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Test method for manual simulation of hail shooting disaster

A test method and artificial simulation technology, applied in horticultural methods, botanical equipment and methods, gardening tools/equipment, etc., can solve the problems of no test method, incapable of quantitative control and accurate measurement, and no systematic test data of hailstorm scenarios, etc.

Inactive Publication Date: 2012-07-18
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

However, the above test is quite different from the natural hailstorm scenario, because it cannot quantitatively control and accurately measure the stone diameter, stone density, and stone kinetic energy used in the test. There is no systematic method for the processing of test data, etc.
At present, there are also some test devices for hail disaster simulation, but they are all devices for hail impact simulation tests on solar cells, solar water heaters, aircraft or other similar products, and there are no tests involving hail disaster damage to crop output, and there is no systematic experiment method

Method used

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  • Test method for manual simulation of hail shooting disaster
  • Test method for manual simulation of hail shooting disaster
  • Test method for manual simulation of hail shooting disaster

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Embodiment 1

[0043] The cotton fields of farmers in Rongjiazhuang, Gaolou Town, Sanhe City, Hebei Province were selected as the experimental field.

[0044] Such as Figure 5 Shown, according to the test method of the present invention, concrete implementation steps are as follows:

[0045] (1) Design hail disaster scenarios with cotton growth period, hail size and hail density as variables:

[0046] First, the cotton growth period is divided into five growth periods: seedling emergence stage, seedling stage, bud stage, flowering and boll stage, and leaf floc stage, and then two variables, hail diameter and hail density, are selected in each cotton growth stage, and control All hail scenarios were designed separately by the variable method.

[0047] Described hail diameter adopts 1cm, 1.5cm, 2cm, 2.5cm, 3cm and 5cm respectively;

[0048] Said hail density is 150 hailstones / m 2 , 300 pieces / m 2 and 450pcs / m 2 ;

[0049] Therefore, 18 hail scenarios are designed for each cotton growth...

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Abstract

The invention provides a test method for manual simulation of a hail shooting disaster, which comprises the following steps of: (1) taking cotton growth period, hail size and hail shooting density as variables to design a hail disaster situation; (2) dividing a test field into a test plot and a check plot; and dividing the test plot according to the situation designed by the step (1); (3) in each cotton growth period, according to the situations designed by taking the hail size and the hail shooting density as variables in step (1), respectively carrying out manual simulation hail shooting impact tests on cotton plants in corresponding test plots, and observing and recording traits of the cotton plants before and after impact in corresponding test plots and check plots; and (4) after completion of a last cotton growth period, observing and recoding yield traits in corresponding test plots and check plots, and processing and analyzing observation data. Through the test method for manual simulation of the hail shooting disaster provided by the invention, the aim of quantitative research of loss caused by hail damage to crops can be reached, so that kernel parameters of kernel disaster, loss and further risk assessment of vulnerability of a bearing body of the hail disaster can be determined.

Description

technical field [0001] The invention relates to a test method for artificially simulating hail disasters, belonging to the field of new methods for dealing with agricultural meteorological disasters. Background technique [0002] Hail disaster is a serious meteorological disaster. With the increasing types of agricultural disaster-affected bodies and the improvement of urbanization level, the losses caused by it are increasing day by day. Fan Baojun (1999) defined hail disasters as disasters caused by solid precipitation falling on the ground from the developing and powerful tall cumulonimbus clouds. Zhang Yangcai et al. (1991) believed that it is a kind of meteorological disaster with strong locality, obvious seasons, rapid onset, short duration, and mainly smashing injuries. In short, hail disaster is the damage caused by hail falling on various disaster-affected bodies. [0003] Hail disaster is a serious meteorological disaster. Although its duration is short and its s...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G7/00
Inventor 岳耀杰栗健王静爱张峰张化赵金涛史培军周兰张国明
Owner BEIJING NORMAL UNIVERSITY
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