| 基于光响应的林一草模式冠层郁闭度研究 |
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| 引用本文： | 张学权.基于光响应的林一草模式冠层郁闭度研究[J].成都大学学报(自然科学版),2011,30(2):114-116. |
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| 作者姓名： | 张学权 |
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| 作者单位： | 成都大学旅游文化产业学院,四川成都,610106 |
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| 基金项目： | 科技部重大攻关项目——“四川盆周低山丘陵区水土流失综合治理技术与示范”(2001BA606A-06)资助项目 |
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| 摘 要： | 模拟设计5个不同遮荫梯度,运用Li-6400便携带式光合测定仪从扁穗牛鞭草光响应生理的角度对林草模式植被恢复后冠层郁闭度大小控制进行了初步探索.结果表明:强度较大的60％和79％的遮荫下扁穗牛鞭草的最大净光合速率分别约为全光照的44.3％和42.5％,表观光合量子速率相对较小,对低光照不敏感,不适应此遮荫环境；遮荫16...
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| 关 键 词： | 遮荫 扁稳牛鞭草 郁闭度 光响应 |
Study of Canopy Crown Density of Tree and Herbage Vegetation Model Based on Photoresponse |
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| ZHANG Xuequan.Study of Canopy Crown Density of Tree and Herbage Vegetation Model Based on Photoresponse[J].Journal of Chengdu University (Natural Science),2011,30(2):114-116. |
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| Authors: | ZHANG Xuequan |
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| Institution: | ZHANG Xuequan(School of Tourism and Culture Industry,Chengdu University,Chengdu 610106,China) |
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| Abstract: | Five different shading degree conditions were designed to preliminarily study the canopy density of trees and herbage vegetation model based on photoresponse characteristics of H.compressa(L.f) by using the Li-6400 portable photosynthetic determinator.The results shows that maximum net photosynthetic rate of H.compressa under the shading degrees of 60% and 79% was the 44.3% and 42.5% of the full exposure respectively which indicate that the photosynthetic quantum rate is relatively low and it is not sensiti... |
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| Keywords: | shade H compressa(L f) canopy density photoresponse |
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