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| 新优树种纳塔栎秋色叶变化及其对环境的适应性 | |
| 引用本文： | 许晓波. 新优树种纳塔栎秋色叶变化及其对环境的适应性[J]. 中国农学通报, 2015, 31(16): 14-18. DOI: 10.11924/j.issn.1000-6850.casb15010065 |
| 作者姓名： | 许晓波 |
| 作者单位： | (上海市绿化管理指导站,上海 200020） |
| 基金项目： | 基金项目：上海市农委重点攻关项目“城乡一体化建设中适宜树种筛选应用”[沪农科攻字(2011)第1-7号]。 |
| 摘 要： | 为探讨新优树种纳塔栎在城市绿地中的秋季表现，选择城区内的纳塔栎植株为研究对象，记录植物秋季叶色变化的过程，同时对叶绿素、类胡萝卜素、花青素等含量进行测定，从叶片色素、气候因子进行典型相关分析和回归分析。结果表明：纳塔栎在城区绿地中的秋季变色期约为30天；叶绿素a和花青素含量的高低决定着叶色；平均温度对叶色变化影响最大，并与叶绿素a呈极显著正相关、与花青素呈极显著负相关。平均温度(X1)和花青素(X2)含量之间的一元非线性回归模型为X2=39.184077/[1+EXP(-7.317131+0.734963X1)]，相关系数为0.9523(P<0.001)，通过平均温度的变化可以初步推断纳塔栎秋色叶变化情况。 |
| 关 键 词： | 农业气象自动观测站 农业气象自动观测站 Van Genuchten模型 土壤水分特征曲线 分析 |
| 收稿时间： | 2015-01-12 |
| 修稿时间： | 2015-05-18 |
Variation of Autumn-color Leaf and the Adaptability to Environment of Quercus nuttallii |
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| Xu Xiaobo. Variation of Autumn-color Leaf and the Adaptability to Environment of Quercus nuttallii[J]. Chinese Agricultural Science Bulletin, 2015, 31(16): 14-18. DOI: 10.11924/j.issn.1000-6850.casb15010065 | |
| Authors: | Xu Xiaobo |
| Affiliation: | (Shanghai Administrative and Directive Station for Afforestation, Shanghai 200020) |
| Abstract: | In order to study the behavior of Quercus nuttallii during the autumn in city green land, the variation process of its autumn-color leaf was recorded, and the contents of chlorophyll, carotenoid and anthocyanin were measured. The main factors of climate and environment which affected the autumn-color leaf were analyzed. It showed that the whole leaf color turning phase was 30 days. The main pigments caused the variation of autumn-color leaf were chlorophyll a and anthocyanin. The average temperature had great effect on autumn-color leaf, and had a significantly positive correlation with chlorophyll a, but a significantly negative correlation with anthocyanin. The simple linear regression model between the average temperature and anthocyanin was X2=39.184077/[1 EXP(-7.317131 0.734963X1)], the correlation coefficient was 0.9523(P<0.001). Therefore, the changes of autumn-color leaf can be inferred by the change of average temperature. |
| Keywords: | Quercus nuttallii autumn-color leaf chlorophyll carotenoid anthocyanin correlation |
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