摘要
为给水库管理和富营养化防治提供科学依据,分析了百花湖水库水体透明度的时空分布,并对透明度与主要环境指标的相关性进行了分析。结果表明:监测期间百花湖水库水体透明度变化范围在0.5～2.3m,平均值为1.42m,各采样点透明度差异不明显且季节变化过程一致,透明度自春末夏初开始降至最低水平,夏末入秋持续升高,冬季维持在较高状态,入春后下降。对透明度和主要环境指标的相关性分析发现,叶绿素a是百花湖水库水体透明度的主要影响因子,溶解氧、水温、pH值和N/P对透明度的影响是间接的。
The spatial-temporal distribution of water transparency and the relationships between transparency and main environmental indexes were analyzed to provide a scientific basis for reservoir management and eutrophication prevention. The results showed that the Baihua Reservoir water transparency varied from 0.5 m to 2.3 m, and the mean value was 1.42 m during the monitoring period, no significant difference was detected among the sampling sites throughout the seasons, it was found that transparency was low during the flood season, increased in the late summer, and continuously increased to winter during the high water level operation stage. The correlation analysis results showed that chlorophyll a was the main influencing factor, dissolved oxygen, water temperature, pH and N/P were indirect influencing factors for Baihua Reservoir water transparency.
出处
《贵州农业科学》
CAS
北大核心
2013年第1期199-202,共4页
Guizhou Agricultural Sciences
基金
贵州省自然科学基金资助项目"两湖一库湖滨水淹区生态修复工程配套技术与综合评价研究"(20112182)
贵阳市重大科技专项"放养鲢鳙鱼后百花湖浮游植物群落结构特征研究"(20105-3)
关键词
百花湖水库
水体透明度
时空变化
叶绿素A
Baihua Reservoir
transparency
spatial-temporal changes
chlorophyll a
