CAJ | 학술논문

对黄河三角洲外来入侵物种米草的生物学、生态学特性进行了观测和研究.结果表明:米草茎秆坚韧,不易倒伏;根状茎表皮薄壁组织内有许多气腔,与淹水条件下生活的习性相适应;米草叶背面有盐腺,便于泌盐和排盐;米草种子失水即失去萌发力,无性繁殖力强,是其扩散的生物学基础;米草的广盐性、耐淹性、高适应性、强繁殖扩散能力、强竞争入侵能力、生态幅宽,是其入侵和爆发的生态学基础.
대황하삼각주외래입침물충미초적생물학、생태학특성진행료관측화연구.결과표명:미초경간견인,불역도복;근상경표피박벽조직내유허다기강,여엄수조건하생활적습성상괄응;미초협배면유염선,편우비염화배염;미초충자실수즉실거맹발력,무성번식력강,시기확산적생물학기출;미초적엄염성、내엄성、고괄응성、강번식확산능력、강경쟁입침능력、생태폭관,시기입침화폭발적생태학기출.
In Yellow River Delta,the biological and ecological characteristics of an invasive alien spe-cies spartina were investigated. The results showed that the stem of spartina is tenacious and many gas chambers are in epidermal parencbyma of its rhizome. These characteristics ensure that it can live in flooding conditions. Salt gland that is under surface of its leaf and can secret and discharge salt. Water loss can make seed fail to germination. Its capability of asexual reproduction is strong and that is the bio-logical base of its spreading. Its euryhalinity, submergence tolerance, high adaptability and reproductive capacity,strong high invasion capacity and great ecological amplitude are the ecological base of its inva-sion and development.