A method for real-time online monitoring of karst carbon sink effect of aquatic plants
A technology for aquatic plants and karst carbon sinks, which is applied in testing water, measuring devices, instruments, etc., can solve the problems of large errors in the effect value of karst carbon sinks, inability to real-time online monitoring, and artificial measurement errors. The method is simple and the error is small. , the effect of simple operation
Inactive Publication Date: 2018-01-09
INST OF KARST GEOLOGY CAGS
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(4) HCO 3 - It is greatly affected by the environment, there are certain errors in the measurement, and it cannot be monitored online in real time, so the automatic sampler can only be used to take water samples, and then manually titrate
However, there are certain errors in human-made measurements, and people need to be present day and night to measure (the shorter the measurement interval, the more accurate the data), and the HCO in karst water 3 - Unstable and easy to decompose, so by calculating the HCO of the upper and lower reaches 3 - The value error of estimating the karst carbon sink effect of aquatic plants is extremely large
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[0055] The new method for real-time online monitoring of aquatic plant karst carbon sink effect of the present embodiment comprises the following steps:
[0056] Step 1: Select the karst surface river section fed by the ocean-Zhaidi underground river system in Haiyang Township, Guilin, Guangxi. From 11:00 on September 10 to 15:00 on September 12, 2014, the YSI multi-parameter water quality analyzer was placed at the outlet of the underground river and the downstream of the surface river section, and the temperature T, conductivity Ec, and dissolved oxygen of the water body were recorded automatically. C, the recording interval is 5min, continuous monitoring day and night, the monitoring results are as follows Figure 1-3 As shown, the elevations of the above two monitoring points were recorded by hand-held GPS instruments as 238m and 205m respectively.
[0057] Step 2: Saturated dissolved oxygen calculation: First, use figure 1 Calculate the saturated dissolved oxygen concen...
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The invention discloses a new method for monitoring karst carbon sink effect of aquatic plants online in real time and belongs to the technical field of monitoring of karst carbon sink effect of aquatic plants. The method comprises six steps in total, according to characteristics of photosynthesis of the aquatic plants, dissolved oxygen closely related to the photosynthesis is taken as a monitoring index, a plant photosynthesis equation is utilized, amount of inorganic carbon fixed by the aquatic plants through the photosynthesis in karst water body is calculated, and accurate and real-time online monitoring on the karst carbon sink effect of the aquatic plants is realized.
Description
technical field [0001] The invention relates to a new method for monitoring the karst carbon sink effect of aquatic plants on-line in real time, and belongs to the technical field of monitoring the karst carbon sink effect of aquatic plants. Background technique [0002] At present, the water chemistry-flow method is mainly used for monitoring the karst carbon sink of aquatic plants, that is, by studying the HCO in the upper and lower reaches of the river. 3 - The concentration change difference is used to calculate the conversion rate of aquatic plants to karst carbon sinks. He Shiyi and others used the water chemistry-flow method to study the HCO in the upper and lower reaches of the Banzhai River in Guizhou 3 - Concentration change difference to calculate the conversion rate of aquatic plants to karst carbon sink (see He Shiyi, Kang Zhiqiang, Li Qingyan, et al. Application of high-resolution real-time monitoring technology in karst carbon sink estimation——Taking Banzha...
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IPC IPC(8): G01N33/18
CPCG01N33/186
Inventor 王培胡清菁白冰黄炳惠曹建华
Owner INST OF KARST GEOLOGY CAGS