CN115598032A - Method and device for estimating transfer conversion efficiency of biogenic substances in shore zone of shallow lake - Google Patents
Method and device for estimating transfer conversion efficiency of biogenic substances in shore zone of shallow lake Download PDFInfo
- Publication number
- CN115598032A CN115598032A CN202211057030.7A CN202211057030A CN115598032A CN 115598032 A CN115598032 A CN 115598032A CN 202211057030 A CN202211057030 A CN 202211057030A CN 115598032 A CN115598032 A CN 115598032A
- Authority
- CN
- China
- Prior art keywords
- probe
- water
- biogenic
- conversion efficiency
- flux
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000126 substance Substances 0.000 title claims abstract description 93
- 230000000035 biogenic effect Effects 0.000 title claims abstract description 91
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012546 transfer Methods 0.000 title claims abstract description 7
- 239000000523 sample Substances 0.000 claims abstract description 125
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 230000004907 flux Effects 0.000 claims abstract description 60
- 230000035699 permeability Effects 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 239000002689 soil Substances 0.000 claims abstract description 7
- 238000012512 characterization method Methods 0.000 claims description 20
- 238000005070 sampling Methods 0.000 claims description 20
- 230000005012 migration Effects 0.000 claims description 18
- 238000013508 migration Methods 0.000 claims description 18
- 239000003673 groundwater Substances 0.000 claims description 17
- 238000013480 data collection Methods 0.000 claims description 12
- 238000012937 correction Methods 0.000 claims description 10
- 238000007405 data analysis Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000002352 surface water Substances 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Theoretical Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Hydrology & Water Resources (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The application discloses a method and a device for estimating the transfer and conversion efficiency of biogenic substances in shore zones of shallow lakes. The method can comprise the following steps: determining an area for underwater measurement in a shore zone, and measuring the porosity and permeability coefficient of soil in the selected area; inserting the water isolating device into the substrate of the selected area, and acquiring probe data according to the multifunctional probe; calculating the flow velocity of the water body according to the porosity, the permeability coefficient and the probe data; calculating theoretical biogenic substance flux according to the water body flow velocity and the probe data; and calculating the characteristic parameters of the conversion efficiency of the biogenic substance according to the theoretical biogenic substance flux and the actually measured biogenic substance flux. The method does not destroy the original ecology, is simple to operate and has high estimation efficiency.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to a method and a device for estimating the migration and conversion efficiency of biogenic substances in shore zones of shallow lakes.
Background
The shore zone is a transition zone of a river lake ecosystem and a land ecosystem, has high microbial activity and frequent biochemical reaction, and provides habitats and nutrient sources for a plurality of organisms. The transverse flux and the main flux direction of the water body and the substances in the shore zone are measured and estimated, and the measurement and estimation of the biogenic substance flux are the basis for researching the ecological function of the shore zone substrate and providing a reasonable scheme for repairing the shore zone substrate. In the prior art, due to the lack of the limitation of a water-resisting device, the error is large in the estimation of the flux of water body migration; the lack of data collection and analysis terminals is inefficient in data collection and computation.
Therefore, there is a need to develop a method and a device for estimating the transfer and conversion efficiency of biogenic substances in the shore of shallow lakes.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.
Disclosure of Invention
The invention provides a method and a device for estimating the migration and conversion efficiency of biogenic substances in shore zones of shallow lakes, which do not destroy original ecology, are simple to operate and have high estimation efficiency.
In a first aspect, an embodiment of the present disclosure provides a method for estimating a migration and conversion efficiency of biogenic substances in a shore zone of a shallow lake, including:
determining an area for underwater measurement in a shore zone, and measuring the porosity and permeability coefficient of soil in the selected area;
inserting the water isolating device into the substrate of the selected area, and acquiring probe data according to the multifunctional probe;
calculating the water flow rate according to the porosity, the permeability coefficient and the probe data;
calculating theoretical biogenic substance flux according to the water body flow velocity and the probe data;
and calculating a biogenic substance conversion efficiency characterization parameter according to the theoretical biogenic substance flux and the actually measured biogenic substance flux.
Preferably, inserting the riser into the base of the selected area, the obtaining probe data from the multi-function probe comprising:
inserting the water-stop device into the substrate of the selected area, and drilling a sampling hole in the water-stop device at the shore;
respectively inserting two multifunctional probes into a water body in the water-resisting device and a water body in the sampling hole;
obtaining the probe data from the multi-function probe.
Preferably, the probe data includes a probe water level, a probe distance, and a concentration measured by the probe.
Preferably, the water flow rate is calculated by equation (1):
wherein v is the horizontal flow velocity of shallow groundwater, K is the permeability coefficient, theta is the porosity, H 0 Is the water level of the underwater probe H 1 Is the water level at the shore and L is the distance between the probes.
Preferably, the theoretical biogenic substance flux is calculated by equation (2) as:
q th ＝v(C 0 -C 1 ) (2)
wherein q is th As theoretical biogenic substance flux, v is the transverse flow velocity of shallow groundwater, C 0 For initial concentration, C, measured by underwater probe 1 The initial concentration measured for the shore probe.
Preferably, the measured flux of biogenic matter is calculated by equation (3) as:
wherein q is re To actually measure the flux of the biogenic substance, t is the elapsed time of the measurement process, Δ C 0 The concentration variation of the underwater probe after the time t.
Preferably, the biogenic substance conversion efficiency characterization parameter is calculated by formula (4):
R＝k 1 (k 0 q re -q th ) (4)
wherein R is a characterization parameter of the conversion efficiency of the source substance, k 0 For correction coefficients of the measured flux, k 1 The coefficient is a dimensionless correction coefficient of the characterization parameter of the conversion efficiency of the biogenic substances.
In a second aspect, an embodiment of the present disclosure further provides an estimation device for migration and conversion efficiency of biogenic substances in a shore zone of a shallow lake, including a water isolation device, a multifunctional probe, a data transmission line, and a data collection and analysis terminal:
a scale is arranged on the inner wall of the side face of the water-stop device, and a sampling hole is drilled in the water-stop device on the bank side;
the multifunctional probe is respectively inserted into a water body in the water-resisting device and a water body in the sampling hole and is connected with the data collection and analysis terminal through the data transmission line;
the data collection and analysis terminal performs the following steps:
acquiring probe data according to the multifunctional probe;
calculating the flow rate of the water body according to the porosity, the permeability coefficient and the probe data;
calculating theoretical biogenic substance flux according to the water body flow velocity and the probe data;
and calculating a biogenic substance conversion efficiency characterization parameter according to the theoretical biogenic substance flux and the actually measured biogenic substance flux.
Preferably, inserting the water-stop device into the base of the selected region, the obtaining probe data from the multi-function probe comprising:
inserting the water-stop device into the substrate of the selected area, and drilling a sampling hole in the water-stop device at the shore;
respectively inserting two multifunctional probes into a water body in the water-resisting device and a water body in a sampling hole;
obtaining the probe data from the multi-function probe.
Preferably, the probe data includes a probe water level, a probe distance, and a concentration measured by the probe.
Preferably, the water flow rate is calculated by equation (1):
wherein v is the horizontal flow velocity of shallow groundwater, K is the permeability coefficient, theta is the porosity, H 0 Is the water level of the underwater probe H 1 Is the water level at the shore and L is the distance between the probes.
Preferably, the theoretical biogenic substance flux is calculated by equation (2) as:
q th ＝v(C 0 -C 1 ) (2)
wherein q is th For theoretical biogenic substance flux, v is the lateral flow velocity of shallow groundwater, C 0 For initial concentration, C, measured by underwater probe 1 The initial concentration measured for the shore probe.
Preferably, the measured flux of biogenic matter is calculated by equation (3) as:
wherein q is re To actually measure the flux of the biogenic substance, t is the elapsed time of the measurement process, Δ C 0 The concentration variation of the underwater probe after the time t.
Preferably, the biogenic substance conversion efficiency characterization parameter is calculated by formula (4):
R＝k 1 (k 0 q re -q th ) (4)
wherein R is a characterization parameter of the conversion efficiency of the source substance, k 0 For correction coefficients of the measured flux, k 1 The coefficient is a dimensionless correction coefficient of the characterization parameter of the conversion efficiency of the biogenic substances.
The method and apparatus of the present invention have other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts.
Fig. 1 is a flow chart showing steps of a shallow lake shore area biogenic substance migration and conversion efficiency estimation method according to an embodiment of the invention.
Fig. 2a, 2b show a shore band flow field diagram with lake levels below groundwater level and lake levels above groundwater level, respectively, according to an embodiment of the invention.
Fig. 3 is a schematic diagram of a shallow lake shore-zone biogenic substance migration and conversion efficiency estimation device according to an embodiment of the invention.
Description of reference numerals:
1. a water isolation device; 2. a multifunctional probe; 3. a data transmission line; 4. a data collection and analysis terminal; 5. and (4) a scale.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein.
To facilitate understanding of the aspects of the embodiments of the present invention and their effects, two specific application examples are given below. It will be understood by those skilled in the art that this example is merely for the purpose of facilitating an understanding of the present invention and that any specific details thereof are not intended to limit the invention in any way.
Example 1
Fig. 1 is a flow chart showing steps of a shallow lake shore area biogenic substance migration and conversion efficiency estimation method according to an embodiment of the invention.
As shown in fig. 1, the method for estimating the transfer and conversion efficiency of biogenic substances in the shore zone of a shallow lake comprises the following steps: step 101, determining an area for underwater measurement in a shore zone, and measuring the porosity and permeability coefficient of soil in the selected area; step 102, inserting the water-resisting device into the substrate of the selected area, and obtaining probe data according to the multifunctional probe; 103, calculating the flow rate of the water body according to the porosity, the permeability coefficient and the probe data; 104, calculating theoretical biological source substance flux according to the water body flow velocity and the probe data; and 105, calculating a biogenic substance conversion efficiency characterization parameter according to the theoretical biogenic substance flux and the actually measured biogenic substance flux.
In one example, inserting a riser into a basement of a selected area, obtaining probe data from a multi-function probe includes:
inserting a water stop device into the substrate of the selected area, and drilling a sampling hole in the water stop device at the bank;
respectively inserting the two multifunctional probes into a water body in the water isolating device and a water body in the sampling hole;
probe data is obtained from the multifunction probe.
In one example, the probe data includes probe water level, probe distance, and concentration measured by the probe.
In one example, the water flow rate is calculated by equation (1):
wherein v is the transverse flow velocity of shallow groundwater, namely transverse migration, K is the permeability coefficient, theta is the porosity, H 0 Is the water level of the underwater probe H 1 Is the water level at the shore and L is the distance between the probes.
In one example, the theoretical biogenic matter flux is calculated by equation (2) as:
q th ＝v(C 0 -C 1 ) (2)
wherein q is th As theoretical biogenic substance flux, v is the transverse flow velocity of shallow groundwater, C 0 For initial concentration, C, measured by underwater probe 1 The initial concentration measured for the shore probe.
In one example, the measured flux of the biogenic matter is calculated by equation (3) as:
wherein q is re To measure the flux of the biogenic substance, t is the elapsed time of the measurement process, Δ C 0 The concentration variation of the underwater probe after the time t.
In one example, a biogenic substance conversion efficiency characterizing parameter is calculated by equation (4):
R＝k 1 (k 0 q re -q th ) (4)
wherein R is a characterization parameter of the conversion efficiency of the source substance, k 0 For correction coefficients of the measured flux, k 1 The coefficient is a non-dimensionalized correction coefficient of the characterization parameter of the conversion efficiency of the biogenic substances.
Fig. 2a, 2b show a shore band flow field diagram with a lake level below the groundwater level and a lake level above the groundwater level, respectively, according to an embodiment of the invention.
Specifically, as shown in fig. 2a and 2b, substances in the shore zone mainly migrate in the transverse direction, and when the lake level is lower than the ground water level, the direction is from the shore zone to the lake, and when the lake level is higher than the ground water level, the direction is from the lake to the shore zone.
Determining an area for underwater measurement in a coastal zone, and measuring the porosity and permeability coefficient of soil in the selected area; inserting a water-stop device into the substrate of the selected area, and drilling a sampling hole in the water-stop device at the bank; the two multifunctional probes are respectively inserted into a water body in the water isolating device and a water body in the sampling hole, and the multifunctional probes can be replaced according to actual conditions so as to measure the flux of different substances; acquiring probe data including probe water level, probe distance and concentration measured by the probe according to the multifunctional probe; calculating the flow velocity of the water body according to the porosity, the permeability coefficient and the probe data by a formula (1); calculating theoretical biogenic substance flux according to the water body flow velocity and the probe data through a formula (2); and (4) calculating the actually measured biogenic substance flux through a formula (3), and calculating a biogenic substance conversion efficiency characterization parameter through a formula (4) according to the theoretical biogenic substance flux and the actually measured biogenic substance flux.
Example 2
The invention discloses a device for estimating the migration and conversion efficiency of biogenic substances in a shallow lake shore zone, which comprises a water isolating device, a multifunctional probe, a data transmission line and a data collecting and analyzing terminal, wherein the water isolating device comprises:
a scale is arranged on the inner wall of the side face of the water-stop device, and a sampling hole is drilled in the water-stop device on the bank side;
the multifunctional probe is respectively inserted into a water body in the water isolating device and a water body in the sampling hole and is connected with the data collecting and analyzing terminal through a data transmission line;
the data collection and analysis terminal performs the following steps:
acquiring probe data according to the multifunctional probe;
calculating the flow rate of the water body according to the porosity, the permeability coefficient and the probe data;
calculating theoretical biogenic substance flux according to the water body flow velocity and the probe data;
and calculating the characteristic parameters of the conversion efficiency of the biogenic substance according to the theoretical biogenic substance flux and the actually measured biogenic substance flux.
In one example, inserting a riser into a basement of a selected area, obtaining probe data from a multi-function probe includes:
inserting a water-stop device into the substrate of the selected area, and drilling a sampling hole in the water-stop device at the bank;
respectively inserting the two multifunctional probes into a water body in the water isolating device and a water body in the sampling hole;
probe data is obtained from the multifunction probe.
In one example, the probe data includes probe water level, probe distance, and concentration measured by the probe.
In one example, the water flow rate is calculated by equation (1):
wherein v is the transverse flow velocity of shallow groundwater, namely transverse migration, K is the permeability coefficient, theta is the porosity, H 0 Is the water level of the underwater probe H 1 Is the water level at the shore and L is the distance between the probes.
In one example, the theoretical biogenic matter flux is calculated by equation (2) as:
q th ＝v(C 0 -C 1 ) (2)
wherein q is th For theoretical biogenic substance flux, v is the lateral flow velocity of shallow groundwater, C 0 For initial concentration, C, measured by underwater probe 1 The initial concentration measured for the shore probe.
In one example, the measured flux of the biogenic matter is calculated by equation (3) as:
wherein q is re To actually measure the flux of the biogenic substance, t is the elapsed time of the measurement process, Δ C 0 The concentration variation of the underwater probe after the time t.
In one example, a biogenic substance conversion efficiency characterizing parameter is calculated by equation (4):
R＝k 1 (k 0 q re -q th ) (4)
wherein R is a characterization parameter of the conversion efficiency of the source substance, k 0 For correction of measured flux, k 1 The coefficient is a dimensionless correction coefficient of the characterization parameter of the conversion efficiency of the biogenic substances.
FIG. 3 illustrates a block diagram of a shore band biogenic matter conversion efficiency estimation apparatus, in accordance with an embodiment of the present invention.
Specifically, as shown in fig. 3, the device for estimating the biogenic substance migration and conversion efficiency in the shore zone of the shallow lake comprises a water isolation device 1, a multifunctional probe 2, a data transmission line 3 and a data collection and analysis terminal 4:
the water isolating device 1 is sealed and waterproof on the front, back, left and right sides, the upper and lower sides are open, and the inner wall of the side surface is provided with a scale 5, so that the distance between probes can be conveniently measured; drilling a sampling hole in a shore water-resisting device 1, wherein the shore drilling is below a groundwater level line; the underwater intercepting water surface area in the installation process of the water resisting device 1 is preferably less, is preferably 1/10 of the area of the intercepting soil body on the right shore side, part of the underwater intercepting soil body needs to be embedded into bottom mud, and the underwater intercepting water cannot submerge the water surface, so that the complete isolation of the inside surface water and the outside surface water is ensured.
The multifunctional probe 2 is respectively inserted into a water body in the water isolating device 1 and a water body in the sampling hole, is arranged below the water surface, has the functions of measuring the water level and specifying the concentration of a biological source substance, and is connected with a data collecting and analyzing terminal 4 through a data transmission line 3; the multifunctional probe 2 can be replaced according to actual conditions so as to measure the flux of different substances.
The data collection and analysis terminal 4 performs the following steps:
acquiring probe data including probe water level, probe distance and concentration measured by the probe according to the multifunctional probe 2;
calculating the flow rate of the water body according to the porosity, the permeability coefficient and the probe data through a formula (1);
calculating theoretical biogenic substance flux through a formula (2) according to the water body flow velocity and probe data;
and (3) calculating the actually measured biogenic substance flux through a formula (3), and calculating a biogenic substance conversion efficiency characterization parameter through a formula (4) according to the theoretical biogenic substance flux and the actually measured biogenic substance flux.
It will be appreciated by persons skilled in the art that the above description of embodiments of the invention is for the purpose of illustrating the benefits of embodiments of the invention only, and is not intended to limit embodiments of the invention to any examples given.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (8)
1. A method for estimating the transfer and conversion efficiency of biogenic substances in shore zones of shallow lakes is characterized by comprising the following steps:
determining an area for underwater measurement in a coastal zone, and measuring the porosity and permeability coefficient of soil in the selected area;
inserting the water isolating device into the substrate of the selected area, and acquiring probe data according to the multifunctional probe;
calculating the water flow rate according to the porosity, the permeability coefficient and the probe data;
calculating theoretical biogenic substance flux according to the water body flow velocity and the probe data;
and calculating a biogenic substance conversion efficiency characterization parameter according to the theoretical biogenic substance flux and the actually measured biogenic substance flux.
2. The method of estimating biogenic substance migration and conversion efficiency of a shallow lake shore zone according to claim 1, wherein inserting a water isolation device into the substrate of the selected zone, and obtaining probe data from the multi-function probe comprises:
inserting the water-stop device into the substrate of the selected area, and drilling a sampling hole in the water-stop device at the shore;
respectively inserting two multifunctional probes into a water body in the water-resisting device and a water body in the sampling hole;
obtaining the probe data from the multi-function probe.
3. The shallow lake shore area biogenic matter migration and conversion efficiency estimation method of claim 2, wherein the probe data comprises probe water level, probe distance and concentration measured by the probe.
4. The shallow lake shore area biogenic matter transfer efficiency estimation method according to claim 3, wherein the water body flow rate is calculated by formula (1):
wherein v is the horizontal flow velocity of shallow groundwater, K is the permeability coefficient, theta is the porosity, H 0 Is the water level of the underwater probe H 1 Is the water level at the shore and L is the distance between the probes.
5. The method for estimating biogenic substance migration and conversion efficiency on shore zones of shallow lakes according to claim 4, wherein the theoretical biogenic substance flux is calculated by the formula (2) as follows:
q th ＝v(C 0 -C 1 ) (2)
wherein q is th For theoretical biogenic substance flux, v is the lateral flow velocity of shallow groundwater, C 0 For initial concentration, C, measured by underwater probe 1 The initial concentration measured for the shore probe.
6. The method for estimating biogenic substance migration and conversion efficiency on shore zones of shallow lakes according to claim 5, wherein the measured biogenic substance flux is calculated by formula (3) as follows:
wherein q is re To measure the flux of the biogenic substance, t is the elapsed time of the measurement process, Δ C 0 The concentration variation of the underwater probe after the time t.
7. The shallow water lake shore zone biogenic substance migration and conversion efficiency estimation method according to claim 6, wherein the biogenic substance conversion efficiency characterization parameter is calculated by formula (4):
R＝k 1 (k 0 q re -q th ) (4)
wherein R is a characterization parameter of the conversion efficiency of the source substance, k 0 For correction of measured flux, k 1 The coefficient is a non-dimensionalized correction coefficient of the characterization parameter of the conversion efficiency of the biogenic substances.
8. The utility model provides a shallow water lake shore area biogenic substance migration conversion efficiency estimation device which characterized in that includes water proof device, multi-functional probe, data transmission line, data collection analysis terminal:
a scale is arranged on the inner wall of the side surface of the water-stop device, and a sampling hole is drilled in the water-stop device on the bank;
the multifunctional probe is respectively inserted into a water body in the water-resisting device and a water body in the sampling hole and is connected with the data collection and analysis terminal through the data transmission line;
the data collection and analysis terminal performs the following steps:
acquiring probe data according to the multifunctional probe;
calculating the water flow rate according to the porosity, the permeability coefficient and the probe data;
calculating theoretical biogenic substance flux according to the water body flow velocity and the probe data;
and calculating a biogenic substance conversion efficiency characterization parameter according to the theoretical biogenic substance flux and the actually measured biogenic substance flux.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211057030.7A CN115598032B (en) | 2022-08-30 | 2022-08-30 | Method and device for estimating migration and conversion efficiency of shoreline source substances in shallow lake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211057030.7A CN115598032B (en) | 2022-08-30 | 2022-08-30 | Method and device for estimating migration and conversion efficiency of shoreline source substances in shallow lake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115598032A true CN115598032A (en) | 2023-01-13 |
| CN115598032B CN115598032B (en) | 2023-09-22 |
Family
ID=84843724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211057030.7A Active CN115598032B (en) | 2022-08-30 | 2022-08-30 | Method and device for estimating migration and conversion efficiency of shoreline source substances in shallow lake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115598032B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002356834A (en) * | 2001-06-04 | 2002-12-13 | Takuwa Corp | Earth monitoring system in sediment system |
| CN102608273A (en) * | 2012-03-23 | 2012-07-25 | 重庆大学 | Method for collecting underwater bubbles and method for monitoring underwater bubble flux under hydrodynamic conditions |
| CN108007440A (en) * | 2017-11-27 | 2018-05-08 | 天津科技大学 | A kind of method of in site measurement nutritive salt vertical flux |
| CN108051342A (en) * | 2017-12-12 | 2018-05-18 | 云南省农业科学院农业环境资源研究所 | The simple computation method of lake offshore farmland pollution object flux of lake inflow under a kind of underground water-lake water interaction |
| CN108320654A (en) * | 2018-01-18 | 2018-07-24 | 河海大学 | Dyke duty status evolution Feature observation device and operation method under hydro powered |
| CN111723505A (en) * | 2020-06-19 | 2020-09-29 | 中国水利水电科学研究院 | Basin quality of water yield monitoring system |
-
2022
- 2022-08-30 CN CN202211057030.7A patent/CN115598032B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002356834A (en) * | 2001-06-04 | 2002-12-13 | Takuwa Corp | Earth monitoring system in sediment system |
| CN102608273A (en) * | 2012-03-23 | 2012-07-25 | 重庆大学 | Method for collecting underwater bubbles and method for monitoring underwater bubble flux under hydrodynamic conditions |
| CN108007440A (en) * | 2017-11-27 | 2018-05-08 | 天津科技大学 | A kind of method of in site measurement nutritive salt vertical flux |
| CN108051342A (en) * | 2017-12-12 | 2018-05-18 | 云南省农业科学院农业环境资源研究所 | The simple computation method of lake offshore farmland pollution object flux of lake inflow under a kind of underground water-lake water interaction |
| CN108320654A (en) * | 2018-01-18 | 2018-07-24 | 河海大学 | Dyke duty status evolution Feature observation device and operation method under hydro powered |
| CN111723505A (en) * | 2020-06-19 | 2020-09-29 | 中国水利水电科学研究院 | Basin quality of water yield monitoring system |
Non-Patent Citations (2)
| Title |
|---|
| GUANGQIU JIN 等: "Hyporheic flow under periodic bed forms influenced by low‐density gradients", GEOPHYSICAL RESEARCH LETTERS, vol. 38, pages 1 - 6 * |
| 金光球 等: "平原河流水沙界面生源物质迁移转化过程及 水环境调控的研究进展", vol. 30, no. 3, pages 434 - 444 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115598032B (en) | 2023-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Taniguchi et al. | Spatial and temporal distributions of submarine groundwater discharge rates obtained from various types of seepage meters at a site in the Northeastern Gulf of Mexico | |
| Berg et al. | Oxygen uptake by aquatic sediments measured with a novel non-invasive eddy-correlation technique | |
| Berelson et al. | Benthic nutrient recycling in Port Phillip bay, Australia | |
| Percuoco et al. | Nutrient release from the sediments of the Great Bay Estuary, NH USA | |
| US8825430B2 (en) | Differential pressure systems and methods for measuring hydraulic parameters across surface water-aquifer interfaces | |
| Tse et al. | Estimation of submarine groundwater discharge in plover cove, Tolo harbour, Hong Kong by 222Rn | |
| Garcia-Solsona et al. | Estimating submarine groundwater discharge around Isola La Cura, northern Venice Lagoon (Italy), by using the radium quartet | |
| Oliveira et al. | Reconnaissance of submarine groundwater discharge at Ubatuba coast, Brazil, using 222Rn as a natural tracer | |
| Ibánhez et al. | Porewater nitrate profiles in sandy sediments hosting submarine groundwater discharge described by an advection–dispersion-reaction model | |
| Martin et al. | Enhanced submarine ground water discharge from mixing of pore water and estuarine water | |
| Martin et al. | Monitoring well responses to karst conduit head fluctuations: Implications for fluid exchange and matrix transmissivity in the Floridan aquifer | |
| CN110647650B (en) | Method and system for identifying sea lake environment of offshore basin | |
| Rocha et al. | Benthic nitrate biogeochemistry affected by tidal modulation of Submarine Groundwater Discharge (SGD) through a sandy beach face, Ria Formosa, Southwestern Iberia | |
| Brenner et al. | Disequilibrium between 226Ra and supported 210Pb in a sediment core from a shallow Florida lake | |
| CN115598032B (en) | Method and device for estimating migration and conversion efficiency of shoreline source substances in shallow lake | |
| CN102435540A (en) | Measurement system and method for permeability coefficient of shallow-layer sand soil | |
| Ridd et al. | Water, salt and nutrient fluxes of tropical tidal salt flats | |
| ANIONS | Estimates of nutrient loading by ground-water discharge into the Lynch Cove area of Hood Canal, Washington | |
| Lewandowski et al. | From submarine to lacustrine groundwater discharge | |
| Zamora | Estimating rates of exchange across the sediment/water interface in the lower Merced River, CA | |
| Swarzenski¹ et al. | Submarine ground-water discharge in upper Indian River Lagoon, Florida | |
| Cai et al. | A multi-channel chemical sensor and its application in detecting hydrothermal vents | |
| CN202281742U (en) | System for measuring osmotic coefficient of superficial layer sandy soil | |
| Liu et al. | Estimating the submarine groundwater and nutrients discharge of Yellow River delta with cross-section method | |
| Dang et al. | Coastal flowing artesian wells and submarine groundwater discharge driven by tidal variation at TaiCOAST site in Taoyuan, Taiwan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |