CN102436541A - Ecological reference value calculating method based on plankton community change - Google Patents

Ecological reference value calculating method based on plankton community change Download PDF

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CN102436541A
CN102436541A CN2011102792266A CN201110279226A CN102436541A CN 102436541 A CN102436541 A CN 102436541A CN 2011102792266 A CN2011102792266 A CN 2011102792266A CN 201110279226 A CN201110279226 A CN 201110279226A CN 102436541 A CN102436541 A CN 102436541A
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index
ecological
point
integrality
water
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CN102436541B (en
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段梦
朱琳
冯剑丰
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Nankai Univ
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Abstract

The invention discloses an ecological reference value calculating method based on plankton community change. Ecological reference values of taihu lake basins and liao river basins in China are calculated by adopting a synthetical index method according to physical and chemical factors. A preliminary calculating framework is as follows: 1, determining a basin water environment ecological reference point and an ecological reference index; 2, making a BOX distribution map of each reference index of the reference point and giving a mark; and 3, weighing the marks of the ecological reference indexes, and taking the mark of 90 as the reference value of the basin. The establishment of an ecological reference can be used for evaluating the completeness of the structure and function of a water ecological system; and probably ignored potential problems during evaluation and analysis of other water quality references can be found out conveniently.

Description

Ecological reference value computing method based on the plankton community variation
Technical field:
The invention belongs to the formulation field of environmental science water quality benchmark; Be based on of the response of China's plankton community to ambient pressure variations; In conjunction with physical and chemical factor; Adopt composite index law (Multimeric Index) to calculate the ecological reference value in lake and river, and estimate the environmental health state in lake and river.
Background technology:
The U.S. has just launched the research and the formulation work of water quality benchmark in the sixties in 20th century; The a series of reference index systems that comprise health benchmark (Human Health Criteria), aquatic organism benchmark (Aquatic Life Criteria), sediment quality benchmark (Sediment Quality Criteria) and biology benchmark (Biological Criteria) have been worked out; Wherein the most frequently used water quality benchmark derivation method is diadic basic taper method---benchmark Cmax value (the Criteria maximum concentration of EPA in promulgation in 1985 " technical manual of the numeric type country water quality benchmark of the protection hydrobiont and uses thereof of deriving "; CMC) and the continuous concentration value of benchmark (Criteria continue concentration; CCC). except that the U.S.; European Union, Canada, Australian Holland etc. have also formulated corresponding water quality benchmark derivation method (PNEC, 2003 respectively; CCME, 1999; ANZECC&ARMCANZ, 2000; RIVM, 2001). Chinese scholar was carried out certain research to the water quality benchmark, and according to the diadic basic taper method of U.S. EPA, in conjunction with the biological characteristics in China part basin, had calculated the water quality benchmark of individual compounds such as cadmium, propylene be fine.
The derivation method of said reference all is based on toxicologic method foundation; Through the research pollutant to the poisonous effect of responsive bion (toxicity data that EPA points out to shift onto benchmark relates to the biology of 38 sections at least); As long as confirm the reference value of this pollutant. the thinking of these benchmark derivation methods is all thought can protect the sensitive species in the biocommunity; Just can protect whole biocommunity (more than at least 95%; EPA). but this benchmark derivation method has been ignored biological interspecies relation (symbiosis, commensalism, predation, competition, parasitism etc.) and intraspecific relationship (help each other in the kind, intraspecies combat); This relation can pollute thing the poisonous effect of bion is different from biocenological. and planktonic organism is an important biomolecule group in the water body; Its broad covered area, breeding be fast, responsive to the variation of environment, be in the pyramidal bottom of nutrition, can be used as indicator organism group, and this paper studies the foundation of water quality benchmark from ecological angle based on plankton community.
For separating with other water quality reference region; To be called ecological benchmark (Ecological Criteria from the water quality benchmark of ecological angle research; Ecocriteria). it is to be used to describe satisfy specify the hydrobiont purposes that water ecology is learned benchmark; And having the description type language or the numerical value of 26S Proteasome Structure and Function of the aquatic ecosystem of ecological integrality. ecological benchmark is to be purpose with protection basin water environmental ecology integrality; Through calculating ecological integrality index (the Index of Ecological Integrity that is without prejudice in the basin or receives the minimising damage reference point; IEI). the foundation of ecological benchmark can be used for estimating the integrality of aquatic ecosystem 26S Proteasome Structure and Function, and helps to find out the potential problems that other water quality benchmark evaluation analysis possibly ignored.
Summary of the invention:
1, the related notion of basin water Environmental ecology benchmark and characterizing method
(Ecological Criteria is to be used to describe satisfy to specify the hydrobiont purposes Ecocriteria) to basin water Environmental ecology benchmark, and has the description type language or the numerical value of 26S Proteasome Structure and Function of the aquatic ecosystem of ecological integrality.Its characterizing method comprises the ecological benchmark (Narritative Ecocriteria) of description type and two kinds of methods of the ecological benchmark (Numeric Ecocriteria) of numeric type.
The ecological benchmark of description type: adopt descriptive language that the ecological integrality that should satisfy the basin water environment of specifying the hydrobiont purposes is described.
The ecological benchmark of numeric type: adopt the method for numerical value that the ecological integrality that should satisfy the basin water environment of specifying the hydrobiont purposes is described.
RP (Reference Sites, RS):, embodied water body at " nature " state that does not receive under mankind's activity or the disturbed condition in order to describe the ecological characteristic that is without prejudice in the basin or receives the minimising damage water body.Selecting suitable water environment reference state is the key of confirming aquatic attitude benchmark.
(Index of Plankton Integrity, IPI): index such as the kind through phytoplankton, biomass, diversity characterizes the state of phytoplankton structure and function to phytoplankton integrality index.
(Index of Zooplankton Integrity, IZI): index such as the kind through animal plankton, biomass, diversity characterizes the state of float thing structure of community and function to animal plankton integrality index.
Physics and chemistry integrality index (Index of Water Integrity, IWI):, characterize the state that decreases water body through the tolerance of chemistry and physical attribute.
(Index of Ecological Integrity, IEI): the tolerance through chemistry, physics and biological attribute characterizes the not state of damaged ecosystem to ecological integrality index.
2, the computing method of basin water Environmental ecology benchmark recommended value
The ecological pedestal method of calculating watershed water environment is composite index law (Fig. 1).
Composite index law is that the concrete steps of the ecological benchmark of calculating watershed water environment are following:
1. obtain each reference variable Box figure of determined reference point, adopt the 95th/25th fractile to divide three/four intervals, the monitor value of reference point with the interval that is subordinate to that Box figure relatively obtains this each reference variable of reference point, is worth accordingly.
Can adopt 95th fractile or 25th fractile respectively is that bounded is built the distributive province of reference point and divided (Fig. 2).During when the undermined less of the reference point of selecting or relatively near state of nature; Can select the 25th fractile as bounded; Far away or comprise underminedly greatly the time when reference point of selecting and state of nature gap, can select the 95th fractile as bounded.
Division to the reference point distributed areas comprises threefold division, inquartation and standard quantile method (Fig. 3).
Threefold division is that the distributed area with reference point is divided into three parts, carries out assignment 1,3 and 5 respectively, and the ecological integrality of expression water body is " poor, in become reconciled ".Inquartation is that the distributed area with reference point is divided into four parts, carries out assignment 1,2,3 and 4 respectively, and the ecological integrality of expression water body is " poor, general, good and outstanding ".Standard fractile rule is the ratio that the value of monitor value and the pairing reference point of 95th fractile is divided by and is obtained, and ratio is big more, explains with the state of reference point approaching more.
2. the assignment of the reference variable of each reference point is carried out the equal weight addition, obtain the integrality index of this reference point.All reference variables of each reference point can obtain assignment after can comparing through the Box figure with all reference points, adopt the equal weight addition, can obtain a comprehensive integrality exponential quantity of each reference point.
3. according to the Box figure of reference point integrality index, get the reference value of 25th/90th fractile as this integrality index.At last, with the phytoplankton integrality of reflection reference point, animal plankton integrality and the addition of physics and chemistry integrality reference value equal weight, the ecology that obtains reflecting ecological integrality is with reference to aggregative index.
3, basin water Environmental ecology benchmark technological frame
The formulation flow process of basin water Environmental ecology benchmark is as shown in Figure 4.
The technology path that basin water Environmental ecology benchmark is formulated is illustrated in fig. 5 shown below.The technological frame that basin water Environmental ecology benchmark is formulated is illustrated in fig. 6 shown below.
4, system of selection of basin water environment RP and technology
All need select suitable RP to every type of water body.RP confirm to mainly contain following four kinds of methods: 1. historical data is estimated; 2. reference point investigation sampling; 3. model prediction; 4. expert consulting.Every kind of method all has its advantage and shortcoming (table 1), therefore usually need unite and use this several method.
Four kinds of methods that table 1 is set up RP compare
Reference point is used to confirm the reference state of water body, thereby makes the ecological reference value of water body.Therefore the selection of reference point must be careful.Reference point refers to be without prejudice or receives minimising damage and to the representative specified place of biology integrality of this water body or contiguous water body, and reference point should be selected in the water body the point near nature.In the selection course of reference point, should follow two principles:
A, receive human interference minimum (Minimal Impairment)
Reference point is because of choosing the place that not disturbed by human activity, but real undisturbed reference point is difficult to find in concrete water body.Therefore in fact usually choose and receive human place of disturbing minimum as reference point.
B, representative (Representativeness)
Selected reference point must be able to be represented the optimum condition of water body survey area.
On the basis of water body habitat survey and evaluation,, choose reference point according to least interference and representational principle.But in fact some water body receives human interference very big, and ecologic environment differs bigger with the state of " nature ", does not therefore have suitable reference point to select, and at this time can adopt the method for ecological model.The technology path of confirming reference state is as shown in Figure 7.
5, basin water Environmental ecology reference index standards of grading
Table 2 basin water Environmental ecology reference index standards of grading
Description of drawings:
Fig. 1 basin water Environmental ecology benchmark recommended value computing method; Fig. 2 carries out subregion with 95 or 25 fractiles to the distributed area of reference point; Three kinds of different assignment methods of Fig. 3; Fig. 4 basin water Environmental ecology reference system constant current journey; Fig. 5 basin water Environmental ecology benchmark is formulated technology path; Fig. 6 formulates the technology path that technological frame Fig. 7 selects reference state based on planktonic basin water Environmental ecology benchmark.
Embodiment:
1. confirm basin water Environmental ecology benchmark reference point (Reference Sites; RS), physics and chemistry integrality index (Index of Water Integrity; IWI), phytoplankton integrality index (Index of Plankton Integrity; IPI), animal plankton integrality index (Index of Zooplankton Integrity, IZI);
2. each integrality index BOX distribution plan of reference point;
3. as shown in table 2, according to 5%, 25%, 75%, 95% being three values intervals, and each integrality desired value of RS is carried out assignment by interval of living in to the numeric distribution scope division among the BOX figure;
4. adopt each the ecological reference index score addition of equal weight method, obtain reflecting IWI, the IPI of each RS, the mark of IZI RS;
5. will reflect IWI, IPI, the addition of IZI reference value equal weight of RS, obtain ecological integrality index (Index of Ecological Integrity, IEI). 6., get the ecological reference value of 90 fractiles as this waters again according to the BOX of IEI figure.

Claims (2)

1. ecological reference value is based on the response of China's plankton community to ambient pressure variations, in conjunction with physical and chemical factor, adopts composite index law (Multimeric Index) to calculate, and the present invention realizes through following technical scheme:
(1) notion of basin water Environmental ecology benchmark and characterizing method
Basin water Environmental ecology benchmark is to be used to describe satisfy to specify the hydrobiont purposes, and has the description type language or the numerical value of 26S Proteasome Structure and Function of the aquatic ecosystem of ecological integrality.Its characterizing method comprises the ecological benchmark (Narritative Ecocriteria) of description type and two kinds of methods of the ecological benchmark (Numeric Ecocriteria) of numeric type.
The ecological benchmark of description type: adopt descriptive language that the ecological integrality that should satisfy the basin water environment of specifying the hydrobiont purposes is described.
The ecological benchmark of numeric type: adopt the method for numerical value that the ecological integrality that should satisfy the basin water environment of specifying the hydrobiont purposes is described.
RP (Reference Sites, RS):, embodied water body at " nature " state that does not receive under mankind's activity or the disturbed condition in order to describe the ecological characteristic that is without prejudice in the basin or receives the minimising damage water body.Selecting suitable water environment reference state is the key of confirming aquatic attitude benchmark.
(Index of Plankton Integrity, IPI): index such as the kind through phytoplankton, biomass, diversity characterizes the state of phytoplankton structure and function to phytoplankton integrality index.
(Index of Zooplankton Integrity, IZI): index such as the kind through animal plankton, biomass, diversity characterizes the state of float thing structure of community and function to animal plankton integrality index.
Physics and chemistry integrality index (Index of Water Integrity, IWI):, characterize the state that decreases water body through the tolerance of chemistry and physical attribute.
(Index of Ecological Integrity, IEI): the tolerance through chemistry, physics and biological attribute characterizes the not state of damaged ecosystem to ecological integrality index.
(2) computing method of basin water Environmental ecology benchmark recommended value
Composite index law is that the concrete steps of the ecological benchmark of calculating watershed water environment are following:
1. obtain each reference variable Box figure of determined reference point, adopt the 95th/25th fractile to divide three/four intervals, the monitor value of reference point with the interval that is subordinate to that Box figure relatively obtains this each reference variable of reference point, is worth accordingly.
Can adopt 95th fractile or 25th fractile respectively is that bounded is built the distributive province of reference point and divided.During when the undermined less of the reference point of selecting or relatively near state of nature; Can select the 25th fractile as bounded; Far away or comprise underminedly greatly the time when reference point of selecting and state of nature gap, can select the 95th fractile as bounded.
2. the assignment of the reference variable of each reference point is carried out the equal weight addition, obtain the integrality index of this reference point.All reference variables of each reference point can obtain assignment after can comparing through the Box figure with all reference points, adopt the equal weight addition, can obtain a comprehensive integrality exponential quantity of each reference point.
3. according to the Box figure of reference point integrality index, get the reference value of 25th/90th fractile as this integrality index.At last, with the phytoplankton integrality of reflection reference point, animal plankton integrality and the addition of physics and chemistry integrality reference value equal weight, the ecology that obtains reflecting ecological integrality is with reference to aggregative index.
(3) basin water Environmental ecology benchmark technological frame
1. confirm basin water Environmental ecology benchmark reference point (Reference Sites; RS), physics and chemistry integrality index (Index of Water Integrity; IWI), phytoplankton integrality index (Index of Plankton Integrity; IPI), animal plankton integrality index (Index of Zooplankton Integrity, IZI);
2. each integrality index BOX distribution plan of reference point;
3. be the numeric distribution scope division among the BOX figure three values intervals according to 5%, 25%, 75%, 95%, and each integrality desired value of RS is carried out assignment by interval of living in;
4. adopt each the ecological reference index score addition of equal weight method, obtain reflecting IWI, the IPI of each RS, the mark of IZI RS;
5. will reflect IWI, IPI, the addition of IZI reference value equal weight of RS, obtain ecological integrality index (Index of Ecological Integrity, IEI);
6. again according to the BOX figure of IEI, get the ecological reference value of 90 fractiles as this waters.
(4) system of selection of basin water environment reference state and technology
All need select suitable RP to every type of water body.RP confirm to mainly contain following four kinds of methods: 1. historical data is estimated; 2. reference point investigation sampling; 3. model prediction; 4. expert consulting.
Reference point is used to confirm the reference state of water body, thereby makes the ecological reference value of water body.Therefore the selection of reference point must be careful.Reference point refers to be without prejudice or receives minimising damage and to the representative specified place of biology integrality of this water body or contiguous water body, and reference point should be selected in the water body the point near nature.In the selection course of reference point, should follow two principles:
A, receive human interference minimum (Minimal Impairment)
Reference point is because of choosing the place that not disturbed by human activity, but real undisturbed reference point is difficult to find in concrete water body.Therefore in fact usually choose and receive human place of disturbing minimum as reference point.
B, representative (Representativeness)
Selected reference point must be able to be represented the optimum condition of water body survey area.
On the basis of water body habitat survey and evaluation,, choose reference point according to least interference and representational principle.But in fact some water body receives human interference very big, and ecologic environment differs bigger with the state of " nature ", does not therefore have suitable reference point to select, and at this time can adopt the method for ecological model.
5, basin water Environmental ecology reference index standards of grading
Table 1 basin water Environmental ecology reference index standards of grading
2. described ecological reference value computing method that change based on plankton community of claim 1 can be used for the ecological reference value in Calculation of River, lake, reservoir and river mouth.
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CN111289719A (en) * 2020-04-02 2020-06-16 南开大学 Method for determining ecological reference threshold of total nitrogen water
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Publication number Priority date Publication date Assignee Title
CN103390092A (en) * 2012-05-07 2013-11-13 上海勘测设计研究院 Urban river ecological evaluation model and evaluation method
CN103793588A (en) * 2012-10-29 2014-05-14 崔文衡 Infant sport talent indexation and grade classifying method
CN103218514A (en) * 2013-03-21 2013-07-24 集美大学 Method for determining degree of degeneration of porphyra haitanensis algae farm
CN103218514B (en) * 2013-03-21 2016-01-13 集美大学 A kind of porphyra haitanensis algae field degree of degeneration assay method
CN103336101A (en) * 2013-06-07 2013-10-02 中国环境科学研究院 Method for deriving water-quality reference values for human health protection and water-quality safety evaluation method
CN103336889A (en) * 2013-06-07 2013-10-02 中国环境科学研究院 Aquatic life water quality standard value derivation method and water quality safety evaluation method
CN106814174A (en) * 2015-11-27 2017-06-09 南开大学 Dissolved oxygen water zoology safety verification method based on pressure-response relation
CN105738591A (en) * 2016-02-24 2016-07-06 中国环境科学研究院 Water quality reference derivation method for selenium and water quality safety evaluation method
CN105738591B (en) * 2016-02-24 2017-05-31 中国环境科学研究院 The water quality benchmark derivation method and water quality security evaluation method of selenium
US10900786B2 (en) 2017-03-31 2021-01-26 International Business Machines Corporation Refining an ecological niche model
CN107436346A (en) * 2017-08-02 2017-12-05 江苏省环境监测中心 A kind of river Ecology health assessment technology method
CN108562708A (en) * 2018-04-18 2018-09-21 中国科学院南京地理与湖泊研究所 Evaluation of river water quality method based on phytoplankton Perfection Index
CN109711615A (en) * 2018-12-24 2019-05-03 温州大学 The acute and chronic of surface water non-steroidal estrogenic predicts the calculation method without effective concentration
CN111289719A (en) * 2020-04-02 2020-06-16 南开大学 Method for determining ecological reference threshold of total nitrogen water

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