Oxygen and Hydrogen Isotopes of Precipitation in a Rocky Mountainous Area of Beijing to Distinguish and Estimate Spring Recharge
Stable isotopes of oxygen and hydrogen were used to estimate seasonal contributions of precipitation to natural spring recharge in Beijing’s mountainous area. Isotopic compositions were shown to be more positive in the dry season and more negative in the wet season, due to the seasonal pat...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-05-01
|
| Series: | Water |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2073-4441/10/6/705 |
| _version_ | 1811294777161809920 |
|---|---|
| author | Ziqiang Liu Xinxiao Yu Guodong Jia Dandan Wang |
| author_facet | Ziqiang Liu Xinxiao Yu Guodong Jia Dandan Wang |
| author_sort | Ziqiang Liu |
| collection | DOAJ |
| description | Stable isotopes of oxygen and hydrogen were used to estimate seasonal contributions of precipitation to natural spring recharge in Beijing’s mountainous area. Isotopic compositions were shown to be more positive in the dry season and more negative in the wet season, due to the seasonal patterns in the amount of precipitation. The local meteoric water line (LMWL) was δ2H = 7.0 δ18O − 2.3 for the dry season and δ2H = 5.9 δ18O − 10.4 for the wet season. LMWL in the two seasons had a lower slope and intercept than the Global Meteoric Water Line (p < 0.01). The slope and intercept of the LMWL in the wet season were lower than that in the dry season because of the effect of precipitation amount during the wet season (p < 0.01). The mean precipitation effects of −15‰ and −2‰ per 100 mm change in the amount of precipitation for δ2H and δ18O, respectively, were obtained from the monthly total precipitation and its average isotopic value. The isotopic composition of precipitation decreased when precipitation duration increased. Little changes in the isotopic composition of the natural spring were found. By employing isotope conservation of mass, it could be derived that, on average, approximately 7.2% of the natural spring came from the dry season precipitation and the rest of 92.8% came from the wet season precipitation. |
| first_indexed | 2024-04-13T05:22:30Z |
| format | Article |
| id | doaj.art-ee1c250f66f545deb8c870fa0bf33658 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-04-13T05:22:30Z |
| publishDate | 2018-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-ee1c250f66f545deb8c870fa0bf336582022-12-22T03:00:42ZengMDPI AGWater2073-44412018-05-0110670510.3390/w10060705w10060705Oxygen and Hydrogen Isotopes of Precipitation in a Rocky Mountainous Area of Beijing to Distinguish and Estimate Spring RechargeZiqiang Liu0Xinxiao Yu1Guodong Jia2Dandan Wang3Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing 100083, ChinaKey Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing 100083, ChinaKey Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing 100083, ChinaKey Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing 100083, ChinaStable isotopes of oxygen and hydrogen were used to estimate seasonal contributions of precipitation to natural spring recharge in Beijing’s mountainous area. Isotopic compositions were shown to be more positive in the dry season and more negative in the wet season, due to the seasonal patterns in the amount of precipitation. The local meteoric water line (LMWL) was δ2H = 7.0 δ18O − 2.3 for the dry season and δ2H = 5.9 δ18O − 10.4 for the wet season. LMWL in the two seasons had a lower slope and intercept than the Global Meteoric Water Line (p < 0.01). The slope and intercept of the LMWL in the wet season were lower than that in the dry season because of the effect of precipitation amount during the wet season (p < 0.01). The mean precipitation effects of −15‰ and −2‰ per 100 mm change in the amount of precipitation for δ2H and δ18O, respectively, were obtained from the monthly total precipitation and its average isotopic value. The isotopic composition of precipitation decreased when precipitation duration increased. Little changes in the isotopic composition of the natural spring were found. By employing isotope conservation of mass, it could be derived that, on average, approximately 7.2% of the natural spring came from the dry season precipitation and the rest of 92.8% came from the wet season precipitation.http://www.mdpi.com/2073-4441/10/6/705stable isotopesprecipitationlocal meteoric water linesnatural spring |
| spellingShingle | Ziqiang Liu Xinxiao Yu Guodong Jia Dandan Wang Oxygen and Hydrogen Isotopes of Precipitation in a Rocky Mountainous Area of Beijing to Distinguish and Estimate Spring Recharge Water stable isotopes precipitation local meteoric water lines natural spring |
| title | Oxygen and Hydrogen Isotopes of Precipitation in a Rocky Mountainous Area of Beijing to Distinguish and Estimate Spring Recharge |
| title_full | Oxygen and Hydrogen Isotopes of Precipitation in a Rocky Mountainous Area of Beijing to Distinguish and Estimate Spring Recharge |
| title_fullStr | Oxygen and Hydrogen Isotopes of Precipitation in a Rocky Mountainous Area of Beijing to Distinguish and Estimate Spring Recharge |
| title_full_unstemmed | Oxygen and Hydrogen Isotopes of Precipitation in a Rocky Mountainous Area of Beijing to Distinguish and Estimate Spring Recharge |
| title_short | Oxygen and Hydrogen Isotopes of Precipitation in a Rocky Mountainous Area of Beijing to Distinguish and Estimate Spring Recharge |
| title_sort | oxygen and hydrogen isotopes of precipitation in a rocky mountainous area of beijing to distinguish and estimate spring recharge |
| topic | stable isotopes precipitation local meteoric water lines natural spring |
| url | http://www.mdpi.com/2073-4441/10/6/705 |
| work_keys_str_mv | AT ziqiangliu oxygenandhydrogenisotopesofprecipitationinarockymountainousareaofbeijingtodistinguishandestimatespringrecharge AT xinxiaoyu oxygenandhydrogenisotopesofprecipitationinarockymountainousareaofbeijingtodistinguishandestimatespringrecharge AT guodongjia oxygenandhydrogenisotopesofprecipitationinarockymountainousareaofbeijingtodistinguishandestimatespringrecharge AT dandanwang oxygenandhydrogenisotopesofprecipitationinarockymountainousareaofbeijingtodistinguishandestimatespringrecharge |