臺灣博碩士論文加值系統

摘要
學號：M9712016
論文題目：銀合歡種子發芽及小苗更新特性 總頁數：52頁
學校名稱：國立屏東科技大學 系別：森林系
畢業時間及摘要別：九十九學年度第二學期碩士學位論文摘要
研究生：林其臻 指導教授：郭耀綸
論文摘要內容：
銀合歡為世界百大入侵物種之一，在恆春地區入侵程度極為嚴重，且形成大面積純林，為暸解銀合歡更新時所需的光環境，本研究分別將銀合歡種子及小苗置於8種不同光量條件，比較各處理間銀合歡種子的發芽率及小苗的生長量及生物量分配。此外，為暸解銀合歡在不同林分的天然更新狀況，本研究在恆春西海岸10個銀合歡林分調查土壤種子庫的銀合歡種子數量，並設樣區監測銀合歡小苗在不同月份的出生死亡動態變化。
銀合歡種子以熱水浸泡處理可縮短發芽時間，但種子若有蟲蛀其發芽率則維持約30%。於2009年10月在8種光環境下進種子發芽試驗，結果發現銀合歡種子在100%及70%的環境下發芽率分別為33.5及29.5%，顯著低於在40~0.2%相對光量下的發芽率(43.0~54.5%)。然而，在當年12月的相同試驗，卻發現以全光處理的銀合歡種子發芽率顯著高於其它7個較低光量的處理，兩個試驗結果並不一致，不同月份的溫度可能與處理時的光量有交感作用，使種子發芽率有不同的表現，另種子品質有可能為影響之原因之一。銀合歡小苗的遮陰試驗結果，發現低於相對光量20%的環境，小苗的存活率降低，在0.2%的極低光條件小苗2個月即全部死亡。銀合歡小苗在70%光量處理有顯著較高的苗高、地徑及全株生物量，全光處理的銀合歡小苗形體生長並非最大，低於40%光量的小苗生長亦不利。
在恆春西海岸10處銀合歡林分土壤種子庫的調查，發現土壤表層銀合歡種子密度為40~950粒m-2；土層5 cm範圍每m2可有70~1,020粒種子，兩層合計最高可有1,900粒 m-2銀合歡種子。小苗密度方面，大圓山試區銀合歡小苗密度為所有試區中最高，在2010年7月可達145株m-2，其餘9個試區皆低於40株m-2。調查期間乾雨季銀合歡小苗密度差異很大，雨季時新生苗雖可大量萌發，但到8月時小苗密度即快速降低。銀合歡新生苗數與土壤種子庫數量分析顯示具有正相關。

Abstract
Student ID: M9712016
Title of Thesis: Characteristics of Seed Germination and Seedling Regeneration of Leucaena leucocephala
Total Page: 52
Name of Institute: Department of Forest, National Pingtung University of Science and Technology
Graduate Date: July 8, 2011 Degree Conferred: Master
Name of student: Chi- Chen Lin Adviser: Dr. Yan-Lun Kuo
The Contents of Abstract in This Thesis:
Leucaena leucocephala is among the 100 of the World's Worst Invasive Alien Species, and its invasiveness in Hengchun is extremely severe—with large areas of pure forest being formed. In order to understand the required light conditions for L. leucocephala regeneration, seeds and seedlings of L. leucocephala were placed under 8 different light treatments, and seed germination ratio, seedling height growth and seedling biomass allocation were compared among different light treatments. In addition, to understand the natural regeneration at different stands we investigated the amount of L. leucocephala seeds in soil seed banks from 10 L. leucocephala stands along the Hengchun west coast, while sample areas were set to monitor the dynamics of seedling survival in different months.

Germination time of L. leucocephala can be reduced by soaking seeds in hot water, but if affected by worm bites the percentage of seed germination will be reduced to around 30%. Seed germination experiments were carried out in October 2009, under 8 different light treatments. Result showed that germination percentage of L. leucocephala seeds under 100% and 70% full-sun was 33.5% and 29.5%, respectively. These were significantly lower than germination percentage of 40~0.2% full-sun treatments (43.0~54.5% germination). However, same experiment carried out in December 2009 showed that full-sun condition resulted in significantly higher seed germination than the other 7 lower light treatment s. These two results contradict with each other. Possible explanations include variations in temperature of different month interact with light conditions—which affect seed germination performance—and seed quality.
From shading experiments of L. leucocephala seedlings, we found that seedling survival was lowered under 20% full-sun, and death within two months under extremely low light of 0.2%. L. leucocephala seedlings had significantly higher height, ground diameter, and biomass under 70% full-sun, whilst 100% full-sun condition didn’t produce the tallest seedlings. In addition, 40% full-sun or lower was not favorable for seedling growth.

Soil seed banks investigation in 10 L. leucocephala stands along west coast of Hengchun showed that the density of L. leucocephala seed on surface soil was 40~950 seeds per m-2; the 5 cm-thick subsoil contained 70~1,020 seeds per m-2. In total, these two soil horizons contained 1,900 L. leucocephala seeds per m-2 to the most. As for seedling density of L. leucocephala, Dayuanshan stand had the highest seedling density among all stands—145 seedlings per m-2 in July 2010—with all the other nine stands under 40 seedlings per m-2 each. There were major differences in L. leucocephala seedling density between dry and wet seasons: the seeds underwent mass sprouting during wet season, but seedling density was rapidly lower when it came to August. Results showed that there was a positive correlation between the numbers of L. leucocephala seedling and seed counts from soil seed banks.

摘要 I
Abstract III
謝誌 V
目錄 VI
圖表目錄 IX
壹、前言 1
貳、文獻回顧 3
一、銀合歡之生物學性狀 3
二、銀合歡之生態學性狀 4
(一)耐陰性 4
(二)耐旱能力 4
(三)固氮作用 4
(四)相剋作用 4
三、銀合歡之更新能力 5
(一)有性繁殖 5
(二)無性繁殖 5
四、銀合歡之分布 6
五、銀合歡之防治 8
六、銀合歡之病蟲害 10
叄、材料與方法 11
一、研究區域概述 11
二、材料與方法 13
(一)銀合歡種子發芽試驗 13
(二)在不同光量下銀合歡苗木生長狀況 14
(三)不同地區銀合歡林天然更新幼苗密度動態變化調查 15
(四)銀合歡土壤種子庫種子數量調查 16
(五)石珠地區銀合歡結果量調查 16
肆、結果 17
一、銀合歡種子發芽試驗 17
(一)不同光量及浸水溫度處理下銀合歡種子發芽率比較 17
(二)遭受蟲蛀之銀合歡種子發芽率試驗 18
(三)不同光量下銀合歡種子發芽試驗 19
二、在不同光量下銀合歡苗木生長狀況 21
三、不同地區銀合歡林天然更新幼苗密度動態變化調查 25
四、土壤種子庫內銀合歡種子數量 28
五、石珠地區銀合歡結果量調查 30
伍、討論 32
一、影響銀合歡種子發芽之因子 32
二、光量對銀合歡生長表現之影響 35
三、環境因子對銀合歡新生苗株數之影響 36
四、土壤種子庫種子數量變化對銀合歡天然更新苗豐量之影響 39
陸、結論 42
引用文獻 43
附錄 49
作者簡介 52

引用文獻
王子定 (1970) 應用育林學(上卷)。國立編譯館。303頁。
王相華、郭耀綸、潘順勇 (1997) 墾丁高位珊瑚礁森林樹冠疏開對二十種樹木種子發芽的影響。台灣林業科學12(3): 299-307。
王相華、洪聖峰 (2005) 銀合歡藥劑注射防除效果及林相復舊方式。中華民國雜草學會會刊26(1): 15-32。
王相華、張惠珠、徐國士、洪州玄、高瑞卿 (2007) 先驅及外來樹種入侵墾丁國家舒園香蕉灣海岸林生態保護區。國家公園學報17(2): 1-13。
王相華、洪聖峰、郭耀綸、陳芬蕙 (2009) 復舊苗木在墾丁熱帶海岸林銀合歡防除地之初期生長。國家公園學報19(1): 9-22。
王相華、陳芬蕙 (2010) 銀合歡移除及栽植作業對現地保留原生木本植物之短期影響-以墾丁海岸林復舊地為例。國家公園學報20(1): 15-25。
呂福原、陳民安 (2002) 墾丁國家公園外來種植物對原生植群之影響以銀合歡為例。保育研究報告第112號。內政部營建署墾丁國家公園管理處。47頁。
呂明倫、鍾玉龍 (2007) 墾丁國家公園銀合歡空間分布特徵之研究。特有生物研究9(2): 7-18。
李昭宗 (2003) 恆春地區銀合歡入侵及擴散之研究。國立屏東科技大學森林系研究所碩士論文。70頁。
吳立心、吳文哲、王巧萍、陳玄武 (2007) 臺灣之新記錄豆象-銀合歡豆象(Acanthoscelides macrophthalmus)(鞘翅目:豆象科)。植保會刊49: 75-80。

吳立心、吳文哲、王巧萍、陳玄武 (2008) 以銀合歡豆象進行銀合歡生物防治可行性評估。臺灣林業34(4): 31-37。
金絜之、魏浚紘、陳朝圳 (2007) 墾丁國家公園銀合歡入侵之研究。華岡農科學報20: 41-51。
林文智、郭耀綸、陳永修、張乃航、洪富文、馬復京 (2004) 台灣南部多納針闊葉林土壤種子庫與森林更新。臺灣林業科學19(1): 33-42。
郭耀綸 (1983) 銀合歡之植物相剋潛能研究。臺灣大學森林學研究所碩士論文。79頁。
郭耀綸 (1994) 從生理和形態上比較共存之相思樹與蒲姜對乾旱環境的適應。中華林學季刊27(2): 37-54。
郭耀綸 (2007) 入侵樹種銀合歡的生態性狀及管理方案。臺灣博物季刊94: 86-89。
郭昱君 (2008) 土地利用變遷對入侵植物分布之影響-以墾丁國家公園銀合歡為例。國立臺灣大學生命科學院生態學與演化生物學研究所碩士論文。95頁。
許岳飛 (2006) 銀合歡硬實種子處理方法研究。草業科學23(8): 58-62。
陳德順、胡大維 (1976) 臺灣外來觀賞植物名錄。川流出版社。618頁。
張乃航 (1996) 光照效應對臺灣赤楊、山黃麻及構樹種子發的影響。臺灣林業科學11(2): 195-199。
馮郁筑 (2008) 航空照片應用於恆春半島之銀合歡植擴散。國立屏東科技大學森林系研究所碩士論文。80頁。
黃增泉、黃星凡、楊國楨、陳香君 (1990) 墾丁國家公園豆科植物資源之調查研究(2)。墾丁國家公園管理處。162頁。
黃琛瑜 (2009) 澎湖銀合歡之分布、發芽特性與剋他作用 及其防除效果研究。國立中興大學農藝學系所論文。93頁。
楊遠波、劉和義、呂勝由 (1999) 臺灣維管束植物簡誌(第參卷)。行政院農委會。392頁。
廖天賜、方榮坤、林添富 (1995) 光度對臺灣櫸及毛柿苗木形態生長之影響。國立中興大學實驗林研究彙刊17(2): 131-145。
潘富俊、施文君、馬復京 (1993) 留存萌蘖枝數對銀合歡萌芽更新林分的影響。中華林學季刊8(3): 219-228。
潘富俊 (1998) 留存枝數對銀合歡萌芽更新林分生物量和木材比重的影響。中華林學季刊31(3): 227-237。
蔡維鐘 (1974) 含羞草酸中毒機構之研究。嘉新水泥公司文化基金會研究論文第272種。169頁。
賴宛靖 (2008) 驅逐銀合歡大作戰。國家公園季刊3(1): 32-35。
鍾玉龍、呂明倫 (2006) SPOT衛星影像於墾丁國家公園銀合歡入侵分布之繪製。臺灣林業科學21: 167-177。
Akinola, J. O., P. A. Iji, S. O. Bonidefaiye, and S. A. S. Oloruniu (1999) Studies on seed germination and seedling emergence in Leucaena leucocephala (Lam.) de Wit cv. Peru. Seed Science Technology 27:123-129.
Bonner, F. T. (1990) Storage of seeds: potential and limitations for germplasm conservation. Forest Ecology and Management 35: 35-43.
Chou, C. H., and Y. U. Kuo (1986) Allelopathic research of subtropical vegetation in Taiwan (Ⅲ). Allelopathic exclusion of understrory by Leucaena leucocephala (Lem.) de Wit. Journal of Chemical Ecology 12(6): 1432-1448.
Chen, R. F., H. H. Wang, and C. Y. Wang (2008) Dissipation of glyphosate injected into the lead tree (Leucaena leucocephala) in different seasons in Taiwan. Taiwan Journal of Forest Science 23(4): 287-299.
Gomez-aparicio, L., F. Valladares, and R. Zamora (2006) Different light responses of Mediterranean tree saplings：linking ecophysiology with regeneration niche in four co-occurring species. Tree Physiology 26: 947-958.
Jurado, E., and M. Westoby (1992) Seedling growth in relation to seed size among species of arid Australia. Journal of Ecology 80(3): 407-416.
Jurado, E., J. Flores, J. Navar, and J. Jimenez (1998) Seedling establishment under native tamaulipan thornscrub and Leucaena leucocephala plantation. Forest Ecology and Management 105: 151-157.
Hughes, C. E. (1998) Leucaena: a genetic resources handbook tropical forestry paper No. 37 Oxford Forestry Institute, Oxford U.K.
Hwang, T. Y., L. M. Hsu., and C. Y. Wang (2009) Study on the control of lead tree [Leucaena leucocephala (Lamark) de Wit] by Herbicides. Environment & Bioinformatics 6: 157-163.
Kaminski, P. E., M. T. Schifino-Wittmann, and N. R. Paim (2000) Phenology of species of the multipurpose tree genus Leucaena Benth (Leguminosae) growing outside their native range. Leucnet News 7: 1-10.
Kuo, Y. L. (2003) Ecological characteristics of three invasive plants (Leucaena leucocephala, Mikania micrantha, and Stachytarpheta urticaefolia) in southern Taiwan. Food and Fertilizer Technology Center Extension Bulletin 541: 1-11.
Lascano, C. E., B. L. Maass, P. J. Argel, and E. Viquez (1995) Leucaena—opportunities and limitations. p 152-158. In Shelton, H. M., C. M. Piggin, and J. Brewbaker (eds.) ACIAR Proceedings, Australian.

Lentzl, K. A., and D. F. Cipollini (1998) Effect of light and simulated herbivory on growth of endangered northeastern bulrush. Scirpus ancistrochaetus Schuyler. Plant Ecology 139: 125-131.
Liao, J. X., X. Y. Zou, Y. Ge, and J. Chang (2006) Effect of light intensity on growth of four Mosla species. Botanical Studies 47: 403-408.
Lowe, S., M. Browne, S. Boudjelas, and M. D. Poorter (2000) 100 of the World’s Worst Invasive Alien Species A selection from the Global Invasive Species Database. The IUCN Invasive Species Specialist Group (ISSG), 12 pp.
Mekonnen, S. (1992) Competition between maize (Zea mays L.) and Leucaena diversifolia (Schlect) Benth. in an alley cropping system. Master of Agricultural Science thesis, University of Queensland, Brisbane, Australia. 137 pp.
Raejmanek, M., and D. M. Richardson (1996) What attributes make some plant species more invasive. Ecology 77(6): 1655-1661.
Simpson R. L., M. A. Leck, and V. T. Parker (1989) Seed banks: general concepts and methodological issue. p.3-8. In Leck, M. A. V. T. Parker, and R. L. Simpson (eds.) Ecology of soil seed banks. Academic Press. San Diego, CA.
Smith, C. M., and L. J. Walters (1999) Fragmentation as a strategy for caulerpa species: Fates of fragments and implications for management of an invasive weed. Marine Ecology 20(3-4): 307-319.
Teketay, D., and A. Granstrom (1997) Seed viability of Afromontane tree species in forest soils. Journal of Tropical Ecology 13: 81-95.
Vitousek, P. M. (1990) Biological invasions and ecosystem processes: towards an integration of population biology and ecosystem studies. Oikos 57: 7-13.
Walton, C. S. (2003) Leucaena (Leucaena leucocephala) in Queensland. Pest Status Review Series – Land Protection. Queensland Department of Natural Resources and Mines, Brisbane, 51 pp.
Wang, G. G., W. L. Bauerle, and B. T. Mudder (2006) Effects of light acclimation on the photosynthesis, growth, and biomass allocation in American chestnut (Castanea dentata) seedlings. Forest Ecology and Management 226: 173-180.
Xuan, T. D., A. A. Elzaawely, F. Deba, M. Fukuta, and S. Tawata. (2006) Mimosine in Leucaena as a potent bio-herbicide. Agronomy for Sustainable Development 26: 89-97.
Yoshida, K., and S. Oka (2004) Invasion of Leucaena leucocephala and its effects on the native plant community in the Ogasawara (Bonin) Islands. Weed Technology 18: 1371-1375.
Elder, R. (2002) 'Leucaena psyllid in Leucaena'. DPI Note 3180. http://www.dpi.qld.gov.au/beef/3180.html.