首页 | 本刊简介 | 编委会 | 投稿征稿 | 期刊订阅 | 下载中心 | English
 
   
  论文快速检索

请输入关键词

 

 

   
  信息公告
访问总次数
15835092
今日访问
171
当前在线
0人
 
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 45次   下载 11 本文二维码信息
码上扫一扫!
分享到: 微信 更多
岩溶与非岩溶区典型植物最适光合模型和光合特征研究
倪隆康1, 何文1, 黄科朝1, 顾大形1, 黄玉清2
1.广西喀斯特植物保育与恢复生态学重点试验室, 广西壮族自治区中国科学院广西植物研究所, 广西 桂林 541006;2.北部湾环境演变与资源利用教育部重点实验室, 广西地表过程与智能模拟重点实验室, 南宁师范大学, 南宁 530001
摘要:  为探讨不同生境典型植物光合特征对主要环境因子的响应,选择Ethier&Livingston、Ellsworth和Sharkey等3种光合生化模型拟合我国西南岩溶与非岩溶区8种典型植物的A-Ci曲线。结果表明,用Ethier & Livingston模型拟合的A-Ci曲线要优于Ellsworth模型和Sharkey模型,拟合方程的决定系数(R2)为0.98~0.99(P < 0.01)。从Ethier&Livingston模型拟合的Vcmax和Jmax来看,岩溶区和非岩溶区乡土植物间的差异不显著,但都显著低于外来速生植物尾巨桉(Eucalyptus grandis×E.urophylla)。岩溶区和非岩溶区乡土植物的光合特征参数(Vcmax,25和Jmax,25)均与空气温度和土壤水分含量呈显著相关(P < 0.05)。除非岩溶区乡土植物的Jmax,25外,所有植物的光合特征参数与土壤水分拟合方程的R2均低于其与环境温度的,表明环境温度对典型植物Vcmax,25和Jmax,25的影响强于土壤含水量。
关键词:  岩溶  光合生化模型  光合特征  环境因子
DOI:10.11926/jtsb.4269
分类号:
基金项目:广西创新驱动发展专项(AA-17204087-9);广西自然科学基金项目(2018GXNSFAA294023,2019GXNSFBA245036);国家自然科学基金项目(41830648,31870382,32060243,32060369);广西植物研究所基本业务费(18005);广西喀斯特植物保育与恢复生态学重点实验室自主研究课题(19-A-04-03,18-A-02-01,19-050-6);广西科学院基本业务费(2019YJJ1009)资助
Studies on Optimal Photosynthetic Biochemical Model and Photosynthetic Characteristics of Typical Plants in Karst and Non-karst Regions
NI Long-kang1, HE Wen1, HUANG Ke-chao1, GU Da-xing1, HUANG Yu-qing2
1.Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, Guangxi, China;2.Key Laboratory of Environmental Evolution and Resource Utilization of the Beibu Gulf, Ministry of Education & Guangxi Key laboratory of Earth Surface Processes and Intelligent Simulation, Nanning Normal University, Nanning 530001, China
Abstract:  The aim was to screen the optimal model in fitting photosynthetic CO2response curve (A-Ci curve) of plants in different habitats, three biochemical models, including Ethier & Livingston, Ellsworth, and Sharkey model, were used to fit the A-Ci curves of 8 typical plants in karst and non-karst regions of southwest China. Then the photosynthetic parameters and their response to main environmental factors were analyzed. The results showed that Ethier & Livingston model was better than the other two models in fitting A-Ci curve of 8 typical plants, with determination coefficient (R2) from 0.98 to 0.99 (P<0.01). The photosynthetic parameters (Vcmax and Jmax) fitted by Ethier & Livingston model had no significant differences between karst and non-karst native plants (P>0.05), but both of them were significantly lower than that of Eucalyptus grandis×E. urophylla. Moreover, Vcmax,25 and Jmax,25 of karst and non-karst native plants were significantly correlated with air temperature and soil water content (P<0.05). However, the determination coefficients (R2) between air temperature and Vcmax,25 or Jmax,25 were higher than that between soil water content and Vcmax,25/Jmax,25 for all plants except of Jmax,25 of non-karst native plants. Therefore, these indicated that the influence of air temperature on Vcmax,25 and Jmax,25 of typical plants in this area was stronger than that of soil water content.
Key words:  Karst  Photosynthetic biochemical model  Photosynthetic character  Environment factor

Copyright 2007 版权所有 中国科学院华南植物园《热带亚热带植物学报》编辑部
地址: 广州市天河区兴科路723号 中国科学院华南植物园 《热带亚热带植物学报》编辑部 邮编:510650 电话: 86 (0)20-3725 2514  传真: E-mail: jtsb@scib.ac.cn
本系统由北京勤云科技发展有限公司设计
京ICP备09084417号-2