欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2020, Vol. 31 ›› Issue (9): 3101-3110.doi: 10.13287/j.1001-9332.202009.006

• • 上一篇    下一篇

生物炭和EM菌对黄河三角洲盐碱地田菁生长和光合特性的影响

崔倩, 夏江宝*, 刘京涛, 杨红军, 彭玲   

  1. 滨州学院山东省黄河三角洲生态环境重点实验室, 山东滨州 256603
  • 收稿日期:2020-03-18 接受日期:2020-07-02 出版日期:2020-09-15 发布日期:2021-03-15
  • 通讯作者: * E-mail: xiajb@163.com
  • 作者简介:崔 倩, 女, 1989年生, 博士。主要从事土壤肥力和植物生理研究。E-mail: cuiqian.1989@163.com
  • 基金资助:
    国家重点研发计划项目(2017YFC0505904)、山东省自然科学基金项目(ZR2019PD012)、山东省海岸带环境过程重点实验室(中国科学院烟台海岸带研究所)开放基金项目(2019SDHADKFJJ10)、山东省高等学校“青创科技支持”计划项目(2019KJD010)和泰山学者工程专项资金资助

Effects of biochar and EM application on growth and photosynthetic characteristics of Sesbania cannabina in saline-alkali soil of the Yellow River Delta, China

CUI Qian, XIA Jiang-bao*, LIU Jing-tao, YANG Hong-jun, PENG Ling   

  1. Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou 256603, Shandong, China
  • Received:2020-03-18 Accepted:2020-07-02 Online:2020-09-15 Published:2021-03-15
  • Contact: * E-mail: xiajb@163.com
  • Supported by:
    the National Key Research and Development Program of China (2017YFC0505904), the Natural Science Foundation of Shandong Province (ZR2019PD012), the Open Project of Shangdong Key Laboratory of Coastal Environmental Processes, Yantai Inistitute of Coastal Zone Research, Chinese Academy of Sciences (2019SDHADKFJJ10), the Youth Innovation Support Program of Shangdong Universities (2019KJD010), and the Taishan Scholar Program of Shangdong Province, China.

摘要: 为揭示生物炭和EM菌对黄河三角洲田菁生长和光合作用的影响,通过盆栽试验,进行不同EM菌处理(不添加EM菌,EM-;添加EM菌,EM+)和不同水平生物炭处理(0,B0;0.5%,B1;1.5%,B2;3%,B3;生物炭质量/土壤质量),测定田菁生长指标、光合光响应曲线和叶绿素荧光参数的变化。结果表明: 在生物炭和EM菌及其交互处理中,EM+B3处理效果最好,其中田菁株高、基径和总生物量比EM-B0分别显著增加69.5%、90.0%和141.1%。生物炭和EM菌显著改善田菁的光合作用,EM+B3处理田菁的净光合速率、蒸腾速率、水分利用效率、气孔导度比EM-B0分别提高93.8%、35.1%、43.4%、34.8%。生物炭和EM菌有效改善叶绿素荧光参数,EM+B3处理的潜在光化学效率、实际光化学效率、表观光合电子传递效率和非光化学淬灭系数比EM-B0分别显著提高25.8%、31.5%、37.2%和56.8%。田菁的生长指标、光合参数和叶绿素荧光参数在EM+处理下随着生物炭量的增加而增大,而在EM-处理下B3出现抑制现象。添加EM菌和3%生物炭(EM+B3)有助于提高田菁光合能力和叶绿素荧光特性,拓宽叶片的光照生态幅,增强保水抗旱性能,促进田菁的生长。

关键词: 生物炭, EM菌, 田菁, 光合特征, 叶绿素荧光参数

Abstract: We examined the effects of biochar and effective mircoorganisms (EM) application on growth and photosynthetic characteristics of Sesbania cannabina in the Yellow River Delta, by a pot experiment with different EM treatments (without EM addition, EM-; with EM addition, EM+) and a gradient of biochar treatments (0, B0; 0.5%, B1; 1.5%, B2; 3%, B3; biochar weight/soil weight). The growth parameters, photosynthetic light response curve and chlorophyll fluorescence characteristics of S. cannabina were measured. The results showed that the EM+B3 treatment had the best effect among all the treatments. Compared with the EM-B0 treatment, the EM+B3 treatment increased height, stem diameter, and total biomass by 69.5%, 90.0% and 141.1%, respectively. Biochar and EM significantly improved photosynthetic capacity. Compared with the EM-B0 treatment, the EM+B3 treatment significantly enhanced the maximum light response of net photosynthetic rate, transpiration rate, water use efficiency, and stomatal conductance by 93.8%, 35.1%, 43.4%, and 34.8%, respectively. Biochar and EM improved the parameters of chlorophyll fluorescence. Compared with the EM-B0 treatment, the EM+B3 treatment significantly increased the potential photochemical efficiency, the actual photochemical efficiency, the apparent electron transport rate and the non-photochemical quenching coefficient by 25.8%, 31.5%, 37.2%, and 56.8%, respectively. The parameters of growth, photosynthesis and chlorophyll fluorescence increased with the increasing biochar under EM+ treatments, whereas the B3 treatment had negative effect under EM- treatments. The co-addition of EM and 3% biochar (EM+B3) could improve the photosynthetic capacity and chlorophyll fluorescence characteristics of S. cannabina, broaden light ecological amplitude, boost the water retention and drought resistance property, and promote the growth of S. cannabina.

Key words: biochar, effective mircoorganisms, Sesbania cannabina, photosynthetic characteristics, chlorophyll fluorescence parameter