| 不同水分、氮素条件下夏玉米生长的动态模拟 |
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| 引用本文： | 王康,沈荣开,覃奇志.不同水分、氮素条件下夏玉米生长的动态模拟[J].灌溉排水学报,2003,22(2):9-12. |
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| 作者姓名： | 王康 沈荣开 覃奇志 |
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| 作者单位： | 武汉大学,水利水电学院水利系,湖北,武汉,430072 |
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| 基金项目： | 国家自然科学基金“九五”重点资助项目 (5 983 93 2 0 ) |
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| 摘 要： | 作物干物质生长过程取决于光合作用所产生干物质的过程和呼吸作用消耗干物质的过程。建立了夏玉米生长和吸氮的耦合作用模型 ,根据气象条件和土壤水分、氮素状况 ,逐日计算夏玉米干物质形成过程和根系吸氮过程。模拟结果表明 ,模型较好地模拟了夏玉米光合作用 ,干物质生长和根系吸氮过程
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| 关 键 词： | 光合作用 干物质累积过程 动态模拟 根系吸氮 |
| 文章编号： | 1000-646X(2003)02-0009-04 |
A Dynamic Model of Simulating Corn Growth and Nitrogen Uptake under Various Soil Moisture and Nitrogen Conditions |
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| WANG Kang,SHEN Rong kai,QIN Qi zhi.A Dynamic Model of Simulating Corn Growth and Nitrogen Uptake under Various Soil Moisture and Nitrogen Conditions[J].Journal of Irrigation and Drainage,2003,22(2):9-12. |
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| Authors: | WANG Kang SHEN Rong kai QIN Qi zhi |
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| Abstract: | A model for simulating interaction between corn biomass accumulation and nitrogen uptake was established in this paper. Daily meteorological data, soil moisture and nitrogen contents were used as input data for calculating photosynthesis and respiration rate. Simulated results were compared with field measured data from tree treatments. The simulated daily photosynthesis rate, dry matter accumulation and nitrogen uptake were consistent well with the experimental data. |
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| Keywords: | photosynthesis biomass formation processes dynamic model nitrogen uptake |
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