CAJ | 학술논문

2010年5～7月，在西藏达孜县巴嘎雪湿地选择了7个采样站点，分两批采集水样28个，用活体观察和固定染色方法结合鉴定藻类的物种，用直接计数法统计藻类的数量，研究了巴嘎雪湿地藻类群落特征。共鉴定到藻类263种（包括12个未定名物种），隶属于7门9纲19目36科79属。其中双壳缝目（Biraphidinales）有66种，占25．10％，为优势类群；四胞藻目（Tetrasporales）有40种，占15．21％；无壳缝目（Araphidiales）有28种，占10．65％，为次优势类群；根金藻目（Rhizochrysidales）、双星藻目（Zygnematales）为罕见类群；其余各目为常见势类群。优势种类主要有小型黄丝藻（Tribonema minus）、湖沼圆筛藻（Coscinodiscus lacusteris）、窗格平板藻（Tabellaria fenestrata）、双头针杆藻（Syned amphicephala）、尖针杆藻（Synedra acus）、新月桥弯藻（Cymbella．cymbiformis）、小桥弯藻（Cymbella laevis）、尖异极藻（G．．acuminatum var.coronata）、缢缩异极藻（Gomphonema constrictum）、纤细异极藻（Gomphonema gracile）、棒形鼓藻（Gonatozygon monotaenium）。结果表明：巴嘎雪湿地的藻类物种丰富，群落结构复杂，湿地环境健康状况良好。对藻类群落特征参数与水环境主要理化因子作相关性分析，结果表明：pH与EC（p〈0．01）、TDS（p〈0．01）、Sal（p〈0．01）呈极显著的负相关；EC与TDS（p〈0．01）、Sal（p〈0．01）呈极显著的正相关；TDS与Sal（p〈0．01）、种类数与丰富度指数（p〈0．01）、多样性指数与均匀度指数（p〈0．01）呈极显著的正相关；丰富度指数与多样性指数（P〈O．05）呈显著性正相关。
2010년5～7월，재서장체자현파알설습지선택료7개채양참점，분량비채집수양28개，용활체관찰화고정염색방법결합감정조류적물충，용직접계수법통계조류적수량，연구료파알설습지조류군락특정。공감정도조류263충（포괄12개미정명물충），대속우7문9강19목36과79속。기중쌍각봉목（Biraphidinales）유66충，점25．10％，위우세류군；사포조목（Tetrasporales）유40충，점15．21％；무각봉목（Araphidiales）유28충，점10．65％，위차우세류군；근금조목（Rhizochrysidales）、쌍성조목（Zygnematales）위한견류군；기여각목위상견세류군。우세충류주요유소형황사조（Tribonema minus）、호소원사조（Coscinodiscus lacusteris）、창격평판조（Tabellaria fenestrata）、쌍두침간조（Syned amphicephala）、첨침간조（Synedra acus）、신월교만조（Cymbella．cymbiformis）、소교만조（Cymbella laevis）、첨이겁조（G．．acuminatum var.coronata）、액축이겁조（Gomphonema constrictum）、섬세이겁조（Gomphonema gracile）、봉형고조（Gonatozygon monotaenium）。결과표명：파알설습지적조류물충봉부，군락결구복잡，습지배경건강상황량호。대조류군락특정삼수여수배경주요이화인자작상관성분석，결과표명：pH여EC（p〈0．01）、TDS（p〈0．01）、Sal（p〈0．01）정겁현저적부상관；EC여TDS（p〈0．01）、Sal（p〈0．01）정겁현저적정상관；TDS여Sal（p〈0．01）、충류수여봉부도지수（p〈0．01）、다양성지수여균균도지수（p〈0．01）정겁현저적정상관；봉부도지수여다양성지수（P〈O．05）정현저성정상관。
The community characteristics and species diversity of algae in Bagarxue wetland were studied by observation in vivo, fixed and staining from May to July in 2010. Total of 263 species of algae including 12 unnamed species were identified from 28 water samples in 7 sampling sites and they belonging to 7 phylum, 9 classs, 19 orders, 36 families and 79 genera. （66 species belonging to 3 families and 7 genera of Baeillariophyta, accounting for 25.10% and 40 species belonging to 5 families and 10 genera of Chlorophyta, accounting for 15.21% of the total）. Biraphidinales was the dominant group and followed by Araphidiales. Rhizochrysidales and Zygnematales were the incidental groups of algae community in the Bagarxue wetland. Tribonema minus ,Coscinodiscus lacusteris ,Tabellaria fenestrata,Syned amphicephala,Synedra acus ,Cymbellca cymbiformis , Cymbella laevis , Gomphonema constrictum, Gomphonema gracile , G..acuminatum var. coronat and Gonatozygon monotaenium were the dominant species. Correlation analysis was carried between index of algae community structure and main physical and chemical factors. Result showed that pH is negatively correlated with EC （p〈0.01）, TDS （p 〈0.01）and Sal （p〈0.01）; EC is positively correlated with TDS （p 〈0.01）and Sal （p〈 0.01）; TDS, Sal and margalef index were significantly correlation with Number of species; indicated prominent is correlated to Shannon-Weaver index, Shannon-Weaver index is significantly correlation with Evenness index.