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@ARTICLE{Li:917280,
author = {Li, Wanxin and Hendricks-Franssen, Harrie-Jan and Brunner,
Philip and Li, Zhi and Wang, Zhoufeng and Wang, Yike and
Wang, Wenke},
title = {{T}he role of soil texture on diurnal and seasonal cycles
of potential evaporation over saturated bare soils –
{L}ysimeter studies},
journal = {Journal of hydrology},
volume = {613},
issn = {0022-1694},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2023-00510},
pages = {128194 -},
year = {2022},
abstract = {Calculating actual bare soil evaporation (Ea) based on
potential evaporation (PE) is a widely followed approach in
many disciplines such as hydrogeology, hydrology and
agricultural sciences. The influence of soil texture on PE
is rarely considered in these approaches. In this work,
seasonal and diurnal cycles of PE over saturated bare soils
were assessed using a unique lysimeter experiment in the
Guanzhong Basin, China. The assessment was made for three
different soil textures including fine sand (PEfine), coarse
sand (PEcoarse) and gravel (PEgravel). Meteorological
variables, soil heat flux and soil temperatures were
measured at a high temporal resolution for more than 14
consecutive months. Potential evaporation rates over
saturated bare soil showed clear differences between fine
sand, coarse sand and gravel on an annual basis. PEfine was
higher than PEcoarse and PEgravel (7.3 $\%$ and 11.0 $\%$
respectively). The differences between measured PE rates
over different surfaces were especially pronounced during
daytime in spring and summer, but showed minor differences
in autumn and winter. These results are quantitatively
explained with detailed calculations of the surface energy
balance and it is found that differences in available energy
over the soil textures, related to different albedos, as
well as different porosities and thermal properties for the
materials (which influence soil temperatures) explain the
differences. This shows that PE is different for different
soil textures, which is neglected in most hydrological
studies. Nevertheless, the full-form Penman-Monteith
equation can reproduce the PE differences over soil textures
quite well in autumn and winter, but a simplified approach
to calculate the ground heat flux does not allow to
reproduce PE differences between textures.},
cin = {IBG-3},
ddc = {690},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {2173 - Agro-biogeosystems: controls, feedbacks and impact
(POF4-217)},
pid = {G:(DE-HGF)POF4-2173},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000891279200001},
doi = {10.1016/j.jhydrol.2022.128194},
url = {https://juser.fz-juelich.de/record/917280},
}