LY/T 2657-2016 English PDF

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Basic data

Standard ID: LY/T 2657-2016 (LY/T2657-2016)
Description (Translated English): Tree biomass models and related parameters to carbon accounting for Cryptomeria fortunei
Sector / Industry: Forestry Industry Standard (Recommended)
Classification of Chinese Standard: B65
Word Count Estimation: 11,124
Date of Issue: 2016-07-27
Date of Implementation: 2016-12-01
Quoted Standard: LY/T 2258-2014; LY/T 2259-2014
Regulation (derived from): State Forestry Administration Announcement No.17 of 2016; Industry Standard Announcement No.16 of 2016 (No.204)
Issuing agency(ies): State Forestry Administration
Summary: This standard specifies the biomass biomass model of Cryptomeria fortunei and its compatible biomass conversion factor function, rhizome ratio function and carbon content. This standard is applicable to the measurement and monitoring of biomass and carbon storage of Cryptomeria fortunei.

LY/T 2657-2016: Tree biomass models and related parameters to carbon accounting for Cryptomeria fortunei

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Tree biomass models and related parameters to carbon accounting for Cryptomeria fortunei ICS 65.020.01 B65 People's Republic of China Forestry Industry Standard Standing wood biomass model and carbon measurement parameters---City Released on.2016-07-27 Implementation of.2016-12-01 State Forestry Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Forest Resources Management Department of the State Forestry Administration. This standard is under the jurisdiction of the National Forest Resources Standardization Technical Committee (SAC/TC370). This standard was drafted. State Forestry Administration Survey Planning and Design Institute, State Forestry Administration Central South Forestry Investigation Planning and Design Institute, State Forestry Administration East China Forestry Survey Planning and Design Institute. The main drafters of this standard. Zeng Weisheng, Xiong Zhiping, Lu Yagang, Gan Shishu, Xia Chaozong, Sun Jilin, Sun Weizhen, He Peng, Xu Zhiyang, Chen Xinyun, Yan Hongwei, Bai Weiguo. Standing wood biomass model and carbon measurement parameters---City

1 Scope

This standard specifies the standing biomass model of Cryptomeria fortuni and its compatible biomass conversion factor function and root. Stem ratio function and carbon coefficient. This standard applies to the measurement and monitoring of the biomass and carbon storage of cedar trees in China.

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. LY/T 2258-2014 Technical Specifications for Standing Timber Modeling Methods LY/T 2259-2014 Technical Specifications for Sample Collection of Standing Wood Biomass Modeling

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Standing timber biomass treebiomass The total dry weight of organic matter present in the standing timber at a certain moment, the biomass on the ground and the underground biomass, are expressed by MA and MB, respectively. Among them, the aboveground biomass includes four components. trunk (peeling), bark, branches (including fruit), and leaves (including flowers); underground biomass includes rhizomes and coarse roots. (diameter ≥ 10mm) and fine root (2mm ≤ diameter < 10mm), roots below 2mm in diameter are not included in root biomass and are included in the soil. Organic matter content. 3.2 Biomass conversion factor biomassconversionfactor The ratio of biomass to standing timber in forest trees (g/cm3 or t/m3), expressed in BCF. According to this parameter, the standing timber product can be V (10-3 m3) is converted to aboveground biomass MA (kg). When the biomass conversion factor is not constant, along with the forest DBD D (cm) and tree height When H(m) changes, the relationship between the biomass conversion factor and the DBH and tree height of the forest is called the biomass conversion factor function. 3.3 Rhizome than root-to-shootratio The ratio of forest underground biomass to aboveground biomass, expressed in RSR. Based on this parameter, underground organisms can be estimated from aboveground biomass MA. The amount of MB is obtained to obtain the whole tree biomass. When the rhizome ratio is not constant, the root-to-stem ratio and the forest will vary with the DBH and tree height H of the forest. The relationship between the DBH and the tree height is called the rhizome ratio function. 3.4 Wood density wooddensity The mass per unit volume of wood (g/cm3 or t/m3), expressed in WD. Usually divided into full dry density, air dry density and basic density, here The basic density of the trunk (including bark), that is, the ratio of the trunk dry mass to the trunk volume. ......

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