Water sources for typical desert vegetation in the Ebinur Lake basin
文献类型：期刊论文
| 作者 | Hao, Shuai3,4; Li, Fadong1,2 |
| 刊名 | JOURNAL OF GEOGRAPHICAL SCIENCES
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 32期号:6页码:1103-1118 |
| 关键词 | desert vegetation water use stable isotopes of hydrogen and oxygen Ebinur Lake basin |
| ISSN号 | 1009-637X |
| DOI | 10.1007/s11442-022-1987-4 |
| 通讯作者 | Li, Fadong(lifadong@igsnrr.ac.cn) |
| 英文摘要 | In arid and semi-arid environments, desert vegetation plays an important role in preventing soil erosion by wind and helps maintain the stability of desert and oasis ecosystems. Four types of typical desert vegetation, namely Populus euphratica, Haloxylon ammodendron, Nitraria sibirica, and Halostachs caspica, corresponding to different habitats (i.e., river bank, sand dune, desert, and salt marsh) were chosen as the model vegetation in this research. The delta H-2 and delta O-18 for rainwater, soil water, and plant water were applied to identify the water sources and quantify the proportions of different water sources used over the entire plant growth period (from March to October). The results showed that the precipitation delta H-2 and delta O-18 in the Ebinur Lake basin varied from -142.5 parts per thousand to -0.6 parts per thousand and from -20.16 parts per thousand to 1.20 parts per thousand, respectively. The largest delta H-2 and delta O-18 values occurred in summer and the smallest in winter. The soil water delta H-2 and delta O-18 of the four habitats decreased gradually with increasing depth. The delta H-2 and delta O-18 values of water extracted from the stems of the four plants had similar variation trends, that is, the maximum was observed in spring and the minimum in summer. Among the four plants, H. caspica had the highest stable isotopic values in the stem water, followed by N. sibirica, H. ammodendron, and P. euphratica. The water sources and utilization ratios of desert vegetation varied across different growth stages. Throughout the growing period, H. ammodendron mainly used groundwater, whereas the water source proportions used by N. sibirica varied greatly throughout the growing season. In spring, plants mainly relied on surface soil water, with a contribution rate of 80%-94%. However, in summer, the proportion of deep soil water used was 31%-36%; and in autumn, the proportion of middle soil water used was 33%-36%. H. caspica mainly relied on topsoil water in spring and autumn, and the proportion of soil water in the middle layer slightly increased to 20%-36% in summer. P. euphratica mainly used intermediate soil water in spring with a utilization rate of 53%-54%. In summer, groundwater was the main source, with a utilization rate of 72%-88%, and only 2%-5% came from river water, whereas in autumn, the river water utilization rate rose to 11%-21%. The results indicated that there were significant differences in water use sources during the growing period for desert vegetation in arid areas. This research provides a theoretical basis for understanding water use mechanisms, water adaptation strategies, and vegetation restoration and management in arid areas. |
| WOS关键词 | USE STRATEGIES ; USE PATTERNS ; SHRUBS ; GRADIENT ; AREA |
| 资助项目 | Natural Science Foundation of Xinjiang Uygur Autonomous Region[2021D01A118] ; National Natural Science Foundation of China[U1803244] ; Open Project of Xinjiang Laboratory of Lake Environment and Resources in Arid Area[XJNUSYS2019B18] |
| WOS研究方向 | Physical Geography |
| 语种 | 英语 |
| WOS记录号 | WOS:000797529200006 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Natural Science Foundation of Xinjiang Uygur Autonomous Region ; National Natural Science Foundation of China ; Open Project of Xinjiang Laboratory of Lake Environment and Resources in Arid Area |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/177604]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Li, Fadong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resource & Environm, Beijing 100190, Peoples R China 3.Xinjiang Normal Univ, Coll Geog Sci & Tourism, Urumqi 830054, Peoples R China 4.Xinjiang Lab Lake Environm & Resources Arid Area, Key Lab Xinjiang Uygur Autonomous Reg, Urumqi 830054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Shuai,Li, Fadong. Water sources for typical desert vegetation in the Ebinur Lake basin[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2022,32(6):1103-1118. |
| APA | Hao, Shuai,&Li, Fadong.(2022).Water sources for typical desert vegetation in the Ebinur Lake basin.JOURNAL OF GEOGRAPHICAL SCIENCES,32(6),1103-1118. |
| MLA | Hao, Shuai,et al."Water sources for typical desert vegetation in the Ebinur Lake basin".JOURNAL OF GEOGRAPHICAL SCIENCES 32.6(2022):1103-1118. |
入库方式： OAI收割
来源：地理科学与资源研究所
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