Method for judging whether dry land is suitable for transformation into paddy field or not

A dry land and suitable technology, applied in the field of agricultural paddy field transformation, can solve the problems of less research, lack of systematic sorting and scientific demonstration, and inability to determine whether the field is suitable for transformation into paddy field, etc., and achieves the effect of easy operation.

Inactive Publication Date: 2017-06-23
SOUTH CHINA AGRI UNIV
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  • Summary
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  • Description
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Problems solved by technology

[0003] At this stage, there are few studies on "dry to water" research. Some scholars use the limit value of "dry to water" to explore the potential of "dry to water" and the optimal structure of agricultural planting, but it is impossible to determine whether a specific field is suitable for transformation. The limitations of paddy fields; some scholars have built a suitability evaluation system for "dry land to water" project areas based on the actual situation of the "dry land to water" project area, which lacks systematic combing and scientific demonstration and cannot be applied in practice

Method used

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  • Method for judging whether dry land is suitable for transformation into paddy field or not
  • Method for judging whether dry land is suitable for transformation into paddy field or not
  • Method for judging whether dry land is suitable for transformation into paddy field or not

Examples

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Effect test

example 1

[0049] Select a plot and measure five index values ​​of its irrigation guarantee rate, field slope, organic matter content, field size, and topographic slope; calculate the score of each index factor by the index score calculation method, and the specific conditions are shown in Table 4. The measured barrier layer depth is 75cm, then the correction factor ε=1. So in the end, the total C of this piece of land is calculated as follows:

[0050] C=1*(80*0.3534+86*0.2441+88*0.1732+80*0.0945+82*0.1339)=83 points

[0051] According to the total score of suitability, the final suitability degree of this piece of land is judged as suitable.

[0052] Table 4 The original value of the index factor in Example 1

[0053]

example 2

[0055] Select a plot, and measure five index values ​​of its irrigation assurance rate, field slope, organic matter content, field size, and topographic slope; calculate the score of each index factor by the index score calculation method, and the specific conditions are shown in Table 5. The measured barrier layer depth is 47cm, then the correction factor ε=0.8. So in the end, the total C of this piece of land is calculated as follows:

[0056] C=0.8*(80*0.3534+71*0.2441+72*0.1732+80*0.0945+64*0.1339)=59 points

example 2

[0057] Table 5 The original value of the index factor in Example 2

[0058]

[0059] According to the total suitability score, it is judged that the final suitability of this piece of land is barely suitable.

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Abstract

The invention discloses a method for judging whether dry land is suitable for transformation into a paddy field or not. The method comprises the steps that a piece of dry land serving as a judgment object is selected; data of irrigation ensuring rate, topographic slope, field surface slope, organic matter content and field piece scale of the dry land is obtained; scores of the factors of the dry land are calculated; the obstacle layer depth of the dry land is measured, the level of the obstacle layer depth is determined, and correction factors corresponding to limit factors for the dry land to be suitable for a 'dry land-to-paddy field' project are obtained; the overall score of the dry land is calculated; according to the overall score of the dry land, the level of the dry land suitable for transformation into the paddy field is determined. The method is based on annual achievements of cultivated land quality, has the advantages of being easy to operate, practical and feasible and can provide reference for paddy field land reclamation project selection pilot project areas, paddy field transformation tasks of the areas, specific field piece transformation feasibility and other 'dry land-to-paddy field' project problems.

Description

technical field [0001] The invention relates to the field of agricultural paddy field transformation, in particular to a method for judging whether dry land is suitable for transformation into paddy fields. Background technique [0002] In order to further tap the production potential of cultivated land and achieve the goal of "occupying paddy fields and supplementing paddy fields" to achieve the balance of cultivated land occupation and compensation, the "dry land to water" project can be implemented to indirectly develop new paddy fields. [0003] At this stage, there are few studies on "dry to water" research. Some scholars use the limit value of "dry to water" to explore the potential of "dry to water" and the optimal structure of agricultural planting, but it is impossible to determine whether a specific field is suitable for transformation. The limitations of paddy fields; some scholars have built a suitability evaluation system for "dry land to water" project areas ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00G06Q50/02
CPCA01B79/005G06Q50/02Y02A40/22
Inventor 胡月明赵碧舟王璐李波李西明
Owner SOUTH CHINA AGRI UNIV
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