滸苔和馬尾藻的生消與海表面溫度的相互影響研究
發(fā)布時(shí)間:2018-02-21 11:59
本文關(guān)鍵詞: 滸苔 馬尾藻 溫度 光譜特征 MODIS 出處:《海洋湖沼通報(bào)》2016年05期 論文類型:期刊論文
【摘要】:溫度是影響藻類生長(zhǎng)繁殖的一個(gè)重要因素。本文針對(duì)2013年6月在黃海海域出現(xiàn)的大量滸苔和馬尾藻事件,基于MODIS(Moderate-Resolution Imaging Spectroradiometer)衛(wèi)星遙感數(shù)據(jù),分析了此次事件中滸苔和馬尾藻生消過(guò)程與海表面溫度之間的關(guān)系。首先根據(jù)滸苔、馬尾藻和水體的光譜特征曲線,本文利用大型浮游藻類指數(shù)(Macroalgae Index,MI)對(duì)滸苔和馬尾藻進(jìn)行了識(shí)別,并且對(duì)滸苔和馬尾藻生消過(guò)程中的MI值和對(duì)應(yīng)的海表面溫度進(jìn)行了分析,結(jié)果表明:在此次事件中,海水溫度是影響滸苔和馬尾藻生長(zhǎng)繁殖的重要環(huán)境因子,滸苔和馬尾藻處的海表面溫度比周圍水體的海表面溫度高1~2℃,滸苔和馬尾藻爆發(fā)的適宜溫度范圍為23~26℃。
[Abstract]:Temperature is an important factor affecting algae growth and reproduction. In this paper, based on MODIS(Moderate-Resolution Imaging Spectroradioradiometeral remote sensing data, a large number of events of Enteromorpha enteromorpha and Sargassum occurred in the sea area of Huang Hai in June 2013. The relationship between the growth and extinction process of Enteromorpha enteromorpha and Sargassum and sea surface temperature was analyzed. Firstly, according to the spectral characteristic curves of Enteromorpha enteromorpha, Sargassum sargassum and water body, In this paper, macrophytic algae index (Macroalgae Indexm MI) is used to identify Enteromorpha and Sargassum, and the MI value and sea surface temperature during the process of growth and extinction of Enteromorpha enteromorpha and Sargassum are analyzed. The results show that: in this event, Sea water temperature is an important environmental factor affecting the growth and reproduction of Enteromorpha margin and Sargassum. The sea surface temperature of Enteromorpha enteromorpha and Sargassum is 1 + 2 鈩,
本文編號(hào):1521919
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