Valid

GB/T 47295-2026Digital soil mapping - Specification for the predictive mapping of soil types (English PDF)

数字土壤制图　土壤类型预测性制图规范

Preview PDF

This is a limited preview

Buy now to download the full PDF (16 pages)

Need quotation for your management?

Get a formal quotation for GB/T 47295-2026 in 30 minutes.

Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 31, 2026

Implementation date

October 1, 2026

Scope

GB/T 47295-2026 is the English-translated version of 数字土壤制图　土壤类型预测性制图规范.

GB/T 47295-2026 is the Chinese standard "Digital soil mapping - Specification for the predictive mapping of soil types". Its scope clause reads: This document specifies the mapping platform, mapping process, soil classification system, mapping classification levels, and soil types for predictive soil type mapping.

Requirements for sample data, environmental variable data, establishing prediction models, accuracy evaluation, and generating digital soil type maps. This document is applicable to creating a distribution map of soil types within a given spatial range. Its clauses include terms and definitions.

Found what you need?

Document preview — GB/T 47295-2026

National Standard of the People's Republic of China

ICS: 13.080
Classification: B 10

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.Mapping Platform
4.1 Hardware Platform
4.2 Software Platform
5.Drafting Process
6.Soil classification system
7.Cartographic Classification Level
8.Soil type sample data
8.1 Data Acquisition
8.2 Quality Control
9.Environmental variable data
9.1 Principles for Variable Selection
9.2 Data Collection
9.3 Data Processing
10.Establish a predictive model
10.1 Sample Data Construction
10.2 Construction of Training Sample Data
10.3 Construction of Validation Sample Data
10.4 Selection of Optimal Environment Variables
10.5 Selection and Training of Cartographic Models
10.6 Calculation of Cartographic Model Accuracy
11.Accuracy Evaluation
11.1 Output Precision Requirements
11.2 Prediction Model Update
12.Generate a digital soil type map.
12.1 Soil Type Map Generation
12.2 Data File Organization and Format
Appendix A (Informative) Examples of Soil Type Prediction Mapping
Appendix B (Informative) Soil Type Map Data Table
References

1 Scope

This document specifies the mapping platform, mapping process, soil classification system, mapping classification levels, and soil types for predictive soil type mapping.

Requirements for sample data, environmental variable data, establishing prediction models, accuracy evaluation, and generating digital soil type maps.

This document is applicable to creating a distribution map of soil types within a given spatial range.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 17296 Soil Classification and Codes in China

GB/T 17798 Geospatial Data Interchange Format

GB/T 20257.1 National Basic Scale Map Symbols Part 1.1.500, 1.1000, 1.2000 Topographic Map Symbols

GB/T 20257.2 National Basic Scale Map Symbols Part 2.Symbols for Topographic Maps of 1.5000 and 1.10000

GB/T 20257.3 National Basic Scale Map Symbols Part 3.1.25000, 1.50000, 1.100000 Topographic Map Symbols

GB/T 20257.4 National Basic Scale Map Symbols Part 4.1.250000, 1.500000, 1.1000000 Topography

Diagram

GB/T 32738 Specification for Digitalization of Soil Maps at 1.50000 and 1.100000

GB/T 36501 Soil Mapping 1.25000 1.50000 1.100000 Standard for Color Use and Legend of Soil Maps in China

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 soil type

Soil types are classified into an ordered hierarchical system based on soil-forming factors, soil-forming processes, and soil properties.

3.2 Digital Soil Mapping

The process of generating digital soil maps in a computer environment.

3.3 predictive mapping

A quantitative model was established using soil survey samples and their relationship with environmental variables to predict the mapping method for soil spatiotemporal variability.

Note. Raster data is typically used for mapping.

3.4

Soil-forming factors that influence the development and distribution of soil types.

Note. This includes climate, topography, parent material, organisms, time, human activities, etc.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 16 pages — is available in the English PDF.

Referenced standards

Normative references

How to Download GB/T 47295-2026

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.