生物量

Most herbivores feed in secondary forests because pioneer species in secondary forests do have little or no mechanical or chemical protection against herbivores and many early and late seral tree species in secondary forests produce edible fruits in large quantities. Environment and fire have some effects on secondary forest succession. In early succession, relatively more biomass is allocated to resource acquiring tissues and in later stages more is allocated towards structural materials.

大多数食草动物喜欢在次生林中取食，因为次生林中的先锋树种很少或没有机械和化学保护和林内许多树种产生大量可食用的果实；环境和火对次生林演替有一定影响；在早期的演替过程中，更多的生物量分配到资源需求旺盛的组织，在演替晚期阶段，更多的生物量则分配到结构组织中。

The results show that the bioaccumulation coefficience in the aboveground of Scnecio vulgaris、Sonchus brachyotus、Znula Britannica、Artemisia scoparia、Artemisia annua、Peucedamum terebinthaceum and Polygonum bungeanum are more l respectively,and the concentration of Cd in the aboveground of plant is more than that in root,which possessed basic characteristics of hype...

结果表明：欧洲千里光、巨荬菜、欧亚旋覆花、猪毛蒿、黄花蒿、石防风和柳叶刺蓼 7种植物对 Cd的富集系数最大，且地上部 Cd的含量大于根部 Cd的含量，具备了重金属超富集植物的基本特征；植物地上部重金属含量与植物上部生物量的大小无关；以杂草为研究对象，有可能筛选出地上部重金属富集量大并且地上部生物量也高的超富集植物。

There was not significant change in 0~10 cm belowground biomass except in the Leymus chinensis community and grazing reduced 0~30 cm belowground biomass except in Stipa grandis.

除羊草群落外，0~10 cm地下生物量随放牧强度的变化不显著；除大针茅群落外，放牧显著降低0~30 cm地下生物量。

However, species had restored by 2001, and the biomass of Vallisneria spp.

和黑藻的生物量已超过干扰前的水平，但其它物种的生物量仍较低，尚处于恢复的初始阶段。

Cage culture of the mandarin fish also decreased the dissolved oxygen concentrations, the species number and biomass of the zoobenthos around the cage area, but had no significant effects on the water temperature, pH, transparency, species composition of phytoplankton and zoobenthos, and the species composition and biomass of rotifers, cladecerans and copepods.

网箱养鳜同时减少了网箱周围的溶氧、底栖动物的种类数和生物量，但对水温、pH值、透明度、浮游植物种类、原生动物种类以及轮虫、枝角类和桡足类的种类和生物量影响较小。

Grasslands play a significant role in terrestrial ecosystem carbon cycle due to large biomass stored belowground.

温带草地大部分生物量分布在地下，地下生物量在草地生态系统碳循环中起着重要作用。

Colligating above results,conclusion could be made that mutant lines of N1,N3 and N5 had advantages on their biomasses and photosynthetic rates.

综合生物量与光合能力的检测结果，N1、N3和N5突变系在生物量与光合能力方面相对有较高的优势。

With the increasing of NO3- concentration, the biomass, root absorbability and root absorbing area declined under NaNO3 treatment. The biomass was gradually increased with NO3- concentration increasing under Ca(NO3)2 and KNO3 treatments, while NO3- concentration excessed 98 mmol·L-1, the fresh weight of cucumber seedlings was gradually decreased.

NaNO3处理条件下，随着NO3-浓度增加，黄瓜幼苗生物量降低、根系吸收能力及吸收面积下降；而低浓度Ca(NO3)2及KNO3处理下，黄瓜幼苗生物量随着NO3-浓度增加而增加，当大于98 mmol·L-1时，黄瓜幼苗鲜重逐渐降低。

The accumulation of biomass was positively correlated with initial reducing sugar concentration of the culture media The biomass ceased to increase after 16h of culture in liquidized WWWSI, but it remained vigorous growth up to 24h in saccharificated WWWSI.

生物量的积累与基质中还原糖浓度呈正相关，液化废水中培养16h后，生物量不再有明显的上升，液化再糖化的废水中则一直旺盛生长至24h，对此进行动力学分析，构建了可较好拟合白地霉在糖化的小麦淀粉废水中生长过程的动力学模型。

The total biomass of ephemeral macroalgae differed considerably among different types of substrata.

试验结果表明不同类型底质上的一年藻类的总生物量变化显著；在固定底质上生长的一年生藻类的生物量显著的高于附着于大型多年生藻类上的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。