| NDWI指数在衡邵盆地干旱监测中的适用性研究 |
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| 引用本文： | 李涵茂.NDWI指数在衡邵盆地干旱监测中的适用性研究[J].现代农业科技,2024(8). |
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| 作者姓名： | 李涵茂 |
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| 作者单位： | 湖南省衡阳市农业气象试验站 |
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| 基金项目： | 湖南省气象局 2020 年重点课题项目( XQKJ20A002) ,国家重点研发计划专题“热带与特色林果气象灾害监测预警技术与业务平台”(2019YFD1002203)。。 |
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| 摘 要： | 利用归一化植被水分指数（NDWI）对衡邵盆地进了干旱监测分析。结果分析表明，NDWI能很好地反映干旱发生发展的过程；NDWI监测的干旱发生的时段和区域与降水量严重偏少的时段和区域有很好的吻合性。其次，NDWI监测的干旱发生区域主要集中在衡邵的中间盆地农业耕作区，能间接的反映农业干旱发生情况。
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| 关 键 词： | NDWI 植被指数 衡邵盆地 干旱监测 |
| 收稿时间： | 2023/6/18 0:00:00 |
| 修稿时间： | 2023/6/18 0:00:00 |
Applicability of NDWI Index to Drought Monitoring in Hengshao Basin |
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| Abstract: | Drought monitoring and analysis were carried out in Hengshao Basin based on the normalized vegetation water index (NDWI).. The results show that NDWI can well reflect the process of drought occurrence, development and relief. The periods and regions of drought monitored by NDWI have a good agreement with the periods and regions of severely low precipitation. Secondly, the drought areas monitored by NDWI are mainly concentrated in the agricultural farming areas of the middle basin of Hengshao, which can indirectly reflect the occurrence of agricultural drought. |
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| Keywords: | NDWI vegetation index Hengshao Basin drought monitoring |
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