Method for quickly obtaining total salt quantity and other ions in coastal reclamation area mud flat soil

Abstract

The invention discloses a method for quickly obtaining total salt quantity and other ions in coastal reclamation area mud flat soil. The method comprises: a first step, determining EC values of different soil layers of soil of a coastal reclamation area; a second step, substituting one of the EC values of the different soil layers of soil, determined in the first step, into a determination formula for total salt quantity of the corresponding soil layer of soil, calculating the total salt quantity of the soil layer, repeating the second step, and calculating the content of Na<+> and Cl<-> of the different soil layers of soil; a third step, determining the type of each soil layer of soil according to the total salt quantity of the corresponding soil layer of soil, the content of the Na<+> and the content of the Cl<->, which are calculated in the second step, and a salinity interval within which the total salt quantity of the soil layer soil falls, thereby judging whether the soil layer of soil is suitable for plant cultivation. The method meets requirements for dynamic monitoring of salinity, sodion and chloridion during municipal administration, civil engineering and greening construction of a coastal reclamation area mud flat.

Description

technical field [0001] The invention belongs to the field of ecology, and in particular relates to a method for quickly obtaining the total salt content and other ions in tidal flat soil in coastal dredging reclamation areas. Background technique [0002] The basic method for the determination of the total salinity of the soil and the sodium ions and chloride ions that are harmful to plants is: collect soil samples, groundwater and surface water samples on site, and pre-treat the samples separately in the laboratory, especially the soil samples need to be air-dried, Grinding, extracting the contained salt ions with the help of centrifuge and filtration technology, using a series of instruments and equipment such as conductivity meter, drying oven, analytical balance, flame photometer, automatic potentiometric titrator, etc., respectively adopting the mass method to measure the total salt content of the soil. The flame photometer method is used to measure sodium ions, and the...

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Problems solved by technology

[0002] The basic method for the determination of the total salinity of the soil and the sodium ions and chloride ions harmful to plants is: collect soil samples, groundwater and surface water samples on site, and pre-treat the samples separately in the laboratory, especially the soil samples need to be air-dried, Grinding, extracting the contained salt ions with the help of centrifuge and filtration technology, using a series of instruments and equipment such as conductivity meter, drying oven, analytical balance, flame photometer, automatic potentiometric titrator, etc., respectively adopting mass method to measure the total salt content of soil, using The flame photometer method is used to measure sodium ions, and the silver nitrate titration method is used to measure chloride ions to obtain the total salt content of the soil, the content of sodium ions and chloride ions. The whole process takes at least 10 days. This is a basic step in scientific research. Although The obtained data is scientific and correct, but for construction projects, not only does it require a large amount of investment in equipment, manpower and material resources, but more importantly, it cannot meet the timeliness requirements of construction projects, and it is difficult to achieve fast and efficient goals

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