Spectroscopy and Spectral Analysis, Volume. 41, Issue 2, 579(2021)
Impact of Water Level Fluctuations on Habitats of Wintering Migratory Birds Based on Multispectral Data
Figures & Tables(11)
Fig. 2. Data selection basis
(a): Characteristics of water level changes; (b) Corresponding of migratory bird activities and hydrological periods
Fig. 4. Landscape patch spectrum of Shengjin Lake in different hydrological periods
Fig. 5. Variation process of landscape patch areas in different hydrological periods
Fig. 7. Changes of habitat areas in Shengjin Lake in different hydrological periods
Table 1. Phase selection of Landsat-8 satellite images
View tableView in ArticleTable 1. Phase selection of Landsat-8 satellite images
日期 水文时期 2017年5月09日 涨水期 2017年7月28日 丰水期 2017年11月1日 退水期 2018年4月10日 枯水期
Table 2. Comparative analysis of two supervised classification methods
View tableView in ArticleTable 2. Comparative analysis of two supervised classification methods
地类 最大似然值法 支持向量机 总数
/个正确分类
数/个制图精度
/%用户精度
/%总数
/个正确分类
数/个制图精度
/%用户精度
/%林地 420 420 100.00 100.00 420 420 100.00 100.00 水域 1 129 1 129 100.00 97.33 1 129 1 129 100.00 95.27 草滩地 208 205 98.56 100.00 208 208 100.00 100.00 泥滩地 154 153 99.35 88.44 154 152 98.70 89.41 芦苇滩地 208 205 98.56 100.00 171 117 68.42 79.59 水田 189 188 99.47 100.00 189 188 99.47 100.00 旱地 166 166 100.00 98.22 166 166 100.00 94.32 其他用地 140 110 78.57 94.02 79 140 56.43 95.18 总体精度/% 93.048 1 97.230 2 Kappa系数 0.899 5 0.960 2
Table 3. Classification of landscape patch area
View tableView in ArticleTable 3. Classification of landscape patch area
类别 面积范围/km2 A ≤15 B 15~100 C 100~500 D 500~2 000 E >2 000
Table 4. Quantitative features and classification of patches
View tableView in ArticleTable 4. Quantitative features and classification of patches
水文
时期水位
/m斑块数量特征与分级/个 A B C D E 总数/个 涨水期 10.38 14 189 169 28 7 2 14 395 丰水期 14.33 9 035 192 52 3 3 9 286 退水期 9.75 14 088 184 43 9 1 14 325 枯水期 8.99 6 491 228 60 9 2 6 790
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Xiang GAO, Yu-ting QI, Bin DONG, Yu-huan CUI, Shuang HAO, Fang ZHAO, Hong-chang WANG. Impact of Water Level Fluctuations on Habitats of Wintering Migratory Birds Based on Multispectral Data[J]. Spectroscopy and Spectral Analysis, 2021, 41(2): 579
Paper Information
Category: Research Articles
Received: Jan. 2, 2020
Accepted: Apr. 28, 2020
Published Online: Apr. 8, 2021
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