查詢結果分析
來源資料
相關文獻
- Community and Population Dynamics of an Evergreen Conifer-Broadleaf Forest in Southern Taiwan: Recent Trends (1999~2009)
- 水稻瘤野螟族群發生動態與預測
- Population Dynamics and Mantle Autotomy of the Figsnail Ficus ficus (Gastropoda: Mesogastropoda: Ficidae)
- 無土育苗介質檢出之Rhizoctonia solani的病原性與族群動態
- 水稻斑飛蝨之族群動態與發生預測
- 東方果實蠅(Bactrocera dorsalis)之族群動態及防治策略探討
- Notes on the Biology of a Poorly Known Grapsid Crab Clistocoeloma Sinensis Shen, 1933 (Decapoda: Brachyura) from Taiwan
- 梨輪紋病原菌之生理特性及田間族群動態
- 墾丁高位珊瑚礁原始林林下茄苳新生幼苗之族群動態
- 闊葉樹混合林之生態效益監測
頁籤選單縮合
題名 | Community and Population Dynamics of an Evergreen Conifer-Broadleaf Forest in Southern Taiwan: Recent Trends (1999~2009)=臺灣南部一個常綠針闊葉混合林的群集與族群動態:十年(1999~2009)趨勢 |
---|---|
作者 | 林文智; 陳永修; 周富三; Lin, Wen-chih; Chen, Yung-hsiu; Chou, Fu-shan; |
期刊 | 臺灣林業科學 |
出版日期 | 20110600 |
卷期 | 26:2 2011.06[民100.06] |
頁次 | 頁193-202 |
分類號 | 436.12 |
語文 | eng |
關鍵詞 | 常綠針闊葉混合林; 群集動態; 族群動態; Evergreen conifer-broadleaf forest; Community dynamics; Population dynamics; |
中文摘要 | 本研究針對一個位於台灣南部以台灣黃杉及長尾尖葉櫧為優勢的常綠針闊葉混合林,研究此森林在10年期間群集與主要優勢族群的動態變化。我們在1999年設立1公頃永久樣區,調查樣區內1 cm以上的樹木,給予標籤、物種鑑定及胸高直徑測量,並在2009年進行重新複查的工作。在10年期間,植物組成並沒有變化,Shannon歧異度指數僅稍有變化,根據對數模式來計算林分的死亡率、補充率、失去率及獲得率,分別為每年1.7、0.6、-0.5、0.02%。台灣黃杉的族群密度與優勢度呈現下降的趨勢,大部分優勢闊葉樹的族群密度呈現微幅下降趨勢,但是有8種優勢闊葉樹的優勢度呈現增加的趨勢。本研究結果顯示台灣黃杉在此永久樣區中競爭不過常綠闊葉樹。在2003年9月2日的強烈颱風是影響此常綠針闊葉混合林的群集及族群動態的主要因子。 |
英文摘要 | Community and population dynamics in a 1-ha permanent plot of an evergreen forest of conifer and broadleaf trees, dominated by Pseudotsuga wilsoniana and Castanopsis carlesii, in southern Taiwan were studied. All live stems with a diameter at breast height of ≥ 1 cm in this area were identified by species, tagged, and measured, first in 1999 and then again in 2009. While no changes in the floristic composition occurred between 1999 and 2009, some slight variations were evident in Shannon's diversity index. Based on a logarithmic model, the mortality, recruitment, loss, and gain rates in basal area during this period were respectively calculated to be 1.7, 0.6, -0.5, and 0.02% yr^(-1). The stem density and especially the basal area (5.06 m^2 ha^(-1)) of P. wilsoniana, the most important conifer, decreased. Although the density of all dominant broadleaf trees slightly declined, 8 gained in basal area. Recent trends suggest that P. wilsoniana trees are now at a competitive disadvantage relative to evergreen broadleaf trees in the permanent plot, but a powerful typhoon on September 2, 2003, had a major impact on the community and population dynamics of this evergreen forest of conifer and broadleaf trees. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。