HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

LY/T 1690-2017 English PDF

US$329.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
LY/T 1690-2017: Technical regulation of restoration of low function forest
Status: Valid

LY/T 1690: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
LY/T 1690-2017English329 Add to Cart 3 days [Need to translate] Technical regulation of restoration of low function forest Valid LY/T 1690-2017
LY/T 1690-2007English519 Add to Cart 3 days [Need to translate] Technical regulations on reconstruction of low-function forest Obsolete LY/T 1690-2007

PDF similar to LY/T 1690-2017


Standard similar to LY/T 1690-2017

LY/T 2407   GB/T 30762   LY/T 1650   LY/T 3141   LY/T 3364   LY/T 2514   

Basic data

Standard ID LY/T 1690-2017 (LY/T1690-2017)
Description (Translated English) Technical regulation of restoration of low function forest
Sector / Industry Forestry Industry Standard (Recommended)
Classification of Chinese Standard B64
Classification of International Standard 65.020.40
Word Count Estimation 14,189
Date of Issue 2017-10-27
Date of Implementation 2018-01-01
Older Standard (superseded by this standard) LY/T 1690-2007
Regulation (derived from) National Forestry Admistration Notice 2017 No. 18; Industry Standard Filing Notice No. 12 (Total No. 216)
Issuing agency(ies) State Forestry Administration

LY/T 1690-2017: Technical regulation of restoration of low function forest

---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.
(Low efficiency forest transformation technical regulations) ICS 65.020.40 B64 People's Republic of China Forestry Industry Standard Replacing LY/T 1690-2007 Low-efficiency forest transformation technical regulations Released on.2017-10-27 2018-01-01 implementation State Forestry Administration released

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Principles of low-efficiency forest transformation 2 5 Type division and evaluation criteria 2 6 Modification methods and technical requirements 3 7 homework design 5 8 Construction Management 7 9 Monitoring and Archives Management 7 Appendix A (normative appendix) Low-efficiency forest small class status survey and transformation design table 8 Appendix B (normative appendix) Low-efficiency forest transformation work small class score sheet 10 Reference 11

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces LY/T 1690-2007 "Technical Regulations for Low-efficiency Forest Reconstruction". Compared with LY/T 1690-2007, it mainly has the following Variety. --- Referenced normative documents "Afforestation Technical Regulations" and "Forest Breeding Regulations" were changed to.2016 and.2015 revised editions respectively. --- Increase the "principle of low-efficiency forest transformation" (see Chapter 4). --- Increase the terminology and definition of "target forest" (see 3.6). --- Type division, change "defective forest" and "inferior forest" (see 4.1.1.1, 4.1.1.2 of.2007 edition) to "mildly degraded secondary forest" “Severely degraded secondary forests” (see 5.1.1, 5.1.2), named the combination of inefficient plantations. --- Judging criteria, the unified general standards, ecological standards, economic standards (see.2007 edition of 4.2.2, 4.2.3, 4.2.4), The criteria for judging are presented one by one according to the type of inefficient forest (see Chapter 5). ---Technical requirements, change the high limit of the replacement area of a contiguous operation to 4hm2 (see 5.2.6 of the 6.1.6 and.2007 editions). Add “reconstruction goals” (see 6.2.3). --- Adjust the "inefficient forest small class status and transformation design table" (see Appendix A). --- Increase the "low-efficiency forest transformation work small class score sheet" (see Appendix B). --- Add "References". This standard was proposed by the State Forestry Administration. This standard is under the jurisdiction of the National Afforestation Standardization Technical Committee (SAC/TC385). This standard was drafted. Institute of Resource Information, Chinese Academy of Forestry, Department of Afforestation and Greening Management of the State Forestry Administration. The main drafters of this standard. Wang Hong, Lu Yuanchang, Wu Xiuli, Lei Xiangdong, Jiang Sanwei, Xie Yangsheng, Zeng Xianyu, Liu Xianyu, Liu Wei, Lu Jun, Cheng Zhichu, Yan Qingfeng. This standard was first published in.2007 and revised for the first time in.2017. Low-efficiency forest transformation technical regulations

1 Scope

This standard specifies the principles, types of division, evaluation indicators, transformation methods and techniques, operation design, construction management, and monitoring of low-efficiency forest transformation. And the content and requirements of file management. This standard applies to the production technology activities and management of low-efficiency forest transformation in the country. The inefficient forests referred to in this standard include secondary forests and plantations, including shelter forests, timber forests, economic forests and firewood forests.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB 6000 Main afforestation tree seedling quality grading GB 7908 forest tree seed quality classification GB/T 15163 Fengshan (sand) forestry technical regulations GB/T 15776 Afforestation Technical Regulations GB/T 15781-2015 Forest tending procedures GB/T 18337.3-2001 Technical regulations for the construction of ecological public welfare forests

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Inefficient forest lowfunctionforest Affected by human or natural factors, the structure and stability of the stand are imbalanced, the growth and development of the forest is delayed, and the system function is degraded or lost, leading to the forest. The ecological function of forests, the yield or biomass of forest products are significantly lower than the average level of the same forest under the same site conditions, and the stand that does not meet the breeding target General name. Inefficient forests can be divided into inefficient secondary forests and inefficient plantations by origin. 3.2 Inefficient forest transformation restorationoflowfunctionforest In order to give full play to the production potential of inefficient forest land, improve the quality, stability and benefit level of forest stand, the structure and adjustment of the forest stand adopted Or a general term for forest management measures such as tree species. 3.3 Stand structure standstructure The distribution of forests of different diameters, tree heights and ages in the stand, and the mixed forests also include tree species composition and forest layers. 3.4 Strip (patch) restoration The way to rebuild the retaining belt (block) and the retrofit belt (block) in the retrofit belt (block) is drawn.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of LY/T 1690-2017_English be delivered?

Answer: Upon your order, we will start to translate LY/T 1690-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of LY/T 1690-2017_English with my colleagues?

Answer: Yes. The purchased PDF of LY/T 1690-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version LY/T 1690-2017?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version LY/T 1690-2017 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.