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Method for determining optimal agricultural planting system of research area based on multi-objective comprehensive evaluation system

A planting system and comprehensive evaluation technology, applied in the field of determining the best agricultural planting system in the research area based on the multi-objective comprehensive evaluation system, to achieve the effect of convenient evaluation

Active Publication Date: 2020-02-21
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Adjustment and optimization of agricultural planting structure is needed, and corresponding scientific theoretical guidance and technical support are needed, but existing technologies cannot meet this demand

Method used

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  • Method for determining optimal agricultural planting system of research area based on multi-objective comprehensive evaluation system
  • Method for determining optimal agricultural planting system of research area based on multi-objective comprehensive evaluation system
  • Method for determining optimal agricultural planting system of research area based on multi-objective comprehensive evaluation system

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Embodiment

[0083] Taking four locations (Nanyang, Xinxiang, Tai'an and Luancheng) in the North China Plain as the research area, taking wheat and corn as examples, the future optimal planting system of the research area is predicted and studied using the technical method of the present invention. For (Baseline, 2000-2009) and future (2050-2059), the weight coefficients of carbon footprint (CF), nitrogen use efficiency (NUE) and water use efficiency (WUE) are 40%, 30% and 30%, respectively, where The APSIM model is used, and the climate, soil, and site historical observation data are used for many years.

[0084] Among them, the variety parameters and initial specific values ​​of wheat and corn are shown in Table 1 below.

[0085] The corn planting period is from May 25th to July 1st and May 25th to June 25th, and wheat is sown within 15 days after corn harvest. The range of wheat planting density is set at 150-800 plants per square meter, and that of corn is set at 4-9 plants per square...

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Abstract

The invention discloses a method for determining an optimal agricultural planting system of a research area based on a multi-objective comprehensive evaluation system. The method comprises: S1, localizing an agricultural system model; s2, preliminarily setting a plurality of alternative agricultural planting systems; s3, acquiring climate, soil and agricultural management data information of a research area, utilizing the agricultural system model to simulate and calculate target parameters of each alternative agricultural planting system in a research period, wherein the target parameters include crop yield, nitrous oxide emission and soil organic carbon change; s4, according to the nitrous oxide emission, the soil organic carbon change and the crop yield, calculating the carbon footprint(CF) of agricultural production of each alternative agricultural planting system in the research period; and S5, comparing the carbon footprints (CF) of the agricultural production of each alternative agricultural planting system in the research time period, and selecting the planting system with the minimum carbon footprint as the optimal agricultural planting system in the research time periodin the research area.

Description

technical field [0001] The invention relates to the field of agricultural information technology, and more specifically relates to a method for determining the optimal agricultural planting system in a research area based on a multi-objective comprehensive evaluation system. Background technique [0002] A regional agricultural planting system needs to be scientifically planned and selected according to regional climate, resources and production environment conditions. Only by developing a suitable planting system in a suitable area can both production, economic and environmental benefits be taken into account, and sustainable agricultural development be achieved. However, in practice, the determination of the agricultural planting system in a region mainly continues the historical tradition, one-sidedly pursues high yield, one-sidedly pursues economic benefits, or follows the trend or obeys administrative instructions; the agricultural planting system in the region lacks sc...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/02A01G22/20A01G22/22A01G22/40
CPCA01G22/20A01G22/22A01G22/40G06Q10/04G06Q50/02
Inventor 陶福禄辛月
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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