Comparison of water consumption of three urban greening trees in a typical arid oasis citiy, northwest China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Comparison of water consumption of three urban greening trees in a typical arid oasis citiy, northwest China
	Keyimu, Maierdang; Halik, Umut; Li, Zongshan; Abliz, Abdulla; Welp, Martin
刊名	ERDE
	2018
卷号	149 期号:2019-02-03 页码:173-183
关键词	oasis cities urban trees sap flow velocity water consumption Southern Xinjiang
ISSN号	0013-9998
文献子类	Article
英文摘要	In order to ensure sustainable development of arid oasis cities, close attention must be paid to the rational use of limited water resources. Since urban vegetation is one important user of water, urban greening activities should be adapted to local environmental conditions. In this study, one native (Morus alba L.) and two introduced urban greening tree species (Fraxinus sogdiana Bunge and Platanus acerifolia Willd.) were selected in Aksu - a typical oasis city in northwest China. Their stem sap flow velocity (SFV) was determined and diel water consumption was calculated. In the meantime, meteorological variables were recorded to analyze the water consumption strategy of these tree species. The results show that the average SFV of M. alba, F. sogdiana and P. acerifolia were 4.1 +/- 0.3 cm h(-1), 10.5 +/- 0.7 cm h(-1) and 22.3 +/- 2.6 cm h(-1), respectively. SFV was positively correlated with solar radiation (Rs), air temperature (Ta), vapor pressure deficit (VPD) and wind speed (Ws), and negatively correlated with air humidity (RH). Stepwise analysis showed that VPD had the highest impact on SFV of F. sogdiana (R-2=0.987) and M. alba (R-2=0.887), while the impact of RH was highest on P. acerifolia (Rd (2)=0.937). P. acerifolia had the highest sap flow daily accumulation (104 +/- 7 L tree(-1)), F. sogdiana was second (52 +/- 4 L tree(-1)), and third was M. alba (16 +/- 2 L tree(-1)). The water use efficiency (WUE) was M. alba (3.61 mmol mol(-1)) > F. sogdiana (3.33 mmol mol(-1)) > P. acerifolia (2.90 mmol mol(-1)). This study showed that native tree species developed certain adaptation strategies to the arid environment and thus consumed less water. Therefore, we recommend that in tree species selection by landscape planners as well as other decision makers, native tree species should be given priority in future urban greening projects.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40727]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Keyimu, Maierdang,Halik, Umut,Li, Zongshan,et al. Comparison of water consumption of three urban greening trees in a typical arid oasis citiy, northwest China[J]. ERDE,2018,149(2019-02-03):173-183.
APA	Keyimu, Maierdang,Halik, Umut,Li, Zongshan,Abliz, Abdulla,&Welp, Martin.(2018).Comparison of water consumption of three urban greening trees in a typical arid oasis citiy, northwest China.ERDE,149(2019-02-03),173-183.
MLA	Keyimu, Maierdang,et al."Comparison of water consumption of three urban greening trees in a typical arid oasis citiy, northwest China".ERDE 149.2019-02-03(2018):173-183.