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当前位置: 首页 > 文章 > 银木的光合与水分生理特性的研究 林业科学研究 2006,19 (2) 261-263
Position: Home > Articles > Study on Photosynthesis and Water Physiology of Cinnamomum septentrionale Forest Research 2006,19 (2) 261-263

银木的光合与水分生理特性的研究

作  者：
赵昌恒;方乐金
单  位：
黄山学院
关键词：
银木;光照强度;净光合速率;光补偿点;水分利用率
摘  要：
The paper studied the photosynthetic and water physiological characteristics of Cinnamomum septentrionale.The results indicated that the light saturation point of C.septentrionale was 1 301 μmol·m~(-2)·s~(-1),and the light compensation point was only approximately 17 μmol·m~(-2)·s~(-1).It had a quite low light compensation point and a higher saturation point.It belongs to a heliophytic tree species,but it also could tolerate shade,and was suitable to a multiple light condition.The utilization efficiency of water of C.septentrionale reached 3.476×10~(-3) g·g~(-1),more than those of Celtis sinensis,Ulmus gaussenii,Pteroceltis tatarinowii and Zelkova schneideriana and 1.88 times higher than that of Pterocarya stenoptera.The results suggested that the water utilization efficiency of C.septentrionale is high and has a similar drought-resistant ability with Ulmaceae plant.
译  名：
Study on Photosynthesis and Water Physiology of Cinnamomum septentrionale
作  者：
ZHAO Chang-heng,FANG Le-jin(Huangshan College,Huangshan 245041,Anhui,China)
关键词：
Cinnamomum septentrionale;illumination intensity;net photosynthetic rate;light compensation point;water utilization efficiency
摘  要：
The paper studied the photosynthetic and water physiological characteristics of Cinnamomum septentrionale.The results indicated that the light saturation point of C.septentrionale was 1 301 μmol·m~(-2)·s~(-1),and the light compensation point was only approximately 17 μmol·m~(-2)·s~(-1).It had a quite low light compensation point and a higher saturation point.It belongs to a heliophytic tree species,but it also could tolerate shade,and was suitable to a multiple light condition.The utilization efficiency of water of C.septentrionale reached 3.476×10~(-3) g·g~(-1),more than those of Celtis sinensis,Ulmus gaussenii,Pteroceltis tatarinowii and Zelkova schneideriana and 1.88 times higher than that of Pterocarya stenoptera.The results suggested that the water utilization efficiency of C.septentrionale is high and has a similar drought-resistant ability with Ulmaceae plant.

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