Remote Sensing Technology and Application, Volume. 39, Issue 4, 987(2024)
Temporal and Spatial Variation Analysis of Vegetation Coverage in Tianshui City based on MOD13Q1 Data
Figures & Tables(10)
Fig. 2. The diagram of comparison before and after NDVI reconstruction
Fig. 3. The coefficient of variation of fractional vegetation cover
Fig. 4. The classification map of spatial distribution of vegetation coverage from 2005 to 2020
Fig. 5. The diagram of interannual variation trend of vegetation coverage
Fig. 6. Change trend of average NDVI and temperature in districts and counties from 2006 to 2020
Fig. 7. Change trend of average NDVI and precipitation in districts and counties from 2001 to 2019
Table 1.
The basis for classification of vegetation coverage View tableView in ArticleTable 1.
The basis for classification of vegetation coverage 植被覆盖度 等级划分 FVC＜30% 低植被覆盖度 30%≤FVC＜45% 中低植被覆盖度 45%≤FVC＜60% 中植被覆盖度 60%≤FVC＜75% 中高植被覆盖度 FVC≥75% 高植被覆盖度
Table 2.
The statistical table of area change of vegetation coverage at different grades View tableView in ArticleTable 2.
The statistical table of area change of vegetation coverage at different grades 年份 低植被
覆盖度
中低植被覆盖度 中植被覆盖度 中高植被覆盖度 高植被覆盖度 2005年 36.78 18.80 10.24 6.19 27.99 2010年 26.43 17.53 13.78 9.35 32.91 变化幅度 -10.35 -1.27 3.54 3.16 4.92 2010年 26.43 17.53 13.78 9.35 32.91 2015年 25.25 18.00 14.36 9.09 33.30 变化幅度 -1.18 0.47 0.58 -0.26 0.39 2015年 25.25 18.00 14.36 9.09 33.30 2018年 22.52 14.88 14.31 11.79 36.50 变化幅度 -2.73 -3.12 -0.05 2.70 3.20 2018年 22.52 14.88 14.31 11.79 36.50 2020年 20.56 16.28 14.93 11.06 37.18 变化幅度 -1.96 1.40 0.62 -0.73 0.68
Table 3.
The correlation and significance test between NDVI and air temperature View tableView in ArticleTable 3.
The correlation and significance test between NDVI and air temperature 秦安 秦州 甘谷 清水 R 0.34 0.37 0.25 0.32 t 1.41 1.53 0.98 1.31 p 0.09 0.07 0.17 0.11
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Runke WANG, Jian WANG, Zebin ZHAO, Liting NIU. Temporal and Spatial Variation Analysis of Vegetation Coverage in Tianshui City based on MOD13Q1 Data[J]. Remote Sensing Technology and Application, 2024, 39(4): 987
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Received: Oct. 21, 2021
Accepted: --
Published Online: Jan. 6, 2025
The Author Email: Runke WANG (wrk0531@lzb.ac.cn)
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