干旱区生态环境知识资源中心(Arid): 宁夏中部干旱带人工柠条茎流及蒸腾特征研究

Arid

	宁夏中部干旱带人工柠条茎流及蒸腾特征研究
其他题名	The Study on Sap Flow and Transpiration of Artificial Caragana korshinkii in the Arid Area of Central Ningxia Hui Autonomous Region
	余峰 1; 陈林2 ; 王峰 2; 刘华 2; 杜建民 2; 郭永忠 2; 李浩霞 2
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2011
卷号	18 期号:2 页码:143-147
中文摘要	采用包裹式茎流测定系统,2010年7月在宁夏盐池对人工栽植的柠条液流蒸腾和环境因子进行了昼夜连续观测,建立了柠条蒸腾的回归模型。结果表明:白天枝条液流速率与枝条的粗细呈正相关,枝条间的液流速率差异在白天大,夜间小;在晴天观测到的蒸腾耗水率日变化曲线出现午间降低现象。柠条在夜间存在液流和微弱蒸腾作用。柠条蒸腾耗水率与太阳辐射、气温、空气饱和差和空气相对湿度具有显著的相关性,得到了蒸腾耗水率与环境因子的的回归方程。
英文摘要	In July of 2010,daily sap flow of Caragana korshinskii was measured by Dynagage Systems,and the microclimate was monitored by Vantage Pro 2 Station in the stand of Caragana korshinskii plantation located in Yanchi County of Ningxia Hui Autonomous Region.The regressive models of transpiration estimated from sap flow were established based on the field observation data.The results showed that there was more sap flow flux founded in bigger diameter branch than that of in smaller one.The difference of sap flow flux between branches is much more significant in the daytime than that of in the night.It was found that there was a noon break phenomenon in the daily course of transpiration in the sunny day.Night-time sap flow and weak transpiration had been detected by Dynagage Systems.Transpiration of Caragana korshinskii was well correlated with solar radiation,air temperature,vapor pressure deficit(VPD),relative humidity.The regressive equations between the transpiration and environmental factors were better fitted with observed data.
中文关键词	人工柠条 ; 茎流 ; 蒸腾 ; 宁夏
英文关键词	artificial Caragana korshinskii sap flow transpiration Ningxia Hui Autonomous Region
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:4195829
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227103
作者单位	1.宁夏回族自治区治沙退耕站, 银川, 宁夏 750002, 中国; 2.宁夏农林科学院荒漠化治理研究所, 银川, 宁夏 750002, 中国
推荐引用方式 GB/T 7714	余峰,陈林,王峰,等. 宁夏中部干旱带人工柠条茎流及蒸腾特征研究[J],2011,18(2):143-147.
APA	余峰.,陈林.,王峰.,刘华.,杜建民.,...&李浩霞.(2011).宁夏中部干旱带人工柠条茎流及蒸腾特征研究.水土保持研究,18(2),143-147.
MLA	余峰,et al."宁夏中部干旱带人工柠条茎流及蒸腾特征研究".水土保持研究 18.2(2011):143-147.