| 张 衡1
，马义娟1*
，李乐乐1
，张 廷2
，周 欣1
，任 爽1.汾河流域植被NDVI的时空变化特征及其对气候因子
的响应[J].海南师范大学学报自科版,2022,35(3):322-332 |
| 汾河流域植被NDVI的时空变化特征及其对气候因子
的响应 |
| Spatial-temporal Change Characteristics of Vegetation NDVI andResponse to Climate Factors in the Fenhe River Basin |
| |
| DOI：10.12051/j.issn.1674-4942.2022.03.012 |
| 中文关键词: ：NDVI 气候因子 汾河流域 趋势分析 |
| 英文关键词: NDVI climatic factors Fenhe River Basin trend analysis |
| 基金项目: |
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| 摘要点击次数: 490 |
| 全文下载次数: 984 |
| 中文摘要: |
| 了解流域植被的时空变化，对气候变化背景下的流域生态恢复具有重要意义。利用趋
势分析、空间自相关分析以及相关性分析方法，对 2001—2019 年汾河流域归一化植被指数
（NDVI）、气温、降水量的时空格局和变化趋势以及植被NDVI对气温和降水量的响应进行了分析。
结果表明：（1）2001—2019年汾河流域植被NDVI表现为盆地地区低、流域东西两侧山地地区高的
特征，增长幅度表现为夏季>春季>秋季>冬季；（2）汾河流域植被NDVI高-高聚集型和低-低聚集型
的区域面积分别占汾河流域总面积的36.13%和21.87%，低-高聚集型与高-低聚集型在全年与各
季节分布均较少；（3）汾河流域2001—2019年升温幅度为0.038 ℃/a，4个季节的升温幅度大小次序
为春季>夏季>秋季>冬季；降水量呈增加趋势（3.084 mm/a），4个季节的降水量增加幅度大小次序为
夏季>春季>冬季>秋季；（4）汾河流域植被NDVI对气温与降水量的响应较弱，仅春季与夏季的年际
降水量变化对植被NDVI存在显著影响。研究结果可为汾河流域植被动态变化管理及生态环境恢
复提供理论依据。 |
| 英文摘要: |
| Understanding the spatial-temporal change of basin vegetation is of great significance for basin ecological resto⁃
ration in the context of climate change. In this study, trend analysis, spatial autocorrelation analysis and correlation analysis
were used to analyze the spatial-temporal patterns and change trends of vegetation NDVI, temperature and precipitation in
the Fenhe River Basin from 2001 to 2019, and the response of vegetation NDVI to temperature and precipitation. The re⁃
sults were obtained as follows: (1) The vegetation NDVI in the Fenhe River Basin was low in the basin area and high in the
mountains on both sides from 2001 to 2019, and the highest increasing range was in summer, followed by spring, autumn
and winter; (2) The area ratio of H-H type and L-L type of the vegetation NDVI in the Fenhe River Basin accounted for
36.13% and 21.87% of the total area, respectively. As for the distribution of L-H type and H-L type, it was relatively little in the whole year and each season; (3) The warming range of the Fenhe River Basin from 2001 to 2019 was 0.038 °C/a, with
the highest in spring, followed by summer, autumn and winter. The precipitation showed an increasing trend, which was
3.084 mm/a, with the highest in summer, followed by spring, winter and autumn; (4) The response of vegetation NDVI to
temperature and precipitation in the Fenhe River Basin was relatively weak, and only the inter-annual precipitation change
in spring and summer have significant effects on vegetation NDVI. This study can provide a theoretical basis for the man⁃
agement of vegetation dynamic change and ecological environment restoration in the Fenhe River Basin. |
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