| 兰州北山生物结皮中陆生藻种类组成与群落结构 |
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| 引用本文： | 胡春香,张斌才,马红樱,刘永定,张德禄. 兰州北山生物结皮中陆生藻种类组成与群落结构[J]. 西北师范大学学报(自然科学版), 2003, 39(1): 59-63 |
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| 作者姓名： | 胡春香 张斌才 马红樱 刘永定 张德禄 |
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| 作者单位： | 西北师范大学生命科学学院 甘肃兰州730070(胡春香，张斌才，马红樱)，中国科学院水生生物研究所 湖北武汉430072(刘永定)，西北师范大学生命科学学院 甘肃兰州730070(张德禄) |
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| 基金项目： | 中国科学院重点项目基金资助项目 (KZ95 2 5 1 2 0 7)，国家自然科学基金资助项目 (30 0 0 70 15 4 ,30 170 0 2 2 )，甘肃省中青年基金资助项目 (YS 0 11 A2 5 0 2 6 )，西北师范大学中青年基金资助项目 (NWNU 2 0 0 1 0 6 ) |
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| 摘 要： | 通过对沙井驿、刘家堡、九州台、白塔山、小牛圈沟等样点采集的生物结皮样的培养和鉴定 ,研究了兰州市北山生物结皮中陆生藻种类组成及其群落结构 .结果发现 ,该地陆生藻共计 5 3种 ,其中蓝藻 34种 ,绿藻 7种 ,硅藻10种 ,裸藻 2种 .蓝藻中以丝状种类占优势 (6 5 % ) ,绿藻中仍以球状种类居多 (5 7% ) ,但也有不少丝状个体(43% ) .黄土结皮以非洲席藻为第一优势种 ,石崖表具鞘微鞘藻占绝对优势 ,人工草丛中小球藻最丰富 ;种类数在砾质黄土中最多 (2 3) ,黄粘土中最少 (16 ) .
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| 关 键 词： | 兰州北山 陆生藻 种类组成 群落结构 |
| 文章编号： | 1001-988X(2003)01-0059-05 |
| 修稿时间： | 2002-08-30 |
Species composition and community structure of terrestrial algae in the biological crusts of Lanzhou Northern Hill |
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| HU Chun xiang ,ZHANG Bin cai ,MA Hong ying ,LIU Yong ding ,ZHANG De lu. Species composition and community structure of terrestrial algae in the biological crusts of Lanzhou Northern Hill[J]. Journal of Northwest Normal University Natural Science (Bimonthly), 2003, 39(1): 59-63 |
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| Authors: | HU Chun xiang ZHANG Bin cai MA Hong ying LIU Yong ding ZHANG De lu |
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| Affiliation: | HU Chun xiang 1,ZHANG Bin cai 1,MA Hong ying 1,LIU Yong ding 2,ZHANG De lu 1 |
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| Abstract: | Soil algae collected from biological crusts of Shajingyi, Liujiabao,Jiuzhoutai,Baitaishan and Xiaoniuquangou of Lanzhou Northern Hill were cultured,observed and identified.A total of 53 terrestrial algae are found,in which 34 are blue green algae,7 green algae,10 diatoms and 2 euglenoids,and they are all common species.65% of blue green algae are filamentous and 57% green algae are coccal species,but a few filamentous green algae(43%)occurres as well.Phormidium africanum and Microcoleus vaginatus is respectively the first dominant species of loess crusts and stone cliffs,and Chlorella vulgaris is the most abundant in the artificial lawns.The highest diversity is found in the crusts of gravel loess(23),whereas the least species number occurres in the crusts of clay loess (16). |
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| Keywords: | Lanzhou Northern Hill terrestrial algae species composition community structure |
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