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Title: | 淡黃木層孔菌在臺灣中部及北部與環境暨生物因子之研究 Study on the Relationship between Phellinus gilvus and the Environmental and Biotic Factors in Central and Northern Taiwan |
Authors: | Ya-te Chen 陳雅得 |
Advisor: | 李靜?(Ching-Feng Li) |
Keyword: | 淡黃木層孔菌,心材腐朽菌,快速調查,物種分布,植群, Phellinus gilvus,heartwood decay fungi,quick survey,species distribution,vegetation types, |
Publication Year : | 2019 |
Degree: | 碩士 |
Abstract: | 心材腐朽菌在森林動態中扮演重要的角色,但在臺灣相關的研究稀少。本論文的目的為釐清影響臺灣中海拔常見的心材腐朽菌 -- 淡黃木層孔菌(Phellinus gilvus)生態分布的重要因子:藉由設計快速的廣泛取樣調查,來取得淡黃木層孔菌在臺灣北部與中部天然林中分布地點或未發現地點的生物變數(寄主樹木與森林植群資料)與環境變數(氣候資料),並量化分析,找出影響它們分布的最關鍵變數。
快速調查方法,係以「臺灣現生天然植群圖集」中所定義之植群群系為主要分層取樣依據,著重於取得現地的森林與樹木資料,並加上「區域」這一變數,以分析各項變數是否具跨區域的影響力。經實踐後,確認本調查方法確實可達到快速取樣、建立特定物種分布資料庫的目的。所獲得之資料為兼顧「發現」與「未發現」之高度不平衡物種分布數據。後續分析則顯示,加入生物性因子建立的分布模型,比僅使用環境因子的模型更為準確、簡潔、合理且易詮釋,可見生物因子在決定物種生態分布上之重要性,建議物種分布研究應將生物因子納入。 分析後顯示影響淡黃木層孔菌分布最重要的變數為:平均樹木胸徑大、植群中殼斗科所佔比例高、以及氣溫季節性變化相對小的天然林中。符合此環境條件之植群群系為山地常綠闊葉林,其次為空間上相鄰的下部山地次生常綠闊葉林、山地針闊葉混淆林、山地常綠闊葉矮林、山地針葉林與山地針闊葉次生混淆林。淡黃木層孔菌應為常見於雲霧盛行地區老熟殼斗科天然林的物種。 本研究的結果,為後續研究心材腐朽菌如何影響森林生態不可或缺的一步,所發展之快速調查方法亦可調整應用於其他物種分布之研究中。 Heartwood decay fungi play important roles in forest dynamics. However, the study on their biology, physiology, and ecological roles in forest regeneration is very limited in Taiwan. The objective of this study is to identify the key factors that determine the ecological distribution of a heartwood decay fungus, Phellinus gilvus, often found in mid-altitudinal natural forest in Taiwan. With the design and employment of a quick stratified sampling method based on Actual Vegetation Maps of Taiwan, data of the occurrences and absence of P. gilvus across natural forest in northern and central Taiwan was obtained, including biological variables concerning the host trees and host forest, as well as environmental variables concerning the habitat and climate. The quick survey method was proven to be efficient in acquiring samples to build a dataset of a certain species for the analysis of its distribution. The analysis of the dataset shows that P. gilvus generally occurs in locations with relatively little temperature fluctuation and in forest with a greater proportion of Fagaceae trees. All of the fruitbodies occur on trees of the family Fagaceae with large diameters of breast height. Montane evergreen broadleaf forest is the most suitable vegetation type for P. gilvus, while occurrences were also recorded scattering in other vegetation types with similar climatic conditions and large dominant Fagaceae trees. The results of this study provide important base for future studies on the ecological roles of heartwood decay fungi in forest. Moreover, the quick survey method may be applied to the study of distribution of other species. |
URI: | http://tdr.lib.ntu.edu.tw/handle/123456789/824 |
DOI: | 10.6342/NTU201900498 |
Fulltext Rights: | 同意授權(全球公開) |
Appears in Collections: | 森林環境暨資源學系 |
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ntu-108-1.pdf | 1.9 MB | Adobe PDF | View/Open |
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