干旱区生态环境知识资源中心(Arid): 敦煌葡萄液流特征及耗水分析

Arid

	敦煌葡萄液流特征及耗水分析
其他题名	Analysis of Variation of Sap Flow Velocity and Water Consumption of Grapevine in the Nanhu Oasis,Dunhuang,China
	白岩; 朱高峰; 张琨; 马婷
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2015
卷号	35 期号:1 页码:175-181
中文摘要	基于热平衡原理,运用FLOW32包裹式植物茎流计对甘肃敦煌南湖地区无核白葡萄液流速率进行长期连续观测,并对多个气象因子开展同步测定,分析探讨不同天气条件下葡萄液流速率及气象因子的日变化特征,进行了液流速率与各气象因子的回归分析,建立了液流速率的多元曲线回归模型,分析了葡萄树的耗水规律。结果表明:在不同天气条件下无核白葡萄树液流速率日变化差异显著,日均液流速率晴天>阴天>雨天;液流速率与光合有效辐射、水汽压亏缺呈线性相关,与冠层温度、冠层相对湿度呈曲线相关,相关程度大小顺序为光合有效辐射>水汽压亏缺>冠层温度>冠层相对湿度;建立液流速率的多元曲线回归模型,为研究葡萄树潜在耗水能力提供了预测手段;对比分析了无核白葡萄树的耗水量,为当地农业灌溉及种植等提供了合理化建议。
英文摘要	By using FLOW32 sap flow sensors,the researchers employ the heat balance method to study sap flow velocity of grapevine in the Nanhu Oasis in Dunhuang,China.After detecting meteorological factors by automatic weather station,the paper analyzes the diurnal fluctuations of sap flow velocity of grapevine under different weather conditions,and conducts simple regression analysis between sap flow velocity of grapevine and meteorological factors,and establishes a multiple linear regression model to analyze the water-consuming pattern of grapevine.The result shows that,sap flow velocity varies in different weather conditions with statistical significance:the daily mean on sunny days is greater than that on cloudy days,with the rainy days the lowest.Analysis of partial correlations and regression analysis between sap flow velocity of grapevine and the main meteorological factors show that,sap flow velocity of grapevine correlates linearly with photosynthetically active radiation (PAR)and vapor pressure deficit(VPD),and correlates curve-linearly with canopy temperature (CT)and canopy relative humidity (CRH)in the pattern of PAR>VPD>CT> CRH.The result of multiple regression modeling can help better predict water consumption of grapevine (R~2=0.95),and comparative analysis of water consumption of grapevines can help improve the local agricultural watering and planting.
中文关键词	树干液流 ; 热平衡法 ; 蒸腾耗水 ; 回归分析
英文关键词	sap flow velocity heat balance method transpiration regression analysis
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:5337117
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/2XILL650/233711
作者单位	兰州大学干旱环境与气候变化协同创新中心, 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	白岩,朱高峰,张琨,等. 敦煌葡萄液流特征及耗水分析[J]. 兰州大学,2015,35(1):175-181.
APA	白岩,朱高峰,张琨,&马婷.(2015).敦煌葡萄液流特征及耗水分析.中国沙漠,35(1),175-181.
MLA	白岩,et al."敦煌葡萄液流特征及耗水分析".中国沙漠 35.1(2015):175-181.