干旱区生态环境知识资源中心(Arid): 干旱绿洲植物叶片光合作用特性及季节变化规律

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	干旱绿洲植物叶片光合作用特性及季节变化规律
其他题名	Characteristics and seasonal variations of plant leaf photosynthesis in arid oasis
	韩拓; 冯丽丽; 马婷; 张琨; 白岩; 朱高峰
来源期刊	兰州大学学报. 自然科学版
ISSN	0455-2059
出版年	2016
卷号	52 期号:4 页码:492-497,504
中文摘要	针对西北干旱区绿洲经济作物葡萄树叶片光合作用特性及季节动态差异等相关问题,在甘肃省敦煌市南湖绿洲应用便携式光合作用-荧光测量系统GFS-3000,测定了无核白葡萄叶片的光合特性指标及相关生理、生态指标的季节变化.结果表明: 6-9月的净光合速率随光照强度的增加整体呈先上升后平稳的趋势,最大净光合速率与表观量子效率季节变化规律一致,光补偿点和暗呼吸速率季节变化规律一致,净光合速率随CO_2分数的升高快速上升,而后增速缓慢并逐渐趋于稳定,最后出现下降趋势.最大净光合速率和羧化速率季节变化规律一致,单位叶面积氮质量与最大净光合速率表现出正相关关系.
英文摘要	In order to research into leaf photosynthetic characteristics and seasonal dynamic changes of grapes, which is one of the economic crops, in arid oases of northwest China, a portable photosynthesis-fluorescence measurement system GFS-3000 was used to measure the leaf photosynthetic characteristics index and related physiological and ecological seasonal change index of thompson seedless grape in the Nanhu oasis, Dunhuang, Gansu Province. The result showed that with the increasing of light intensity, the net photosynthetic rate first increased and then tended to be stable on the whole in June, July, August and September. The maximum net photosynthetic rate and apparent quantum efficiency underwent similar seasonal variations. The seasonal variation law of light compensation point and dark respiration rate was consistent. With the elevating of CO_2 concentration, the net photosynthetic rate had a rapid linear rising stage, then became slower and gradually stabilized, even declined finally. The maximum net photosynthetic rate and carboxylation rate had similar seasonal variations. Nitrogen content in unit leaf area and the maximum net photosynthetic rate showed a positive correlation.
中文关键词	光合作用 ; 季节变化 ; 光响应曲线 ; CO_2响应曲线 ; 净光合速率
英文关键词	photosynthesis seasonal variation light response curve CO_2 response curve net photosynthetic rate
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5794060
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234547
作者单位	兰州大学资源环境学院, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	韩拓,冯丽丽,马婷,等. 干旱绿洲植物叶片光合作用特性及季节变化规律[J]. 兰州大学,2016,52(4):492-497,504.
APA	韩拓,冯丽丽,马婷,张琨,白岩,&朱高峰.(2016).干旱绿洲植物叶片光合作用特性及季节变化规律.兰州大学学报. 自然科学版,52(4),492-497,504.
MLA	韩拓,et al."干旱绿洲植物叶片光合作用特性及季节变化规律".兰州大学学报. 自然科学版 52.4(2016):492-497,504.