Soil newly-added sampling point supplementary layout method based on farmland landscape zoning

A technology of farmland landscape and sampling points, applied in the field of soil science, can solve problems that affect the scientificity and rationality of data results, and ignore the importance of farmland landscape divisions, etc.

Active Publication Date: 2020-06-02
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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Problems solved by technology

The traditional sampling point layout method ignores the importance of farmland landscape divisions to the

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  • Soil newly-added sampling point supplementary layout method based on farmland landscape zoning
  • Soil newly-added sampling point supplementary layout method based on farmland landscape zoning
  • Soil newly-added sampling point supplementary layout method based on farmland landscape zoning

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Embodiment Construction

[0033] The technical solutions of the present invention will be further described below with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. Furthermore, the described features or structures may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of the embodiments of the present invention.

[0034] like figure 1 As shown in the figure, an exemplary embodiment of the present invention shows a method for supplementary layout of new soil sampling points based on farmland landscape zoning, which specifically includes the following steps:

[0035]1) Sampli...

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Abstract

The invention discloses a soil newly-added sampling point supplementary layout method based on farmland landscape zoning, and belongs to the technical field of soil science. The method comprises the following steps: presetting a polygon vector data set to be sampled as a newly added soil sampling area, and collecting various farmland landscape data in the polygon data set; defining and generatinga farmland space grid of a preset area to be sampled in a geographic information system; processing the farmland landscape data collected in the to-be-sampled area, and inputting the processed farmland landscape data into a hybrid clustering model for operation to obtain a farmland landscape partition farmland grid; and taking the farmland grid as a reference, carrying out random point selection sampling on sampling points which do not have existing sampling points in the spatial independent pattern spots in each partition and need to be newly added and supplemented when the number of the existing sampling points in each partition reaches the sampling point density threshold balance, and determining the positions and the number of the newly added sampling points. The method can improve thereasonability and efficiency of farmland supplementary sampling.

Description

technical field [0001] The invention relates to soil science and technology, in particular to a method for supplementary layout of new soil sampling points based on farmland landscape partitioning. Background technique [0002] Farmland soil sampling is an important technical means to obtain the spatiotemporal physicochemical properties of farmland. At present, in the investigation of basic fertility of farmland, investigation and sampling work of different geographical scope, sampling density and frequency has been carried out, and basic data of farmland of different quantity and distribution have been accumulated. In actual work, due to different target requirements, it often involves dynamic updating of farmland soil nutrients and other physical and chemical characteristics data, and it is necessary to update or supplement sampling surveys. Conventional random sampling methods based on grid layout and "S" shape usually only consider a few factors such as farmland area, l...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/02G06F16/29
CPCG06Q10/0639G06Q50/02G06F16/29Y02A90/10
Inventor 邓勋飞麻万诸任周桥陈晓佳吕晓男费徐峰龙文莉
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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