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GB/T 33469-2016Cultivated land quality grade (English PDF)

耕地质量等级

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 30, 2016

Implementation date

December 30, 2016

Scope

GB/T 33469-2016 is the English-translated version of 耕地质量等级.

GB/T 33469-2016 is the Chinese standard "Cultivated land quality grade". Its scope clause reads: This standard stipulates the division of cultivated land quality, the determination of indicators, the division of cultivated land quality and other content.

This standard applies to all levels of administrative regions and specific areas of cultivated land quality grade division. The classification of the quality of the garden can refer to the implementation. Its clauses include normative reference documents; terms and definitions.

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Document preview — GB/T 33469-2016

National Standard of the People's Republic of China

ICS: 13.080.01
Classification: B 10

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

Preface
1 Scope
2 normative reference document
3 Terms and definitions
4 Grade of cultivated land grade
4.1 General
4.2 Classification of cultivated land quality grade
4.3 Arable land quality indicators to obtain
4.4 Determine the weight of each indicator
4.5 Calculate the membership degree of each index
4.6 Calculate the comprehensive index of cultivated land quality
Appendix A (Normative Appendix) Grade of Cultivated Land Quality Classification Area
Appendix B (Informative Annex) Indicators of Regional Cultivated Land Quality Ranking
Appendix C (normative) Determination of soil organic matter
Appendix D (normative) Determination of soil mechanical composition
Appendix E (normative) Determination of soil bulk density
Appendix F (normative) Determination of total water - soluble salts in soil
Appendix G (normative) Determination of chloride content in soils
Appendix H (normative) Determination of sulfate content in soils
Appendix I (normative) Determination of soil pH

1 Scope

This standard stipulates the division of cultivated land quality, the determination of indicators, the division of cultivated land quality and other content.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article

Pieces. For undated references, the latest edition (including all modifications) applies to this document.

Soil Environmental Quality Standard

Chinese Journal of Soil Science and

Technical specification for soil environmental monitoring

3 terms and definitions

The following terms and definitions apply to this document.

3.1 Cultivated land

Land for crop cultivation.

3.2 Cultivated land productivity

In the current management level, by the soil site conditions, natural attributes and other related factors constitute the cultivated land production capacity.

3.3 Soil health status

Soil as a dynamic life system has the ability to sustain its function, with cleanliness, and biodiversity.

Note. The degree of cleanliness reflects the extent to which soils are affected by toxic and hazardous substances such as heavy metals, pesticides and agricultural film residues; biodiversity reflects soil fertility

Rich degree.

3.4 Terrain parts

With a specific morphological features and genesis of small and medium scale units.

3.5 Field slope fieldsurfaceslope

The angle between farm slope and horizontal plane.

3.6 Groundwater depth

The distance from the diving surface to the ground surface.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 38 pages — is available in the English PDF.

Referenced standards

Cited by

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