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題名 | 以SPOT衛星影像探討淡水河紅樹林自然保留區植生指標之變化=Using SPOT Satellite Image to Study the Variation of Vegetation Index for Tamsui River Mangrove Natural Reserve |
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作 者 | 王慈憶; 陳建璋; 陳朝圳; | 書刊名 | 作物、環境與生物資訊 |
卷期 | 3:3 民95.09 |
頁次 | 頁229-238 |
分類號 | 436.12 |
關鍵詞 | 水筆仔; 常態化差異植生指標; 健康監測; 衛星影像; 水質污染; Kandelia obovata; Narmalized difference vegetation index; Health monitor; Satellite image; Water pollution; |
語文 | 中文(Chinese) |
中文摘要 | 摘要 利用衛星影像之光譜特性所推算之植生 指標,不但可表示植生量的高低,亦可供為 植群健康監測之指標。本研究以淡水竹圍紅 樹林為研究區域,利用1994 年至2005 年之 不同生長季節之多期SPOT 衛星影像,進行 常態化差異植生指標(NDVI)分析,以NDVI 影像推估淡水河紅樹林生育地在十年間之變 異及季節性變化,並配合水文及水質資料, 探討淡水河紅樹林之保育問題。結果顯示近 十年紅樹林NDVI 由0.265 增加為0.465,各 不同季節間具有顯著差異,而雖然水污染程 度有逐漸嚴重之趨勢,但對紅樹林的生長並 不產生影響,唯水質污染是否造成紅樹林棲 地其他生物之影響,則有待研究。 |
英文摘要 | Using the spectral characteristic of satellite images to estimate vegetation indices not only can show the level of vegetation biomass, but also can be applied to the monitoring index of plant health. This study was conducted in Tamsui River Mangrove Natural Reserve, and utilized the multi-temporal SPOT images in different growing seasons from 1994 to 2005. We applied normalized difference vegetation index (NDVI) to detect the changes in vegetation of decennium and seasonal variation in Tamsui River Mangrove Natural Reserve. The NDVI information was incorporated with hydrology and water quality data to study the conservation issue of the Tamsui River Mangrove. The results revealed that mangrove NDVI increased from 0.265 to 0.465 in the past ten years and there existed differences among seasons. The influence of water pollution on mangrove is not clear from the images, and needs to be further studied. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。