A kind of method of field herbaceous plant environmental control test

Abstract

The invention discloses a field herbaceous plant environment control test method. The method comprises the following steps that 1, a planting sample plot is selected; 2, plants to be planted are selected; 3, halophyte and xerophyte seedlings are planted in the sample plot in the first ten-day period of April of the first year, irrigation is conducted after the halophyte and xerophyte seedlings areplanted, and it is ensured that the water content of soil after irrigation reaches the saturation water content; 4, irrigation is carried out once after planting at the end of April, and it is ensured that seedling planting is successful through manual management; 5, salt and drought gradient test processing is completed in early May, and then field observation test and plant and soil sample collection are carried out according to requirements of research purposes in growth seasons including May, July and September; 6, in the middle ten days of April of the second growth year, irrigation is conducted once, and it is ensured that the saturation water content of the soil is reached after each time of irrigation. The method is low in cost, the salt and water gradient is obvious, control samples are easy to select, and the effect is good.

Description

technical field [0001] The invention belongs to the technical field of plant physiology and ecology research, and relates to a method for field herb plant environment control test. Background technique [0002] The relationship between organisms and the environment and their interactions have been continuously improved through natural selection during the long process of biological succession. During this process, the environment is constantly changing to affect the organisms, and the organisms are constantly evolving to adapt to and in turn affect the environment. Each species adapts to its physical and biological environment through certain physiological and ecological strategies, which can be manifested in biochemistry, physiology, morphology, behavior and group sociology, etc. Taking arid regions as an example, the continuous climate change characterized by changes in precipitation patterns and frequent extreme droughts affects the living environment of plants. grow. ...

AI Technical Summary

Problems solved by technology

[0008] Field observation and laboratory cultivation methods are mostly used. It can be seen that the condition of "field observation" is the original growth environment of plants, and the experimental results are the most realistic display under natural conditions. However, the biggest disadvantage is that the gradient changes of environmental factors are difficult to control. , unable to further explain the changes in plant mechanisms

The single-factor or two-factor environmental gradient in "laboratory cultivation" is easier to control, but the soil environment is not the original natural condition, and the influence of groundwater on plant growth is ignored, some important results may be missed, and the changing soil environment may cause Salt and drought tolerant plants grow poorly or even die later

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