藏北双湖地区种子植物组成及其分布区系特征
|
摘要
文章将藏北双湖地区作为研究地点,通过野外数据采集和室内分析,对该区域种子植物科、属组成和植物区系特征进行了分析。结果显示:双湖地区共记录了197种种子植物,隶属32科,84属,其中裸子植物1科1属2种,被子植物31科83属195种。本区种子植物科的组成中,菊科、莎草科、蝶形花科、禾本科和龙胆科为优势科。属的组成中,较大属只有风毛菊属,为优势属;中型属和单种属较多,所含种数占总种数的92.39%,是组成本区种子植物的主体。区域种子植物分布区类型分析结果显示:在科的分布类型中世界广布型和北温带分布型科占优势,分别占本区总科数的53.13%和21.87%;在属的分布类型中北温带分布型和世界广布型属占优势,分别占本区总属数的33.33%和17.86%;大部分科集中在世界广布型,而大部分属集中在温带分布型。
The composition characteristics of seed plant family and genus in Shuanghu area, northern Tibet were analyzed by collecting data in the field and laboratory analysis. A total of 197 species of seed plant were recorded in Shuanghu area, belonging to 32 families and 84 genera, including 1 family, 1 genus and 2 species of gymnosperm, and 31 families, 83 genera and 195 species of angiosperm. The analysis on family and genus composition of seed plant showed that Compositae, Cyperaceae, Papilionaceae and Gramineae are the dominant families in the area, and Saussurea, Kobresia, Carex, Astragalus and Pedicularis are the dominant genera. The results of analysis on family geographical distribution types of seed plant showed that families in Cosmopolitan and North Temperate distribution types are the dominant family and accounting for 53.13% and 21.87% of the total number of families in the area, respectively. The analysis on genus geographical distribution types of seed plant showed that genera in Temperate and Cosmopolitan distribution types are the dominant genus and accounting for 33.33% and17.86% of the total number of genus, and the most of the families concentrated in the Cosmopolitan distribution type and the most of genera concentrated in the Temperate distribution type.
The composition characteristics of seed plant family and genus in Shuanghu area, northern Tibet were analyzed by collecting data in the field and laboratory analysis. A total of 197 species of seed plant were recorded in Shuanghu area, belonging to 32 families and 84 genera, including 1 family, 1 genus and 2 species of gymnosperm, and 31 families, 83 genera and 195 species of angiosperm. The analysis on family and genus composition of seed plant showed that Compositae, Cyperaceae, Papilionaceae and Gramineae are the dominant families in the area, and Saussurea, Kobresia, Carex, Astragalus and Pedicularis are the dominant genera. The results of analysis on family geographical distribution types of seed plant showed that families in Cosmopolitan and North Temperate distribution types are the dominant family and accounting for 53.13% and 21.87% of the total number of families in the area, respectively. The analysis on genus geographical distribution types of seed plant showed that genera in Temperate and Cosmopolitan distribution types are the dominant genus and accounting for 33.33% and17.86% of the total number of genus, and the most of the families concentrated in the Cosmopolitan distribution type and the most of genera concentrated in the Temperate distribution type.
引文
[1]吉珠平措,次仁央宗,谢伟,等.双湖年鉴[M].双湖年鉴编辑部,2016.
[2]Ward F,k.&Hemsley W.B.A Sketch of the Geography and Botany of Tibet[J].Journ.Linn,Soc.Bot.,1935(50):239-365.
[3]郑度.西藏植物区系地理区域分异的探讨[J].植物学报,1985,27(1):84-93.
[4]刘慎谔,冯宗炜,赵大昌.关于中国植被区划的若干原则问题[J].植物学报,1959,8(2):87-105.
[5]吴征镒.中国种子植物属的分区类型[J].云南植物研究,1991,增刊IV:1-139.
[6]黄荣富.垫状植物在可可西里植物区系与植被中的意义[C].科学院西北高原生物研究所,1994:12.
[7]张久华.羌塘国家自然保护区植被覆盖与土地荒漠化研究[D].成都:成都理工大学,2012.
[8]王玺婧.西藏羌塘自然保护区生物多样性非使用价值评估[D].北京:北京林业大学,2012.
[9]廖文波,张宏达,仲铭锦.广东亚热带植物区系表征科的区系地理学分析[J].生态科学,1994,(1):47-55.
[10]王荷生.植物区系地理[M].北京:科学出版社,1992:1-40.
[11]王荷生.华北植物区系地理[M].北京:科学出版社,1992:1-229.
[12]许金凤,马红梅,张建全,等.兰州南北两山种子植物区系[J].草业科学,2016,33(3):408-423.
[13]李锡文.中国种子植物区系统计与分析[J].云南植物研究,1996,18(4):363-384.
[14]吴征镒,周浙昆,李德铢,等.世界种子植物科的分布区类型系统[J].云南植物研究,2003,25(3):245-257.
[15]吴征镒.世界种子植物科的分布区类型系统的修订[J].云南植物研究,2003,25(5):535-538.
[2]Ward F,k.&Hemsley W.B.A Sketch of the Geography and Botany of Tibet[J].Journ.Linn,Soc.Bot.,1935(50):239-365.
[3]郑度.西藏植物区系地理区域分异的探讨[J].植物学报,1985,27(1):84-93.
[4]刘慎谔,冯宗炜,赵大昌.关于中国植被区划的若干原则问题[J].植物学报,1959,8(2):87-105.
[5]吴征镒.中国种子植物属的分区类型[J].云南植物研究,1991,增刊IV:1-139.
[6]黄荣富.垫状植物在可可西里植物区系与植被中的意义[C].科学院西北高原生物研究所,1994:12.
[7]张久华.羌塘国家自然保护区植被覆盖与土地荒漠化研究[D].成都:成都理工大学,2012.
[8]王玺婧.西藏羌塘自然保护区生物多样性非使用价值评估[D].北京:北京林业大学,2012.
[9]廖文波,张宏达,仲铭锦.广东亚热带植物区系表征科的区系地理学分析[J].生态科学,1994,(1):47-55.
[10]王荷生.植物区系地理[M].北京:科学出版社,1992:1-40.
[11]王荷生.华北植物区系地理[M].北京:科学出版社,1992:1-229.
[12]许金凤,马红梅,张建全,等.兰州南北两山种子植物区系[J].草业科学,2016,33(3):408-423.
[13]李锡文.中国种子植物区系统计与分析[J].云南植物研究,1996,18(4):363-384.
[14]吴征镒,周浙昆,李德铢,等.世界种子植物科的分布区类型系统[J].云南植物研究,2003,25(3):245-257.
[15]吴征镒.世界种子植物科的分布区类型系统的修订[J].云南植物研究,2003,25(5):535-538.