| 2011-2020年武威市植被覆盖度时空变化特征分析 |
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| 引用本文： | 张玉婷,张祯,马吉虎.2011-2020年武威市植被覆盖度时空变化特征分析[J].防护林科技,2022(1):56-58,63. |
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| 作者姓名： | 张玉婷 张祯 马吉虎 |
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| 作者单位： | 国家林业和草原局甘肃濒危动物保护中心,甘肃武威733000 |
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| 基金项目： | 武威市市列科技计划项目 |
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| 摘 要： | 基于武威市2011-2020年MODIS13Q1数据提取16d的NDVI数据,通过Arcgis像元统计工具计算得到年均NDVI数据,采用回归趋势分析法研究植被覆盖度时空变化、生态适应性和植被地域分布等主要特征.结果 表明:武威市植被地域分布特征明显,植被覆盖度整体呈自北向南递增趋势空间分布,高覆盖度主要分布在天祝县南部...
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| 关 键 词： | MODIS 植被覆盖度NDVI 时空变化 武威市 |
Characteristics of Temporal and Spatial Changes of Vegetation Coverage in Wuwei City from 2011 to 2020 |
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| Zhang Yuting,Zhang Zhen,Ma Jihu.Characteristics of Temporal and Spatial Changes of Vegetation Coverage in Wuwei City from 2011 to 2020[J].Protection Forest Science and Technology,2022(1):56-58,63. |
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| Authors: | Zhang Yuting Zhang Zhen Ma Jihu |
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| Institution: | (Gansu Endangered Animal Protection Center of State Forestry and Grassland Administration,Wuwei 733000,China) |
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| Abstract: | Based on the MODIS13 Q1 data of Wuwei City from 2011 to 2020,the 16-day NDVI data was extracted,and the annual average NDVI data was calculated by the ArcGIS pixel statistical tool.The regression trend analysis method was used to study the spatio-temporal changes of vegetation coverage,ecological adaptability,and vegetation geographical distribution.Main features.Result shows that the vegetation area distribution characteristics of Wuwei City are obvious,and the overall vegetation coverage is increasing from north to south.The high coverage is mainly in the Qilian Mountains in the south of Tianzhu County,and the medium coverage is mainly distributed in Liangzhou District and Gulang County.In the oasis agricultural area in the central part of Minqin County,the low coverage is mainly distributed in Liangzhou District,Gulang County,and the northern desert hinterland of Minqin County.The fluctuation range of the average annual NDVI value is generally stable,showing an upward trend,and the overall vegetation growth has been significantly improved. |
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| Keywords: | MODIS vegetation coverage NDVI temporal and spatial changes Wuwei City |
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