摘要
荒漠一年生植物生长速度快、繁殖力强,具有重要的饲用、药用和生态价值。通过文献资料与标本采集信息的考证和野外调查,明确了新疆荒漠一年生植物的物种数量、分布特征及资源类型。结果表明:新疆荒漠一年生植物共有236种,隶属于20科109属,其中藜科为优势科,猪毛菜属为优势属。科可划分为4个分布区类型,以世界广布科为主,占总科数的65%;属可划分为9个分布区类型、8个变型,以温带分布属为主,占总属数的77.98%。在主要荒漠类型中,沙质、砾质和盐质荒漠中一年生植物分别有126种、96种和51种,分别占总种数的53.38%、40.67%和21.61%。在这些物种中,具有饲用和药用价值的资源分别有51种和55种,其中藜科和菊科植物占优势;具有重要生态价值的冬季一年生植物有64种,主要集中在十字花科、禾本科、菊科和紫草科。
Desert annual plants grow rapidly and have a large seed output that has important feeding,medicinal,and ecological value.By checking documentaries,the information from herbarium collections,and field investiga-tion results,this study aimed to define the number of species,distribution characteristics,and resource types of des-ert annual plants in Xinjiang.Results showed that Xinjiang has 236 species of desert annuals belonging to 109 gen-era in 20 families,among which Chenopodiaceae is the dominant family and Salsola is the dominant genera.Fami-lies could be divided into four areal types,with the cosmopolitan type comprising 65%of all families and occupy-ing the dominant status in the flora.The genera could be divided into nine areal types and eight subtypes,with domi-nant temperate genera comprising 77.98%of all genera.Among the main desert types,126,96,and 51 species of desert annual plants grow in sandy,gravel,and saline conditions,representing 53.38%,40.67%,and 21.61%of all species,respectively.Among these species,51 and 55 species of desert annual plants can be used as forage and med-icine,respectively,among which species in Chenopodiaceae and Asteraceae were dominant.There were 64 winter annual plants with important ecological value,mainly in Brassicaceae,Poaceae,Asteraceae,and Boraginaceae.
作者
杜佳倩
刘彤
王寒月
赵文轩
王杰
徐文斌
DU Jiaqian;LIU Tong;WANG Hanyue;ZHAO Wenxuan;WANG Jie;XU Wenbin(College of Life Sciences,Shihezi University,Shihezi 832003,Xingjiang,China)
出处
《干旱区研究》
CSCD
北大核心
2022年第1期185-209,共25页
Arid Zone Research
基金
国家自然科学基金项目(31770461)。
关键词
荒漠
一年生植物
区系地理
资源利用
新疆
desert
annual plants
floristic geography
resource utilization
Xinjiang
