留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
王培, 曹建华, 李亮, 杨慧, 李光超. 不同来源小球藻对岩溶水Ca2+、HCO3-利用的初步研究[J]. 水生生物学报, 2013, 37(4): 626-631. DOI: 10.7541/2013.73
引用本文: 王培, 曹建华, 李亮, 杨慧, 李光超. 不同来源小球藻对岩溶水Ca2+、HCO3-利用的初步研究[J]. 水生生物学报, 2013, 37(4): 626-631. DOI: 10.7541/2013.73
WANG Pei, CAO Jian-Hua, LI Liang, YANG Hui, LI Guang-Chao. Utilization of Ca2+ and HCO3- in Karst water by chlorella from different sources[J]. ACTA HYDROBIOLOGICA SINICA, 2013, 37(4): 626-631. DOI: 10.7541/2013.73
Citation: WANG Pei, CAO Jian-Hua, LI Liang, YANG Hui, LI Guang-Chao. Utilization of Ca2+ and HCO3- in Karst water by chlorella from different sources[J]. ACTA HYDROBIOLOGICA SINICA, 2013, 37(4): 626-631. DOI: 10.7541/2013.73

不同来源小球藻对岩溶水Ca2+、HCO3-利用的初步研究

Utilization of Ca2+ and HCO3- in Karst water by chlorella from different sources

  • 摘要: 以外源小球藻和岩溶区筛选出的土著小球藻为研究对象, 在封闭体系中比较研究了两种不同来源小球藻对典型岩溶水中Ca2+、HCO3-的利用、藻细胞数量与其对Ca2+、HCO3-的利用率的关系和体系pH的变化。结果表明, 土著小球藻利用Ca2+、HCO3-的能力强于外源小球藻, 但外源小球藻对Ca2+的利用量高于土著小球藻, 而二者对HCO3-的利用量相同, 并且外源小球藻能够以胞外CaCO3形式产生沉淀, 而土著藻则不能形成沉淀。其次两体系中pH的变化显示, 两种小球藻光合作用都是先以水体中CO2为光合作用碳源, 然后利用HCO3-。外源小球藻能将岩溶水中29.648%的HCO3-吸收, 而土著藻能将40.625%的HCO3-通过其在食物链中的初级生产地位将岩溶碳汇转化进入到生态系统, 表现为净碳汇效应。

     

    Abstract: We compared the utilization of Ca2+ and HCO3- in typical karst water by exogenous chlorella and native chlorella in a closed system. Analyzed the relationship between chlorella cell numbers and the utilization rate of Ca2+ and HCO3- and the variation of pH value. The results showed that the native algae had higher ability in utilizing Ca2+ and HCO3- than exogenous chlorella, while exogenous chlorella had higher Ca2+ utilization amount than native algae. The utilization amounts of HCO3- of them were the same. In addition, exogenous chlorella can form CaCO3 sediment, but native can not. The variation of pH value in the closed system revealed that both of the two algae firstly utilized the dissolved carbon dioxide as photosynthesis carbon source, and then made use of HCO3-. Exogenous chlorella absorbed 29.648% HCO3- in the karst water, native algae utilized 40.625% HCO3-. As the primary producer in the food chain, the two kinds of aquatic algae transformed HCO3- and took it into the ecological system.

     

/

返回文章
返回