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題 名 | 福山試驗林十種闊葉樹種之光合成率、蒸散率及葉片導度與氣象因子之關係=The Photosynthetic Rate, Transpiration Rate and Leaf Conductance of Ten Broad-Leaved Trees in Fu-Shan Experimental Forest Related to Meteorological Factor |
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作 者 | 林信輝; 劉坤樹; | 書刊名 | 中華林學季刊 |
卷 期 | 30:3=118 1997.09[民86.09] |
頁 次 | 頁269-278 |
分類號 | 436.11 |
關鍵詞 | 優勢樹種; 光合成率; 蒸散率; 葉片導度; 氣象因子; Domitant trees; Photosynthetic rate; Transpiration rate; leaf conductance; Meteorological factors; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究選取宜蘭縣員山鄉福山植物園闊葉樹種苗木區內之八種樟科及兩種殼斗科植物為供試材料,於晴天日測定葉片淨光合成率、蒸散率與氣孔導度,分析其與各氣象因子間之相關性。試驗結果,十種供試植物之葉片光合成率與氣孔導度以鋸葉長尾栲之測值最大,長葉木薑子測值最小。各植物測值之季節性變化以三斗柯最小,而香桂、香楠及長葉木薑子之季節性差異較大。計算所得各植物之Ci/Ca值介於0.7∼0.9之間,此值與其他學者之測值比較,有偏大之情形,顯示其光合成率受氣孔因子之影響程度較低,此亦說明本試區重濕型氣候,其土壤水分與大氣水分應力較低之反應現象。另野外植物之葉片蒸散率與光度、葉溫及蒸氣壓差呈顯著正相關,葉片淨光合成率與氣孔導度間之相關性顯著。 |
英文摘要 | The dominant tree species in Fu-shan experimental forest, including 8 species of Laurel family and 2 species of Beech family, were selected to measure their leaf photosynthetic rate, Transpiration rate and leaf conductance in the field on sunny days, and analyze the relationships among photosynthetic gas exchange rates and measure meteorological data simulaneously. The results showed that the leaf photosynthetic rate and leaf conductance of Castanopsis carlesii was the highest among 10 tested trees, Listea acuminata was the lowest, while Pasania hancei showed the least seasonal variation. The calculated Ci/Ca ratios for all trees were between 0.7 and 0.9, which were higher than the average of other researchs' measurements, and showed that the photosynthesis of these tested trees, grown at heavy humid area, were less influenced by stomatal conductance factor. Besides, the leaf transpiration rate in the field had positive correlation with light intensity, leaf temperature and VPD. |
本系統中英文摘要資訊取自各篇刊載內容。