气候变化领域集成服务门户(CCPortal): Comprehensive Response of Daily Transpiration from Armeniaca sibirica Plantations to Meteorological and Soil Moisture/Temperature Conditions on the Semi-Arid Loess Plateau, China

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DOI	10.3390/f15020251
	Comprehensive Response of Daily Transpiration from Armeniaca sibirica Plantations to Meteorological and Soil Moisture/Temperature Conditions on the Semi-Arid Loess Plateau, China
	Han, Xinsheng; Liu, Guangquan; Xu, Hao; Dong, Liguo; Wang, Xiao
发表日期	2024
EISSN	1999-4907
起始页码	15
结束页码	2
卷号	15 期号:2
英文摘要	Forest transpiration plays a vital role in the regional water budget and water supply security of the semi-arid Loess Plateau of northwest China. A thorough understanding and accurate predictions of the variation in the transpiration of forests with important tree species, e.g., Armeniaca sibirica (L.) Lam., are critical for land and water management. Owing to the extreme climatic seasonality and interannual variability, detailed information on the seasonal variation in the transpiration of Armeniaca sibirica plantations and its response to climatic and soil moisture/temperature fluctuations is limited. Therefore, in this study, the sap flux density and meteorological and soil moisture/temperature conditions were continuously monitored during the growing season (May to October) in 2019-2020. The results show the four following features: (1) The mean daily transpiration of the Armeniaca sibirica plantation was 0.31 mm.day(-1); (2) the daily transpiration varied nonlinearly with increasing potential evapotranspiration (PET). Transpiration first increased rapidly until reaching the PET threshold of 4 mm.day(-1) and then slowly increased within the PET range of 4-8.5 mm.day(-1), but thereafter, it decreased slightly when PET exceeded 8.5 mm.day(-1); (3) the daily forest transpiration varied with increasing relative extractable soil water content (REW) and soil temperature (ST) following a saturated exponential function; i.e., it first increased until reaching a threshold of 0.5 of REW or 14 degrees C of ST, but thereafter tended to stabilize; (4) models for estimating the daily forest transpiration were established. According to these models, PET had the greatest limiting effect (32.17%) on forest transpiration during the observation period, while REW and ST showed lower limits at 7.03% and 3.87%, respectively. The findings of this study are useful for understanding and managing the hydrological effects of forests in the semi-arid Loess Plateau as a typical dryland with seasonal droughts.
英文关键词	tree transpiration; potential evapotranspiration; soil moisture; soil temperature; ecological economic forest; apricot; semi-arid region
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:001173229400001
来源期刊	FORESTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304154
作者单位	China Institute of Water Resources & Hydropower Research; Ningxia Academy of Agricultural & Forestry Sciences; Chinese Academy of Forestry; Research Institute of Forest Ecology, Environment and Protection, CAF
推荐引用方式 GB/T 7714	Han, Xinsheng,Liu, Guangquan,Xu, Hao,et al. Comprehensive Response of Daily Transpiration from Armeniaca sibirica Plantations to Meteorological and Soil Moisture/Temperature Conditions on the Semi-Arid Loess Plateau, China[J],2024,15(2).
APA	Han, Xinsheng,Liu, Guangquan,Xu, Hao,Dong, Liguo,&Wang, Xiao.(2024).Comprehensive Response of Daily Transpiration from Armeniaca sibirica Plantations to Meteorological and Soil Moisture/Temperature Conditions on the Semi-Arid Loess Plateau, China.FORESTS,15(2).
MLA	Han, Xinsheng,et al."Comprehensive Response of Daily Transpiration from Armeniaca sibirica Plantations to Meteorological and Soil Moisture/Temperature Conditions on the Semi-Arid Loess Plateau, China".FORESTS 15.2(2024).