GB/T 29366-2012 English PDF

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GB/T 29366-2012: Drought grade of grassland in northern pastoral area
Status: Valid

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Basic data

Standard ID: GB/T 29366-2012 (GB/T29366-2012)
Description (Translated English): Drought grade of grassland in northern pastoral area
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A47
Classification of International Standard: 07.060
Word Count Estimation: 13,189
Regulation (derived from): National Standards Bulletin 2012 No. 42
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 drought in northern prairie pastoral level. This standard applies to the northern pastoral pasture growth on the prairie drought monitoring and assessment.

GB/T 29366-2012: Drought grade of grassland in northern pastoral area

---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.
Drought grade of grassland in northern pastoral area ICS 07.060 A47 National Standards of People's Republic of China Northern pastoral arid steppe Ratings Issued on. 2012-12-31 2013-07-20 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by the China Meteorological Administration. This standard by the National Standardization Technical Committee on Agricultural Meteorology (SAC/TC539) centralized. This standard was drafted. Qinghai Meteorological Bureau, Inner Mongolia Autonomous Region Meteorological Bureau, Xinjiang Uygur Autonomous Region Meteorological Bureau, China Meteorological Sciences RESEARCH Hospital study, Qinghai Province grasslands terminus. The main drafters of this standard. Yan Liang Dong, Chen Suhua, Zhoubing Rong, LI Feng-xia, Li Xinjian, Pang Liying, Liu Ling, Lixu Qian.

Introduction

Arid steppe is one of the most serious pastoral north of meteorological disasters, causing great economic losses to livestock production. Establish systems North prairie drought index and rank a standard, objective description of the northern prairie drought, the process of development and extent of the drought on the grassland Level Weather forecast, information services, and disaster prevention and reduction is significant. Northern pastoral arid steppe Ratings

1 Scope

This standard specifies the northern pastoral prairie drought levels. This standard applies to the monitoring and assessment of the northern pastoral pasture growth of prairie drought.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Northern pastoral grassland grasslandinnorthernpastoralarea Qinling Huaihe River in the north area of \u200b\u200bthe Natural Community in the raw land portion, which is directly used for vegetation harvesting or grazing Natural grassland livestock. 2.2 Arid steppe grasslanddrought Prolonged rainfall, causing air dry, water the soil so that water occurs pasture deficit, affect the normal forage turning green, growth and development Resulting in reduction of aboveground biomass of meteorological disasters. 2.3 Grassland maximum evapotranspiration grasslandpotentialevapotranspiration In the local natural environmental conditions within a certain period of time lots of water to fully meet the sum of the amount of water under the conditions of pasture transpiration and soil evaporation. 2.4 Evapotranspiration coefficient evapotranspirationcoefficient Actual evapotranspiration and potential evapotranspiration ratio. 2.5 On grassland biomass abovegroundbiomassofforage A time per unit area on the ground contained cumulative total forage dry matter. 2.6 Wilting humidity wiltingmoisture Wilting coefficient The growth of normal plants only due to lack of soil moisture, causing the plant to lose turgor, soil moisture, begin to stabilize during wilting. 2.7 Available soil moisture storage capacity availablesoilmoisture Sure (depth) of soil thickness contained more than wilting humidity moisture storage capacity. ......

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