生物量

The main aim of the present study was to address: 1 the photosynthetic characteristics and the biomass allocation traits of spring ephemerals and 2 the relationship between these traits and unique growth pattern of these spring ephemerals. Methods in vim photosynthetic traits of 16 spring ephemerals at their growth stages were measured by an open gas-exchange measurement system (Li-6400) and biomass allocation patterns were measured in seven species.

该文运用Li-6400开放式气体交换光合作用测定系统，对分布于准噶尔荒漠的16种早春短命植物生长盛期的净光合速率P(下标 n、蒸腾速率T(下标 r、水分利用效率等特征进行了测定，并对其中7种植物与生长相关的生物量分配特征进行了分析。

The diversity of epiphytes, biomass and ecosystem-level function have received more attention in the world. In the present paper, the main investigating methods of canopy research are summarized. Meanwhile, based on our own observations, the application advantage and disadvantage of each method, and newly progress in this field were discussed.

文中以附生植物多样性、生物量和附生植物群落的生态功能等为基础，结合作者已开展的工作，综述了林冠附生植物的观测调查及取样方法，并且分析了不同方法的特点及在林冠研究中的应用，对进一步深入研究附生植物提出了一些建议。

Biodiversity and biomass of epiphytes and their functional roles at the ecosystem-level are becoming a hot topic of recent study.

有关林冠附生植物多样性、生物量及其生态学效应已成为近年来国际上新兴研究领域―&林冠学&的研究热点之一。

Changes of Plant Diversity, Biomass, and Soil Nutrients in Cutting Slash of Artificial sand-fixation Forest after Fallowing and Natural Restoration

固沙林采伐迹地撂荒后自然恢复的植物多样性、生物量与土壤养分含量的变化，吴祥云；卢慧；王晓娇-66文免费论文库，大学生论文库

The technology needed to effectively commercialize biomass as an energy feedstock is still in its infancy.

有效地将生物量商业化为一种能源原料所需要的技术仍然处于初级阶段。

Through CTV, we also are assessing a variety of biomass sources to identify potential feedstocks that could be available on a commercial scale.

通过CTV，我们估计有大量的生物量资源识别潜在的给料，而这也使规模的使用它成为可能。

The macrobenthos are an important constituent in the estuarine and tidal flat ecosystem that play a key role in the cycling of nutrient in the ecosystem.

因此，氨氮的再生对维持长江河口滨岸潮滩生态系统的高生产力和高生物量具有重要的生态意义。

The biomass of reed community in bank of yellow river was greater than that in flood control dam, while the later is greater than that in shoal.

不同生境中芦苇群落的生物量表现为：生长在黄河河道的大于生长在防洪坝以内大于生长在滩涂上的。

Vegetative agriculture is one of agricultural production systems with the main aim of harvesting vegetative organs or tissues of plant such as herbages of forage crops, green fodders, vegetables and ornamental plants.

发展营养体农业可以发挥植物生长的各方面优势，充分利用植物的逻辑斯蒂生长规律，对光照强度的要求不高，对气候和土地资源的时间匹配性要求不严，能够减少漏光现象，提高光能利用率，容易避开主要病虫的危害，其生物量和经济产量较高，营养价值好，生产潜力大。

Mowing reduces the above ground biomass and density of community, reduces fine grass percentage in the community, increases forbs and leads habitat worsen.

割草使群落地上生物量和密度下降，优良牧草在群落中的比例减少，杂类草增加，并引起生境条件恶化。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。