高寒地区不同退化程度草地群落结构特征研究  

Study on Different Degraded Degrees Grassland Community Structure Characteristics of the Alpine Area

作　　者：陈乐乐[1,2] 施建军[2] 王彦龙[2] 马玉寿[2] 董全民[2] 侯宪宽 

机构地区：[1]青海大学,青海西宁810016 [2]青海省畜牧兽医科学院,青海西宁810016

出　　处：《草地学报》2016年第1期210-213,共4页Acta Agrestia Sinica

基　　金：国家科技支撑项目(2011BAC09B06-1);青海省科技支撑项目(2013-N-146);公益性行业(农业)科研专项(201203006)资助

摘　　要：在玉树市巴塘乡铁力角村冬春草地上对不同退化程度高寒草地植物群落、地上及地下生物量进行调查分析。结果表明,该地区草地植被由16科33属42种植物组成;随着草地退化程度的加剧,草地优势种由丝颖针茅(Stipa capillacea)向铁棒锤(Aconitum pendulum)过渡;草地总盖度、总生物量及优良牧草生物量均呈降低趋势;杂类草生物量显著增加(P<0.05);草地质量和生产力明显降低。Different degraded degrees alpine grassland plant community,above and below ground biomass were surveyed on the winter and spring degradation grassland in Tie Li-jiao village of Ba tang town Yu shu city.The results showed that this area was consisted by 42 species and 33 genera and 16 families plants;the grassland dominant specie changed from Stipa capillacea transition to Aconitum pendulum with increasing the degree of grassland degradation;total coverage,total biomass and high quality forage of grassland all showed a decreasing trend;biomass of miscellaneous grass increased significantly（P0.05）;and grassland quality and productivity significantly decreased.

关 键 词：高寒草地 植物群落 优势种 草地质量 

分 类 号：Q948.158[生物学—植物学]