GB/T 21986-2008 English PDF

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GB/T 21986-2008: Assessment of agroclimate impact: classification method of annual crop climate types
Status: Valid

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Basic data

Standard ID: GB/T 21986-2008 (GB/T21986-2008)
Description (Translated English): Assessment of agroclimate impact: classification method of annual crop climate types
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A47
Classification of International Standard: 07.060
Word Count Estimation: 7,748
Date of Issue: 2008-06-03
Date of Implementation: 2008-11-01
Quoted Standard: QX/T 50-2007
Regulation (derived from): Announcement of Newly Approved National Standards No. 9, 2008 (No. 122 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the division method of crop climate model year. This standard applies to agricultural business climate impact assessment, research and teaching and other fields.

GB/T 21986-2008: Assessment of agroclimate impact: classification method of annual crop climate types

---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.
Assessment of agroclimate impact. classfication method of annual crop climate types ICS 07.060 A47 National Standards of People's Republic of China Agriculture Climate Impact Assessment. Climate division method of crop type Posted 2008-06-03 2008-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by the China Meteorological Administration. The standard by the China Meteorological Administration Policy and Regulation Department. This standard by the Hubei Provincial Meteorological Bureau Wuhan Regional Climate Center is responsible for drafting, the Agriculture Department of Hubei Province, Hubei Province Meteorological Bureau to participate Drafted. The main drafters of this standard. WU Yi City, Chang Yuan industry, Renyao Wu, Zhang Zhen, Feng Ming, Li Guohua. Agriculture Climate Impact Assessment. Climate division method of crop type

1 Scope

This standard specifies the type of crops to climate division method. This standard applies to the field of agro-climatic impact evaluation of operational, research and teaching.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. QX/T 50-2007 surface weather observing practices - Part 6. air temperature and humidity observations

3 Terms and definitions

QX/T 50-2007 established as well as the following terms and definitions apply to this standard. 3.1 In December the previous year to November of that year. 3.2 Or accumulated temperature, precipitation, sunshine agricultural year or the number of crop growth period. 3.3 Agricultural Meteorology element values \u200b\u200bdeviate from the average of the degree of sequence. 3.4 The percentage of total agricultural meteorological anomalies sequence elements mean in%. 3.5 Agricultural year, or different combinations of types of agricultural crop growth period meteorological elements. 3.6 The sum of a time period, the daily average temperature, in degrees Celsius (℃).

4 Agricultural abnormal meteorological elements calculation and grading methods

4.1 air temperature, accumulated temperature, calculated abnormality degree of sunshine 4.1.1 average value calculated according to the formula (1). Yp = 1 state Σ ......

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