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| DOI | 10.1016/j.ejrh.2024.101799 |
| Quantifying the water use efficiency of karst ecosystems and response to environmental factors | |
| 发表日期 | 2024 |
| EISSN | 2214-5818 |
| 起始页码 | 53 |
| 卷号 | 53 |
| 英文摘要 | Study region: The study area is located in Guizhou province, the centre of the karst region in southwest China. Study focus: As a typical karst region, Guizhou has long faced challenges with water scarcity. Quantifying water use efficiency (WUE) is crucial for the efficient use of water resources and sustainable management. This study examined the spatio-temporal evolution patterns and its driving factors on WUE in Guizhou using Theil-Sen ' s slope, partial correlation methods, and the geographic detector model. New hydrological insights for the region: (1) The multi -annual mean WUE of non -karst region (NKR, 2.75 gC kg -1 H 2 O yr -1 ) is higher than that of karst region (KR, 2.10 gC kg -1 H 2 O yr -1 ) during 2001 - 2020. (2) The rate of increase of WUE was three times higher in KR than in NKR. (3) Precipitation and temperature were identified as the key factors influencing WUE. Interactions between each environmental factors were observed to have both bi-variate and non-linear enhancement effects. Notably, in the NKR, soil moisture, vegetation type and leaf area index were the dominant factors influencing WUE, with interactions between environmental factors had both enhanced and weakened effect on WUE. (4) The synergistic effects of these interactions exceeded the individual or cumulative effects of the two environmental factors. These findings contribute to our understanding of the environmental factors driving changes in WUE in the KR. |
| 英文关键词 | Environmental factor; Water use efficiency; Geographical detector; Karst ecosystems |
| 语种 | 英语 |
| WOS研究方向 | Water Resources |
| WOS类目 | Water Resources |
| WOS记录号 | WOS:001235622300001 |
| 来源期刊 | JOURNAL OF HYDROLOGY-REGIONAL STUDIES
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/298303 |
| 作者单位 | Guizhou University; Nanjing Forestry University; Guizhou University |
| 推荐引用方式 GB/T 7714 | . Quantifying the water use efficiency of karst ecosystems and response to environmental factors[J],2024,53. |
| APA | (2024).Quantifying the water use efficiency of karst ecosystems and response to environmental factors.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,53. |
| MLA | "Quantifying the water use efficiency of karst ecosystems and response to environmental factors".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 53(2024). |
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