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中文摘要：
基于中国气象局沈阳大气环境研究所锦州农田生态系统定位观测站2004—2008年玉米各器官（根、茎和叶）生物量及相应环境因子的连续动态观测资料,检验了Friedlingstein模型在站点与日尺度上的适用性,并发展了基于施肥、土壤温度和土壤有效水分系数的玉米农田土壤有效养分系数模型,建立了基于功能平衡假说的日尺度的玉米光合产物的分配模型.结果表明：与Friedlingstein模型相比,本文所建的玉米光合产物分配模型能更好地模拟玉米光合产物分配动态,为准确模拟日尺度的玉米农田生态系统生产力提供了技术支持.
英文摘要：
By using the 2004-2008 observation data of maize biomass and related environmental factors from the Jinzhou Agricultural Ecosystem Research Station of Shenyang Institute of Atmospheric Environment under China Meteorological Administration （CMA）,the Friedlingstein model was validated and tested at station site and daily time scales.A model of soil available nutrient coefficient for maize field was developed,based on fertilization,soil temperature,and soil available water;and a daily time scale maize photosynthate allocation model was built,according to the functional equilibrium hypothesis.Comparing with Friedlingstein model,the daily time scale maize photosynthate allocation model could give more accurate simulation of photosynthate allocation in maize root,stem,and leaf,and provide technical support for accurate simulation of daily net primary productivity of maize agro-ecosystem.
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