生态学杂志2012，Vol.31Issue(3)：583-593,11.
太阳辐射减弱条件下冬小麦光合作用和干物质生产的模拟
Winter wheat photosynthesis and dry matter production under decreased solar irradiance:A simulation study
摘要
Abstract
A field experiment was conducted to assess the effects of decreased solar irradiation on the photosynthesis and dry matter production of winter wheat ( Triticum aestivum, variety Yangmai 13 ). Five treatments were installed, I. E. , 100% , 60% , 40% , 20% , and 15% of natural solar irradiation, with the photosynthesis and dry matter production at different growth stages meas-ured , and the forcing functions of photosynthetic rate, physiological age, temperature, CO2, and leaf area index revised. Then, a growth model reflecting the effects of varied solar irradiation on winter wheat photosynthesis and dry matter production was established. The established model could well reflect winter wheat photosynthetic rate and dry matter production under decreased so-lar irradiation. The average relative error of simulated photosynthetic rate and total dry matter mass was 4. 1% and 8. 3% , respectively. Under sufficient water and nutrient supply, the simu-lated photosynthetic rate and total dry matter mass in treatments 60% -15% of natural solar irra-diation decreased by 23% -48% and 35%-57% , respectively, as compared with those in treat-ment of 100% of natural solar irradiation.关键词
太阳辐射减弱/冬小麦/光合作用/干物质生产Key words
decreased solar irradiation/ winter wheat/ photosynthesis/ dry matter production分类
农业科技引用本文复制引用
郑有飞,徐静馨,吴荣军,麦博儒,孙健,李健..太阳辐射减弱条件下冬小麦光合作用和干物质生产的模拟[J].生态学杂志,2012,31(3):583-593,11.基金项目
江苏省高校自然科学研究重大项目(09KJA170004)、国家自然科学基金面上项目(41075114)和江苏省普通高校研究生科研创新计划项目(CX10B_291z)资助. （09KJA170004）
