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GB/T 34809-2017: Drought grade of sugarcane
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Drought grade of sugarcane
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GB/T 34809-2017
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Basic data | Standard ID | GB/T 34809-2017 (GB/T34809-2017) | | Description (Translated English) | Drought grade of sugarcane | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B18 | | Classification of International Standard | 07.060 | | Word Count Estimation | 10,141 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | 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 34809-2017: Drought grade of sugarcane---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 sugarcane
ICS 07.060
B18
National Standards of People's Republic of China
Sugarcane drought disaster rating
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. Guangxi Zhuang Autonomous Region Institute of Meteorology and Disaster Reduction, Guangxi Academy of Agricultural Sciences Agricultural Resources and Environment Research
Institute, Guangxi Zhuang Autonomous Region Meteorological Information Center.
The main drafters of this standard. Kuang Zhaomin, Li Li, Luo Yongming, Ou Zhao Rong, Yang Shao-chan, Xia Xiaoman, Li Yuhong, He Yan, Wang Zhengfeng.
Sugarcane drought disaster rating
1 Scope
This standard specifies the sugarcane drought disaster indicators and grading.
This standard applies to China's sugar cane production areas of drought cane investigation, monitoring, early warning and assessment.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
Sugarcane drought disaster droughtofsugarcane
Due to soil drought or atmospheric drought, it is difficult for roots of sugar cane to absorb moisture absorbed from the soil to compensate for transpiration, leaving the plant body moisture
Unbalanced income and expenditure, the normal growth and development of sugarcane are affected and even died, and eventually lead to reduced production and lower quality.
2.2
Describe the level of cane drought disaster.
3 classification and indicators
3.1 classification
The level of sugarcane drought disaster is divided into 4 grades, namely 1, 2, 3 and 4 respectively. The corresponding types of drought disaster are mild drought, moderate drought, heavy drought and special drought.
The soil relative humidity index, sugarcane water deficit anomaly index and sugarcane morphological index were used to define.
3.2 Level Indicators
3.2.1 Sugarcane drought hazard rating based on soil relative humidity index (Rsm)
The rank of soil relative humidity index (Rsm) is shown in Table 1.
The calculation method of soil relative humidity index is shown in Appendix A.
Table 1 Disaster rating based on soil relative humidity index (Rsm)
Level type
Soil relative humidity index
1 light drought 60≤Rsm < 65
2 drought 55 ≤ Rsm < 60
3 Drought 45 ≤ Rsm < 55
4 special drought Rsm < 45
3.2.2 Sugarcane drought disaster rating based on the index of water deficit
The grades of the water deficit anomaly index (CWDIa) are shown in Table 2.
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