Remote Sensing Technology and Application, Volume. 40, Issue 2, 296(2025)
Seasonal Wetlands Extraction based on the Typical Characteristics of Land and Water Alternation：A Case Study of East Dongting Lake
Figures & Tables(16)
Fig. 2. Technical process of seasonal wetland information extraction based on GEE platform
Fig. 3. Typical characteristics of near infrared bands of different ground objects
Fig. 4. Typical characteristics of the near-infrared band of alternating land and water （seasonal wetlands）
Fig. 7. Seasonal wetland classification and sub-classification results
Fig. 9. Frequency spatial distribution of wetland in East Dongting Lake
Fig. 10. Interannual variability of seasonal wetlands， wetland area and rainfall
Fig. 11. Correlation between seasonal wetlands， wetland area and rainfall
Fig. 12. Temporal and spatial changes of seasonal wetlands frequency in East Dongting Lake
Table 1.
Information of the data source View tableView in ArticleTable 1.
Information of the data source 传感器 年份 空间分辨率
/ｍ
影像数量
/景
Landsat5 TM 1989~2012 30 642 Landsat7 ETM+ 1999~2020 30 597 Landsat8 OLI 2013~2020 30 222
Table 2.
East dongting lake wetland classification system View tableView in ArticleTable 2.
East dongting lake wetland classification system 类别 一级分类 二级分类 说明 湿地 永久性水域 永久性的河流、湖泊 季节性湿地 水体 季节性的水域 草地 以水生草本植被为主的土地 裸地 裸土或植被覆盖度极少的土地 非湿地 建成区 主要包括居民地、工厂与道路 林地 以灌木、树木为主的土地 农用地 农业生产的用地 永久性草地 以旱生草本植被为主的土地
Table 3.
Classification accuracy of different land objects in seasonal wetland classification View tableView in ArticleTable 3.
Classification accuracy of different land objects in seasonal wetland classification 湿地分类 1993/10/12 2001/09/16 2004/02/13 2009/03/14 2015/10/25 PA UA PA UA PA UA PA UA PA UA 水域 0.95 1 0.83 1 0.96 1 0.95 0.95 0.96 1 建成区 1 1 0.95 1 0.95 1 0.95 0.95 1 1 林地 1 0.89 1 0.93 1 0.89 1 0.86 1 1 农用地 0.86 0.95 0.91 0.91 0.84 0.95 0.84 0.94 0.86 1 草地 0.57 0.81 0.72 0.81 0.72 0.81 0.58 1 0.71 0.81 季节性湿地 0.9 0.5 0.93 0.67 0.93 0.7 0.91 0.5 0.92 0.58 OA/% 86.49
0.837 7
88.39
0.860 3
89.74
0.876 6
86.09
0.833 4
90.55
0.886 3
Kappa
Table 4.
Classification accuracy of different land objects in seasonal wetland subdivision View tableView in ArticleTable 4.
Classification accuracy of different land objects in seasonal wetland subdivision 湿地分类 1993/10/12 2001/09/16 2004/02/13 2009/03/14 2015/10/25 PA UA PA UA PA UA PA UA PA UA 水域 1 1 1 1 0.95 1 1 0.95 1 1 建成区 1 1 1 1 0.95 1 0.95 0.95 1 1 林地 1 0.89 1 0.93 1 0.89 1 0.86 1 1 农用地 0.9 0.95 0.91 0.91 0.88 0.95 0.84 0.94 1 0.86 草地 0.81 0.81 0.81 0.81 0.87 0.81 0.93 1 0.81 1 裸地 0.86 0.6 0 0 0.91 0.91 1 0.83 0.75 0.92 季节性水体 0.81 1 0.93 1 0 0 0.91 1 0.91 1 季节性草地 0 0 0.88 0.88 1 0.9 0.83 1 1 0.72 OA/% 92.04
0.906 3
93.75
0.926 2
93.02
0.919 2
93.70
0.927 2
93.91
0.93
Kappa
Tools
Get Citation
Copy Citation Text
Mengdie DUAN, Hao CHEN, Huanhua PENG, Changmiao TAN, Haonan XIA, Qian SHI. Seasonal Wetlands Extraction based on the Typical Characteristics of Land and Water Alternation：A Case Study of East Dongting Lake[J]. Remote Sensing Technology and Application, 2025, 40(2): 296
Paper Information
Category:
Received: Jul. 7, 2022
Accepted: --
Published Online: May. 23, 2025
The Author Email: Hao CHEN (ch_chenhao@163.com)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20