GB/T 45298-2025 English PDF

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GB/T 45298-2025: Soil mapping - Specification for the symbols, colors and legends of soil texture, pH and salinization maps at the scale of 1: 25 000～1: 500 000
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 45298-2025	359	Add to Cart	4 days	Soil mapping - Specification for the symbols, colors and legends of soil texture, pH and salinization maps at the scale of 1: 25 000～1: 500 000	Valid

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Basic data

Standard ID: GB/T 45298-2025 (GB/T45298-2025)
Description (Translated English): Soil mapping - Specification for the symbols, colors and legends of soil texture, pH and salinization maps at the scale of 1: 25 000��1: 500 000
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B10
Classification of International Standard: 13.080.01
Word Count Estimation: 18,185
Date of Issue: 2025-02-28
Date of Implementation: 2025-09-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 45298-2025: Soil mapping - Specification for the symbols, colors and legends of soil texture, pH and salinization maps at the scale of 1: 25 000～1: 500 000

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
GB/T 45298-2025 English version. Soil mapping - Specification for the symbols, colors and legends of soil texture, pH and salinization maps at the scale of 1.25 000～1.500 000 ICS 13.080.01 CCSB10 National Standard of the People's Republic of China Soil mapping 1.25000~1.500000Soil texture, pH, Standards for the format, color and legend of salinization maps Released on 2025-02-28 2025-09-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Graphics, Color 2 5 Figure 3 6 Verification Method 3 Appendix A (normative) Soil texture and salinity type diagram 4 Appendix B (Normative) Soil Texture, pH, and Salinization Color Code 6 Appendix C (Informative) Sample Drawings 8 Reference 11

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the Ministry of Agriculture and Rural Affairs of the People's Republic of China. This document is under the jurisdiction of the National Technical Committee on Soil Quality Standardization (SAC/TC404). This document was drafted by. Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Nanjing Institute of Soil Science, Chinese Academy of Sciences, Agricultural Technology Extension and Service Center, Ministry of Agriculture and Rural Affairs Farmland Quality Monitoring and Protection Center, Beijing Academy of Agricultural and Forestry Sciences, Jiangsu Provincial Quality and Standardization Administration Research Institute. The main drafters of this document are. Ji Hongjie, Xu Aiguo, Shi Xuezheng, Lu Changai, Tian Youguo, Chen Shoulun, Ma Changbao, Huang Hongxiang, Zhang Renlian, Qu Xiaolin, Yu Dongsheng, Wei Dan, Huang Rong. Soil mapping 1.25000~1.500000Soil texture, pH, Standards for the format, color and legend of salinization maps

1 Scope

This document specifies the format, color scale, and legend of soil texture, pH, and salinization maps with a scale of 1.25000 to 1.500000. With the annotation requirements, the verification method is described. This document is applicable to soil texture, pH, salinity, and soil erosion at the national basic scale of 1.25000 to 1.500000. It is used as a reference for the preparation of maps of other scales.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 24354 General map symbols for public geographic information

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 tone The color gradation formed by the overall relationship between colors. [Source. GB/T 16820-2009, 6.12] 3.2 Color target A series of color values used to establish the relationship between the colors rendered by a device and its input values. [Source. GB/T 9851.2-2008, 2.25] 3.3 specification for cartographic symbols Uniform regulations for the style, specifications, color, annotations, and outline decoration and use of cartographic element symbols on maps. [Source. GB/T 16820-2009, 2.26] 3.4 Nonsoilpropertiesmappingunit Map content composed of non-soil formations. Note. Non-soil formations include glaciers, snow sheets, salt crusts, rock outcrops, etc. 3.5 soil texturesoiltexture The soil is divided into several combinations according to the relative proportions of soil particles of different particle sizes (differences in the mechanical composition of the soil). ......

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