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LY/T 2250-2014Technical regulations for forst soil survey (English PDF)

森林土壤调查技术规程

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Issued by

State Forestry Administration

Level / Type

National · Recommended

Issue date

August 21, 2014

Implementation date

December 1, 2014

Scope

LY/T 2250-2014 is the English-translated version of 森林土壤调查技术规程.

LY/T 2250-2014 — This standard specifies the preparation of forest soil field investigation, profile mining, observation of morphological characteristics and sample collection methods. This standard applies to forestry survey soil survey.

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Document preview — LY/T 2250-2014

National Standard of the People's Republic of China

ICS: 13.080.05
Classification: B 11

Issued by: State Forestry Administration

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4Pre-preparation
4.1 Technical Information
4.2 Route and profile point layout
4.3 Materials and Tools
5 Soil profile point selection and mining
5.1 Profile point selection principle
5.2 Profile mining requirements
6 Profile Observation and Recording
6.1 Soil Hierarchy
6.2 Section photography
6.3 Observation point of the basic situation
6.4 Profile characteristics of soil
6.5 Other records
6.6 Record Notes
7 Soil Sample Collection
7.1 Original sample
7.2 Analysis of samples
7.3 Than the specimen
7.4 The entire specimen
7.5 Micro-Morphology Sample
8 Soil profile backfill
Appendix A (Normative) Forest soil layer division and description
Appendix B (Normative) Terrain classification and description
Appendix C (Normative) Forest Soil Erosion Class
Appendix D (Normative) Ground Rock Bare Level
Appendix E (Normative) Forest soil layer transition characteristics
Appendix F (Normative) Common types of soil structure
Appendix G (Normative) Soil moisture classification
Appendix H (informative) soil texture of the field of appraisal grading
Appendix I (Normative) Soil compaction grading standards
Appendix J (normative) common soil newborn species
Appendix K (Normative) Soil level
Appendix L (Normative) Soil gravel content
Appendix M (Normative) Soil calcification reaction grading
Appendix N (informative) Forest soil survey records with the table

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard proposed by Beijing Forestry University.

This standard is centralized by the State Forestry Administration.

This standard was drafted. Beijing Forestry University.

1 Scope

This standard specifies the preparation of forest soil field investigation, profile mining, observation of morphological characteristics and sample collection methods.

This standard applies to forestry survey soil survey.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 17296 China soil classification and code

3 Terms and definitions

The following terms and definitions apply to this document.

Forest soil Natural forests, soils under secondary and afforestation, barren hills and wasteland in Yilin.

4 Pre-preparation

4.1 Technical Information

4.1.1 Weather data

Survey of annual, monthly mean temperature, annual absolute maximum temperature, minimum temperature, dryness, 10 °C and above the accumulated temperature and the effective number of days; year Precipitation and rainfall concentrated period.

4.1.2 Image information

Survey area topographic maps, remote sensing images, forest photos and the text description of the map.

4.1.3 Soil information

Investigate the original soil survey data in the area.

4.2 Route and profile point layout

4.2.1 Survey route

According to the survey area topography and traffic conditions, the size of the task to be arranged, in principle, requires that include different topographical sites and vegetation Types of.

4.2.2 Profile point layout

Depending on the complexity of the soil and the terrain, investigate the route arrangement, the scale of the base map and the area that each section represents,

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 21 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 17296Classification and codes for Chinese soil

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