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關鍵詞 濱海濕地;植被提?。唤y計判別式監督分類;非監督分類;決策樹監督分類
中圖分類號 P237 文獻標識碼 A 文章編號 0517-6611(2024)19-0218-09
doi:10.3969/j.issn.0517-6611.2024.19.045
開放科學(資源服務)標識碼(OSID):
Remote Sensing Identification Method of Vegetation Information of Coastal Wetland Under Ebb and Flow
FAN Xian-chuang1, 2, HAN Ting-ting3, WANG Jie4 et al
(1.College of Artificial Intelligence, North China University of Science and Technology, Tangshan, Hebei 063210; 2.Hebei Key Laboratory of Industrial Intelligent Perception, Tangshan, Hebei 063210; 3.China Water Resources Beifang Investigation, Design & Research Co., Ltd., Tianjin 300222; 4.Shandong Zhengyuan Yeda Environment Technology Co., Ltd., Jinan, Shandong 250000)
Abstract Coastal wetland has many ecological service functions such as shoreline protection, biodiversity conservation, material production, energy exchange, and providing leisure and scientific research space. Vegetation is an important part of coastal wetland, and its distribution, structural changes and other landscape information reflect the health status of coastal wetlands to a large extent. In order to analyze the feasibility of identifying vegetation species under ebb and flow of coastal wetland by remote sensing, two periods of Landsat 8 ebb and flow images were selected to classify vegetation in coastal wetland of Yellow River Delta based on statistical discriminant, decision tree supervised classification and unsupervised classification methods. The results showed that the classification effect of statistical discriminant supervised classification was the best, the classification accuracy was up to 97%, and the vegetation types could be accurately distinguished, and the ebb and flow had little effect on the classification results. The research indicated that remote sensing technology is feasible to extract vegetation information of coastal wetland under different tidal conditions, which can provide technical and data support for vegetation monitoring, ecological restoration and blue carbon storage estimation of coastal wetland.
Key words Coastal wetland;Vegetation abstraction;Statistical discriminant supervised classification;Unsupervised classification;Decision tree supervised classification
基金項目 河北省軍民融合發展研究課題(HB23JMRH038);華北理工大學省屬高校基本科研業務費項目(JQN2022006);國家自然科學基金項目(41801264)。
作者簡介 范憲創(1989—),男,山東兗州人,講師,碩士,從事遙感與地理信息系統研究。
*通信作者,工程師,從事遙感及攝影測量研究。
收稿日期 2023-11-15
濱海濕地是一類介于陸地和海洋生態系統間的獨特生態系統,如紅樹林、鹽沼、海草床等,其森林-河流-海洋復合生態系統的特殊交互作用孕育了豐富的濕地資源和多樣的生態環境[1],具有岸線保護、生物多樣性保育、物質生產能量交換、改善水環境狀態、維持元素循環、提供棲息地、保持海陸動態平衡以及提供休憩科研空間等多種生態服務功能[2]?!?br>