Method for predicting soda salinization and alkalization indexes through soil pH

A soil and soda technology, applied in the field of predicting the chemical indicators of soda salt and alkali, can solve the problems of a lot of manpower and material resources and a long period of chemical indicators measurement, and achieve the effect of scientifically accurate prediction data, saving measurement time and human and material resources.
CN113299350AActive Publication Date: 2021-08-24NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
Publication Date
2021-08-24

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Abstract

The invention relates to a method for predicting soda salinization and alkalization indexes, in particular to a method for predicting soda salinization and alkalization indexes through soil pH. The method solves the problems that the existing determination period for obtaining the chemical indexes of the soda saline-alkali soil is long, and a large amount of manpower and material resources are needed for support. The method comprises the following steps: 1, measuring soil pH; and 2, predicting according to a regression prediction equation. The method is scientific and accurate in prediction data, saves a large amount of soda saline alkali soil chemical index determination time and manpower and material resources, and is a high-throughput prediction method for soda saline alkali soil chemical indexes.
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Description

technical field

[0001] The invention relates to a method for predicting the chemical index of soda saline. Background technique

[0002] Saline-alkali soil spreads over more than 100 countries, with a total area of ​​more than 900 million hectares, accounting for about a quarter of the world's total land area, posing a severe challenge to the sustainable development of agriculture. The Songnen Plain is one of the largest alkaline soil areas in the world, with more than 3.73 million hectares in an alkaline state. Even more shocking is that about 20.0×10 3 hectares of land are newly salinized and / or alkalized, posing a serious threat to crop production. Compared with the neutral sodium chloride coastal saline-alkali land, the physical and chemical properties of soda saline-alkali soil are extremely bad, with high alkalinity (pH>8.5, ESP>50%), extremely poor soil structure and compacted soil characteristics, from ecological and From an economic point of view, the devel...

Claims

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