Ministry of Science and Technology: Establishing Agricultural Meteorological Science and Technology Support System

[ China Agricultural Machinery Industry News ] Agricultural Meteorological Science and Technology has always insisted on making agricultural production services a top priority for meteorological services, strengthening the level of rural meteorological disaster monitoring, forecasting and early warning technology, establishing an agricultural meteorological science and technology support system to meet agricultural production needs, and improving meteorology. Serving agriculture's supply-side structural reform capability provides scientific guidance for agricultural production to prevent and mitigate disasters and to avoid disadvantages.

Ministry of Science and Technology: Establishing Agricultural Meteorological Science and Technology Support System

1. Facing the development needs of agrometeorological business, in-depth research on key technologies

Relying on national science and technology projects, the demand for agro-meteorological services for major crops such as wheat, rice and corn will focus on solving key scientific and technological problems, and the support for meteorological services for agricultural services will be significantly improved. The regression analysis of the water requirement and water use efficiency of different concentrations of CO2 and the corresponding temperature increase were carried out. The effects of winter and spring irrigation on the growth and grain yield of winter wheat in North China were analyzed. The fine soil moisture of winter wheat was constructed. And irrigation forecasting system; a risk assessment model for rice flood disasters in complex terrain in southwest China; a summer soil moisture estimation method based on ground remote sensing information and temperature was developed, and canopy water content indicators for remote sensing monitoring of maize drought process were proposed; Based on the summer maize drought simulation experiment data, the sensitivity index of summer maize different development indicators to drought was determined.

2. Vigorously promote the advancement of agricultural meteorological disaster monitoring and early warning technology

In response to the business application needs of agricultural meteorological disaster prevention and mitigation, the national and regional major agricultural meteorological disaster monitoring and evaluation, early warning prediction and risk assessment techniques and application research were carried out, which solved the “indicator creation, real-time monitoring, fine warning and rolling prediction, dynamics”. Critical technical issues such as evaluation. Developed agricultural drought in southwest China, low temperature disaster in southern double-season rice, dry and hot wind in wheat in Huanghuaihai, flood disaster in southern rice and maize, national wheat powdery mildew and rice planthopper meteorological indicators; developed regional agricultural drought, wheat dry hot air stereoscopic monitoring And dynamic assessment techniques, regional wheat drought, dry hot wind, rice low temperature disasters, national wheat powdery mildew, rice planthopper fine warning and rolling prediction technology; proposed a variety of agricultural meteorological disaster risk dynamic assessment, comprehensive evaluation and risk mapping technology, construction The technical system for dynamic monitoring and evaluation of agricultural meteorological disasters, forecasting and early warning and risk assessment has played an important supporting role in promoting the technological progress and business development of agricultural meteorological disaster monitoring and early warning assessment.

3. Strengthen and enhance the ability of agricultural meteorological grid and refined services

Using the refined grid data, the spatial resolution of agricultural meteorological impact forecast products was increased from 10km to 5km, and the forecast time scale was increased from 7 days to 10 days. The agricultural meteorological disaster impact forecast of 5km grid and the automatic production of agricultural weather forecast products have been basically realized, and the objectification level of forecast products has been improved. It has been applied in summer harvest summer weather service and summer high temperature impact assessment and forecast service.

4. Focus on improving the technical level of dynamic forecasting of major crop yields

Developed a monthly dynamic forecasting technology for rice yield based on the historical abundance meteorological impact index, key meteorological factor impact index and climate suitability index, and completed the development of a rice and cotton forecast function module in the National Agricultural Meteorological Disaster Service Guarantee System. Used in monthly reports and crop yield forecasting operations. Studies have shown that the average 30-year climate suitability and 30-year climatic suitability forecast are better than the original model.

5. Yield forecasting service has achieved remarkable results

Using statistical model and crop growth simulation model, remote sensing dynamic monitoring and analysis method, the winter wheat, cotton, corn, double season and early rice dynamic forecasting business services were carried out, and the crop yield was scientifically judged. The accuracy rate of winter wheat total production forecast in 2016 was 98.7%, and the forecast rate of early rice yield forecast was 98.6%. Crop yield forecast products were concerned by many departments such as the Ministry of Agriculture. In 2016, it also increased the production forecast products such as South American soybeans, expanded the service content, and achieved remarkable results in social services.


(Original title: Ministry of Science and Technology: Strengthening agricultural meteorological science and technology innovation to enhance agricultural production service capacity)