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GB/T 21141-2007 English PDF

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GB/T 21141-2007: Technical regulations for sandification prevention and control
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Basic data

Standard ID GB/T 21141-2007 (GB/T21141-2007)
Description (Translated English) Technical regulations for sandification prevention and control
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B64
Classification of International Standard 65.020.40
Word Count Estimation 26,284
Date of Issue 2007-10-16
Date of Implementation 2008-05-01
Regulation (derived from) China National Standard Approval Announcement2007 No.11 (Total No.111)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the technical measures to prevent desertification and its requirements. This standard applies to all types of desertification prevention and control of land.

GB/T 21141-2007: Technical regulations for sandification prevention and control

---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.
Technical regulations for sandification prevention and contral ICS 65.020.40 B64 National Standards of People's Republic of China Desertification Control Technical Specifications Posted 2007-10-16 2008-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 of desertified land on Types 2 5 plants sand Measure 3 5.1 afforestation of sand and grass 3 5.2 afforestation 4 5.3 9 aerial seeding grass 5.4 Artificial grass 11 6 Physical and Sand Control Measures 12 7 Chemical Sand Control Measures 13 8 14 Conservation Tillage 14 9 Performance Survey 10 Technical File Management 17 Appendix A (informative) plant material to Combat Desertification 18 Appendix B (normative) to combat desertification with seedlings, seed size 21 Seeding rate in Appendix C (informative) aerial seeding and sowing 23 Annex D (normative) record check form 24 References 25

Foreword

The Standard Appendix B, Appendix D is a normative appendix, Appendix A, Appendix C is informative appendix. This standard is proposed and managed by the State Forestry Administration. This standard by the State Forestry Administration to Combat Desertification Manager responsible for the interpretation. Drafting of this standard. National Bureau to Combat Desertification Management Center, Beijing Forestry University. Participated in the drafting of this standard. Inner Mongolia Agricultural University, Forestry Research Institute of Xinjiang Uygur Autonomous Region, Shaanxi Province Desert Control Research Institute, the National SFA Northwest Forest Inventory and Planning Institute. The main drafters of this standard. Yang Weixi, Zhaoting Ning, Zhang Liming, Wang Jun, the paint Jianzhong mongolica, Liu Yu Hua, Peng Jiping, Dai Sheng-mao, Zhao Zhenxing Jiang Heaven, of SOIL, Xian, Jiang Ying, Qizong Qing. Desertification Control Technical Specifications

1 Scope

This standard specifies the technical measures to combat desertification and its requirements. This standard applies to all types of prevention and treatment of desertified land. Unless otherwise specified, the contents of this standard refers to methods and technical requirements without irrigation conditions.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB 6000-1999 Seedlings for Forestation quality grading GB 7908 Tree Seed Quality rating GB/T 15776-1995 Technical specification for afforestation

3 Terms and definitions

The following terms and definitions apply to this standard. 3.1 In all weather conditions, due to a variety of reasons for the formation of surface rendering with sand (gravel) material as the main feature of the process of land degradation. 3.2 Desertification has obvious characteristics of degraded land. 3.3 Vegetation cover less than 10%, a strong sandstorm activity, surface sand material highly mobile sand. 3.4 Vegetation cover more than 30%, the ground has obvious crust, sandstorm activity is weak, sand the surface material does not substantially flow of sand. 3.5 Vegetation cover between 10% to 30%, relatively strong ground often thin crusts, wind activity, local sand material flowing sand. 3.6 By protecting, restoring natural vegetation and construction of artificial vegetation to prevent erosion, sand barrier and fixed technical measures. 3.7 For plants with reproduction and growth of desertified land development conditions, by taking banned artificial means to protect or promote so as to restore vegetation Technical measures.

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