Variability of delta H-2 and delta O-18 in Soil Water and Its Linkage to Precipitation in an East Asian Monsoon Subtropical Forest Plantation
文献类型：期刊论文
| 作者 | Lyu, Sidan |
| 刊名 | WATER
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 13期号:20页码:16 |
| 关键词 | stable isotopes soil water precipitation infiltration residence time soil water source seasonal variation East Asian monsoon region |
| DOI | 10.3390/w13202930 |
| 通讯作者 | Lyu, Sidan(lvsidan@igsnrr.ac.cn) |
| 英文摘要 | The linkage between delta H-2 and delta O-18 of soil water and precipitation provides a way of understanding precipitation infiltration, residence time, and soil water source. Soil water at 0-5, 15-20, and 40-45 cm depths and event-based precipitation were collected in a subtropical forest plantation. Correlations between the delta O-18 of soil water and precipitation on the same day were used to determine the critical threshold of precipitation infiltration. Residence time of precipitation in soil was determined with correlations between the delta O-18 of soil water and cumulative precipitation before sampling. Soil water source was determined by the intersection points of Soil Water Evaporation Lines (SEL) and local meteoric water lines. The results showed that precipitation > 5-6 mm could pass through canopy and litter, and infiltrate into soil. Residence times varied from a few days to several months, and increased with soil depth. The model-based approach for SEL estimation were more robust than the regression-based approach due to the inverse variability in the delta H-2 and delta O-18 of soil water source and soil evaporative fractionation. Soil water at a 0-5 cm depth originated mainly from precipitation in the current season, while those at 15-20 and 40-45 cm depths originated mainly from precipitation in the previous season. |
| WOS关键词 | ECOHYDROLOGICAL SEPARATION HYPOTHESIS ; SEASONAL-VARIATIONS ; HYDROGEN ISOTOPES ; TRANSPIRATION ; FRACTIONATION ; GROUNDWATER ; CATCHMENT ; DYNAMICS ; RAINFALL ; DROUGHT |
| 资助项目 | National Natural Science Foundation of China[41807167] ; National Natural Science Foundation of China[41830860] |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000714459000001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/167558]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Lyu, Sidan |
| 作者单位 | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lyu, Sidan. Variability of delta H-2 and delta O-18 in Soil Water and Its Linkage to Precipitation in an East Asian Monsoon Subtropical Forest Plantation[J]. WATER,2021,13(20):16. |
| APA | Lyu, Sidan.(2021).Variability of delta H-2 and delta O-18 in Soil Water and Its Linkage to Precipitation in an East Asian Monsoon Subtropical Forest Plantation.WATER,13(20),16. |
| MLA | Lyu, Sidan."Variability of delta H-2 and delta O-18 in Soil Water and Its Linkage to Precipitation in an East Asian Monsoon Subtropical Forest Plantation".WATER 13.20(2021):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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