摘要
对地处农牧交错区典型地段的内蒙古多伦县蔡木山自然保护区植物属、种的区系特征进行了统计并与相临地区进行的对比分析 ,结果表明 :植物种类的多样性较高 ,本保护区范围内现共登记有维管植物 77科 2 5 6属 5 0 2种 .植物属的分布型特征表现出本地区植物区系的温带性质 ,在本保护区 2 5 6属植物中 ,北温带分布属为 82个 ,占总属数的 32 % ,包括北温带与南温带间断分布 ,共计 1 1 1属 ,占总属数的 4 4% .区系地理成分较临近地区复杂且具有过渡性 .保护区植物生活型特征表明本区多年生草本植物占绝对优势 ,表现出草原植物群落种类组成的特征 ,但由于本区有沙带的特殊景观 ,乔木和灌木种类较典型草原多 .
An characteristics of compact of florstic elements were studies in DUO LUEN CAI MU mountain reservation area in agriculture animal husbandry ecotone. Based on the statistics and analysis at generaic and specific levels ,and the comparison with the relation of the sourrounging fliras ,the main results and conclusions obtained are as follows:The species diversity is relatively high .The 502 species of vascular plants, belong to 77 family and 256 genera,have been recorded nom in DUO LUEN CAI MU mountain reservation area. The temperate zone of florstic elements were represented by characteristics of areal types of genera. within 256 genera plants ,82 genera beloning to north temperate ,proportion is 32%,inclusion South temperate disjucted total have 111generate,proportion 44%.The florstic diversity were complexity and passageway then near sorrounding region. The species of steppe fiorstic was main florstic elements.The characteristics of Life form was character of compact of steppe which have dominance of perennial herb. There have more arbor,shrub then steppe. The mesophytes and over mesophytes were main plant water ecological types in CAI MU MOUNTAIN protection area.
出处
《内蒙古大学学报（自然科学版）》
CAS
CSCD
北大核心
2001年第5期575-579,共5页
Journal of Inner Mongolia University：Natural Science Edition
基金
国家自然科学基金项目 ( 39760 0 2 4 )
中国科学院知识创新重大项目 ( KSCX1 -0 8)资助
