The dominant species of relative biomass index were Loligo chinensis and Acropoma japonicum, respectively. 相对生物量(RB)指数和相对密度的优势种分别为中国枪乌贼和发光鲷。
Root tolerance index and shoot relative biomass of 9311 were much higher than the other genotypes. 汞胁迫下,9311根系耐性系数和冠相对生物量(RB)比其它基因型水稻都高。
The selective ingestion of herbage had a positive correlation with herbage relative biomass and height, but it had no obvious correlation with density. 放牧绵羊的食物组成与各种植物在群落中的相对生物量(RB)和高度呈极显著的正相关,而与密度相关性不大。
In this paper, the biomass increment and the relative biomass accumulation and distribution for Populus tomentosa and its hybrides clones were studied systematically by relative growth method. 本文采用相对生长法系统地研究了毛白杨及其杂种无性系生物量增长及其各器官相对生物量(RB)的积累和分配规律;
The increase in species, variation in community structure and obvious recovery in relative biomass index and relative biotic density index of necton indicated that ecological environment of Yun-dang lake had been improved greatly by further comprehensive control and management since 1993. 游泳生物种类的增加和群落结构的变化以及相对生物量(RB)指数和相对生物密度指数的明显恢复,表明筼筜湖经过1993年以来的进一步综合治理,生态环境的改善是显著的。