| 香山黄栌叶色和色素组成的相互关系及时空变化 |
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| 引用本文： | 葛雨萱,王亮生,周肖红,甘长青.香山黄栌叶色和色素组成的相互关系及时空变化[J].林业科学,2011,47(4). |
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| 作者姓名： | 葛雨萱 王亮生 周肖红 甘长青 |
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| 作者单位： | 1. 北京市香山公园管理处,北京,100093
2. 中国科学院植物研究所北京植物园,北京,100093 |
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| 基金项目： | 北京市自然科学基金(6072021) |
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| 摘 要： | 以北京香山不同海拔处生长的黄栌为材料,分析叶色(明度L*值、色相a*值和b*值、彩度C*值)与叶片色素组成(花青素苷、黄酮醇苷、叶绿素、类胡萝卜素)的关系。结果表明:色相a*值与叶绿素含量成负相关,与花青素苷含量成正相关,即叶色变化过程中,叶绿素含量的下降,花青素苷含量的增加是黄栌叶片绿色褪去、红色显现的主要原因;黄酮醇苷含量有上升的趋势,影响叶片的明度L*值和色相b*值;类胡萝卜素含量比较稳定,与叶色变化无显著相关性。2007年秋季调查香山从195～564 m范围内不同海拔高度处黄栌叶色和色素组成的时空变化规律。时间尺度上,高海拔564 m和中海拔466,315 m处的变色规律基本一致,以564 m处样地为例,从10月12日起黄栌叶片的边缘或沿叶脉处已开始变红,至10月24日色相a*值达最大值,呈现出最佳观赏效果,随后色相a*值逐渐下降;低海拔195 m在10月4日—11月9日间,色相a*值呈现一直上升的趋势。空间尺度上,高海拔564 m处的黄栌变色较早,叶片变红后,落叶加快,适合前期(10月20日至10月28日)观赏。中海拔466和315m处黄栌与高海拔564 m处变色期一致,但红叶期持续时间久,观赏期长...
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| 关 键 词： | 黄栌 叶色 花青素苷 叶绿素 时空变化 |
Correlation between the Leaf Color and Pigments Composition of Cotinus coggygria in Fragrant Hills Park and Their Temporal and Spatial Variation |
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| Ge Yuxuan,Wang Liangsheng,Zhou Xiaohong,Gan Changqing.Correlation between the Leaf Color and Pigments Composition of Cotinus coggygria in Fragrant Hills Park and Their Temporal and Spatial Variation[J].Scientia Silvae Sinicae,2011,47(4). |
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| Authors: | Ge Yuxuan Wang Liangsheng Zhou Xiaohong Gan Changqing |
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| Institution: | Ge Yuxuan1 Wang Liangsheng2 Zhou Xiaohong1 Gan Changqing1 (1.Management Department of Beijing Fragrant Hills Park Beijing 100093,2.Beijing Botanical Garden,Institute of Botany,Chinese Academy of Sciences Beijing 100093) |
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| Abstract: | The leaves of Cotinus coggygria in Fragrant Hills Park at different altitudes were taken as the materials.The correlation between the leaf color and pigments composition of C.coggygria was analyzed.The results showed that the value of leaf color chroma a* was negatively with the contents of chlorophylls and positively with anthocyanins,respectively.The descending chlorophylls and ascending anthocyanins contents were the main factors responsible for the leaf color reddening.The content of flavonols was in an... |
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| Keywords: | Cotinus coggygria leaf color anthocyanin chlorophyll temporal and spatial variation |
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