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GB/T 34817-2017: Warning grade of agricultural drought
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Warning grade of agricultural drought
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GB/T 34817-2017
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Basic data | Standard ID | GB/T 34817-2017 (GB/T34817-2017) | | Description (Translated English) | Warning grade of agricultural drought | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B18 | | Classification of International Standard | 07.060 | | Word Count Estimation | 6,637 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | Regulation (derived from) | National Standard Announcement 2017 No. 29 | | 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 | GB/T 34817-2017: Warning grade of agricultural drought---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.
Warning grade of agricultural drought
ICS 07.060
B18
National Standards of People's Republic of China
Agricultural drought warning level
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by China Meteorological Administration.
This standard by the National Agricultural Meteorology Standardization Technical Committee (SAC/TC539) centralized.
This standard drafting unit. China Meteorological Administration Shenyang Institute of Atmospheric Environment, Chinese Academy of Agricultural Sciences Institute of Agricultural Resources and Regional Planning.
The main drafters of this standard. Zhang Yushu, Wang Chunyan, Ji Ruipeng, Chen Peng lion, Yu Wenying, Mina, Zhang Shujie, Feng Rui, Wu Jinwen, Cai Fu.
Introduction
Agricultural drought is one of the most serious meteorological disasters affecting agriculture in China. With the frequent occurrence of extreme weather and climate events, agriculture is dry
The frequency and intensity of drought also increased significantly, which seriously affected agricultural production and posed a threat to the national food security. Therefore, urgent need
It is necessary to carry out the warning service of agricultural drought level and provide a scientific basis for formulating emergency measures for drought relief and relief work by relevant state departments and governments at all levels.
Agricultural drought warning level
1 Scope
This standard specifies the level of agricultural drought warning.
This standard applies to the prevention of agricultural drought, mitigation of the impact of drought and early warning carried out.
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.
Agricultural drought rating
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Agricultural drought
The imbalance between supply and demand of farmland water caused by insufficient water supply hinders the normal growth and development of crops.
[GB/T 32136-2015, Definition 3.8]
3.2
Warning
An alert has been given to a disaster that has started, is on the way, or is about to happen.
4 warning level
According to the forecast of meteorological elements in the future, according to GB/T 32136-2015 calculate the agricultural drought level, according to the possible impact of agricultural drought
Level and range, the classification of agricultural drought warning level in China is divided into Ⅰ level (extra-large drought), Ⅱ-level (severe drought) and Ⅲ-level (moderate drought)
The classification of warning level is shown in Table 1.
Table 1 classification of agricultural drought warning
Agricultural drought
Warning level
National early warning Provincial level early warning (city) level early warning
Ⅰ level
(Extraordinarily dry)
Adjacent 2 or more provinces (from
Autonomous regions and municipalities directly under the Central Government) experienced major drought
Disaster, affected area affected area (self
Autonomous regions and municipalities directly under the Central Government) arable land total area
20% or more, and the affected area reached
1200 mu or more;
Or one of the provinces (autonomous regions and municipalities directly under the Central Government
City) In the event of a severe drought, it is possible
Affected area accounted for 25% of arable land
Above, and the affected area reached 1200
Mu or more
Two or more adjacent to each other
(Cities) major drought disaster, disaster
The area of the affected area (city) arable land
Over 30% of product
Or a certain place (city) occurred exceptionally large
Drought disaster, affected area affected area
(Cities) more than 35% of the total cultivated area
Two or more adjacent counties (districts) made
Excessive drought disaster, affected area affected
Disaster County (district) 40% of the total area of arable land
the above;
Or one of the counties (districts) in serious drought
Disaster, affected area affected affected counties (districts) farming
More than 45% of the total area
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