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題 名 | 澎湖生態造林之研究--25種恆春鄉土樹種在澎湖沙港的適應性研究 |
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作 者 | 李新鐸; 邱文良; 王相華; | 書刊名 | 林業試驗所研究報告季刊 |
卷 期 | 8:3 1993.09[民82.09] |
頁 次 | 頁209-218 |
分類號 | 436.285 |
關鍵詞 | 澎湖; 恆春; 鄉土樹種; 防風林; Peng Hu; Heng Chun; Indigenous tree species; Windbreak; |
語 文 | 中文(Chinese) |
中文摘要 | 25種恆春地區之鄉土樹種,於民國74年6月與木麻黃混植於澎湖沙港 地區,至民國81年10月,觀察此七年間之生長情形。其平均存活率為 67.8%, 最高之種類為黃槿,達98%,最低的蓮葉桐為14%;七年平均高度淨生長為174 公分,以破布烏最快,達386公分,銀葉樹最慢,為70公分,七年平均淨地徑 生長為33公厘,以黃槿最快,達78公厘,銀葉樹最慢,為 10公厘。第三年開 始,樹高生長在東北季風期間呈現負成長,然樹高年生長與地徑生長均為正值。 民國80年10月露絲颱風過境澎湖,受害植株在隔年春天多能恢復生長,僅蓮葉 桐及大葉山欖的受害指數大於1。調查結果顯示,大多樹種已漸能適應該地,故 澎湖部分地區可應用多數鄉土樹種混合造林方式增加當地植群變異度,以增強環 境林之保護能力。 |
英文摘要 | 25 indigenous tree species of Heng Chun had been planted mixedly with Casuarina equisetifolia L. in Sa Kang, Peng Hu in June, 1985. The average survival rate that was investigated in June, 1992 was 67.8%. Hibiscus tiliaceus L. and Excoecaria agallocha L. were the highest (90%). Hernandia sonora L. was the lowest (14%). The average net hight growth during seven years was 174cm. Ehretia dicksonii Hance was the highest (386cm), Heritiera littoralis Dryand. was the lowest (70cm). The average net basal growth of seven years was 33 mm, Hibiscus tiliaceus L. was the highest (78mm), Heritiera littoralis Dryand was the lowest (10mm). The height growth during North-East monsoon season was negative from October. 1987, but the year's net growth was positive. Although the great damage of Typhoon Luss in October 1991, most tees can regrowen next spring, only Hernadia sonora L. and palaquium formosanum Hayata with Damage Index higher than 1. Test datas show that the survival trees had adapted in this area. We suggest that multiple indigenous tree species windbreak would be great at part of areas in Peng-Hu. |
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