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《Journal of Southwest China Normal University(Natural Science Edition)》 2008-06
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Analysis on the Effect of System Coupling on Increasing Farmland Carrying Capacity

ZHANG Can-qiang1, WANG Ji-jun2,31.The Economy and Management College of Northwest A&F University,Yangling,Shaanxi 712100;2.Northwest A&F University,Yangling,Shaanxi 712100;3.Institute of Soil and Water Conservation,Chinese Academy of Science and Ministry of Water Resources,Yangling,Shaanxi 712100  
Base on the analyses of the characteristics of farmland resources,system coupling is one of its properties.The significance of the property is that system coupling can influence farmland carrying capacity greatly. Farmland carrying capacity is a composition of forces.In other words it is a vector in mechanics,specified by the magnitude and direction of component of forces.System coupling adjusts the "magnitude" and "direction" of subsystem to increase farmland carrying capacity.The paper puts forward three methods increasing farmland carrying capacity through system coupling,including integrating different species,adjusting farmland use structure and compound management of planting,forestry,animal husbandry and fishery.
【Fund】: 国家自然科学基金资助项目“黄土丘陵区退耕区域农业生态经济系统耦合过程及其模式研究”(40771082)
【CateGory Index】: F301
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