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LY/T 2103-2013: Technical regulations on construction of volume table based at the groud diameter
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Technical regulations on construction of volume table based at the groud diameter
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LY/T 2103-2013
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Basic data | Standard ID | LY/T 2103-2013 (LY/T2103-2013) | | Description (Translated English) | Technical regulations on construction of volume table based at the groud diameter | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B60 | | Classification of International Standard | 65.020 | | Word Count Estimation | 20,293 | | Quoted Standard | LY/T 1646; Forestry Professional Technical Regulations Lin Zi Zi [1989] No. 58 | | Regulation (derived from) | State Forestry Bulletin 2013 No. 8; industry standard filing Notice No. 5 of 2013 (No. 161 overall) | | Issuing agency(ies) | State Forestry Administration | | Summary | This standard specifies: coke powder particle size less than 10mm-10mm ~ 25mm and size of small particles of coke product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and general requi | LY/T 2103-2013: Technical regulations on construction of volume table based at the groud diameter
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Technical regulations on construction of volume table based at the groud diameter
ICS 65.020
B60
People's Republic of China forestry industry standards
Root diameter timber table compilation of technical regulations
2013-03-15 released
2013-07-01 Implementation
State Forestry Administration released
Directory
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 samples, test sample selection and data acquisition 1
4.1 Tableting area and layout unit to determine 1
4.2 Sample Book Selection and Data Collection 1
4.3 test sample selection and determination 3
5 data processing 4
5.1 Abnormal data to determine 4
5.2 Abnormal data removal principle 4
5.3 Sample Validity 4
6 root diameter timber volume table preparation 4
6.1 Root diameter timber volume table preparation method 4
6.2 Root diameter - stump volume mathematical model for the establishment of root diameter timber table 5
6.3 root diameter - DBH mathematical model root diameter timber table 8
7 root diameter timber volume table preparation results 11
7.1 Root standing timber volume chart, or root diameter DB 11
7.2 Root diameter timber volume table or diameter DBH preparation report 11
7.3 The raw materials used in the compilation and testing 12
7.4 Other technical materials 12
Appendix A (Normative) Data Acquisition Survey 13
Appendix B (informative) common root diameter - timber volume mathematical model 15
Appendix C (informative) Common root diameter - DBH mathematical model 16
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard proposed by the State Forestry Administration Survey and Design Institute.
This standard by the National Forest Resources Standardization Technical Committee.
This standard was drafted. Survey and Design Institute of State Forestry Administration.
The main drafters of this standard. Weng Guoqing, Bai Weiguo, Li Hui, Cheng Cheng, Wang Hongchun, Wang Crane.
Root diameter timber table compilation of technical regulations
1 Scope
This standard specifies the root directory of the establishment of the number of samples of timber, data collection and processing, timber volume model selection, model solution, the model
Type inspection and stand volume table expansion and other technical requirements.
This standard applies to the root cause of the nationwide establishment and revision of timber volume table.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
LY/T 1646 Forest harvesting practices
The main technical regulations of forestry survey (Lin Zi [1989] No. 58)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Root diameter treerootdiameter
Trunk at a distance of 5 cm from the ground. For the root bulging species significantly rooted above the ground from the ground does not exceed 20cm Department
Diameter, in data acquisition, can be determined according to species.
3.2
Root diameter timber volume tabletabletablethetreerootdiameter
Taking root diameter as independent variable and standing timber volume as a function of dependent variable. Including forms, maps, mathematical models and other forms.
4 Table samples, test sample selection and data acquisition
4.1 Table area and layout unit to determine
4.1.1 Root diameter timber volume table area should be consistent with the one-dimensional timber volume table area. When there is no one dollar bill of lading, you can
Provincial administrative units, or provincial district for the tabulation area. Divisions within the province according to tree species (group) natural distribution area, forestry zoning or three districts
Watershed as a basis for the division.
4.1.2 In a table area, according to the species (group), the origin of the division table unit.
4.2 sample selection and data collection table
4.2.1 Number of samples
Before the formal collection of the catalog samples, the distribution of the species should be initially determined based on the analysis of existing data or field investigation, etc.
Diameter range and so on, and according to the diameter range and not less than five principles of the division of diameter class. The number of samples for each diameter class according to equation (1)
determine.
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