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頁籤選單縮合
題名 | Typhoons of 1994 Doubled the Annual Litterfall of the Fu-Shan Mixed Hardwood Forest Ecosystem in Northeastern Taiwan=1994年颱風使福山闊葉林的年枯落物量加倍 |
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作者 | 洪富文; 游漢明; 馬復京; |
期刊 | 林業試驗所研究報告季刊 |
出版日期 | 19951200 |
卷期 | 10:4 1995.12[民84.12] |
頁次 | 頁485-491 |
分類號 | 436.27 |
語文 | eng |
關鍵詞 | 颱風; 森林更新; 枯落物; Typhoon; Forest regeneration; Litterfall; |
中文摘要 | 臺灣經常遭受颱風侵襲,尤其是在東部及東北部。從1992年3月至 1995年2月共3年期間,我們持續的收集福山試驗林闊葉林的枯落物。1994 年7月-8月間的強烈颱風後,產生的枯落物量為5,100 kg/ha,其中葉枯落物量為2754 kg/ha,使得當年全年的葉枯落物量及其他枯落物量均較前二年加倍。因此1994年總枯落物量達8,200 kg ha^-1 yr^-1,是前二年年枯落物量3,000-4,500 kg ha^-1 yr^-1的二倍。這種因颱風經常發生所造成的短期大量枯落物的產生,將使該闊葉林的光度、土壤水分、溫度及養分大量增加,有利於苗木從下層生長更新,並不需要形成空隙才能進行森林的更新。 |
英文摘要 | Strong typhoons frequently hit the eastern and northeastern regions of Taiwan. From March 1992 to February 1995, annual litterfalls of a mixed hardwood forest were monitored at the Fu-Shan Experimental Forest in northeastern Taiwan. The strong typhoons which occurred in July-August 1994 added an average of around 5,100 kg/ha of total litterfall with 2754 kg/ha being leaf litterfall. This amount doubled annual leaf and other litterfalls to 8,200 kg ha^-1 yr^-1 in this year, as compared with 3,000 to 4,500 kg ha^-1 yr^-1 in the previous two years. In combination with other evidence, this indicates that the typhoons can trigger a huge positive pulse of light, temperature, soil moisture and nutrients in this forest. This phenomenon favors the regeneration of shade-tolerant tree species by replacement from understory growth, but does not favor the regeneration of pioneer tree species in the gaps of this forest. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。