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GB/T 20482-2017: Grade of snow disaster in pastoral area
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GB/T 20482-2017	English	199	Add to Cart	3 days [Need to translate]	Grade of snow disaster in pastoral area
GB/T 20482-2006	English	279	Add to Cart	3 days [Need to translate]	Grade of pastoral area snow disaster

GB/T 20482-2017: Grade of snow disaster in pastoral area

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Grade of snow disaster in pastoral area ICS 07.060 A47 National Standards of People's Republic of China Replacing GB/T 20482-2006 Pastoral snow disaster rating 2017-09-07 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ Introduction IV 1 Scope 1 2 Terms and definitions 1 3 pastoral snow disaster level 1 Appendix A (informative) disaster situation 3 Reference 4

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 20482-2006 "pastoral snow disaster level." Compared with GB/T 20482-2006 main technical changes are as follows. --- Modify the English name; --- Introduction to the contents of the standard were refined; --- In the scope of the provisions of this standard has been amended (see Chapter 1 of the.2006 edition); --- Modify the pastoral snow disaster definition (see 2.1,.2006 edition 2.1); --- Modify the definition of snow depth (see 2.2,.2006 version 2.2); --- Modify the definition of the average height of herds (see 2.3,.2006 version 2.3); --- Modify the definition of the duration of snow cover (see 2.4,.2006 version 2.4); --- Modify the definitions and units of snow covered grazing degree (see 2.6,.2006 edition 2.6); --- Modify the snow area ratio definition and unit (see 2.7,.2006 edition 2.7); --- Modify the pasture snow level (see Chapter 3,.2006 edition Chapter 3); --- Increased pastoral snow scale rating table buried in the degree of snow covered by snow, the number of days of snow cover, snow area ratio interval values; --- Modify the appendix (see Appendix A,.2006 edition of Appendix A). This standard is proposed by China Meteorological Administration. This standard by the National Meteorological Disaster Prevention and Mitigation Standardization Technical Committee (SAC/TC345) centralized. This standard was drafted unit. Meteorological Bureau of Qinghai Province, Inner Mongolia Autonomous Region Meteorological Bureau. The main drafters of this standard. Li Haihong, Xiao construction, Chen Suhua, Jia Hongli, Tiger Man, Wang Zhenyu, Dai Hude, Zhou Shaolong, Zhang Haizhen. This standard replaces the standards previously issued as. --- GB/T 20482-2006.

Introduction

Snow disaster is one of the major meteorological disasters in pastoral areas in winter and spring. Due to the long duration of the snowstorm and the wide range of impacts, it is often given to local farmers and herdsmen Production and life caused serious harm, a direct threat to and restricted the development of animal husbandry in pastoral areas. Develop pastoral snow disaster standards, weather conditions are the most Important and most fundamental factor. In addition, snowstorms and forage apologies, livestock status, pasture types, pasture conditions and the ability to withstand disasters related. This revision, give full consideration to GB/T 20482-2006 "snow pasture grading" in the past 5 years, the actual business applications of snow buried grass The degree of snow cover, the duration of snow cover and the area affected by the disaster, the three key hazard factors in the Tibetan Plateau meadow grassland and Inner Mongolia grassland pasture One-of-a-kind and representative issues. At the same time, to solve the forecast and meteorological services, forecasters inconvenient operation and other issues. Pastoral snow disaster rating

1 Scope

This standard specifies the grade and division index of snow disaster in pastoral areas of China. This standard applies to the survey, statistics, assessment and release of snow calamities in pastoral areas of China.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Pasture snowdisasterinpastoralarea Due to a large area of snow buried grassland vegetation, and lasts longer, the normal walking and feeding of grazing livestock affect, resulting in A catastrophic catastrophe of large numbers of livestock herders and deaths. 2.2 Snow depth depth of snow cover The vertical depth from the snow surface to the ground. Note. Snow depth measurement according to the relevant provisions. 2.3 The average height of the grass group averageheightofgrass The vertical distance from the top of the grassland constructive species or dominant forage grass layer to the ground. 2.4 The number of snow days continuousdaysofperpetualsnowcover The number of consecutive days in which snow on the ground is stable is in days (d). 2.5 Snow cover areaofperpetualsnowcover The area of snow-covered grass in hectares (hm2). 2.6 Covered with snow degree of degree of buriedgrassbysnowcover The ratio of the snow depth to the average height of the grass group. R said. 2.7 Snow area ratio rateofsnowcover Pasture area grassland snow area and the actual grass area ratio. With S, the value is expressed as a percentage (%).

3 pastoral snow disaster rating

According to the degree of snow covered grazing, snow duration and snow area ratio of the three indicators of pastoral snowstorm, divided into mild disaster, disastrous, heavy Disaster and catastrophe four levels (see Table 1). Please refer to Appendix A for the possible disaster situations at each level. ...