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題名 | 臺灣根節蘭及鶴頂蘭之地理分布及氣候環境 |
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作者 | 蘇鴻傑; 陳子英; | 書刊名 | 國立臺灣大學農學院研究報告 |
卷期 | 31:4 1991.12[民80.12] |
頁次 | 頁40-55 |
分類號 | 377.2102 |
關鍵詞 | 分布; 地理; 根節蘭; 氣候; 臺灣; 環境; 鶴頂蘭; |
語文 | 中文(Chinese) |
中文摘要 | 本文分析台灣野生之19種根節蘭及4種鶴頂蘭之產地資料,以探討其分 布型與生育地之氣候條件。產地之登錄及地點標示係採用生育地單位為資料庫之 基本結構,乃根據氣候區、集水區及山地之植群帶,將全島劃分為230個單位。 此類植物大致可分為亞熱帶及溫帶兩群,其氣溫需求以山地植群帶年平均溫度加 以測定。台灣所產植物之分布型與產地之水分機制有關,可分為東北型、西北型、 東北區外型、東南型、北-東型、北-南不連續型及廣泛分布型,其水分需求可用 年雨量及冬季雨量所占比例加以研判。各種植物產地之雨量分配雖有差異,然若 雨量偏低而有乾季出現,則不適於大多數種類之生長。除廣泛分布種以外,其餘 各種皆有特定的氣候需求,且產地紀錄有限,可能在自然情況或遭受過量採集下 而成為稀有植物,尤以黃根節蘭之情況最為嚴重,在資源保育上值得注意。 |
英文摘要 | The localities of 19 native species of Calanthe and 4 species of PAaius in Taiwan are analyzed to elucidate their geographical patternsand habitat requirements. The basic units for data document,retrieval and mapping are known as habitat units which are based onthe successive subdivision of the whole island into small cells byclimatic regions, watersheds and altitudinal vegetation zones. Thestudied plants have both subtropical and temperate climatic elementsof which the thermal requirements are expressed by the mean annualtemperatures of corresponding vegetation zones. Their geographicalpatterns are closely related to the moisture regime of climatic regions.These include Northeast type. Northeast exclusion type. Northwesttype, Southeast type, North-East type, North-South disjunct type andWide-spread type. The moisture condition of each type is interpretedby annual rainfall and the ratio of winter rain. As a whole, althoughspecies differ in their water requirement, habitats with low winterrain and distinct dry season are not suitable for their growth. Withthe exception of wide-spread type, many species are localized indistribution. They require specific habitats, and are potentiallyvulnerable to loss of habitat resulted from logging and commercialover-exploitation. A critical situation is noted for Calanthe sieboldiiwhich deserves special concern regarding the conservation of theseplant resources. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。