作者: 禹城站 更新时间: 2022-12-03
Yucheng Station represents the high-yielding farmland ecosystem of the IRA-LRYR and the Huanghuaihai Plain in Shandong Province, which accounts for 35.7 % of farmland, 63.8 % of grain production and 48.3 % of livestock and poultry in Shandong Province. The agro-ecosystem is dominated by wheat-corn rotation, open field and facility vegetables, and livestock and poultry farming, and is an important area for high and stable agricultural production in Shandong Province and even in China.
Historically, the area where the Yucheng Station locates were severely suffered from drought, flooding, salinity and sand, with low agricultural production. The comprehensive drought, flooding and alkaline management project for the Huanghuaihai Plain organized by a number of national affiliations have led to a dramatic change in the structural function of the regional agro-ecosystem and a continuous increase in agricultural production capacity. However, with the evolution of the regional ecosystems and the further development of agriculture, new problems and needs have emerged, necessitating long-term observations and experimental research, mainly in the following aspects：
(1) The agricultural land in the area has been improved mainly from salt fluvo-aquic soil, which have been improved and are now highly productive, but the risk of secondary salinization still exists, so it is important to clarify the interrelationship between the soil and water-salt processes and environmental elements in the region, and how to improve soil quality and maintain the sustainability of farm productivity through scientific regulation.
(2) As the water cycle is a major driving factor of structural and functional changes in agro-ecosystems, there is an urgent need to understand the mechanisms of water transport, conversion and associated material transport and transformation in the region, and how they affect structural functions and changes in the regional patterns of agro-ecosystems.
(3) The development process of agricultural production directly affects the evolution of agro-ecological systems, and it is therefore important to clarify how to build healthy agro-ecological systems and improve their spatial layout through the optimization of the structure of agro-ecological systems and the regulation of integrated measures of agricultural production, in order to achieve the sustainable development of agriculture in China.
In summary, Yucheng station is to serve the national strategic needs and local agricultural development as the goal, closely follow the disciplinary development frontier of agro-ecosystems, carry out long-term observation, research and demonstration, and make important contributions in the accumulation of long series data, high-level scientific research results output, model demonstration with significant impact, etc.
Based on the characteristics and key scientific issues of the agro-ecosystem in the type area represented, the research direction of Yucheng Station is: taking the agricultural ecosystem of the IRA-LRYR as the research object, aiming at the efficient and comprehensive utilization of natural resources such as water, soil, atmosphere and biology and the sustainable development of the region, through the long-term accumulation of observation data, 1) to carry out in-depth research on the energy and material transport of the agricultural ecosystem and its conversion mechanism, model; 2) to carry out innovation in the measurement methods of farmland ecosystem processes and the improvement and development of instruments and equipment; 3) to study the processes, structures, functions and geospatial patterns of farmland ecosystems by combining theories, methods and tools from geography, ecology, agronomy and information science, to explore the response and adaptation mechanisms of farmland ecosystems under human activities and global changes, and to carry out optimal ecosystem management. The aim is to explore the response and adaptation mechanisms of agro-ecosystems under human activities and global changes, and to carry out experiments and demonstrations of optimal ecosystem management patterns and supporting technologies to provide scientific support for national food security, ecological security and environmental security.