摘要
以乌拉特荒漠植被为研究对象,通过查阅文献资料、野外调查、植物标本鉴定,依照植物生态学知识,运用统计学知识对乌拉特荒漠植被进行分析,了解乌拉特地区的植被组成,研究乌拉特不同群落对短花针茅草本生物量的影响。结果显示:①乌拉特地区有野生灌木植物51种,隶属于11科,29属;野生草本植物131种,隶属于28科,79属。②当群落中没有灌木出现时,草本植物的根系就不需要太深入土壤汲取水分和养分。③同一地区的不同群落草本层片生物量随群落中的灌木生物量增加而减少,随灌木高度增加而减少,随灌木盖度增加而减少。研究表明,乌拉特地区植物种类较少,以旱生、超旱生植物为主,植被生存环境差,灌木对草本植物生物量影响显著。
Taking Urat desert vegetation as the research object,through consulting literature,field investigation,plant specimen identification,according to the knowledge of plant ecology and using statistical knowledge,this paper analyzes the Urat desert vegetation,understands the vegetation composition in Urat region,and studies the impact of different communities in Urat on the herbaceous biomass of Stipa breviflora.The results showed that:①there were 51 species of wild shrubs plants in Ulat region,belonging to 11 families and 29 genera;there were 131 species of wild herbs,belonging to 79 genera and 28 families.②When there were no shrubs present in the community,the roots of herbaceous plants do not need to go deep into the soil to absorb water and nutrients.③The herbaceous layer biomass of different communities in the same area decreased with the increase of shrub biomass,with the increase of shrub height and with the increase of shrub coverage.The results showed that there were few plant species in Urat region,mainly xerophytes and super-xerophytes,the vegetation living environment was poor,and shrubs had a significant impact on the biomass of herbaceous plants.
作者
贾珂慧
蓝登明
崔爱露
JIA Ke-hui;LAN Deng-ming;CUI Ai-lu(College of Desert Control Science and Engineering,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010010)
出处
《安徽农业科学》
CAS
2021年第21期82-84,90,共4页
Journal of Anhui Agricultural Sciences
基金
国家科技部基础资源调查专项(2017FY100204)。
关键词
荒漠植被
生物量
群落组成
Desert vegetation
Biomass
Community composition
