
8) the river health aquatic organism factor under climate change is calculated；
9) the river health score under climate change is calculated.
Further, step 4) calculates ecological flow using formula one, and ecological flow is indicated with QE.
Wherein n indicates channel roughness, VEIndicate that ecological flow velocity, J indicate stream gradient.
Further, step 5) meets situation using the calculating ecological flow of formula two；
Qq=Q/QEFormula two
Wherein, QqMeet situation for ecological flow, Q is the run-off that simulation obtains.
Further, step 6) obtains flow velocity v according to formula three；
V=Q/A formula three
Wherein, Q is the run-off that simulation obtains, and A is measured profile area.
Further, step 7) calculates the concentration of water quality factor under climate change according to formula four, and water quality factor includes life
Change oxygen demand, COD, permanganate index, chloride, dissolved oxygen, fluoride, anionic surfactant, ammonia nitrogen,
Sulfide, sulfate, total phosphorus, total nitrogen；
Wherein C and C ' respectively indicates water quality factor concentration under status year and climate change, F and F ' respectively indicate status year with
Run-off under climate change.
Further, step 8) calculates the river health aquatic organism diversity under climate change according to formula five；
Wherein Z is aquatic organism diversity, and X, Y are respectively water quality indicator transformation matrices and hydrology index transformation matrices；WithThe respectively overall influence to aquatic organism of the overall influence and the hydrology to aquatic organism of water quality, pi is regression coefficient, for difference
Class species coefficient is different.
Further, step 9) calculates river health score RH according to formula six, formula seven；
Wherein, i, j indicate i-th, j index in first class index and two-level index, and n, m are respectively two-level index sum,
Pi、wi、P′i、w′iRespectively represent first class index, first class index weight, two-level index and two-level index weight, two-level index power
It is utilized respectively entropy assessment calculating again.
To sum up, sound development trend in river under climate change effect can quickly and easily be obtained according to above step.
The beneficial effects of the present invention are:
The present invention is a kind of method of sound development trend in river under determining climate change effect, compensates for the prior art
Vacancy.This method principle simply and readily operates, can by the hydrology factor, water quality factor, the triangular connection of the aquatic organism factor
The development trend of river health under Future Climate Change is calculated.
Specific embodiment
The present invention will be further described in detail with reference to the specific embodiments.
A kind of method of river sound development trend under Prediction of Climate Change, comprising the following steps:
Step 1: data acquisition
(1) the zoic data of institute in water body are obtained by sampling on the spot and indoor identification；
(2) water quality datas such as water temperature, pH, conductivity, dissolved oxygen, total nitrogen, total phosphorus are obtained by apparatus measures.
(3) the DTVGM input datas such as DEM, temperature, precipitation, land use pattern, leaf area index are obtained.
Step 2: simulation climate changes lower run-off
Change lower run-off Q using MS-DTVGM hydrological model simulation climate.
Step 3: the river health hydrology factor under climate change is calculated
(1) ecological flow, ecological flow Q are calculated using formula one according to improved ecological waterpower radius method firstETable
Show.
Formula one:
Wherein n indicates channel roughness, VEIndicate that ecological flow velocity, J indicate stream gradient.
Then ecological flow is calculated according to formula two and meets situation Qq。
Formula two:
Qq=Q/QE
(2) the run-off Q and measured profile area A obtained according to simulation calculates flow velocity v according to formula three.
Formula three:
V=Q/A
Step 4: the river health water quality factor under climate change is calculated
The concentration of water quality factor under climate change is calculated according to formula four, water quality factor includes biochemical oxygen demand (BOD) (BOD), changes
Learn oxygen demand (COD), permanganate index (CODMn), chloride (Cl), dissolved oxygen (DO), fluoride (F), anionic surface it is living
Property agent (AS), ammonia nitrogen (NH3- N), sulfide (S), sulfate (SO4), total phosphorus (TP), total nitrogen (TN).
Formula four:
Wherein C and C ' respectively indicates water quality factor concentration under status year and climate change, F and F ' respectively indicate status year with
Run-off under climate change.
Step 5: the river health aquatic organism factor under climate change is calculated
The river health aquatic organism diversity under climate change is calculated according to formula five.
Formula five:
Wherein Z is aquatic organism diversity, and X, Y are respectively water quality indicator transformation matrices and hydrology index transformation matrices.WithThe respectively overall influence to aquatic organism of the overall influence and the hydrology to aquatic organism of water quality, pi is regression coefficient, for difference
Class species coefficient is different.
Step 7: the river health score under climate change is calculated
River health score RH is calculated according to formula six；
Formula six:
Wherein, i, j indicate i-th, j index in first class index and two-level index, and n, m are respectively two-level index sum,
Pi、wi、P′i、w′iRespectively represent first class index, first class index weight, two-level index and two-level index weight, two-level index power
It is utilized respectively entropy assessment calculating again.
The present invention is by the connection between the hydrology factor, water quality factor, the aquatic organism factor, according to climate change to the hydrology factor
Influence calculate influence of the climate change to water quality factor, the aquatic organism factor, then weighted calculation obtains river health score,
To obtain sound development trend in river under climate change.The present invention can calculate what climate change generated rivers health status
It influences, compensates for the blank to the following river health development prediction, can offer reference for global Ecology researcher, be river
The policy making of flow management person provides science reference.
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of method of river sound development trend under Prediction of Climate Change, it is characterised in that: the method includes walking as follows
It is rapid:
1) the zoic data of institute in water body are obtained by sampling on the spot and indoor identification；
2) water quality data, including water temperature, pH, conductivity, dissolved oxygen, total nitrogen, total phosphorus are obtained by apparatus measures；
3) DEM, temperature, precipitation, land use pattern, leaf area index are obtained as input data；
4) ecological flow is calculated；
5) it calculates ecological flow and meets situation；
6) flow velocity is calculated；
7) the river health water quality factor under climate change is calculated；
8) the river health aquatic organism factor under climate change is calculated；
9) the river health score under climate change is calculated.
2. the method for river sound development trend under Prediction of Climate Change according to claim 1, it is characterised in that: described
Step 4) calculates ecological flow, ecological flow Q using formula oneEIt indicates.
Wherein n indicates channel roughness, VEIndicate that ecological flow velocity, J indicate stream gradient.
3. the method for river sound development trend under Prediction of Climate Change according to claim 2, it is characterised in that: described
Step 5) calculates ecological flow using formula two and meets situation；
Qq=Q/QEFormula two
Wherein, QqMeet situation for ecological flow, Q is the run-off that simulation obtains.
4. the method for river sound development trend under Prediction of Climate Change according to claim 3, it is characterised in that: described
Step 6) obtains flow velocity v according to formula three；
V=Q/A formula three
Wherein, Q is the run-off that simulation obtains, and A is measured profile area.
5. the method for river sound development trend under Prediction of Climate Change according to claim 4, it is characterised in that: described
Step 7) calculates the concentration of water quality factor under climate change according to formula four, and water quality factor includes biochemical oxygen demand (BOD), chemical oxygen demand
It is amount, permanganate index, chloride, dissolved oxygen, fluoride, anionic surfactant, ammonia nitrogen, sulfide, sulfate, total
Phosphorus, total nitrogen；
Wherein C and C ' respectively indicates water quality factor concentration under status year and climate change, and F and F ' respectively indicate status year and weather
Change lower run-off.
6. the method for river sound development trend under Prediction of Climate Change according to claim 5, it is characterised in that: described
Step 8) calculates the river health aquatic organism diversity under climate change according to formula five；
Wherein Z is aquatic organism diversity, and X, Y are respectively water quality indicator transformation matrices and hydrology index transformation matrices；With
The respectively overall influence to aquatic organism of the overall influence and the hydrology to aquatic organism of water quality, pi is regression coefficient, for inhomogeneity
Species coefficient is different.
7. the method for river sound development trend under Prediction of Climate Change according to claim 6, it is characterised in that: described
Step 9) calculates river health score RH according to formula six, formula seven；
Wherein, i, j indicate i-th, j index in first class index and two-level index, and n, m are respectively that a two-level index is total, Pi,
wi、Pi′、w′iRespectively represent first class index, first class index weight, two-level index and two-level index weight, a two-level index weight
It is utilized respectively entropy assessment calculating.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112287299A (en) * | 2020-10-19 | 2021-01-29 | 河海大学 | River health change quantitative attribution method, device and system |
| CN112651179A (en) * | 2020-12-29 | 2021-04-13 | 哈尔滨工业大学 | River bottom mud pollution control method |
| CN114548754A (en) * | 2022-02-14 | 2022-05-27 | 北京林业大学 | Wetland buffer area water ecological health evaluation method based on trend judgment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195355A (en) * | 2017-11-28 | 2018-06-22 | 中国三峡建设管理有限公司 | The evaluation method and evaluating apparatus of a kind of river health |
| CN108320261A (en) * | 2018-01-18 | 2018-07-24 | 北控水务(中国)投资有限公司 | A kind of city river section dynamic water quality objective determines method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195355A (en) * | 2017-11-28 | 2018-06-22 | 中国三峡建设管理有限公司 | The evaluation method and evaluating apparatus of a kind of river health |
| CN108320261A (en) * | 2018-01-18 | 2018-07-24 | 北控水务(中国)投资有限公司 | A kind of city river section dynamic water quality objective determines method |
Non-Patent Citations (1)
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|---|
| C.S.ZHAO: ""Bioindicator Assessment Framework of River Ecosystem"", 《JOURNAL OF HYDROLOGIC ENGINEERING》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112287299A (en) * | 2020-10-19 | 2021-01-29 | 河海大学 | River health change quantitative attribution method, device and system |
| CN112287299B (en) * | 2020-10-19 | 2024-03-22 | 河海大学 | Quantitative attribution method, device and system for river health change |
| CN112651179A (en) * | 2020-12-29 | 2021-04-13 | 哈尔滨工业大学 | River bottom mud pollution control method |
| CN112651179B (en) * | 2020-12-29 | 2021-08-10 | 哈尔滨工业大学 | River bottom mud pollution control method |
| CN114548754A (en) * | 2022-02-14 | 2022-05-27 | 北京林业大学 | Wetland buffer area water ecological health evaluation method based on trend judgment |
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