| 秸秆覆盖和灌溉对冬小麦农田光能利用率的影响 |
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| 引用本文： | 李全起,陈雨海,吴巍,于舜章,周勋波,董庆裕,余松烈.秸秆覆盖和灌溉对冬小麦农田光能利用率的影响[J].应用生态学报,2006,17(2):243-246. |
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| 作者姓名： | 李全起 陈雨海 吴巍 于舜章 周勋波 董庆裕 余松烈 |
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| 作者单位： | 山东农业大学农学院,泰安,271018 |
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| 基金项目： | 中国科学院试验站基金;山东省聊城市国家大型优质小麦生产基地项目 |
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| 摘 要： | 研究了秸秆覆盖和灌溉对冬小麦农田光能利用率的影响.结果表明,秸秆覆盖降低了冬小麦的基本苗、分蘖数及生育前期的叶面积指数，但到生育后期，覆盖处理的叶面积指数反而升高.覆盖和灌溉降低了光合有效辐射（PAR）的底层透射率和冠层反射率，使PAR总截获率升高.覆盖和灌溉主要增加了40～60 cm高度的PAR截获率.覆盖处理籽粒光能利用率降低，茎叶光能利用率和总光能利用率升高.
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| 关 键 词： | 秸秆覆盖 灌溉 冬小麦 光能利用率 |
| 文章编号： | 1001-9332(2006)02-0243-04 |
| 收稿时间： | 2005-01-11 |
| 修稿时间： | 2005-04-15 |
Effects of straw mulching and irrigation on solar energy utilization efficiency of winter wheat farmland |
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| LI Quanqi,CHEN Yuhai,WU Wei,YU Shunzhang,ZHOU Xunbo,DONG Qingyu,YU Songlie.Effects of straw mulching and irrigation on solar energy utilization efficiency of winter wheat farmland[J].Chinese Journal of Applied Ecology,2006,17(2):243-246. |
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| Authors: | LI Quanqi CHEN Yuhai WU Wei YU Shunzhang ZHOU Xunbo DONG Qingyu YU Songlie |
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| Institution: | College of Agronomy, Shandong Agricultural University, Taian 271018, China |
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| Abstract: | The study showed that straw mulching decreased the basic seedlings and tillers of winter wheat and the leaf area index (LAI) at earlier growth stage, but increased the LAI at latter growth stage. Straw mulching and irrigation reduced the transmittance and reflectance of PAR, resulting in the increase of PAR capture ratio mainly at the height of 40-60 cm. The solar energy utilization ratio of grain was decreased by straw mulching, while that of stem and leaf was increased. The total solar energy utilization efficiency of winter wheat could also be increased by straw mulching. |
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| Keywords: | Straw mulching Irrigation Winter wheat Solar energy utilization efficiency |
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