查询词典 biomass

The microbial biomass carbon is linearly correlated with carbon availability in the Calamagrostis angustifolia soil.

微生物生物量碳与碳的可利用指数也存在较为显著的正相关关系。

The promoting effect of elevated CO2 on biomass and R/S of Calamagrostis angustifolia was only significant in treatments higher in nitrogen supply, while it was not in CK.

在HN水平下，大气CO2浓度升高使小叶章生物量和根冠比明显增加，在NN条件下促进作用则不显著。

A field experiment using OTC(open-top chamber)was carried out with treatments different in nitrogen supply0, 5, 15 gm^(-2 and CO2 level 350 vs 700 μmolmol^(-1 to investigate effects of the treatments on biomass and root/shoot ratio of Calamagrostis angustifolia.

利用开顶箱薰气室(open-top chamber)试验装置，研究了不施氮、施常氮MN， 5gm^(-2和施高氮HN， 15gm^(-23个氮素水平下大气CO2浓度升高对小叶章生物量和根冠比的影响。

The principle component 1 in Carex lasiocarpa could explain the species relative density of 88% and the aboveground biomass of 84%.

毛果苔草湿地中主成分1能够解释88％的物种相对密度和84％的地上生物量；小叶章湿地中主成分1对相对密度和地上生物量的解释量则分别为75％和58％。

The study of the photosynthetic and growth indices versus stress intensities shows that Caryopteris mongholica Bunge strengthens its adaptation to water stress with the reduction of net photosynthetic rate, transpiration rate and Maximum quantum efficiency of PSⅡphotochemistry, and the weakening of biomass accumulation and growth rate that are accompanied with a better water use efficiency and an increased Root/Shoot Ratio, and that the provenance of Inner Mongolia TUZUOQI is of the best physiological indices in water deficit.

通过测定不同水分梯度、不同种源的光合生理与生长指标表明：蒙古莸通过降低光合效率、蒸腾速率和最大光化学效率，减缓生长和生物量积累，提高水分利用效率和根冠比来适应水分胁迫。在水分胁迫下，蒙古莸光合能力的下降是引起其生长减缓的重要原因。从蒙古莸光合能力与生长综合考虑，内蒙古土默特左旗种源是在水分胁迫下表现最优良的种源。

By focusing on the coupling of water and fertilizer and using all-purpose regression design with four factors and five levels, and based on pot experiments and quantitative analysis, the coupling effect of water and fertilizer on Casuarina equsetifolia biomass was studied in order to solve the inconsistency problem of water and fertilizer supply on coastal sandy land.

针对滨海沙地因水肥不协调而形成大面积低效林分的问题，以水肥耦合为中心，以1年生木麻黄幼苗为研究对象，采用四因子五水平二次通用旋转组合设计，利用盆栽试验和定量分析的方法，研究探讨了在不同水肥条件下，水、N、P、K四因子对木麻黄生物量的影响。

In particular, Xanthium sibiricum and Celosia argentea have great effect on the biomass of plots after 4 months of drought stress.

研究同时发现干旱胁迫条件下，在14：00时一天中大气温度最高时段，物种丰富度越高的样地，其群落内相对湿度越高，温度越低。

With static experiments, the authors investigated the biomass change of Ceratophyllum demersum and Microcystis aeruginosa cultured in Hoagland's solution with different concentration levels of Microcystis aeruginosa.

通过静态模拟实验，比较了单独培养和共生培养下，不同初始藻密度时金鱼藻生物量和铜绿微囊藻密度的变化。

The results showed that during the 45 days experimental time the fresh weigh of Myriophyllum spicatum L, Hydrilla verticillata L and Cerato-phyllum demersum L were 0.92 g, 0.27 g, 1.11 g and 0.56 g, 0.41 g, 0.87 g in medium nutritional condition TN 1.86 mgL^(-1; TP0.087 mgL^(-1) and eutrophic condition TN 2.47 mgL^(-1; TP0.16 mgL^(-1), respectively. The largest single plant biomass of Myrio-phyllum spicatum L and Ceratophyllum demersum L in in middle nutritional condition were over 39% and 22% higher than those in eutrophicated condition, but that of Hydrilla verticillata L was less than 51%, which shown that Myriophyllum spicatum L and Ceratophyllum demersum L grow better than Hydrilla verticillata L in middle nutritional condition.

研究结果表明，在45 d的培养过程中，狐尾藻、轮叶黑藻和金鱼藻在中营养TN1.86 mgL^(-1； TP0.087 mgL^(-1)和富营养TN2.47 mgL^(-1； TP0.16 mgL^(-1)水平下的单株最大生物量分别是0.92、0.27、1.11、0.56、0.41和0.87 g，狐尾藻和金鱼藻在中营养水平下单株最大生物量分别较富营养水平下高出39%和22%，而黑藻在中营养水平下单株最大生物量较富营养水平下低了51%，表明狐尾藻和金鱼藻在中营养水平下的生长较黑藻好。

Effects of boron on the growth, nutrition quality and nitrogen-fixing ability were studied in Chamaecrista rotundifolia. Compared with the control, the branch numbers, root and shoot biomass of C.

设立田间小区试验，探讨在红壤中施用不同浓度的硼肥对圆叶决明植株生长、牧草品质和根瘤固氮能力的影响。

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。