Effects of non-isothermal flow on groundwater recharge in a semi-arid region

Zhang, Zaiyong; Wang, Wenke; Gong, Chengcheng; Zhao, Ming; Wang, Zhoufeng; Ma, Haizhen

doi:10.1007/s10040-020-02217-8

Cited by 6 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To simplify the presentation of our results, root water uptake is only considered for cultivated lands under film‐mulched drip irrigation; it is ignored for uncultivated lands. In addition, we neglected the effect of heat transport on the soil water flow processes and represented flow as isothermal due to the limited observed soil temperature profiles (Zhang et al, 2021). HYDRUS‐1D (Šimůnek et al, 2008) was used to simulate 1D water flow for each test site in the MRB (Figure 1c).…”

Section: Methodsmentioning

confidence: 99%

Using bromide data tracer and HYDRUS‐1D to estimate groundwater recharge and evapotranspiration under film‐mulched drip irrigation in an arid Inland Basin, Northwest China

Chen

Wang

Liu

et al. 2021

Hydrological Processes

View full text Add to dashboard Cite

Accurate estimation of groundwater recharge (GR) and evapotranspiration (ET) are essential for sustainable management of groundwater resources, especially in arid and semi-arid regions. In the Manas River Basin (MRB), water shortage is the main factor restricting sustainable development of irrigated agriculture, which relies heavily on groundwater. Film-mulched drip irrigation significantly changes the pattern and dominant processes of water flow in the unsaturated zone, which increases the difficulty of GR and ET estimation. To better estimate GR and ET under filmmulched drip irrigation in the MRB, bromide tracer tests and soil lithologic investigation were conducted at 12 representative sites. A one-dimensional variably saturated flow model (HYDRUS-1D) was calibrated at each site using soil evaporation data inferred from the bromide tracer tests. The results showed that average annual soil evaporation in uncultivated lands calculated from bromide trace tests was 25.55 mm.The annual GR ranged from 5.5 to 37.0 mm under film-mulched drip irrigation. The annual ET ranged from 507.0 to 747.1 mm, with soil evaporation between 35.7 and 117.0 mm and transpiration between 460.9 and 642.3 mm. Soil evaporation represented 7% to 16% of the total ET and more than 70% of precipitation and irrigation water was used by cotton plants. Spatial variations of soil lithology, water table depth and initial soil water content led to the spatial differences of GR and ET in the MRB.Our study indicated that bromide tracer tests are useful for inferring ET in the arid and semi-arid oases. The combination of bromide tracer tests and HYDRUS-1D enhances reliability for estimation of GR and ET under film-mulched drip irrigation in the MRB and shows promise for other similar arid inland basins around the world.

show abstract

Section: Methodsmentioning

confidence: 99%

Using bromide data tracer and HYDRUS‐1D to estimate groundwater recharge and evapotranspiration under film‐mulched drip irrigation in an arid Inland Basin, Northwest China

Chen

Wang

Liu

et al. 2021

Hydrological Processes

View full text Add to dashboard Cite

show abstract

“…These changes have primarily two causes-first, the temperature in most areas has risen, extreme weather events have occurred more frequently, and rainfall patterns have changed; second, human activities have significantly altered the spatial patterns and intensity of groundwater recharge. In addition, the diurnal temperature ranges in arid and semi-arid area are large, and the effect of temperature and vapor flux on estimating groundwater recharge should be considered (Zhang et al 2021).…”

Section: Groundwater Rechargementioning

confidence: 99%

“…The number of extreme precipitation events has also increased in the arid and semi-arid region of China (Huang et al 2014). Increase in extreme rainfall events potentially leads to groundwater recharge increase (Zhang et al 2021). The potential opposing effects on recharge, in a context of climate change, is not well understood.…”

Section: Effect Of Climate Changementioning

confidence: 99%

“…The International Atomic Energy Agency (IAEA) estimates that the greater part of groundwater in arid and semi-arid regions is fossil water and its use is not sustainable (Scanlon et al 2006). Accordingly, for the sustainable management of groundwater resources to satisfy human and ecosystem demands, groundwater recharge and discharge should be accurately estimated (Zhang et al 2021).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Topical Collection: Groundwater recharge and discharge in arid and semi-arid areas of China

et al. 2021

Self Cite

View full text Add to dashboard Cite

The arid and semi-arid regions within China host 75% of the country's cultivated lands. These regions heavily rely on groundwater for drinking, irrigation, industry and energy production. Understanding recharge and discharge processes is critical to managing sustainable use and development of groundwater resources. Recently, groundwater recharge and discharge have been altered by climate change (air temperature, rainfall) and human activities (e.g. irrigation, pumping, reforestation), resulting in significant changes in the quantity, quality, and spatiotemporal distribution of groundwater resources. This essay describes some examples of the associated issues, challenges and opportunities in the arid and semi-arid areas of China.

show abstract

Review: Recent progress on groundwater recharge research in arid and semiarid areas of China

Xie

Dong

et al. 2023

Hydrogeol J

View full text Add to dashboard Cite

Effects of non-isothermal flow on groundwater recharge in a semi-arid region

Cited by 6 publications

References 39 publications

Using bromide data tracer and HYDRUS‐1D to estimate groundwater recharge and evapotranspiration under film‐mulched drip irrigation in an arid Inland Basin, Northwest China

Using bromide data tracer and HYDRUS‐1D to estimate groundwater recharge and evapotranspiration under film‐mulched drip irrigation in an arid Inland Basin, Northwest China

Topical Collection: Groundwater recharge and discharge in arid and semi-arid areas of China

Review: Recent progress on groundwater recharge research in arid and semiarid areas of China

Contact Info

Product

Resources

About