黄河流域中游地下水干旱演变规律及 其对植被变化的响应
【目的】明确黄河流域中游地下水干旱时空演变规律。【方法】基于GRACE/GRACE-FO卫星数据和GLDAS数据计算标准化地下水干旱指数SGDI，利用改进的Mann-Kendall趋势检验研究和识别黄河流域中游的地下水干旱时空演变规律，利用Spearman相关分析研究地下水干旱对植被变化的响应。【结果】①黄河流域中游地下水储量异常以-0.027 mm/d的速率变化，时空分布极不均匀。②地下水干旱时间上分布不均匀，在2018年之后发生中度甚至重度的地下水干旱，且SGDI的Theil-Sen变化率为-4.10×10-4/d，未来地下水干旱有显著的增加趋势。③地下水干旱空间上分布不均匀，干旱增加趋势...
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| Published in | Guanʻgai paishui xuebao Vol. 43; no. 5; p. 105 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese English |
| Published |
Xinxiang City
Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
01.01.2024
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| Subjects | |
| Online Access | Get full text |
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| Abstract | 【目的】明确黄河流域中游地下水干旱时空演变规律。【方法】基于GRACE/GRACE-FO卫星数据和GLDAS数据计算标准化地下水干旱指数SGDI，利用改进的Mann-Kendall趋势检验研究和识别黄河流域中游的地下水干旱时空演变规律，利用Spearman相关分析研究地下水干旱对植被变化的响应。【结果】①黄河流域中游地下水储量异常以-0.027 mm/d的速率变化，时空分布极不均匀。②地下水干旱时间上分布不均匀，在2018年之后发生中度甚至重度的地下水干旱，且SGDI的Theil-Sen变化率为-4.10×10-4/d，未来地下水干旱有显著的增加趋势。③地下水干旱空间上分布不均匀，干旱增加趋势面积占比为63.02%，未来干旱恶化趋势增加，出现自西南向东北加剧现象。④植被变化对地下水干旱的驱动作用不显著。【结论】黄河流域中游地下水干旱较严重，地下水干旱对植被变化存在不显著的响应。 |
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| AbstractList | 【目的】明确黄河流域中游地下水干旱时空演变规律。【方法】基于GRACE/GRACE-FO卫星数据和GLDAS数据计算标准化地下水干旱指数SGDI，利用改进的Mann-Kendall趋势检验研究和识别黄河流域中游的地下水干旱时空演变规律，利用Spearman相关分析研究地下水干旱对植被变化的响应。【结果】①黄河流域中游地下水储量异常以-0.027 mm/d的速率变化，时空分布极不均匀。②地下水干旱时间上分布不均匀，在2018年之后发生中度甚至重度的地下水干旱，且SGDI的Theil-Sen变化率为-4.10×10-4/d，未来地下水干旱有显著的增加趋势。③地下水干旱空间上分布不均匀，干旱增加趋势面积占比为63.02%，未来干旱恶化趋势增加，出现自西南向东北加剧现象。④植被变化对地下水干旱的驱动作用不显著。【结论】黄河流域中游地下水干旱较严重，地下水干旱对植被变化存在不显著的响应。 |
| Author | ZHANG Sance LAN Pengfei HUANG Runze YAO Ning WU, Rong |
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| Copyright | 2024. This work is published under https://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. |
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| SubjectTerms | Consumption Correlation analysis Data analysis Drought Drought index Ecological function Economic development Extreme drought Groundwater Groundwater depletion Groundwater storage Impact analysis River basins Rivers Soil water Spatiotemporal data Surface water Sustainable development Temporal variations Vegetation Vegetation changes Vegetation effects Vegetation growth Water resources Water storage |
| Title | 黄河流域中游地下水干旱演变规律及 其对植被变化的响应 |
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