首页|期刊导航|中国海洋湖沼学报（英文版）|Preliminary description of diatom community and its relationship with water physicochemical variables in Qixinghe Wetland
中国海洋湖沼学报（英文版）2012，Vol.30Issue(3)：379-387,9.DOI:10.1007/s00343-012-1108-9
Preliminary description of diatom community and its relationship with water physicochemical variables in Qixinghe Wetland
Preliminary description of diatom community and its relationship with water physicochemical variables in Qixinghe Wetland
摘要
Abstract
Wetlands play a very important role in ecosystems.Qixinghe Wetland is a nature reserve area in northeastern China.In this paper,diatom communities and environmental qualities were investigated at eight sites in Qixinghe Wetland.This study was to examine diatom species patterns in relation to environmental variables in wetlands,and to use diatoms as indicators to water quality in wetlands and wetland classification.Diatoms were sampled in summers and autumns in 2002 and 2004,during which 180 taxa were identified.Environmental variations in pH,temperature,biochemical oxygen demand (BOD),and chemical oxygen demand (COD) were measured.The seasonal composition and abundance of diatoms changed greatly during the study period.The relationship between diatoms and chemical water quality was estimated statistically.Canonical correspondence analysis (CCA) with forward selection and Monte Carlo permutation tests revealed that all water environmental variables changed during the study period (P＜0.05).Among all the parameters,variation in BOD among the sites was a very important determinant of species composition according to the CCA,and BOD decreased from 2002 to 2004.Our results suggest that the water quality had improved during the three-year period because of enhanced environmental protection with less human disturbance.We conclude that diatoms can be used to indicate water quality and habitat conditions in this wetland.关键词
diatom/canonical correspondence analysis(CCA)/Qixinghe WetlandKey words
diatom/canonical correspondence analysis(CCA)/Qixinghe Wetland引用本文复制引用
FAN Yawen,LI Jing,MEN Xiaoyu,LIU Yan..Preliminary description of diatom community and its relationship with water physicochemical variables in Qixinghe Wetland[J].中国海洋湖沼学报（英文版）,2012,30(3):379-387,9.基金项目
Supported by the National Natural Science Foundation of China (Nos.30870157,31070183),the Natural Science Foundation of Heilongjiang Province,China (No.C200828),the Aid Program for Science and Technology Innovative Research Team (No.KJTD2011-2),and the Projects in advance of Harbin Normal University （Nos.30870157,31070183）
