干旱区生态环境知识资源中心(Arid): STUDY ON TRANSPIRATION CHARACTERISTICS OF Populus alba var. Pyrainidalis Bge. PLANTATION FOREST AND ITS RELATIONSHIP WITH ENVIRONMENTAL FACTORS: A CASE STUDY OF EASTERN LIAONING PROVINCE

Arid

	STUDY ON TRANSPIRATION CHARACTERISTICS OF Populus alba var. Pyrainidalis Bge. PLANTATION FOREST AND ITS RELATIONSHIP WITH ENVIRONMENTAL FACTORS: A CASE STUDY OF EASTERN LIAONING PROVINCE
	Shi, Xiaoliang; Bao, Yanfeng; Hou Ruiping; Wang, Tielong
通讯作者	Bao, YF
来源期刊	FRESENIUS ENVIRONMENTAL BULLETIN
ISSN	1018-4619
EISSN	1610-2304
出版年	2022
卷号	31 期号:11 页码:10617-10628
英文摘要	Populus alba var. pyramidalis Bge. is one of the most important shelterbelt tree species in northern China. At present, the tree is inability to adapt to the environment, due to the environmental changes in this region, and the transpiration and water consumption of P. bolleana changcs accordingly, these phenomena lead to the growth of P. bolleana declines and even death occur frequently. To date, knowledge about the dynamics of transpiration of P. bolleana in the eastern Liaoning Province of North China is quite limited. Thus, better understanding its physical response to environmental factors and exploring the mechanisms of forest transpiration can offer a theoretical basis for a reasonable tree-planting program in semi-arid regions. In the present study, a continuous sap flow observation of P. bolleana in eastern Liaoning Province was carried out by using the thermal dissipation sap flow probe (TDP) from May to October (the whole growing season) in 2018, and the microclimate in the forest was recorded simultaneously, then the dynamics of sap flow and its respond to the variation change of environmental factors were studied. The results indicated that the sap flow changes of P. bolleana were shown as the characteristics of seasonal transition, consistent with the changes of environmental factors, at the beginning of the growing season, sap flow of P. bolleana was substantial, the efficiency of water usage was low. Till the middle of the growing season, nocturnal sap flow rate was increasing, daytime sap flow was decreasing. The starting time of sap flow became late, transpiration rate rise slowly, and peak of sap flow was narrow, and duration time was shorter till the late of the growing season. The water consumption of P. bolleana fluctuated slightly between months. The nocturnal sap flow had a good continuity, it was accounting for about 7% of the total daily water consumption. The sap flow was greatly affected by environmental factors, among which, the air temperature, vapour pressure deficit (VPD), photosynthetic effective radiation (PAR), potential reference evapotranspiration (ET0), and soil volume water content showed a significant positive correlation relationship, while there was a negative correlation with relative humidity and average wind velocity, but the correlation was not strong. Considering the autocorrelation of environmental variables, the optimal model was formulated, the main influencing variables were air temperature, VPD, PAR, and ET0 in the growing season under fitting analysis and stepwise regression analysis.
英文关键词	Populus alba var. pyramidalis Bge. Plantation forest Thermal dissipation probe technique Transpiration Environmental variable
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000892066900009
WOS关键词	VAPOR-PRESSURE DEFICIT ; SEMIARID SANDY REGION ; PINUS-SYLVESTRIS ; CANOPY TRANSPIRATION ; SAP FLOW ; CONDUCTANCE ; SENSITIVITY ; MONGOLICA ; DYNAMICS ; DROUGHT
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392659
推荐引用方式 GB/T 7714	Shi, Xiaoliang,Bao, Yanfeng,Hou Ruiping,et al. STUDY ON TRANSPIRATION CHARACTERISTICS OF Populus alba var. Pyrainidalis Bge. PLANTATION FOREST AND ITS RELATIONSHIP WITH ENVIRONMENTAL FACTORS: A CASE STUDY OF EASTERN LIAONING PROVINCE[J],2022,31(11):10617-10628.
APA	Shi, Xiaoliang,Bao, Yanfeng,Hou Ruiping,&Wang, Tielong.(2022).STUDY ON TRANSPIRATION CHARACTERISTICS OF Populus alba var. Pyrainidalis Bge. PLANTATION FOREST AND ITS RELATIONSHIP WITH ENVIRONMENTAL FACTORS: A CASE STUDY OF EASTERN LIAONING PROVINCE.FRESENIUS ENVIRONMENTAL BULLETIN,31(11),10617-10628.
MLA	Shi, Xiaoliang,et al."STUDY ON TRANSPIRATION CHARACTERISTICS OF Populus alba var. Pyrainidalis Bge. PLANTATION FOREST AND ITS RELATIONSHIP WITH ENVIRONMENTAL FACTORS: A CASE STUDY OF EASTERN LIAONING PROVINCE".FRESENIUS ENVIRONMENTAL BULLETIN 31.11(2022):10617-10628.