112
Tecnología y Ciencias del Agua
, vol. VIII, núm. 2, marzo-abril de 2017, pp. 105-115
Wang
et al
.,
Research on the hydrologic cycle characteristics using stable isotopes of oxygen and hydrogen in the Jinxiuchuan Basin
•
ISSN 2007-2422
(Ouchi) to northwestern (Zhengjia), range from
5.1 to 7.0‰. In winter, the polar continental air
masses first reach to Zhengjia rainfall station lo-
cated in the northwest and the isotope data can
represent the initial winter precipitation data,
d
value is 22.3‰;
d
values tends to decrease from
Zhengjia to Ouchi, range from 22.3 to 12.8‰.
Analysis of conversion relationship among
different water
Hydrogen and oxygen isotopes are used to mark
atmospheric precipitation, river water, Spring
water (groundwater) and soil water. According
to the representative sample data of 37 groups,
the isotope compositions in different water were
compared, and the transforming relationships
were determined.
As showed in figure 6,
δ
18
O values of river
water are near the atmospheric precipitation
line with a small deviation, and these points
scatter between the values of precipitation
and groundwater of the Jinxiuchuan Basin. It
indicated that supply components for the river
are consistent with the river components. The
study area belongs to mountain and hilly area,
whose area is small so that atmospheric precipi-
tation mainly transforms into surface water and
groundwater. Those are the main supply source
of the river.
Figure 5. Change curve of deuterium excess from 2011.7 to 2012.7.
Figure 6. Analysis of isotope composition in different water.
