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頁籤選單縮合
題名 | Distribution of Exotic Weeds in Coastal Areas of Southern and Eastern Taiwan during Summer=臺灣夏季南海岸與東海岸之外來雜草分佈 |
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作者姓名(中文) | 徐玲明; 林盈甄; 劉又彰; 王慶裕; | 書刊名 | 植物保護學會會刊 |
卷期 | 48:2 民95.06 |
頁次 | 頁129-151 |
分類號 | 433.58 |
關鍵詞 | 臺灣; 海岸; 外來植物; 種子庫; 植相; Taiwan; Coast; Exotic; Seed bank; Flora; |
語文 | 英文(English) |
中文摘要 | 台灣自 16 世紀末,陸續由其他地區引入外來植物,迄今約 2,600 種,由於外來植物 (exotic plants) 於非耕地及野外地區,易野化 (naturalized) 甚至成為入侵植物 (invasive plants) 危害本地生態,因此本研究主要調查台灣南部與東部地區土壤種子庫之草相,以及外來雜草生長分布。結果顯示共有 32 科、 103 屬、 133 種植物存在於兩地區,其中外來雜草有 37 種約佔 28% 。於 2004 年自上述二地區 22 及 13 地點取回土樣,土壤中種子經發芽後調查,發現屏東縣地區土壤種子包括 16 科、 39 種,外來雜草種子有 7 種,佔 18% 。而台東縣地區土壤中種子則包括 20 科、 69 種,外來雜草種子 17 種,佔 25% 。二地區土壤所含植物種子均以莎草科的碎米莎草數量最多。於 2005 年夏季實際田野調查發現屏東縣海岸地區在高溫乾旱逆境下雜草 70% 死亡,而存活雜草包括 10 科、 24 種,其中外來雜草有 5 科、 8 種,佔 33% ,以菊科為主。而台東縣海岸地區雜草包括 21 科、 82 種,其中外來雜草有 8 科、 27 種,佔 33% ,以菊科、豆科及禾本科為主。顯然外來雜草於海岸地區及不良環境下有較高之出現比例,其具有較高之適應力。 |
英文摘要 | A survey of weed flora in the field and seed banks in southern and eastern Taiwan found 133 weed species belonging to 32 families and 103 genera with 28% of these species, i.e. 37, being exotic weeds. In 2004, an investigation in the greenhouse of weed flora in seed banks found 18% of the 39 species (from 16 families) in southern Taiwan and 25% of the 69 species (from 20 families) in eastern Taiwan as exotic weeds. In the summer of 2005, heat and drought coupled with a typhoon in coastal areas of southern Taiwan resulted in about 70% mortality of ground-covering weeds; and among the 24 species (from 10 families) of weeds that survived, 33% were exotic. Meanwhile, in the coastal areas of eastern Taiwan , ca. 33% of the 82 surviving species (from 21 families) were exotic weeds. It is suggested that, under adverse environments, the exotic weeds in coastal areas appear to have stronger growth potential and competition ability than the indigenous weeds. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。