气候变化领域集成服务门户(CCPortal): Comparable water use of two contrasting riparian forests in the lower Heihe River basin, Northwest China

CCPortal

DOI	10.1007/s11676-017-0540-2
	Comparable water use of two contrasting riparian forests in the lower Heihe River basin, Northwest China
	Yu, Tengfei; Feng, Qi; Si, Jianhua; Zhang, Xiaoyou; Xi, Haiyang; Zhao, Chunyan
发表日期	2018
ISSN	1007-662X
EISSN	1993-0607
卷号	29 期号:5
英文摘要	Understanding forest ecosystem evapotranspiration (ET) is crucial for water-limited environments, particularly those that lack adequate quantified data such as the lower Heihe River basin of northwest China which is primarily dominated by Tamarix ramosissima Ledeb. and Populus euphratica Oliv. forests. Accordingly, we selected the growing season for 2 years (2012 and 2014) of two such forests under similar meteorological conditions to compare ET using the eddy covariance (EC) technique. During the growing seasons, daily ET of T. ramosissima ranged from 0.3 to 8.0 mm day(-1) with a mean of 3.6 mm day(-1), and daily ET of P. euphratica ranged from 0.9 to 7.9 mm day(-1) with a mean of 4.6 mm day(-1) for a total of 548 and 707 mm, respectively. The significantly higher ET of the P. euphratica stand was directly linked to high soil evaporation rates under sufficient water availability from irrigation. When the soil evaporation was disregarded, water use was comparable to two contrasting riparian forests, a P. euphratica forest with a total transpiration of 465 mm and a T. ramosissima forest with 473 mm. Regression analysis demonstrated that climate factors accounted for at least 80% of ET variation in both forest types. In conclusion, water use of the riparian forests was low and comparable in this arid region, that suggest the long-term plant adaptation to the local climate and conditions of water availability.
关键词	Eddy covariance Evapotranspiration Heihe River basin Riparian forest
学科领域	Forestry
语种	英语
WOS研究方向	Forestry
来源期刊	JOURNAL OF FORESTRY RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111988
作者单位	Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Alxa Desert Ecohydrol Expt Res Stn, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Yu, Tengfei,Feng, Qi,Si, Jianhua,et al. Comparable water use of two contrasting riparian forests in the lower Heihe River basin, Northwest China[J]. 中国科学院西北生态环境资源研究院,2018,29(5).
APA	Yu, Tengfei,Feng, Qi,Si, Jianhua,Zhang, Xiaoyou,Xi, Haiyang,&Zhao, Chunyan.(2018).Comparable water use of two contrasting riparian forests in the lower Heihe River basin, Northwest China.JOURNAL OF FORESTRY RESEARCH,29(5).
MLA	Yu, Tengfei,et al."Comparable water use of two contrasting riparian forests in the lower Heihe River basin, Northwest China".JOURNAL OF FORESTRY RESEARCH 29.5(2018).