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題名 | 臺灣檜木林之生態研究及經營管理建議(東部地區及總結)=Ecological Studies and Management Suggestions for Taiwan Cypress Forest (Eastern Area and Conclusion) |
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作者 | 陳玉峰; 楊國禎; 王豫煌; 王曉萱; | 書刊名 | 臺灣人文生態研究 |
卷期 | 3:2 2001.07[民90.07] |
頁次 | 頁121-255 |
分類號 | 436.12 |
關鍵詞 | 檜木林; 口述歷史; 經營管理; 天然更新; 生長速率; Cypress forest; Oral history; Management; Growth rate; |
語文 | 中文(Chinese) |
中文摘要 | 經由3個年度對臺灣檜木林的樣區調查、口述歷史及山林經驗的深度訪談,以及針對全臺最早的檜木伐採及造林的阿里山區,進行造林成果的檢驗,援提從政策以迄經營管理技術層面的各項建議。 本系列報告首度質疑「檜木林無法天然更新」的論點,回溯歷來絕大部分相關於檜木(林)的研究或文獻資料,釐析各大研究主題,且由野調及歷來經驗,提出檜木林兩大族群--紅檜與扁柏的更新模式,確定其配合臺灣地體變動、向源侵蝕等崩塌,作天然更新與續存,而東臺並無例外,但東臺檜木林的海拔分布低於中西部,伴生種組成存有地域分化或植物地理差異。 本年度之以阿里山超過80年生的造林地檢討,取樣調查造林木生長速率,從而首度提出人造檜木成林之後,最好疏伐成為每公頃100株以下的巨檜,用以保障巨木林之可資預期。夥同山林工作前輩的累聚經驗,本報告亦提出育苗的「生物工法」,也就是苗圃地間植中海拔落葉灌木、喬木的試驗,用以促進苗木天然更新的實況模擬,或當有促進高度抽長作用。凡此,總結30項建議,提供林務局卓參。 |
英文摘要 | Based on 3-year period of sample plot surveys, and interviews in depth with forest workers about the history and experiences on early logging and reforestation of Taiwan cypress forest, as well as from a monitoring of cypress plantation achievement in Alishan District we present here some suggestions concerning aspects of policy making, administration and technology. In the series, first, we questioned to the argument of "cypress forest can never be regenerated naturally". Having reviewed major cypress forest studies and related literatures, analyzing main themes, then integratiing field surveys and accumulated experiences, we suggested that there are two large groups of different regeneration systems in Taiwan cypress forests; namely: red cypress(Chamaecyparis formosensis) and hinoki cypress (C. obtusa var. Formosana). We have confirmed that they have been coordinating with earth body movement frequently happened in the island, and regenerate naturally and grow continuously on new vacant spots and slides created by earthquakes, or siol and stone runaways caused by heavy rainfalls. It is no exception for the Eastside Taiwan either. However, eastside cypress forests are found lower in altitude than those of in mid-western Taiwan. Also the divergence of associated vegetation composition indicates bio-geographic differentiation. For this year, after thorough examination and discussion of 80-year old Alishan cypress plantation we suggested this first time that after the cypress plantation crown closure, it should be thinned to leave less than 100 large trees per hectare so that to form a giant cypress stand in the future. With generous contribution of their precious experiences in cypress culturing of senior foresters we met, we proposed in this report a method of raising seedling "Bio-engineering" method. It may be considered as a test of inter-planting with deciduous shrubs or trees in nurseries at mid-elevation to simulate natural competition environment for cypress seedlings. The inter planting is speculated to timulate height growth of the cypress seedlings. A total of 30 suggestions of the lsimilar nature are presented to Taiwan Forest Service as references. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。