Soil water dynamics and water balance on a tropical coral island
文献类型：期刊论文
| 作者 | Han, Shengsheng1,2; Liu, Suxia1,2; Mo, Xingguo1,2; Yang, Lihu2; Song, Xianfang1,2 |
| 刊名 | HYDROLOGICAL PROCESSES
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 35期号:12页码:15 |
| ISSN号 | 0885-6087 |
| 关键词 | evaporation groundwater-dependent ecosystem Hydrus-1D root water uptake transpiration Zhaoshu Island |
| DOI | 10.1002/hyp.14415 |
| 通讯作者 | Liu, Suxia(liusx@igsnrr.ac.cn) |
| 英文摘要 | Understanding soil water dynamics and the water balance of tropical coral islands is important for the utilization and management of their limited freshwater resources, which is only from rainfall. However, there is a significant knowledge gap in the influence of soil water on the water cycle of coral islands. Soil water dynamics and the water balance of Zhaoshu Island, Xisha Archipelago were thus investigated using soil moisture measurements and the Hydrus-1D model from October 2018 to September 2019. Over the study period, vegetation transpiration, soil evaporation, groundwater recharge and storage in the vadose zone were approximately 196, 330, 365 and 20 mm, occupying 22%, 36%, 40% and 2% of annual rainfall total (911 mm), respectively. For the wet season (from May to October) these values became 75, 202, 455 and 40 mm, occupying 10%, 26% and 59% and 5% of the seasonal rainfall total (772 mm), respectively. During the dry season (from November to April), a dry soil layer between 40 and 120 cm depth of the soil profile was identified that prevented water exchange between the upper soil layers and the groundwater resulting in the development of deep roots so that vegetation could extract groundwater to supplement their water requirements. Vegetation not only consumes all dry season rainfall (140 mm) but extracts water deeply from groundwater (90 mm) as well as from the vadose layer (20 mm). As such, the vegetation appears to be groundwater-dependent ecosystems. The research results aid us to better understand the process of water dynamics on coral islands and to protect coral island ecosystems. |
| WOS关键词 | GROUNDWATER-DEPENDENT ECOSYSTEMS ; HYDRAULIC CONDUCTIVITY ; TRANSPIRATION ; VEGETATION ; MANAGEMENT ; RESOURCES ; CLIMATE ; LENSES ; MODEL ; SEA |
| 资助项目 | ChinaWaterSense Project[8087-00002B] ; Chinese Academy of Sciences[XDA13010303] ; EOForChina Project[18-M01-DTU] ; National Key R&D Program of China[2018YFE0106500] |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000737864100018 |
| 资助机构 | ChinaWaterSense Project ; Chinese Academy of Sciences ; EOForChina Project ; National Key R&D Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/168869]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Suxia |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Sino Danish Ctr, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 11A,Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Shengsheng,Liu, Suxia,Mo, Xingguo,et al. Soil water dynamics and water balance on a tropical coral island[J]. HYDROLOGICAL PROCESSES,2021,35(12):15. |
| APA | Han, Shengsheng,Liu, Suxia,Mo, Xingguo,Yang, Lihu,&Song, Xianfang.(2021).Soil water dynamics and water balance on a tropical coral island.HYDROLOGICAL PROCESSES,35(12),15. |
| MLA | Han, Shengsheng,et al."Soil water dynamics and water balance on a tropical coral island".HYDROLOGICAL PROCESSES 35.12(2021):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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