西藏大学学报（自然科学版）
西藏大學學報（自然科學版）
서장대학학보（자연과학판）
Journal of Tibet University
2015年
2期
1-8
,共8页
巴桑%刘伟伟%赵攀登%葛艳飞%强巴塔庆
巴桑%劉偉偉%趙攀登%葛豔飛%彊巴塔慶
파상%류위위%조반등%갈염비%강파탑경
藻类%虎头山水库%物种多样性%环境因子
藻類%虎頭山水庫%物種多樣性%環境因子
조류%호두산수고%물충다양성%배경인자
Alga%Hutoushan reservoir%Species diversity%Environmental factors
为研究西藏拉萨市林周县虎头山水库春季藻类群落结构特征与水体环境因子间的关系,于2015年5月在虎头山水库设置了六个采样点,用活体观察法鉴定藻类物种,并用直接计数法统计藻类的数量.共鉴定出183种藻类,隶属于8门10纲22目30科51属,其中双壳缝目49种,占26.78%,为优势类群;无壳缝目25种,占13.66%,为次优势类群;气球藻目1种,占0.55%,为罕见类群,其余为常见类群.优势种有简单舟形藻(Navicula simplex)、针状蓝纤维藻(Dactylococcopsis acicularis)、尖针杆藻(Synedra acus)、放射舟形藻(Navicula radiosa)、小球藻(Chlorella vulgaris)、颤丝藻(Ulotrix osillarina).结果表明,该水库藻类物种丰富,群落结构复杂,各采样点的藻类,相似度低,具有局部地域性和小环境的特征.藻类群落结构参数与水体理化因子间的相关性表明,水体理化因子与藻类群落组成无相关性.
為研究西藏拉薩市林週縣虎頭山水庫春季藻類群落結構特徵與水體環境因子間的關繫,于2015年5月在虎頭山水庫設置瞭六箇採樣點,用活體觀察法鑒定藻類物種,併用直接計數法統計藻類的數量.共鑒定齣183種藻類,隸屬于8門10綱22目30科51屬,其中雙殼縫目49種,佔26.78%,為優勢類群;無殼縫目25種,佔13.66%,為次優勢類群;氣毬藻目1種,佔0.55%,為罕見類群,其餘為常見類群.優勢種有簡單舟形藻(Navicula simplex)、針狀藍纖維藻(Dactylococcopsis acicularis)、尖針桿藻(Synedra acus)、放射舟形藻(Navicula radiosa)、小毬藻(Chlorella vulgaris)、顫絲藻(Ulotrix osillarina).結果錶明,該水庫藻類物種豐富,群落結構複雜,各採樣點的藻類,相似度低,具有跼部地域性和小環境的特徵.藻類群落結構參數與水體理化因子間的相關性錶明,水體理化因子與藻類群落組成無相關性.
위연구서장랍살시림주현호두산수고춘계조류군락결구특정여수체배경인자간적관계,우2015년5월재호두산수고설치료륙개채양점,용활체관찰법감정조류물충,병용직접계수법통계조류적수량.공감정출183충조류,대속우8문10강22목30과51속,기중쌍각봉목49충,점26.78%,위우세류군;무각봉목25충,점13.66%,위차우세류군;기구조목1충,점0.55%,위한견류군,기여위상견류군.우세충유간단주형조(Navicula simplex)、침상람섬유조(Dactylococcopsis acicularis)、첨침간조(Synedra acus)、방사주형조(Navicula radiosa)、소구조(Chlorella vulgaris)、전사조(Ulotrix osillarina).결과표명,해수고조류물충봉부,군락결구복잡,각채양점적조류,상사도저,구유국부지역성화소배경적특정.조류군락결구삼수여수체이화인자간적상관성표명,수체이화인자여조류군락조성무상관성.
This study was carried out in order to examining characteristics of algae community structure and rela-tionship between that and water physicochemical factors in Hutoushan reservoir. All together 6 samples were col-lected in the reservoir in May 2015. In vivo microscopic observation was applied for algae species identification. The number of algae species was counted by direct counting method. A total of 183 species were indentified, which belonging to 51 genera, 30 families, 22 orders, 10 classes and 8 phyla. There were 49 species of Biraphidi-nales, accounting for 26.78%of the total, as the dominant groups and, 25 species of Araphidiales, accounting for 13.66%of the total, as the secondary dominant groups. There were 1 species of Botrydiales Ettle, accounting on-ly for 0.55%of the total, it was the rare group. The rest species were common groups. The results showed that the algae species in the reservoir was highly rich and the community structure was complex, however, with signifi-cant differences between individual sampling sites. Correlation analysis between the community parameters and water physicochemical factors indicated that there was no correlation between these factors.
