Characteristics of Stable Isotopes in Precipitation and Their Moisture Sources in the Guanling Region, Guizhou Province

Table 1

Standard samples of different specifications (‰).

Sample description	δ^18O (V-SMOW)	δ^2H (V-SMOW)
LGR3A	−13.1	−96.4
LGR4A	−7.7	−51.0
LGR5A	−2.8	−9.5