黄国佳,李秋华,陈椽,王安平,杨民,张垒,欧腾.贵州高原三板溪水库浮游植物功能群时空分布特征[J].环境科学学报,2015,35(2):418-428
贵州高原三板溪水库浮游植物功能群时空分布特征
- Phytoplankton functional groups and their spatial and temporal distribution characteristics in Sanbanxi Reservoir, Guizhou Province
- 基金项目：国家重点基础研究发展计划"973"前期(No.2012CB426506);国家自然科学基金(No.41163005);贵州省科技厅项目(黔科合人才团队(2013)4024,黔科合区域合[2013]7005);贵州省教育厅项目(黔教合KY字[2013]113)
- 黄国佳
- 1. 贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室, 贵阳 550001;2. 贵州师范大学生命科学学院, 贵阳 550001
- 李秋华
- 贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室, 贵阳 550001
- 陈椽
- 贵州师范大学生命科学学院, 贵阳 550001
- 王安平
- 贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室, 贵阳 550001
- 张垒
- 贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室, 贵阳 550001
- 欧腾
- 贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室, 贵阳 550001
- 摘要：为探究贵州高原三板溪水库的浮游植物功能群时空分布特征,于2012-2013年枯水期(11月)、平水期(4月)、丰水期(7月)对三板溪水库浮游植物与水样进行分层采样分析.研究结果表明,水库浮游植物可分为21个功能群,其优势功能群具有明显的水期分布特征:枯水期P+X1+D+J→平水期P+B+C+G→丰水期M+H1+S1+J,垂直分布中平水期和丰水期优势功能群在10 m左右发生变化,枯水期在70 m处变化;各时期水体热分层及营养物质分布差异是产生该特征的主要原因;浮游植物功能群时空分布特征受环境变化影响,水温、pH和N/P变化是浮游植物功能群结构变化的最主要因素;浮游植物功能群生长策略变化规律为:枯水期CR/C/S策略藻种→平水期R/CR/CS策略藻种→丰水期S /CS/ CR/R策略藻种;通过浮游植物功能群与生境之间的相互关系可以得出:三板溪水库水体处于富营养状态.
- Abstract：In order to explore the spatial and temporal distribution characteristics of phytoplankton functional groups in Sanbanxi Reservoir of Guizhou Province, phytoplankton samples collected in different depths in the dry season (November 2012), level period (April 2013) and wet season (July 2013) were characterized. Results suggested that there were 21 functional groups of phytoplankton. The dominant functional groups had obvious distribution patterns: P+X1+D+J in the dry season, P+B+C+G in the level period and M+H1+S1+J in the wet season. The dominant functional groups changed at about 10 m depth during the level period and wet season, and changed at 70 m depth during the dry season. This was caused by the different characteristics of the water thermal stratification and nutrient distribution in different seasons. The spatial and temporal distribution patterns of phytoplankton functional groups were affected by climate change. The variation of water temperature, pH and N/P were the main factors leading to the change of phytoplankton functional groups. The strategy of phytoplankton growth followed the law: CR/C/S in the dry season→R/CR/CS in the level period→S/CS/CR/R in the wet season. The composition of phytoplankton functional groups showed that Sanbanxi Reservoir was in the eutrophication state.
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