GB/T 14071-2025Specification for examination and approval of variety of forest tree (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part

1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 14071-1993 "Standards for Approval of Improved Tree Varieties". Compared with GB/T 14071-1993, except for the structural adjustment and In addition to editorial changes, the main technical changes are as follows:

--- Changed the scope of application (see Chapter 1, Chapter 1 of the.1993 edition);

--- Changed the terms and definitions of forest tree varieties, forest tree variety approval and forest tree varieties (see 3.1, 3.3, 3.4,.1993 edition 3.1, 3.2, 3.4);

--- Added terms and definitions for regional trials of forest species (see 3.2);

--- Deleted the terms and definitions of improved variety identification and recognition (see

3.5 of the.1993 edition);

--- Changed the "Scope of Approval" for tree species (see Chapter 4, Chapter 4 of the.1993 edition);

--- Changed some index requirements for timber forest tree species (see 5.1,

5.1.1 of the.1993 edition);

--- Changed some index requirements for economic forest tree species (see 5.2,

5.1.2 of the.1993 edition);

--- Deleted the indicators of excellent traits of major economic tree species (see Appendix A of the.1993 edition);

--- Added index requirements for shelterbelt tree species and ornamental tree species (see 5.3, 5.4);

1 Scope

GB/T 14071-2025 is the Chinese national standard on specification for examination and approval of variety of forest tree, in the field of agriculture. The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up - which in practice is how most foreign buyers meet it. It was issued on 29 August 2025 by the State Administration for Market Regulation; Standardization Administration of China, and has been in force since 1 December 2025. Classification: ICS 65.020.20, CCS B61. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This document defines the terminology of forest tree variety approval, and stipulates the scope, variety indicators, regional test requirements and nomenclature of forest tree variety approval. rule. This document applies to the variety approval of timber forest tree species, economic forest tree species, shelter forest tree species and ornamental tree species.

2 Normative references

This document has no normative references.

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 variety of trees Artificially selected or discovered and improved, the product quantity and quality meet production needs, and can adapt to certain natural environments and cultivation conditions A forest tree population with consistent characteristics, morphological features, biological properties and relatively stable genetic traits. [Source: GB/T 16620-2023, 7.2.4, modified]

3.2 Multi-regional comparative trials to determine the suitable habitats, application values and promotion scope of forest tree varieties. [Source: GB/T 16620-2023, 7.2.6, modified]

3.3 The national or provincial forest variety approval committee will review and evaluate the characteristics of the applied variety and its regional test results, and determine its promotion Value and scope management procedures. [Source: GB/T 16620-2023, 13.11, with modifications]

3.4 Through testing and verification, it has been proven that in a certain afforestation area, its yield, quality, adaptability, and stress resistance are significantly better than the current main Propagating material of cultivated or promoted varieties. [Source: GB/T 16620-2023, 13.8, with modifications]

4 Scope of Review

Those who fall into any of the following situations may apply for forest variety approval.

---Excellent clones;

---Excellent family;