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Crop straw resource spatialization method based on statistical data and remotely-sensed data

A technology for crop straw and statistical data, which is applied in electrical digital data processing, special data processing applications, calculations, etc., can solve problems such as the distribution of straw resources that cannot be represented

Active Publication Date: 2015-07-08
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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Problems solved by technology

The amount of straw resources obtained by this method is the same value in the same administrative unit, and the generated data has the characteristics of uniform distribution in the same administrative unit and abrupt distribution among different administrative units, which obviously cannot represent the actual distribution of straw resources

Method used

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  • Crop straw resource spatialization method based on statistical data and remotely-sensed data
  • Crop straw resource spatialization method based on statistical data and remotely-sensed data
  • Crop straw resource spatialization method based on statistical data and remotely-sensed data

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Embodiment Construction

[0044] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] like figure 1 Shown, the present invention comprises the following steps:

[0046] First, using the statistical data of crop production in all provinces and provinces in 2010, combined with the grass-to-grain ratio coefficient, collectable coefficient and the proportion of straw that can be sourced, the total amount of straw resources that can be sourced and used in each province is calculated. The specific calculation process includes the following three steps:

[0047] 1) Using the statistical data of crop production in each province in the country in 2010 combined with the grass-to-grain ratio coefficient, use the calculation formula in step S1 to calculate the th...

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Abstract

The invention discloses a crop straw resource spatialization method based on statistical data and remotely-sensed data. The crop straw resource spatialization method comprises the following steps of: 1, acquiring yield statistical data and grass valley ratio coefficients of various types of crops of each administration unit, and calculating a theoretical resource value of crop straws of each administration unit; 2, calculating a collectable utilization value of straw resources of each administration unit according to collectable utilization coefficients of the straw resources; 3, calculating an energible utilization straw resource value of each administration unit according to an energible utilization straw proportion of different crops; 4, extracting net primary productivity (NPP) space distribution on a ploughed land; 5, calculating a main NPP value of the ploughed land of each administration unit; 6, calculating a straw energible utilization resource value corresponding to the unit NPP of the ploughed land of each administration unit; and 7, spatializing energible utilization resources of the crop straws. By the method, the space distribution condition of the energible utilization resources of the crop straws can be intuitively reflected and is close to the natural distribution condition of the crop straws.

Description

technical field [0001] The invention relates to the technical fields of crop straw resources and remote sensing spatialization. In particular, it relates to a spatialization method of straw resource density combined with crop yield statistical data and remote sensing data. Background technique [0002] Vigorously developing renewable energy, especially biomass energy, is an important measure to solve the current and future contradiction between energy supply and demand; it is an inevitable choice to protect the environment and promote sustainable economic and social development. Crop straw is a valuable biomass resource, but due to the limitation of traditional concepts and conditions for a long time, the degree of comprehensive utilization is not high. With the depletion of petrochemical resources and the increasingly prominent environmental problems, as well as people's pursuit of sustainable development, environmental protection and circular economy, the resource utiliza...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 徐新良付颖李双
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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