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西北干旱荒漠区种子植物科的区系分析
引用本文:党荣理,潘晓玲.西北干旱荒漠区种子植物科的区系分析[J].西北植物学报,2002,22(1):24-32.
作者姓名:党荣理  潘晓玲
作者单位:1. 中国人民解放军区卫生防疫大队,乌鲁木齐,830011
2. 新疆大学干旱生态研究所,乌鲁木齐,830046
基金项目:国家重点基础研究发展规划项目 ( G1 9990 4 35 0 3),新疆科委基金项目
摘    要:西北干旱荒漠区分布有种子植物82科、484属、1704种,优势现象明显,优势科11个,它们是菊科、豆科、禾本科、藜科,十字花科、蓼科,莎草科、毛莨科、蔷薇科、唇形科和百合科;表征科8个,它们是香蒲科,麻黄科,柽柳科、蒺藜科,胡颓子科、藜科、眼子菜科和蓼科。地理成分多样,其中以世界广布成分为主,共37科,占总科数的45.12%,其次为温带成分(包括热带至温带,亚热带至温带,温带,温带至寒带),共有31科,占总科数的37.80%,热带成分,热带致亚热带成分较少,共14科,占总科数的17.07%。这些反映出植物的分布与本地区气候相适应的特点。

关 键 词:种子植物科  区系  西北干旱荒漠区
文章编号:1000-4025(2002)01-0024-09
修稿时间:2001年2月23日

Floristic analysis of seed plant families in West-North Desert of China
DANG Rong li,PAN Xiao ling.Floristic analysis of seed plant families in West-North Desert of China[J].Acta Botanica Boreali-Occidentalia Sinica,2002,22(1):24-32.
Authors:DANG Rong li  PAN Xiao ling
Institution:DANG Rong li 1,PAN Xiao ling 2
Abstract:There are 82 families 484 genius 1704 species seed plants and obvious dominant phenomenon in West North Desert of China.There are 11 dominant families (Compositae?Leguminosae?Graminaea?Chenopodiacea?Cruciferae?Polygonaceae?Cyperaceae?Ranunculaceae?Rosaceae?Labiatae?Liliaceae) and 8 typical families (Typhaceae?Ephedraceae?Tamaricaceae?Zygophyllaceae?Chenopodiaceae?Elaeagnaceae?Polygonaceae?Potamogetonaceae).The flora has a diverse geographical elements,the overwhelming number is cosmopolitan elements (37 families) accounting for 45.12%,the second number is temperate elements (31 families) accounting for 37.80%,including tropical to temperate,subtropical to temperate,temperate,temperate to frigid.Pure tropical and tropical to subtropical families is only 14 families accounting for 17.07%.This phenomenon is the result of the broad latitudes and diversifies habitats in West North of China.It is shown that most of the dominant families are cosmopolitan,most of typical families are temperate.
Keywords:family of seed plant  flora  West  North Desert of China
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