التفاصيل البيبلوغرافية
| العنوان: |
Impacts of Alien Plant Species on Plant Succession of Re-vegetating Landslide Area ; 崩塌地植生復育地區外來植物對植生演替之影響分析 |
| المؤلفون: |
張瑜芳, Yu-Fang Chang |
| المساهمون: |
水土保持學系所, Shin-Hwei Lin, 林信輝 |
| سنة النشر: |
2015 |
| المجموعة: |
National Chung Hsing University Institutional Repository - NCHUIR / 國立中興大學 |
| مصطلحات موضوعية: |
崩塌地, 植生工程, 外來種植物, 植生演替, landslide, vegetation restoration, alien plant species, vegetation succession |
| الوصف: |
臺灣地區崩塌地整治常用工程處理配合植生導入作業，以期達到初期快速覆蓋及建立後續演替良好基礎。然崩塌整治地區入侵植物因地而異，而外來種中具侵略性植物常為優勢種且其物種替代速率較慢，可能成為植生演替與植群發展之阻礙。 本研究選取林務局南投林區管理處轄內共九處不同植生工程處理之崩塌地復育地區，進行後續植生演替調查，以植被群落組成及演替消長情形做為復育程度評估依據，分析外來種於演替過程中所扮演的角色及優勢外來物種可能帶來的影響。並以PAST統計軟體進行植被群落主成分分析，外在環境因子與植被群落組成之間的相關性分析，了解外來種的特性。 研究範圍內調查到維管束植物共77科256種，外來植物種數約佔所有物種的四分之一，以禾本科(13%)與菊科(10%)最多。其中白背芒(Miscanthus sinensis var. glaber)、五節芒(Miscanthus floridulus)佔優勢的地區，原生種的比例及重要值略高於其他調查點位。相關性分析結果顯示；物種數與坡度、pH值及年平均氣溫之間有較高的相關性，外來種比例則與總累積降雨量有顯著的負相關。物種豐富度與外來種比例之相關性不顯著，此與多樣性阻抗假說理論有所不同；平均自然度與外來種比例之相關性亦不顯著，顯示不符合繁殖體壓力(propagule pressure)假說。調查點位中，人為嚴重干擾之調查點位(S1彰化)的大黍(Panicum maximum)生長十分強勢，點位(S7大坑)的大花咸豐草(Bidens pilosa var. radiata)至調查後期仍持續擴張，造成演替遲滯情形。 ; The construction matching with vegetation is often used for the regulation of landslide in Taiwan to achieve the primarily rapid coverage and establish favorable basis for successive succession. Nevertheless, invasive plants change with landslide regulation areas, and aggressive plants among alien species are often dominant species with slow species turnover rate that they might retard the natural succession. Nine vegetatioing areas under the governance of Nantou Forest District Office of Forestry Bureau are selected for the vegetation succession investigation. The vegetation composition and succession are analyzed to evaluate the role of alien species in the succession process and the possible effects of dominant alien species. Palaeontological Statistics data analysis software is utilized for Principal Component Analysis of vegetation communities, and Correlation Analysis of external environment factors and vegetation composition are used for understanding the characteristics of alien species. Total 77 families 256 species of vascular plants are recorded in the research area, and alien plants account for one-fourth of all species. The gramineous family (13%) and composite family (10%) are the two most dominant families. The areas with dominant Miscanthus sinensis var. glaber and Miscanthus floridulus tend to have higher proportion and importance ... |
| نوع الوثيقة: |
thesis |
| اللغة: |
Chinese |
| Relation: |
U0005-1408201510185600; http://hdl.handle.net/11455/89418 |
| الاتاحة: |
http://hdl.handle.net/11455/89418 |
| Rights: |
restricted |
| رقم الانضمام: |
edsbas.95D1F241 |
| قاعدة البيانات: |
BASE |