The significance of soil moisture monitoring First, public opinion monitoring can provide scientific guidance and direct services for agricultural restructuring and important agricultural activities. According to the temporal and spatial evolution of soil moisture, the first is to accurately guide and organize farmers for the government departments, adjust the agricultural structure and production layout, and make scientific macro-decisions; second, it can be formulated and adopted for the agricultural technology promotion departments and farmers. The hydration irrigation and farmland water storage and conservation measures can provide a scientific basis for improving the efficiency of hydration and fertilization in dry land due to soil fertilization; thirdly, it can guide the construction of dryland agricultural field infrastructure according to local conditions and improve the investment efficiency of national capital construction. Secondly, Public opinion monitoring can provide an evaluation basis for verifying the national project construction investment and the effectiveness of agricultural technology services. Soil moisture monitoring is a basic public welfare undertaking for the development of dry farming, involving a lot of content, high technical content and strong applicability. The development of dry farming is focused on strengthening infrastructure construction in dryland farmland and improving overall production capacity. The level of public opinion monitoring and soil moisture conditions can reflect the quality of infrastructure construction and the effectiveness of national investment. Third, public opinion monitoring can provide a reference for the research and integration of agricultural water-saving technologies and drought-resistant and disaster-reduction technologies. With the development of dry farming in China and the implementation of the western development strategy, the research and development of high-efficiency and low-consumption water-saving technologies and drought-resistant and disaster-reducing adaptive planting techniques will surely become the focus of relevant departments. Through the exploration of the accumulation and evolution of soil moisture monitoring information, it can provide a rich basis for the innovation of new technologies and the transformation of results. Establishment of soil moisture monitoring points According to the regulations, the establishment of the soil fixed-point public opinion monitoring system should follow the following principles: First, in accordance with comprehensive considerations such as agricultural zoning, precipitation distribution, topography, soil characteristics, planting system, and agricultural production level, select local construction sites with strong representativeness, convenient sampling, strong sense of responsibility of the staff, and willingness of farmers to cooperate. Second, the core demonstration area of ​​the dry farming project must be built. Third, monitoring points must be stable for 3-5 years or longer. The fourth is to carry out networked distribution on the basis of the province, and implement it in the county. A simple monitoring network can also be established at the county level. 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