云南兰坪箐花甸亚高山草甸动物粪便可萌发种子库组成研究  

Composition of Germinable Seed Bank in Animal Dung from Subalpine Meadows of Qinghuadian in Lanping of Yunnan Province

作　　者：杨淑娇 姜健发 张正梅 杨月圆[1] 王有兵[1] YANG Shujiao;JIANG Jianfa;ZHANG Zhengmei;YANG Yueyuan;WANG Youbing(Dali Branch of Yunnan Institute of Forest Inventory and Planning,Dali 671000,Yunnan Province,China;Lushui Forestry and Grassland Bureau,Lushui 673200,Yunnan Province,China)

机构地区：[1]云南省林业调查规划院大理分院,云南大理671000 [2]泸水市林业和草原局,云南泸水673200

出　　处：《内蒙古林业调查设计》2024年第3期64-68,共5页Inner Mongolia Forestry Investigation and Design

基　　金：云南兰坪箐花甸国家湿地公园植物繁殖库特征研究(dlfy2023006);云南省科技厅、云南大学“双一流”建设联合重大项目(云南植被志研编202101BC070002)。

摘　　要：通过探索滇西地区亚高山草甸动物粪便中可萌发植物种子组成特征,为亚高山草甸植物多样性变化、生态修复提供依据。以牦牛、马、绵羊及西南兔4种动物粪便为研究对象,通过萌发法获取4种动物粪便中可萌发植物种子的数量及种类。结果表明:①4种动物粪便单位质量中可萌发植物种子数量达极显著差异水平。秋末采集的牦牛粪便中可萌发种子数量及种类均最多,平均达到2.74粒/g,种数达22种;秋末采集的马粪便中可萌发种子数量及种类次之,平均达到1.94粒/g,种数达15种;绵羊及西南兔粪便各检测到3种植物。②4种动物粪便共检测到可萌发植物种类30种,隶属于18科30属,车前科(13.3%)、唇形科(13.3%)和禾本科(10.0%)相对较多,总体上以杂类草为主。③4种动物粪便种子数量最多的物种分别为牦牛(广序剪股颖39.8%)、马(广序剪股颖32.8%)、绵羊(早熟禾77.8%)和西南兔(广序剪股颖57.1%),从种子数量上来看,以禾草类居多。This study explores the characteristics of the germinable plant seed composition in animal dung from subalpine meadows in Western Yunnan,providing a basis for the changes in plant diversity and ecological restoration in subalpine meadows.Four types of animal dung,including yaks,horses,sheep,and southwestern hares,were studied to determine the quantity and species of germinable plant seeds through germination methods.The results show:There is a highly significant difference in the number of germinable plant seeds per unit mass of dung among the four types of animal dung.The dung collected in late autumn from yaks had the highest number and variety of germinable seeds,averaging 2.74 seeds/g,with 22 species;the dung collected in late autumn from horses had the next highest number and variety of germinable seeds,averaging 1.94 seeds/g,with 15 species;sheep and southwestern hare dung each contained 3 plant species.A total of 30 germinable plant species were detected in the dung of the four animals,belonging to 18 families and 30 genera,with Plantaginaceae(13.3%),Lamiaceae(13.3%),and Poaceae(10.0%)being relatively more abundant,and the overall composition is dominated by miscellaneous grasses.The most abundant species in the seeds of the four types of animal dung were for yaks(Agrostis clivicola 39.8%),horses(Agrostis clivicola 32.8%),sheep(Poa annua 77.8%),and southwestern hares(Agrostis clivicola 57.1%),with the majority of the seeds being grasses.

关 键 词：亚高山草甸 动物 粪便 种子 兰坪箐花甸 

分 类 号：S812[农业科学—草业科学]