GB/T 34809-2017 English PDF

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GB/T 34809-2017: Drought grade of sugarcane
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34809-2017	199	Add to Cart	3 days	Drought grade of sugarcane	Valid

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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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