A method for in situ and non-destructive determination of submerged plant biomass

A technology for submerged plants and biomass, which is applied in the direction of measuring devices, processing response signals of detection, instruments, etc., to achieve the effects of small estimation error, easy method and simple operation.

Active Publication Date: 2021-05-28
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No echo sounder has been used in the monitoring of submerged plant biomass at home and abroad

Method used

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  • A method for in situ and non-destructive determination of submerged plant biomass
  • A method for in situ and non-destructive determination of submerged plant biomass
  • A method for in situ and non-destructive determination of submerged plant biomass

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Experimental program
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Effect test

Embodiment 1

[0035]Taking the biomass of Shenshuang plant in a watery in Hangzhou as an example, the main community of the water plant is a bitter grass, black algae, and can be investigated by the method of the present invention to investigate the biomass of the water.

[0036]A method of analyzing a bioelectrical biomass of an ingenuctive, its steps are:

[0037](1) Fence water and set the section: Will the survey of Hangzhou West Lake a watery into 8 water samples, and labeled in order, the average area of ​​the water sample is 4000m.2, In the sample, the section design is performed, the section interval is 8m, and 3 sample points per sample, the water area is 38000m.2.

[0038](2) Determination of the semi-water plant characteristics: Navigate, the average motor speed is 1.5km / h, using the US Biosonics to produce portable echo detectors - MX to surround 8 samples, plant height, plants The determination of the cover is also a traditional deposit plant biomass investigation method. It is 30 × 47cm, w...

Embodiment 2

[0053]Investigate the biomass of Shenshuang plant in Wuhan Donghu as an example, the main community of the waters is goldfish algae, bitter grass, black algae, and can be investigated by the method of the present invention.

[0054]A method of analyzing a bioelectrical biomass of an ingenuctive, its steps are:

[0055](1) Fence waters and set the section: Will the survey of Wuhan Donghu a watery into 15 water samples, marked in order, and the average area of ​​water sample is 3300m.2In the sample, the section design is performed, and the cross-section interval is 10m, each sample 3 sampling points, and the water area is 50000m.2.

[0056](2) Determination of the parameters of Shenshui plant: Navigate, the average motor speed 1.8km / h, using the US Biosonics to produce portable echo detectors - MX to surround 15 samples, plant height, plants The determination of the cover is also a traditional deposit plant biomass investigation method. It is 30 × 47cm, which is 30 × 47cm, and grasping the d...

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Abstract

The invention discloses a method for measuring the biomass of submerged plants in situ without damage. The steps are: (1) fence the water area and set a section; (2) measure the characteristic parameters of the submerged plants: using an echo detector fixed on a boat Navigate along the section to measure the height of submerged plants in the water section of the quadrat; (3) calculate SPVI: export the results of various sections measured by the echo sounder; (4) establish a regression model; The distance weighted spatial interpolation method is used to perform spatial interpolation on the results derived from echo detection; (6) average the water depth, submerged plant height and coverage obtained by the inverse distance weighted method; (7) the water area or similar water areas in the future For the investigation of submerged plant biomass, the water depth, plant height and coverage of the water area are obtained through echo detection. The method is easy to operate, easy to operate, without damage in situ, and accurate in estimation, and is suitable for the investigation of submerged plants in shallow water bodies such as lakes.

Description

Technical field[0001]The present invention belongs to the field of lake water ecological surveys, and more particularly to a method of investigating its biomass in situ in situ in situ in situ, such as a water-water plant such as lake.Background technique[0002]The primary producer of Shenshui plant as a water ecosystem is an important part of the lake ecosystem, and is also an important basis for the water-based food chain. There is an irreplaceable role in the water ecosystem. The indigmatics of water in shallow water in lakes and other shallow water in lakes, their growth and development, and population structures can objectively reflect the environmental changes in water body. In a nutritious water body, the deposited plant by absorbing nutrients such as nitrogen, phosphorus in the water, controlling the abnormal proliferation of floating algae, adsorbing the particulate suspension in the water body, inhibiting the resuspension of the sediment, so that the lake maintains water st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04G01N29/44G06F30/20G06F17/18G06F111/10
CPCG01N29/04G01N29/4418G06F30/20
Inventor 刘碧云彭雪吴振斌蔺庆伟张义黄素珍张璐鄢文皓
Owner INST OF AQUATIC LIFE ACAD SINICA
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