查询词典 biomass

Rhizomatic biomass percent was highest under -5 cm water level, and after the change of the water regimes through the growing season, C. lasiocarpa undergoing -5 cm water level treatment at beginning or the later growing season, had higher biomass percent.

cm水位条件下，毛苔草根茎生物量占总生物量的比重最大；而且水文情势改变后，无论苗期还是生长季末期，仍以经历－5 cm水位处理的毛苔草根茎生物量比重较大。

Ordosica biomass and density was dependant on that of soil moisture, and in particular, there existed a significant positive correlation between the biomass and the moisture, indicating that on semifixed dune, soil moisture played a decisive role in the spatial heterogeneity of plant population.

由于沙丘地形对降水量的再分配在土壤湿度分布中的作用，土壤湿度和油蒿种群空间异质性相互作用的结果为地形的缀块性→土壤湿度分布的缀块性→油蒿种群分布的缀块性→油蒿生物量和密度的缀块性。

It shows that where Sonneratia apetala is planted in the tidal flat with Spartina alterniflora and its biomass is lower than the biomass of Spartina alterniflo...

在人工付出劳动相同的情况下(即人工割除互花米草的频度)，初始生物量大的无瓣海桑超过互花米草生物量所需的时间短于初始生物量小的无瓣海桑。

The results show that the habitats is a distinct effect on the morphological factors and the biomass of Spartina alterniflora Among the three habitats, the individual number and biomass of the species in clay habitat are the highest.

该文以分布于广西合浦山口红树林保护区的互花米草为研究对象，研究了不同的生境条件对其形态因子和生物量的影响。

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。

From the appearance characteristics of plant community,the synusia structure of plant community in Minqin desert grassland was composed of simple herbaceous and shrub layer,and individual plants was dwarf,small crown,low biomass,with an average altitude of 0.60 m and lower than 1.00 m~2 crown;except for Nitraria,Zygophyllaceae and Caragana,the fresh weight of per plant biomass of most plant were below 1000 g / individual.

8从植物群落的外貌特征来看，民勤荒漠草地各植物群落的层片结构是由简单的灌木层和草本层组成，且植物个体矮，冠幅小，生物量低，平均高度在0.60m以下，冠幅在1.00m~2以下；生物量除了白刺、泡泡刺和柠条外，大多数植物的单株生物量鲜重都在1000 g/株以下。

3Started with the ecosystem structure and function, constructed the index system of grassland ecosystem health evaluation. And selected eight quantitative and two qualitative indices, including the production, community coverage, litter biomass, excellent forage proportion, forage crude protein, soil compaction, soil organic matter, soil microbial biomass nitrogen and dominance species and life form synusia composition, as the sensitive indices of typical steppe health evaluation.

3从生态系统结构与功能入手，构建出典型草原健康评价的指标体系，并进一步筛选出典型草原健康评价的敏感指标包括草地产草量、群落盖度、地表凋落物、优良牧草比例、牧草粗蛋白、土壤紧实度、土壤有机质、土壤微生物量氮8项定量指标以及优势物种组成和生活型层片构成2项定性指标作为典型草原健康评价指标。

Seedlings of Trapa pseudoincisan, a typical floating-leaved macrophyte accumulated more biomass after exposing 30 days in high CO,, and the biomass advantage was due to dry weight increase in root, stem, leaf and petiole.

高co：浓度中生长30天的菱幼苗总生物量明显增加，这是根、茎、叶和叶柄干重均增加的结果。

Methods Dynamic changes of biomass, residual glucose concentration and pH in submerged culture was investigated with Tricholoma matsutake stain, which was isolated and identified by RAPD-PCR method. By comparing the effect of different inoculum ages on biomass, the optimum inoculum age was determined.

方法经RAPD-PCR 分析确认松茸菌丝体菌种，研究松茸液体深层发酵过程中菌丝体的生物量、残糖浓度和pH随时间变化的过程；比较不同种龄对菌丝体积累的影响，确立最佳接种种龄；比较不同初始糖浓度发酵过程的结果，运用中间补糖的方法，确定最优的补糖时间。

The enzyme production paralleled with biomass in early 8 days, subsequently activities declined slightly though its biomass continued upward. Tyrosine and tryptone at the concentration of 4g/L improved the enzyme production, reaching 2.49 and 2.0IU/mL respectively.

漆酶的产生与生物量在培养8d内呈现平行关系，但随后酶量并不随之而继续上升。4g/L的酪氨酸和胰蛋白胨有利于酶的产生，分别可使酶活力最高增加到2.49IU/mL和2.0IU/mL。

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。