成年侧柏和刺槐对春季干旱的适应策略

摘要/Abstract

摘要： 本研究以成年侧柏和刺槐为对象，分析春季干旱胁迫对叶片、根系形态和生理特性的影响，比较2树种在干旱胁迫下的适应策略。结果表明：春季干旱胁迫下，侧柏叶片脯氨酸和可溶性蛋白含量及SOD和POD活性显著低于刺槐叶片（P<0.05），可溶性糖含量和CAT活性显著高于刺槐叶片（P<0.05），两树种叶片丙二醛含量无显著差异（P>0.05）；侧柏根系脯氨酸和可溶性蛋白含量及POD和CAT活性显著低于刺槐根系（P<0.05），可溶性糖和丙二醛含量显著高于刺槐根系（P<0.05）。侧柏比叶重和根系活力显著高于刺槐（P<0.05），刺槐根长密度和根面积指数显著高于侧柏（P<0.05）。这说明春季干旱胁迫下成年侧柏和刺槐的渗透调节物质含量及抗氧化酶活性不同，春季干旱对两树种叶片伤害程度相似，而对侧柏根系伤害更大；成年侧柏主要采取耐旱策略，刺槐主要采用避旱策略。

关键词: 气象因子, 刨花楠, 径向变异, 木材特性, 生长轮年龄

Abstract: In the present study, the effects of spring drought stress on morphology and physiological characteristics of leaves and roots of mature Platycladus orientalis and Robinia pseudoacacia were analyzed and the adaptive strategies of the two tree species under drought stress were compared. The results showed that the proline and soluble protein contents, and SOD and POD activities in leaves of P. orientalis were significantly lower than those in leaves of R. pseudoacacia (P<0.05), but the soluble sugar content and CAT activity in leaves of P. orientalis were significantly higher than those in leaves of R. pseudoacacia under spring drought stress (P<0.05). Meanwhile, the difference in malondialdehyde content in leaves was not significant between P. orientalis and R. pseudoacacia (P>0.05). The proline and soluble protein contents, and POD and CAT activities in roots of P. orientalis were significantly lower than those in roots of R. pseudoacacia (P<0.05). However, the soluble sugar and malondialdehyde contents in roots of P. orientalis were significantly higher than those in roots of R. pseudoacacia (P<0.05). The specific leaf weight and root activity of P. orientalis were significantly higher than those of R. pseudoacacia (P<0.05). The root length density and root area index of R. pseudoacacia were significantly greater than those of P. orientalis(P<0.05). These results indicated that there were differences in permeating substance contents and antioxidative enzyme activities between P. orientalis and R. pseudoacacia under spring drought stress. The damages of spring drought to leaves were similar between P. orientalis and R. pseudoacacia, but the damages were more severe to the roots of P. orientalis. Adult P. orientalis mainly adopted droughttolerance strategies, while mature R. Pseudoacacia mainly adopted droughtavoidance strategies under spring drought.

Key words: growth ring age, climatic factor, radical variation, wood property, Machilus pauhoi

王凯*,赵成姣,邓杰,张莹,高爽. 成年侧柏和刺槐对春季干旱的适应策略[J]. 生态学杂志.

WANG Kai*, ZHAO Cheng-jiao, DENG Jie, ZHANG Ying, GAO Shuang. Adaptive strategies of adult Platycladus orientalis and Robinia pseudoacacia to spring drought.[J]. cje.

[1]	胡宇科, 赵仲辉, 项文化. 基于涡度相关法的会同杉木林蒸散特征及与彭曼联合法对比 [J]. 生态学杂志, 2023, 42(9): 2266-2275.
[2]	程洁茹, 钟全林, 邹宇星, 常云妮, 廖鹏辉. 氮磷配施对刨花楠幼苗相对生长速率与细根性状关系的影响 [J]. 生态学杂志, 2023, 42(8): 1811-1819.
[3]	武梦晗, 王弋. 新疆莎车灌区农作物需水量和产量特征及其影响因素 [J]. 生态学杂志, 2023, 42(8): 1858-1868.
[4]	孙晨娜, 张晶, GNANAMOORTHY Palingamoorthy, 张一平, 陈辉, 邓云, 金艳强, 宋清海. 西双版纳人工橡胶林冠层温度及其影响因子 [J]. 生态学杂志, 2022, 41(11): 2081-2089.
[5]	田青兰, 吴艳艳, 刘洁云, 黄伟华, 牟海飞, 张英俊, 韦绍龙, 韦弟. 广西地区西番莲产量和品质形成特征及其对气象因子的响应 [J]. 生态学杂志, 2021, 40(7): 1924-1936.
[6]	李超, 张加慧, 郭栋, 林琦琪, 张时语, 朱涵宇, 王帅, 胡帅, 李晓超, 朴琳, 李明. 气象因子对寒地玉米籽粒灌浆进程的影响 [J]. 生态学杂志, 2020, 39(9): 2974-2983.
[7]	史晓亮,吴梦月*,张娜,丁皓. 三江平原植被水分利用效率时空变化及其对气象因子变化的响应 [J]. 生态学杂志, 2020, 39(5): 1651-1663.
[8]	曹恭祥,郭中,王云霓,季蒙,韩珊珊,耿庆春,冯丽红,刘海利. 呼伦贝尔沙地樟子松人工林乔木层固碳速率及其对气象因子的响应 [J]. 生态学杂志, 2020, 39(4): 1082-1090.
[9]	谢远玉,王培娟,朱凌金,陈星,黄莹. 基于气象因子的赣南脐橙气候品质指标评价模型 [J]. 生态学杂志, 2019, 38(7): 2265-2274.
[10]	王云霓,曹恭祥,王彦辉,徐丽宏,刘永宏,王晓江. 六盘山南侧不同坡位华北落叶松人工林树干液流特征及其环境影响因子 [J]. 生态学杂志, 2018, 37(7): 1932-1942.
[11]	李谦,景元书,马美娟,王晗,李根. 低丘红壤区稻田实际蒸散特征及其气象影响因素 [J]. 生态学杂志, 2018, 37(1): 219-226.
[12]	卢志朋1,2,魏亚伟1,2,李志远1,2,郭鑫炜1,2,周永斌1,2*. 辽西北沙地樟子松树干液流的变化特征及其影响因素 [J]. 生态学杂志, 2017, 36(11): 3182-3189.
[13]	李阳1,2,景元书1,2,3*,李根1,2,景梽淏1,2. 低丘红壤区集水区和田块尺度农田能量平衡特征比较 [J]. 生态学杂志, 2016, 35(9): 2393-2403.
[14]	娄源海,余新晓*,邓文平,贾国栋,刘自强. 北京山区三种植物叶片水δ¹⁸O特征及影响因子 [J]. 生态学杂志, 2016, 35(5): 1240-1247.
[15]	周斌1,李辑1**,林俊杰2,3,李雨鸿1,苏航4,王婷1. 辽宁省春季土壤相对湿度特征及影响因素 [J]. 生态学杂志, 2015, 34(6): 1630-1637.

成年侧柏和刺槐对春季干旱的适应策略

Adaptive strategies of adult Platycladus orientalis and Robinia pseudoacacia to spring drought.

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价