干旱区生态环境知识资源中心(Arid): 单株油蒿蒸腾耗水特征及其与环境因素的关系

Arid

	单株油蒿蒸腾耗水特征及其与环境因素的关系
其他题名	Characteristics of Water Consumption of Artemisia Ordosica Through Transpiration and Its Relationships with Environmental Factors
	高浩; 秦树高; 朱林峰; 范冬庆; 陈东; 杨路明
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2016
卷号	36 期号:2 页码:76-81
中文摘要	[目的]探究油蒿的蒸腾耗水规律及其对环境因子的响应,旨在为固沙植被建设提供科学依据。 [方法]利用野外大型称重式蒸渗仪于2014年69月底对单株油蒿的蒸腾过程进行连续观测,并同步监测了土壤含水量及相关气象因子。[结果]油蒿单日蒸腾强度曲线在晴天表现为双峰曲线,而在阴雨天双峰曲线不明显;研究期间,单株油蒿蒸腾耗水量为101.66mm,日平均蒸腾强度为0.83mm/d。蒸渗仪内土壤蒸发量106.05mm,日平均土壤蒸发强度为0.87mm/d,试验期间蒸散量占降雨量的82.98%。降雨可以维持油蒿正常生长,并对土壤水分进行一定补充;油蒿蒸腾强度与空气相对湿度(p<0.01)、空气温度(p<0.01)、太阳净辐射(p<0.01)和20cm深度土壤体积含水量(p<0.05)具有很好的相关性,且相关性依次减小。 [结论]油蒿蒸腾耗水日变化明显,其蒸腾速率受土壤水分状况、气象条件及自身生理特征等因素的影响。
英文摘要	[Objective]Water consumption of Artemisia ordosica through transpiration was measured and its responses to environmental factors were researched to provide some hints for construction of sand-fixing vegetations. [Methods]The dynamic transpiration of Artemisia ordosica was continuously measured using a large-scale weighing lysimeter,and the soil moisture content and related meteorological factors were synchronously monitored.[Results]Mean daily transpiration intensity of Artemisia ordosica performed a bimodal curve in sunny days;while in rainy days,the mean daily transpiration intensity performed unimodal curve. Water consumption of Artemisia ordosica was 101.66mm during the study period,averaged 0.83mm/d per day.Soil evaporation in the lysimeter was 106.05mm,about 0.87mm/d.The evapotranspiration accounted for 82.98%of rainfall in the study period.Transpiration intensity of Artemisia ordosica were significantly correlated with environmental factors of relative air humidity(p<0.01),atmospheric temperature(p<0.01), net radiation(p<0.01),soil water content at 20cm depth(p<0.05)in a decreased rank.[Conclusion]Daily transpiration of Artemisia ordosica varied distinctly,and the transpiration rate was affected by soil moisture condition,meteorological factors and its own physical characteristics.
中文关键词	毛乌素沙地 ; 油蒿 ; 蒸腾 ; 环境因素 ; 蒸渗仪
英文关键词	Mu Us Desert,Artemisia ordosica transpiration environmental factors lysimeter
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:5694630
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234935
作者单位	北京林业大学水土保持学院, 宁夏盐池毛乌素沙地生态系统国家定位观测研究站;;水土保持与荒漠化防治教育部重点实验室, 北京 100083, 中国
推荐引用方式 GB/T 7714	高浩,秦树高,朱林峰,等. 单株油蒿蒸腾耗水特征及其与环境因素的关系[J]. 北京林业大学,2016,36(2):76-81.
APA	高浩,秦树高,朱林峰,范冬庆,陈东,&杨路明.(2016).单株油蒿蒸腾耗水特征及其与环境因素的关系.水土保持通报,36(2),76-81.
MLA	高浩,et al."单株油蒿蒸腾耗水特征及其与环境因素的关系".水土保持通报 36.2(2016):76-81.