干旱区生态环境知识资源中心(Arid): Estimation of Evapotranspiration in the Desert-Oasis Transition Zone Using the Water Balance Method and Groundwater Level Fluctuation Method-Taking the Haloxylon ammodendron Forest at the Edge of the Gurbantunggut Desert as an Example

Arid

DOI	10.3390/w15061210
	Estimation of Evapotranspiration in the Desert-Oasis Transition Zone Using the Water Balance Method and Groundwater Level Fluctuation Method-Taking the Haloxylon ammodendron Forest at the Edge of the Gurbantunggut Desert as an Example
	Jiao, Ping; Hu, Shun-Jun
通讯作者	Hu, SJ
来源期刊	WATER
EISSN	2073-4441
出版年	2023
卷号	15 期号:6
英文摘要	Shallow groundwater is an important water source for Haloxylon ammodendron (H. ammodendron). The accurate estimation of evapotranspiration (ETg) from groundwater is of great significance for the water cycle and the maintenance of ecological stability. Using a combination of the water balance method and the groundwater level fluctuation method (WTF), the water balance components (precipitation, soil moisture, groundwater depth, and Bowen ratio meteorological data) in the desert-oasis transition zone were continuously monitored from 2015 to 2018 and the ETg was estimated The results showed that the closed degree of Bowen specific energy after data screening was higher, and the annual actual evapotranspiration (ETa) value could be reliably calculated at 260.87 mm. As the main contributor to water consumption in the growing season, latent heat accounted for 70.16 similar to 91.86% of the energy balance. Precipitation had no significant impact on water consumption for H. ammodendron vegetation growth, and the precipitation in the main growing season accounted for 59.44% of the ETa. The groundwater depth in the study area decreased yearly and had a significant impact on the growth of H. ammodendron vegetation. Although the groundwater depth in the study area was greater than 9 m, the ETg, as an important part of the water balance, was found to participate in the evapotranspiration process brought about by H. ammodendron due to the strong root system and supporting capillary water in the soil. The actual evapotranspiration ETa for H. ammodendron in the main growing season was 244.32 mm, and the contribution rate for ETg was as high as 74.78% or approximately 182.35 mm. After the ETg was verified using the water balance method and WTF, R was greater than 0.96, the RMSE range was 1.5931 similar to 4.5706, the bias range was -0.15 similar to 0.11, and the IOA value was greater than 0.95. The accuracy of the estimation model was high, and the results were relatively accurate. The model can be applied in the desert-oasis transition zone to obtain accurate ETg estimations and provide theoretical guidance and a scientific basis for local water resource management and ecological protection.
英文关键词	shallow groundwater water balance method groundwater level fluctuation method Haloxylon ammodendron bush groundwater evapotranspiration
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000959528400001
WOS关键词	TABLE FLUCTUATIONS ; CAPILLARY RISE ; SALINE WATER ; SOIL ; IRRIGATION ; DEPTH ; BASIN ; FIELD ; PRECIPITATION ; VEGETATION
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/399003
推荐引用方式 GB/T 7714	Jiao, Ping,Hu, Shun-Jun. Estimation of Evapotranspiration in the Desert-Oasis Transition Zone Using the Water Balance Method and Groundwater Level Fluctuation Method-Taking the Haloxylon ammodendron Forest at the Edge of the Gurbantunggut Desert as an Example[J],2023,15(6).
APA	Jiao, Ping,&Hu, Shun-Jun.(2023).Estimation of Evapotranspiration in the Desert-Oasis Transition Zone Using the Water Balance Method and Groundwater Level Fluctuation Method-Taking the Haloxylon ammodendron Forest at the Edge of the Gurbantunggut Desert as an Example.WATER,15(6).
MLA	Jiao, Ping,et al."Estimation of Evapotranspiration in the Desert-Oasis Transition Zone Using the Water Balance Method and Groundwater Level Fluctuation Method-Taking the Haloxylon ammodendron Forest at the Edge of the Gurbantunggut Desert as an Example".WATER 15.6(2023).