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題名 | Effects of Changes in Spring Temperature on Flowering Dates of Woody Plants across China=春季溫度變化對中國木本植物開花日期的影響 |
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作者 | 陸佩玲; 于強; 劉建棟; 賀慶棠; Lu, Pei-ling; Yu, Qiang; Liu, Jian-dong; He, Qing-tang; |
期刊 | Botanical Studies |
出版日期 | 20060400 |
卷期 | 47:2 民95.04 |
頁次 | 頁153-161 |
分類號 | 435.41 |
語文 | eng |
關鍵詞 | 中國; 開花期; 物候; 溫度; China; Flowering date; Phenology; Temperature; |
中文摘要 | 在中國,植物物候期的發生時間受季風性氣候波動的影響。同時,物候期隨植物的種類和生長的地區而變化。中國物候網從1963到1988年對主要植物物候進行了觀測。本文利用4個值物種類:紫丁香(Syringa oblata Lindl.),紫荊(Cercis chinensis Bunge),刺槐(Robinia pseudoacaia L.)和合歡(Albizzia julibrissin Durazz),在10個測點的開花期記錄和相應的氣候資料,研究物候期對溫度變化的回應。這10個測點覆蓋了大範圍的區域,緯度變化於25-46°N,高度從海拔17m到1,922m。在歐亞大陸東部季風氣候條件下,春季溫度對植物開花期的影響占主導地位。春季溫度對紫丁香開花期的顯著影響階段隨地區而變化。中國南部地區在開花前的60-90天,北部地方在開花前的30-40天。這種差異是由於華北地區在開花前的溫暖季節較為短促造成的。其餘3種植物也有類似的情況。紫荊的開花期隨開花前30-60天內平均溫度升高提前的速率變化於2.7-5.9天/°C(平原地區),和開花前60-90天內的平均溫度7.1-14.8天/°C(雲貴高原地區)。紫丁香,刺槐和合觀的開花期對溫度增加的回應在平原地區分別為2.7-4.9,2.5-6.5和2.4-6.0天/°C,而在高原,刺槐的變化率為4.7-12.4天/°C,合歡為13.1天/°C。 |
英文摘要 | In China, changes in timing of plant phonological phases are influenced greatly by monsoonal climate fluctuations, and also very with species and region. Observations of phonological phases of tree were conducted in the Phenological Observation Network of China from 1963 to 1988. Records of flowering dates of four species (Syringa ablata Lindl., Cercis CHIENESIS Bunge, Robinia pseudoacacia L., Albizzia julibrissin Durazz) at ten sites, together with corresponding climate data, were used to investigate phenophase responses to variation in temperature. The ten sites extend over a wide area, with latitudes ranging from 25°N to 46°N, and altitudes ranging from 17 to 1,922 m a.s.l. Spring temperature was significantly related to flowering data of the trees under the monsoonal climate in the eastern Eurasian Continent. The period during which temperature influences flowering time varies from 60 to 90 days for Robinia pseudoacacia in the south to 30 to 40 days in the north, due to the shorter warm period before flowering in the north. The three other species showed similar trends of changes with latitude in the length of the period of temperature influence. The flowering season for Cercis chinensis in response to a temperature increase 30-60 days prior to flowering advanced from 2.7 to 5.9 days/°C in the low plain, and in response to a temperature increase 60-90 days prior to flowering, advanced from 7.1 to 14.8 days/°C in the Yunnan-guizhou Plateau. The flowering for Syringa oblate, Robinia pseudoacacia and Albizzia julibrissin, in response to a temperature increase advanced in the range 2.7-4.9, 2.5-6.5, and 2.4-6.0 days/°C in the low plain, respectively. Flowering advanced by 4.7-12.4 days/°C for Robinia pseudoacacia and 13.1 days/°Cfor Albizzia julibrissin in the plateau. |
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