The meeting pointed out that food security concerns the overall situation of national economic development and social stability. The Party Central Committee and the State Council have always attached great importance to it and placed this work in a prominent position. At present, the overall situation of China's food security is good, the comprehensive production capacity of grain is steadily increasing, food supplies are increasingly abundant, and supply and demand are basically balanced. However, with the development of industrialization and urbanization, the increase in population and the improvement of people’s living standards, the demand for food consumption has grown rigidly; constraints on arable land, shortage of water resources, and climate change have become increasingly prominent for food production, and China’s grain supply and demand will remain tight for a long time. The state of balance ensures that all food is facing severe challenges.
The meeting stressed that we must base ourselves on the basic guarantee of domestic supply, increase support for policies and inputs, rely on scientific and technological advancement, increase comprehensive food production capacity, and accelerate the establishment of a food security system that meets the requirements of the development of a socialist market economy and conforms to China's national conditions. Through the implementation of the National Medium and Long-term Plan for Food Security, the self-sufficiency rate of grain will be stabilized at more than 95%. In 2010, the comprehensive grain production capacity will be stable at more than 1 trillion pounds, and in 2020, it will reach 1,080 billion pounds or more. To achieve this goal, we must make great determination and make big moves: (1) We must adhere to the long-term stability of the household contract responsibility system and promote the innovation of the institutional mechanism for agricultural operations. (b) Take strong measures to protect the arable land. There can be no relaxation. The total cultivated land in the country is not less than 1.8 billion mu, and the basic farmland is not less than 1.56 billion mu. (3) Make great efforts to strengthen the construction of agricultural infrastructure, especially the construction of farmland water conservancy, and steadily increase the basic farmland fertility and output capacity. (d) efforts to increase farmers' income. The country’s fiscal expenditures are mainly focused on the rural areas, gradually regulating grain prices, and increasing farmers’ grain subsidies on a yearly basis. (5) Strengthen the support of science and technology, vigorously promote the research of key agricultural technologies, and strive to increase the yield of grain, and strive to make major breakthroughs. (6) Continue to deepen the reform of the grain circulation system, improve the grain market system, and strengthen the grain logistics system. (seven) improve the grain reserve system, optimize the layout of reserves and species structure, and improve the regulatory mechanism of grain reserves. (8) Improve the agricultural service system and increase financial support for rural areas and agriculture. (9) To guide science and economize on the use of grain to create a good habit of cherishing food and fighting waste throughout the society.
The meeting stressed that to safeguard national food security, it is necessary to establish and improve the central and local food safety classification responsibility system, form an effective food safety supervision and inspection and performance appraisal system, and fully implement the grain governor responsibility system. We will continue to improve policies and further mobilize the enthusiasm of local people, various departments, and farmers in developing grain production.
The meeting pointed out that Jilin is one of the major grain-producing provinces in China, and it is also a key area with a large grain yield potential. To organize the implementation of the “Overall Plan for Capacity Building of Jilin Province's Production of 10 Billion Kilograms of Commodity Grainâ€, and to increase the grain production capacity of Jilin Province by more than 10 billion kilograms in five years or so, which is of strategic importance for safeguarding national food security. To implement this "Planning", we must adhere to the principle of connotative development and rationally determine the variety structure of grain for increased production based on market demand. Strengthen water resources verification and water conservation work, and improve ecological and environmental protection countermeasures. Adhere to multi-channel financing, increase support for food production in Jilin Province. The meeting demanded that relevant departments of the State Council and areas with greater grain yield potential should step up efforts to study plans and measures for increasing grain production.
Plastic Flowmeter is a widely used instrument in water treatment engineering, mainly used for flow detection, usually installed after the water pump, to control the water intake of each structure, currently the most widely used are electromagnetic flowmeter and ultrasonic flowmeter. In the selection of the flowmeter, the first thing to consider is the corrosiveness of the measured medium to the flow-passing parts, so as to avoid affecting the service life of the flowmeter due to the corrosion of the medium; During the design and installation process of the flowmeter, the length of the straight pipes before and after the flowmeter needs to be considered. Usually, the principle of 5D before and 3D after the flowmeter is followed. Here, D is the inner diameter of the pipe. If the length is insufficient, the measurement accuracy will be affected. When using an ultrasonic flowmeter, the distance between the first 10D and the rear 5D must be met, and the distance from the flowmeter to the water pump must be more than 30D.
When selecting the type, the flow rate of the medium in the pipeline needs to be between the maximum value and the minimum value of the selected flowmeter, and avoid approaching the maximum or minimum value, so as to avoid affecting the measurement accuracy.
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