草地学报

草地学报 ›› 2016, Vol. 24 ›› Issue (5): 1134-1138.DOI: 10.11733/j.issn.1007-0435.2016.05.032

• 研究专报 • 上一篇    下一篇

牛鞭草叶绿素荧光特征对不同水淹和种植密度的响应

陈锦平1,2, 魏虹1, 马文超1, 曾成城1, 王振夏1   

  1. 1. 三峡库区生态环境教育部重点实验室 西南大学生命科学学院, 重庆 400715;
    2. 广西农业科学院农业资源与环境研究所, 广西 南宁 530007
  • 收稿日期:2015-03-12 修回日期:2015-11-12 出版日期:2016-10-15 发布日期:2017-01-13
  • 通讯作者: 魏虹
  • 作者简介:陈锦平(1989-),男,广西岑溪人,硕士研究生,主要从事应用生态学研究,E-mail:447355175@qq.com
  • 基金资助:

    国家国际科技合作专项（2015DFA90900）；三峡后续工作库区生态与生物多样性保护专项项目（5000002013BB5200002）；重庆市林业重点科技攻关项目（渝林科研2015-6）；中央财政林业科技推广示范项目（渝林科推[2014-10]）资助

Responses of Chlorophyll Fluorescence Characteristics of Hemarthria altissima to Different Floods and Planting Densities

CHEN Jin-ping1,2, WEI Hong1, MA Wen-chao1, ZENG Cheng-cheng1, WANG Zhen-xia1   

  1. 1. Key Laboratory of Eco-environments in Three Gorges Reservoir Region(Ministry of Education), College of Life Sciences, Southwest University, Chongqing 400715, China;
    2. Agriculeural Resources and Environment Research Institute, Guangxi Academy of scie nces, Nanning, Guangxi Province 530007, China
  • Received:2015-03-12 Revised:2015-11-12 Online:2016-10-15 Published:2017-01-13

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摘要：

为研究不同水淹条件下牛鞭草（Hemarthria altissima（Poir.）Stapf et C. E. Hubb.）最适宜的种植密度，设置4种不同水分条件和4种不同的种植密度，测定其叶绿素含量及荧光参数。结果表明：非全淹条件下牛鞭草光化学反应无明显损害，种植密度不是其光合能力的限制性因子；全淹明显抑制牛鞭草的光合性能，在全淹生境下，建议进行高密度种植。

关键词: 牛鞭草, 水淹, 种植密度, 叶绿素, 叶绿素荧光

Abstract:

To estimate the optimum plant density under different flood conditions, an experiment was conducted to investigate the effects of variations in flood conditions and planting densities on the photosynthetic pigment contents and chlorophyll fluorescence of H. altissima. Four flood treatments were set, interacted with four different planting densities. The results showed that non-submergence treatments caused no obvious damage to the photochemical reactions of H. altissima. Planting density was not a limiting factor for photosynthesis ability of H. altissima in the non-submergence area. Submergence inhibited the photosynthetic capacity of H. altissima significantly and high planting density was suggested in the long-term submerged area.

Key words: Hemarthria altissima, Flooding, Planting density, Photosynthetic pigments, Chlorophyll fluorescence

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