干旱区生态环境知识资源中心(Arid): 干旱绿洲区葡萄冠层上下方叶片气孔导度特征

Arid

	干旱绿洲区葡萄冠层上下方叶片气孔导度特征
其他题名	Characteristics of stomatal conductance in the upper and lower leaves of grape canopy in an arid oasis region ecosystem
	赵楠; 朱高峰; 张扬; 秦文华; 陈惠玲
来源期刊	兰州大学学报. 自然科学版
ISSN	0455-2059
出版年	2021
卷号	57 期号:4 页码:510-517
中文摘要	基于2019年敦煌干旱绿洲区葡萄地实测数据对无核白葡萄冠层上下方叶片气孔导度特征进行研究.结果表明,冠层上方叶片气孔导度远高于冠层下方,出现这种差异主要受太阳辐射的影响.冠层上下方均受水汽压亏缺和温度的影响,冠层上方还主要受净辐射的影响,且叶片气孔导度与环境因子呈现迟滞回环关系.当叶水势极负时,为避免叶片严重缺水,气孔导度迅速降低;夜间冠层上下方叶片气孔导度大致相等但不为0,无核白葡萄在土壤水分不亏缺的情况下存在夜间蒸腾.
英文摘要	The leaf stomatal conductance of seedless white grape was studied based on the data measured in 2019 in an arid oasis region ecosystem and the results showed that the leaf stomatal conductance above the canopy was much higher than that below the canopy,and it was believed that the difference was mainly influenced by solar radiation.Further analysis of the relationship between leaf stomatal conductance and meteorological factors showed that both the upper and lower canopy were affected by vapour pressure deficiency and temperature,the above canopy was mainly affected by net radiation,and the relationship between stomatal conductance and these environmental factors was hysteretic.It was observed that when the environmental factors caused extremely negative leaf water potential,leaf stomatal conductance decreased rapidly to avoid serious water shortage.The stomatal conductance of the leaves above and below the canopy at night was approximately equal and non-zero;thus it was considered that there was a nocturnal transpiration of seedless white grape under the condition that soil water was not deficient.
中文关键词	无核白葡萄 ; 气孔导度 ; 叶水势 ; 环境因子 ; 迟滞回环
英文关键词	seedless white grape stomatal conductance leaf water potential environmental factor hysteresis loop
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Plant Sciences
CSCD记录号	CSCD:7033863
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377768
作者单位	赵楠, 兰州大学资源环境学院, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国.; 朱高峰, 兰州大学资源环境学院, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国.; 张扬, 兰州大学资源环境学院, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国.; 秦文华, 兰州大学资源环境学院, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国.; 陈惠玲, 兰州大学资源环境学院, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国.
推荐引用方式 GB/T 7714	赵楠,朱高峰,张扬,等. 干旱绿洲区葡萄冠层上下方叶片气孔导度特征[J],2021,57(4):510-517.
APA	赵楠,朱高峰,张扬,秦文华,&陈惠玲.(2021).干旱绿洲区葡萄冠层上下方叶片气孔导度特征.兰州大学学报. 自然科学版,57(4),510-517.
MLA	赵楠,et al."干旱绿洲区葡萄冠层上下方叶片气孔导度特征".兰州大学学报. 自然科学版 57.4(2021):510-517.