It suggested that the highest effieiency of above ground biomass was in the initial stage of growth. 在生长季节后期，绝对和相对增长率均出现负值，这表明地上部生物量的增长效率以生长初期为最高。
For year round unfenced grazing land,the total above ground biomass,overall vegetation coverage,and average plant height were all lower than for fenced land. 在全年放牧草地中,地上总生物量、植被总覆盖度、植被平均高度等指标均低于围栏内的草地。
The relationship between plantation productivity and stand density as well as the distribution law ofthe above ground biomass tbr Pinus sylvestris var. mongolica were preliminarily analyzed. 根据生物量调查资料，对樟子松人工林生物生产力与密度的关系以及樟子松各器官生物量的分配规律做了初步分析。
In this research,we have made a forecasting to the above ground biomass of the Ley- mus chinensis grassland in the Hulunbeiermeng of Inner Mongolian by using the LANDSAT MSS image material. 本研究应用 LANDSAT MSS 影像资料对内蒙古呼伦贝尔盟羊草草原的地上生物量进行了预报.
Observing it’s growing state,above ground biomass and below ground biomass,the number of internode and the length of stem,morphological response and the distribution on shorelines. 观测芦苇的生长状况，包括芦苇的地上和地下生物量，芦苇的根茎长度和数量，芦苇秸秆的节数和节间长度，以及芦苇植株的生态适宜性变异和地理分布；