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| 不同地面覆盖对花椒冠层光能分布的影响 | |
| 引用本文： | 刘淑明,孙丙寅,王得祥.不同地面覆盖对花椒冠层光能分布的影响[J].干旱地区农业研究,2005,23(6):124-127. |
| 作者姓名： | 刘淑明 孙丙寅 王得祥 |
| 作者单位： | 1. 西北农林科技大学生命科学学院,陕西,杨凌,712100 2. 杨凌职业技术学院林学系,陕西,杨凌,712100 3. 西北农林科技大学林学院,陕西,杨凌,712100 |
| 基金项目： | 杨凌示范区科研基金（02KJ-10-2;2003JA19） |
| 摘 要： | 在陕西凤县大田生产条件下研究了种植三叶草、覆膜和覆秸秆3种地面覆盖方式对8 a生花椒林冠层光能分布的影响。结果表明,在树冠层,随高度升高,太阳总辐射、净辐射增加,地面反射辐射减小。各覆盖处理树冠下表面太阳总辐射与对照差异显著,覆膜、种植三叶草和覆秸秆林地的总辐射分别较对照低13.6%、6.4%和11.3%;树冠下表面接受的地面反射辐射差异最大,覆膜、种植三叶草和覆秸秆的林冠分别较对照高66.3%、21.4%和35.6%,树冠中部接受的地面反射辐射明显低于树冠下表面;不同覆盖处理的冠层净辐射垂直分布趋势基本一致,在冠层范围内,净辐射能的分布随高度升高呈指数规律增大。 |
| 关 键 词： | 地面覆盖 花椒 冠层 辐射能 |
| 文章编号： | 1000-7601（2005）06-0124-04 |
| 收稿时间： | 2005-06-17 |
| 修稿时间： | 2005年6月17日 |
The influence of different ground covering on the radiation energy distribution of Zanthoxylum bungeanum |
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| LIU Shu-ming,SUN Bing-yin,WANG De-xiang.The influence of different ground covering on the radiation energy distribution of Zanthoxylum bungeanum[J].Agricultural Research in the Arid Areas,2005,23(6):124-127. | |
| Authors: | LIU Shu-ming SUN Bing-yin WANG De-xiang |
| Abstract: | The radiation energy distribution of Zanthoxylum bungeanum ash tree crown were studied in the condition of covering film,straw pole and Trifolium repens on the ground of Z.bungeanum.The results showed that the solar total radiation and the net radiation increased with the height,but the reflecting radiation decreased.The total radiation below the tree crown of covering plastic film,straw pole and T.repens on the ground were decreased by 13.6%,6.4%, 11.3% than those of control test respectively.The reflecting radiation below tree crown from ground increased by 66.3%,21.4% and 35.6% by covering plastic film,planting T.repen and covering straw pole than that of control test,and the reflecting radiations below the tree crown from ground were higher than that of middle tree crown obviously.The vertical distribution tendency of net radiation in the tree crown were unanimous on the different covering methods,and the net radiation increased according to the index law with the rising of height. |
| Keywords: | grownd covering Zanthoxylum bungeanum tree crown radiation energy |
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