The third national soil survey in 40 years will be conducted this year

2022-07-01 0 By

The Ministry of Agriculture and Rural Affairs announced on February 24 that the work plan for the third national soil census, the second in 40 years, has been officially released.The census will be launched in 2022 and aims to carry out a “comprehensive physical examination” of arable land, garden land, forest land and grassland across the country by 2025 to get a clear picture of soil quality and lay a foundation for maintaining the red line of arable land, protecting the ecological environment, optimizing the distribution of agricultural production and promoting high-quality agricultural development.According to the introduction, soil census is to find out the soil type and distribution law, find out the quantity and quality of soil resources and other important methods.The results of the census can provide scientific support for soil classification, planning and utilization, improvement and fertilizer cultivation, protection and management, and also provide decision-making basis for major policies of economic, social and ecological construction.With the economic and social development, the occupation of cultivated land has become more rigid. In order to further implement the responsibility of protecting cultivated land, strictly observe the red line of cultivated land and ensure national food security, it is necessary to know the quantity and quality of cultivated land.It has been 40 years since the second national soil survey, and the relevant data cannot fully reflect the current situation of soil quality in agricultural land. In order to implement the strategy of storing grain in land and storing grain in technology and keep the red line of cultivated land, it is necessary to know the quality of cultivated land.On the basis of the number of cultivated land identified in the third national land survey, it is urgent to carry out the work of soil three-general distribution and carry out the “comprehensive physical examination” of cultivated land.At the same time, the green transformation of agricultural development and high quality development, saving water and soil resources, and promote agricultural products quantity abundant, high quality and guide farmers and agricultural management main body for new planting soil, soil fertilization, and by land reform, improve the efficiency of agricultural production, promote rural industry and increasing farmers’ income to get rich is inseparable from the soil data as support, etc.The target of this survey is the soil of farmland, garden, forest, grassland and other agricultural land and some unused land, including the general survey of soil properties, soil types, soil site conditions, soil utilization and other contents.According to the plan, the third soil census will be launched in 2022, and trials will be carried out in more than 80 counties in 31 provinces, autonomous regions and municipalities directly under the Central Government.The general census will be carried out from 2023 to 2024, and the results will be summarized, accepted and summarized in 2025.The results of the census will form a national database of soil types, soil physicochemical and biological indicators of typical regions, soil degradation and obstacle data, and soil area data suitable for different land use types.At the same time, the trend and causes of soil changes in China over the past 40 years will be analyzed, and suggestions on measures to prevent soil degradation will be put forward.To carry out a thematic assessment on the degradation of black soil, salinization and acidification of arable soil, and put forward countermeasures for treatment and restoration.Source: Economic Information Daily Editor: CAI Xiaoyu