Multi-species crop agroclimate regionalization method

A crop, multi-variety technology, applied in the field of climate science, can solve the problems of waste and unutilized climate resources

Active Publication Date: 2014-10-15
徐州博创建设发展集团有限公司
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Problems solved by technology

Therefore, this division is only suitable for individual varieties corresponding to the above-mentioned divisional indicators, and only in a small area near the division line in the suitable area, the climate res

Method used

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  • Multi-species crop agroclimate regionalization method

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Embodiment Construction

[0036] Embodiments of the present invention: the agricultural climate zoning method of multi-variety crops, taking Guizhou as an example:

[0037] 1) Usually, the climatic resources for crop growth are mainly light, temperature, and water. In Guizhou (as is the case in most areas), the light basically meets the needs of crop growth. Therefore, the commonly referred to as agricultural climatic resources mainly refer to temperature and precipitation, both temperature and precipitation vary with space, leading to differences in climate resources across regions. Temperature is affected by geographical factors (longitude and latitude, altitude), and especially has a good linear correlation with altitude. This is the key to extending temperature to any point in space. Collect latitude ψ, longitude δ, and altitude λ to establish The mathematical model f(ψ, δ, λ) of the daily average t temperature changing with latitude ψ, longitude δ, and altitude λ, put the latitude ψ, longitude δ, ...

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Abstract

The invention discloses a multi-species crop agroclimate regionalization method. The method comprises the steps that according to the climate indexes of regionalization crop sowing and maturation, and under 80% climate assurance rate, the spatial distribution of climate growth period length of a crop is calculated; then classification marking is carried out according to a certain time interval to obtain a climate growth period length regionalization map of the crop. According to the method, the regionalization and the classification are carried out by taking the climate growth period length as parameters, the number of days of climate growth period length at a place with insufficient climatic resources is lower, the number of days of climate growth period length at a place with abundant climatic resources is higher, and therefore each species is planted in a region with the corresponding climate growth period length according to the own growth period length attribute. The climate resources are fully utilized, the quality potential and the production increase potential of each species are fully exerted, the planting area is effectively enlarged, and meanwhile, the harm of the meteorological disasters can be effectively reduced by the 80% assurance rate.

Description

technical field [0001] The invention relates to the field of climate science, in particular to an agricultural climate division method for multi-variety crops. Background technique [0002] So far, crop-based agro-climate regionalization technology has been widely used at home and abroad. This technology usually averages the different climatic biological parameters of many varieties of crops to be regionalized, and obtains a unique set of parameters as regionalization indicators, and divides the space into two regions with different attributes suitable for planting and unsuitable for planting, such as figure 1 schematic diagram. Therefore, this division is only suitable for individual varieties corresponding to the above-mentioned divisional indicators, and only in a small area near the division line in the suitable area, the climate resources can be better utilized, while in the suitable area the climate resources increase in a wide range of directions. In the region, a l...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 康为民
Owner 徐州博创建设发展集团有限公司
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