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Farmland straw resource spacial distribution estimation method

A technology of spatial distribution and straw resources, applied in computing, instrumentation, electrical and digital data processing, etc., can solve problems such as large deviations in calculation results, inability to accurately reflect relative differences in straw productivity, and achieve low-cost effects.

Active Publication Date: 2015-07-22
WUHAN UNIV
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Problems solved by technology

However, when calculating the distribution of straw amount based on the crop planting area, it is usually based on the grass-to-grain ratio coefficient or the crop yield in the statistical yearbook, which cannot accurately reflect the relative difference in straw productivity of the same crop in different spaces
As a result, there may be large deviations in the calculation results

Method used

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  • Farmland straw resource spacial distribution estimation method
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  • Farmland straw resource spacial distribution estimation method

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Embodiment Construction

[0059] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0060] Crop stalks usually refer to the remaining parts of wheat, rice, corn, potatoes, oilseeds, cotton, sugar cane and other crops (usually coarse grains) after the seeds are harvested. Since the ratio of straw to grain (grass-to-grain ratio coefficient) of each crop in each county (city) is basically fixed, the amount of straw per unit area of ​​the crop can be estimated by multiplying the grass-to-grain ratio coefficient of each county (city) by the unit yield of the crop.

[0061] The global land cover data (GlobalLand30) is the scientific research achie...

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Abstract

The invention discloses a farmland straw resource spacial distribution estimation method. According to the method, a traditional statistical method is combined with the remote sensing technology, and statistical yearbook data and remote sensing net primary productivity (NPP) data are comprehensively utilized to conduct estimation on spatial distribution characteristics of farmland straw resources in the interior of a region. According to the farmland straw resource spacial distribution estimation method, the accuracy advantage of statistical data on the aspect of total amount calculation and advantages of remote sensing data on the aspect of reflecting the spatial distribution characteristics are fully utilized, and therefore the spatial distribution characteristics of farmland straw resources in the interior of the region can be reflected more accurately; on the whole, the farmland straw resource spacial distribution estimation method has the advantages of being rapid, simple, convenient and low in cost.

Description

technical field [0001] The invention belongs to the technical field of biomass energy and renewable energy, and in particular relates to a method for estimating the spatial distribution of farmland straw resources. Background technique [0002] Facing the dual pressure of economic growth and environmental protection in the new century, changing the way of energy production and consumption, and developing and utilizing renewable clean energy such as biomass energy are of great importance to countries all over the world in establishing sustainable energy systems and promoting national economic development and environmental protection. significance. Biomass energy has become an increasingly important development field. [0003] Crop straw is an important part of biomass energy materials. It has the characteristics of low cost, low pollution and high benefit, and has great development potential. It is an ideal renewable and clean energy. However, due to the shackles of traditi...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 龙玉清王昆张东杰施炳晨
Owner WUHAN UNIV
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