Soil organic carbon storage amount estimation method based on soil genetic horizon thickness prediction

Abstract

The invention relates to a soil organic carbon storage amount estimation method based on soil genetic horizon thickness prediction. Better technological ideas are provided for continuous prediction of soil mass distributed in the horizontal dimension in consideration of soil attributes through unstructured information encapsulation of the genetic horizon; with the adoption of the technologies of genetic horizon merging, prediction and recalculation, the limitation of a conventional prediction method in continuous description of soil mass is corrected while character information of the soil genetic horizon is not missed, a universal soil organic carbon storage amount estimation technology for standard description and accurate prediction is realized, and the method has wide industrial application prospect in engineering survey of agricultural application, environmental protection, territorial resources and other relevant departments.

Description

technical field [0001] The invention relates to a method for estimating soil organic carbon storage based on the prediction of the thickness of soil origin layer, and belongs to the technical field of soil measurement. Background technique [0002] Soil carbon mainly includes soil organic carbon and soil inorganic carbon, and the soil inorganic carbon pool (carbonate carbon) is relatively stable. Soil organic carbon is mainly distributed in the soil at a depth of 1 meter, which has an important impact on the physical and chemical properties of the soil, and directly affects the soil quality. As one of the important indicators of soil fertility evaluation, the continuous reduction of soil organic carbon will directly lead to the impoverishment of agricultural soil. Soil organic carbon storage is not only one of the social issues that the ecological public interest survey focuses on, but also a global basic topic. Many application production and environmental protection depa...

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Problems solved by technology

[0009] (2) In the actual production and application of soil information, it is difficult for the existing production technology to comprehensively consider the thickness of the soil genesis layer

Existing soil survey projects still adopt the traditional field survey mode, which not only cannot obtain real-time data and descriptive information of soil physical and chemical properties in large-scale areas, but is also often limited by the technical capabilities of survey funding support and personnel survey operations

Soil system classification involves many soil diagnostic characteristics, and different diagnostic characteristics have quantitative and qualitative soil genetic model theory, which brings great difficulties to the actual production of technicians

Therefore, the existing basic soil organic carbon stock estimation projects often lack the merging technology that comprehensively considers the characteristics of soil genetic layers

[0010] (3) Existing technologies mostly focus on a fixed computing model, lacking intensive comparative research

At the same time, the unstructured data structure of soil data and the measurement soil characteristics of occurrence layers are important reasons for the imperfection of existing production technologies

[0011] The insufficiency of the existing soil organic carbon storage estimation technology mentioned above has brought great difficulties in the production and processing of soil information products and engineering applications in different application departments, such as remote mountainous areas, areas with complex human influence, and highly variable forest areas. The engineering application of carbon stock estimation will bring potential wrong decision-making support, which will directly cause losses to the national economic planning

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