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Rainmaking optimal economic benefits region choicing and quantitative estimating method

A technology of economic benefit area and economic benefit, applied in the field of selection and quantitative evaluation of the best economic benefit area of ​​artificial rainfall, can solve the problems of different contribution rates and different economic benefits, and achieve the effect of increasing the scientific and technological advancement.

Inactive Publication Date: 2006-08-02
山东省气象科学研究所
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AI Technical Summary

Problems solved by technology

Because crops have different water requirements and sensitivity to water at different stages of the entire growth cycle, and at the same time, due to differences in geographical distribution, there are large differences in planting structures in different regions. There are also differences between different regions, which will inevitably lead to different contribution rates of the rainfall increase per millimeter to the final crop yield at different times, and the economic benefits of rainfall enhancement per millimeter at the same time are different in different regions.

Method used

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  • Rainmaking optimal economic benefits region choicing and quantitative estimating method
  • Rainmaking optimal economic benefits region choicing and quantitative estimating method
  • Rainmaking optimal economic benefits region choicing and quantitative estimating method

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Embodiment Construction

[0016] The present invention will be specifically described below by taking Shandong Province as an example. In the command and decision-making of artificial rainfall enhancement operations, the macroscopic cloud-seeding index is firstly determined, and the horizontal range of the operation area is determined by the ice saturation area, the rising area, and the area above the 0°C layer with water vapor integral >= 9mm; the ice saturation area , rising area, and quasi-saturated area determine the vertical cloud-seeding height of the operation area; in the area that meets the above cloud-seeding conditions, determine the best economic benefit area for main crops as the cloud-seeding area. The following steps are used in determining the zone of optimum economic benefit for major crops:

[0017] 1 Diagnosis and determination of crop water demand indicators

[0018] Method 1: Use the low-pass filter simulation method to carry out the trend yield (y) of each crop yield (y) t ) and...

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Abstract

Present invention discloses a precipitation enhancement optimum economic benefit zone selecting and quantifying evaluation system. It contains 1, first determining macroscopy cloud seeding indices, determine operational zone range according to water vapor integrated quantity of ice saturation zone, zone of uplift and above 0 degree centigrade layer, determine optimum main crops economic benefit zone as cloud seeding zone on satisfying cloud seeding conditional area.2, cropper water need indicial diagnoses and determine , 3, calculating asynchronization section amount of precipitation to crop yield contribution, 4, making quantify evaluate to precipitation enhancement agricultural economy, 5, antecedent precipitation index to precipitation enhancement economic benefit influence, 6, calculating total precipitation enhancement economic benefit according to main crops each mm precipitation enhancement economic benefit in different zone. Present invention increases precipitation enhancement scientificaalness and technologic progress.

Description

(1) Technical field [0001] The invention relates to a method for selecting and quantitatively evaluating an economic benefit area, in particular to a method for selecting and quantitatively evaluating an area with the best economic benefit for artificial rainfall enhancement. (2) Background technology [0002] At present, when my country determines the artificial rainfall enhancement operation area and operation time, it does not consider the water demand requirements for different growth stages of main crops. Artificial rainfall enhancement is a main means of three-dimensional drought resistance and utilization of cloud water resources, and agriculture is the main direct beneficiary of artificial rainfall enhancement. Because crops have different water requirements and sensitivity to water at different stages of the entire growth cycle, and at the same time, due to differences in geographical distribution, there are large differences in planting structures in different regi...

Claims

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Application Information

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IPC IPC(8): G06Q10/00G06Q50/00A01G15/00G06F19/00
Inventor 王以琳薛晓萍
Owner 山东省气象科学研究所
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