生物量

The root biomass, stem biomass and total biomass of seedling in gap center plots were ratherish higher than those of seedling in gap middle plots, but the difference was not evident.

经过一个生长季后，林窗中心样地中幼苗的根生物量、茎生物量和总生物量均略高于林窗中部样地的幼苗，但差异并不显著。

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。

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。

Spinulosa gradually increased with the increase of water depth when the water depth was less than 2 meters, the biomass of V.

水深2 m以下，随着水深的增加，刺苦草的地上生物量和地下生物量逐渐增加；水深超过2 m后，生物量显著减少，刺苦草的有性繁殖受限。

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。

Based on the scope of aboveground biomass of two main types of steppe vegetation undegraded and degraded, we assessed steppe vegetation degradation rank with the unit of pixel, and compiled steppe degradation distribution map of the middle reach of Xilin River Basin.

以内蒙古锡林河流域中游为研究区，应用Landsat TM资料，结合地面生物量定位测定，建立草原地上生物量估产模型，应用Visual C++编程，估算了2000年7月中下旬锡林河流域中部草原地上生物量。

Along with forest succession, the percentage of C and N turnover through fine root to the root, soil and the belowground increases gradually and then decreases.

由高海拔到低海拔根系生物量逐渐增加，而细根的生物量则没有明显的变化规律，细根占根系总生物量的范围为11％～24％。

Results showed that the spatial distribution type significantly affected height of individuals, aboveground biomass, belowground biomass and total biomass of C.

结果表明，不同空间分布方式对刺穗藜个体的高度(P=0.026)、地上生物量(P=0.004)、地下生物量(P=0.049)以及总生物量(P=0.004)均具有显著影响。

Times higher than that of initial strain. Polysaccharides, such as barley flour, dextrin and soluble starch, were better carbon sources than monosaccharides and disaccharides, such as glucose and maltose, for cell growth of B subtilis ZJF-1A5 and β-glucanase production. Yeast extract was the best nitrogen source, the following was soybean flour.

糊精、大麦粉等多糖有利于B.subtilisZJF-1A5 β-葡聚糖酶的产生，葡萄糖、蔗糖等易利用性碳源不利于菌体生物量的积累和β-葡聚糖酶的产生，β-葡聚糖酶受分解代谢产物阻遏调节。B.subtilis ZJF-1A5 β-1，3-1，4-葡聚糖酶的产生与菌体生物量和菌体生长状态密切相关，提高发酵产酶水平的关键是提高菌体生物量和解除葡萄糖效应。

With the increase of establishment years, most of plant communities on the grasslands showed a "V" type change trend in their quantities, i.e., high-low-high, hut the forbs biomass had a "Λ" type change trend and the sedge biomass increased gradually. Soil nutrients presented a "V" type hut soil hulk density presented a "Λ" type change trend, bile soil pH presented a decreasing trend. Most of soil microbial physiological groups and microbial biomass carbon showed a "V" type change trend, phosphorus-dissolving bacteria showed a "Λ" type change trend, denitrifying bacteria decreased gradually, while cellulose-decomposing bacteria showed an increasing trend.

结果表明：随着人工草地建植年限的增加，植物群落的数量特征多呈高－低－高、杂类草生物量低－高－底、莎草生物量增加的趋势；土壤养分变化为高－低－高、容重为低－高－底、pH呈下降趋势；土壤中多数微生物的数量及微生物生物量碳含量的变化为高－低－高，纤维素分解菌数量逐渐升高，而反硝化菌数量逐年下降，溶磷菌数量呈低－高－低的动态变化。

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。