LY/T 1951-2011 English PDF

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LY/T 1951-2011: Fast growing and high yield plantation of Taiwania flousiana
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Basic data

Standard ID: LY/T 1951-2011 (LY/T1951-2011)
Description (Translated English): Fast growing and high yield plantation of Taiwania flousiana
Sector / Industry: Forestry Industry Standard (Recommended)
Classification of Chinese Standard: B65
Classification of International Standard: 65.020.40
Word Count Estimation: 11,136
Date of Issue: 2011-06-10
Date of Implementation: 2011-07-01
Quoted Standard: GB 6000-1999; GB 7908; GB/T 15776-2006; GB/T 15781-2009; LY/T 1000; LY/T 1646-2005; LY/T 1724-2008
Regulation (derived from): State Forestry Administration in 2011 Notice No. 9
Issuing agency(ies): State Forestry Administration
Summary: This standard specifies the bald fir plantation indicators and the main technical measures. This standard applies to fast growing bald fir forest cultivation and management.

LY/T 1951-2011: Fast growing and high yield plantation of Taiwania flousiana

---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.
Fast growing and high yield plantation of Taiwania flousiana ICS 65.020.40 B65 People's Republic of China Forestry Industry Standard Fast-growing and high-yield forest Published on.2011-06-10 2011-07-01 implementation State Forestry Administration released

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Balsui suitable area and site conditions 1 4 high yield forest indicator 1 5 High-yield forest cultivation measures 2 Appendix A (normative appendix) Appendix B (Normative Appendix) Table of Classification of Bald Fir High Yield Forest Sites Appendix C (informative appendix) Main technical indicators of fast-growing and high-yield forest cutting of Bald fir Table 7

Foreword

Appendix A and Appendix B of this standard are normative appendices, and Appendix C is an informative appendix. This standard is proposed and managed by the National Afforestation Standardization Technical Committee (SAC/TC385). This standard is drafted by. Yunnan Forestry Investigation and Planning Institute. The main drafters of this standard. Liu Peiyun, Li Chunyan, Li Dong, Wang Lizhen, Hu Cankun, Lu Yaqiang, Li Jiangpeng. Fast-growing and high-yield forest

1 Scope

This standard specifies the indicators and main technical measures for fast-growing and high-yield forests of Bald fir. This standard applies to the cultivation and management of fast-growing and high-yield forests of Bald fir.

2 Normative references

The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. GB 6000-1999 Quality classification of main afforestation tree seedlings GB 7908 forest tree seed quality classification GB/T 15776-2006 Afforestation Technical Regulations GB/T 15781-2009 Forest tending procedures LY/T 1000 container seedling technology LY/T 1646-2005 Forest harvesting procedures LY/T 1724-2008 Short-rotation and fast-growing and high-yield timber harvesting procedures

3 Bald fir suitable area and site conditions

3.1 Balsui suitable area According to the natural geographical distribution of the natural distribution area of the cedar and the artificial cultivation area, the ecological conditions and growth conditions are divided into two. District. See Table A.1. 3.2 Classification of Bald Sediment Conditions Within the suitable area of the cedar, the types of conditions of the cedar stand were classified according to climate indicators, small topography, soil factors and parent rock types. See Table B.1.

4 high yield forest indicators

4.1 Calculating age The growth index of fast-growing and high-yield forest of Bald fir is calculated by 40 years, including seedling age. 4.2 Growth indicators In the Class I area, the average annual growth of 20 years is more than 13.5m3 per hectare, and the average DBH of the stand reaches 22.0cm. Class II area The annual average growth of 20 years is more than 10.1m3 per hectare, and the average DBH of the stand reaches more than 19.0cm. Lower limit growth of different forest ages The indicators are shown in Table 1. Table 1 Growth indicators of high-yield forests of Bald age Class I zone Average tree height / Average DBH / Cm Annual average production / (m3/hm2) Average tree height / Average DBH / Cm Annual average production / (m3/hm2) 4 3.9 5.4 1.41 28 3.4 0.53 5 5.1 6.8 2.27 3.8 4.9 1.09 ......

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