太原汾河蓄水区2014年丰水期叶绿素的时空变化及环境因子相关性分析  

TEMPORAL AND SPATIAL VARIATION OF CHLOROPHYLL AND THE CORRELATION ANALYSIS WITH ENVIRONMENTAL FACTORS IN THE TAIYUAN FENHE WATER RESERVE AREA IN FLOODING SEASON IN 2014

作　　者：吕虹瑞[1] 吕俊平[1] 刘琪[1] 谢树莲[1] 冯佳[1] 程革[2] 张建民[2] Lü Hong-Rui Lü Jun-Ping LIU Qi XIE Shu-Lian FENG Jia CHENG Ge ZHANG Jian-Min(School of Life Science, Shanxi University, Taiyuan 030006, China The Administration Committee of Fenhe Scenic Spot of Taiyuan City, Taiyuan 030002, China)

机构地区：[1]山西大学生命科学学院,太原030006 [2]太原市汾河景区管理委员会,太原030002

出　　处：《水生生物学报》2016年第6期1278-1286,共9页Acta Hydrobiologica Sinica

基　　金：山西省科技攻关项目-社会发展项目(20130313010-4);山西省科技基础条件平台建设项目(2015091004-0102)资助~~

摘　　要：应用主成分分析(PCA)和典范对应分析(CCA)方法,对太原汾河蓄水区的环境因子和浮游植物之间的关系进行分析和探讨。结果表明,太原汾河蓄水区水体叶绿素含量具有一定的时空差异性,变化范围为5.83—181.00 mg/m^3,各采样点7月的叶绿素含量整体较高,S8河段(南中环桥-祥云桥)具有最大值181.00 mg/m^3,而S1河段(柴村桥下)平均含量仅10.60 mg/m^3。叶绿素含量与高锰酸盐指数、化学需氧量、氨氮、总磷、氮磷比及pH相关性显著。PCA分析表明浮游植物生物量、有机物质、氮磷营养盐、水文气象状况以及水体光合作用强度都是影响汾河蓄水区水环境的因素,其中叶绿素、高锰酸盐指数、化学需氧量、总磷的影响更为显著。CCA结果表明蓝藻门、绿藻门、硅藻门植物的空间分布差异小,但相对多度值存在一定的差异,各样点之间以及环境因子的相关性存在不同程度的差异。Principal component analysis（PCA） and Canonical correspondence analysis（CCA） were used to investigate the relationships between environmental factors and phytoplankton of the Taiyuan Fenhe water reserve area in flooding season. Meanwhile, it studied the temporal and spatial distribution characteristic of chlorophyll concentration and the correlations between chlorophyll and other environmental factors. The results showed that chlorophyll concentration appeared some spatial and temporal difference in the Taiyuan Fenhe water reserve area, ranging from 5.83 to181.00 mg/m^3, and the mean chlorophyll value in July is higher than that of the other three months. The S8 sampling site reached to a maximum value at 181.00 mg/m^3, whereas S1 has the lowest level of mean chlorophyll value. Significantly correlation was found between chlorophyll concentration and COD_（Mn）, COD_（Cr）,NH_4~＋-N, TP, N/P and pH. Principal component analysis indicated that the factors affected the environment of Fenhe water reserve area including phytoplankton biomass, organic matters, nitrogen and phosphorous nutrients, hydrologic and meteorological conditions as well as photosynthesis intensity of water. Chl, COD_（Mn）, COD_（Cr）, and TP had significant effect among them. Through Canonical correspondence analysis, there was some difference of relative abundance among Cyanophyta, Chlorophyta and Bacillariophyta, but insignificant difference of spatial distribution. It was also revealed that the different correlations between environmental factors and sampling sites.

关 键 词：太原汾河蓄水区 叶绿素 环境因子 相关性 主成分分析 典范对应分析 

分 类 号：X171[环境科学与工程—环境科学] X522