Remote Sensing Technology and Application, Volume. 39, Issue 5, 1205(2024)
Phenological Changes of Herbaceous Vegetation in Marsh Wetland based on Multiple Methods
Figures & Tables(6)
Fig. 2. The distribution of R2 and RMSE of NDVI data and EVI data under different fitting methods was carried out
Table 1.
The percentage of screened sample data in the total number of samples View tableView in ArticleTable 1.
The percentage of screened sample data in the total number of samples VI EVI NDVI 拟合方法 AG Beck Elmore Gu Zhang AG Beck Elmore Gu Zhang R2≥0.9的数据量 2 239 2 225 2 232 2 320 2 256 2 245 2 194 2 205 2 313 2 213 25P 2 649 2 649 2 649 2 649 2 649 2 612 2 612 2 612 2 612 2 612 百分比 84.52% 83.99% 84.26% 87.58% 85.16% 85.95% 84.00% 84.42% 88.55% 84.72%
Table 2.
Correlation table between extracted values and observed values of each genus View tableView in ArticleTable 2.
Correlation table between extracted values and observed values of each genus 属 参数 r p-value RMSE MAE RRSE 薹草属 TRS1.SOS 0.62 0.03 6.09 4.79 1.07 TRS2.SOS 0.62 0.03 16.75 16.09 2.93 TRS5.SOS 0.21 0.50 41.49 41.05 7.26 DER.SOS -0.17 0.59 50.37 49.62 8.81 UD 0.57 0.05 14.85 14.00 2.60 Greenup -0.34 0.28 27.04 25.06 4.73 TRS1.EOS -0.30 0.34 187.76 187.51 32.85 TRS2.EOS -0.32 0.32 172.50 172.28 30.18 TRS5.EOS -0.41 0.19 147.66 147.48 25.83 DER.EOS -0.27 0.39 147.88 147.68 25.87 DD -0.47 0.12 118.09 117.91 20.66 Senescence -0.25 0.44 124.04 123.86 21.70 甜茅属 TRS1.SOS 0.31 0.55 12.37 10.39 1.58 TRS2.SOS 0.33 0.53 24.42 22.88 3.11 TRS5.SOS 0.25 0.63 45.38 44.68 5.78 DER.SOS 0.52 0.29 51.39 50.95 6.55 UD 0.70 0.12 20.74 19.97 2.64 Greenup 0.72 0.11 26.47 25.71 3.37 TRS1.EOS 0.53 0.28 186.30 185.53 23.74 TRS2.EOS 0.53 0.28 171.31 170.75 21.83 TRS5.EOS 0.48 0.34 147.68 147.35 18.82 DER.EOS 0.41 0.42 146.99 146.77 18.73 DD 0.12 0.82 119.09 118.73 15.17 Senescence -0.76 0.08 115.77 115.51 14.75 野青茅属 TRS1.SOS 0.48 0.23 5.06 4.36 2.14 TRS2.SOS 0.65 0.08 15.09 14.89 6.37 TRS5.SOS 0.38 0.35 36.71 36.61 15.50 DER.SOS 0.07 0.87 44.02 43.65 18.59 UD 0.23 0.58 12.79 12.16 5.40 Greenup 0.29 0.49 21.22 20.60 8.96 TRS1.EOS -0.60 0.12 189.35 189.17 79.95 TRS2.EOS -0.63 0.09 172.97 172.85 73.03 TRS5.EOS -0.66 0.08 147.13 147.05 62.12 DER.EOS -0.63 0.09 146.71 146.68 61.95 DD -0.53 0.18 115.69 115.64 48.85 Senescence -0.64 0.09 113.02 112.97 47.72
Table 3.
Results of variance analysis of extracted values and observed values View tableView in ArticleTable 3.
Results of variance analysis of extracted values and observed values 参数 野青茅属（p值） 薹草属（p值） 甜茅属（p值） TRS1.SOS 1.00 1.00 0.99 TRS2. SOS 0.00 0.00 0.02 TRS5. SOS 0.00 0.00 0.00 DER. SOS 0.00 0.00 0.00 UD 0.00 0.00 0.13 Greenup 0.00 0.00 0.01 TRS1. EOS 0.00 0.00 0.48 TRS2. EOS 0.00 0.01 1.00 TRS5. EOS 0.00 0.00 0.01 DER. EOS 0.00 0.00 0.01 DD 0.00 0.00 0.00 Senescence 0.00 0.00 0.00
Table 4.
Mann-Kendall trend test for each category View tableView in ArticleTable 4.
Mann-Kendall trend test for each category 属 参数 突变年份 p-value z Sen's slope 野青茅属 TRS1.SOS / 0.07 -1.78 -0.41 Senescence / 0.29 1.06 -0.63 薹草属 TRS1. SOS / 0.02 -2.39 -0.63 Senescence / 0.59 0.54 0.15 甜茅属 TRS1. SOS / 0.38 -0.88 -0.28 Senescence / 0.03 -2.11 -0.49
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Bowen TAN, Yuanqi SHAN, Xiaopeng TAN, Yunlong YAO. Phenological Changes of Herbaceous Vegetation in Marsh Wetland based on Multiple Methods[J]. Remote Sensing Technology and Application, 2024, 39(5): 1205
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Received: Jan. 4, 2023
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Published Online: Jan. 7, 2025
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