生物量

The average fresh weight was 35.22 g per plant, with the above-water part counted 77% and the under-water part 23%. The waterborne part played a key role in the biomass structure. The directly absorbing contents of N and P were 13.05-33.14 kg/(hm2·a) and ?5.62-6.67 kg/(hm2·a), respectively.

研究成果如下：水芹植株的平均鲜量35.22 g，其中水上部分占77%，水下部分占23%，生物量分布主要集中在水上部分；其对N，P的直接吸收分别可以达到13.05～33.14 kg/(hm2·a)和5.62～6.67 kg/(hm2·a)。

Moreover, the aboveground biomass, underground biomass and total biomass of Elymus nutans Grise and Poa crymophila Keng descended with altitudes ascended, and that the biomass of the former species was higher than the latter.

垂穗披碱草和冷地早熟禾地上、地下生物量沿海拔高度的升高而降低，且前者生物量大于后者；两者的植株高度和根系长度随海拔不同而不同，都在3400m处最大，前者大于后者。

Fruticosa grown in clay sandy soil and clay soil was best, and they were significantly higher than that in other soils from 12th d in the test. The biomass of hypocotyls in 4 soils was similar, and that in forest soil was higher and its dry weight accumulated in hillside soil was more.

沙土和黏土中紫穗槐根的生物量最好，并在第12天的时候开始就明显高于其他土壤。4种土壤中的下胚轴生物量都差不多，以森林土的较高，而山坡土的积累的干重较多。

The spatial semi-variogram values of above-ground biomass of perennial herbs and Mesophytes, following the increase of spatial distances, showed decreasing trends when semi-variogram values exceeding the effective ranges. Howeve,semi-variogram values of above-ground biomass of other functional groups, following the increase of spatial distances, showed a trend of increasing spatial variability, but semi-variogram values were at unchanged value when exceeding the effective ranges.

多年生草本和中生植物生物量变异函数值，在出现一个相对稳定的基台值后，开始下降，并随着空间距离的增加，空间变异性有减弱的趋势，而其它各功能群生物量表现出随着距离的增大空间变异性增强的趋势，但超过其变程后半方差函数值也基本稳定在一个极限值附近。

There was positively lineal relationship between the overground biomass and the underground biomass. The ratios between root and stem was among from 0.2 to 0.8 with the different soil types and soil moistures.

苗木地上部分生物量与地下部分生物量存在显著的线性关系，不同土壤类型和水分状况苗木的根茎比差异较大，变化范围在0.2～0.8之间。

The definite small leaf oak bough moisture content distribution rulemay for determine its bough biomass to provide the theory basis,greatly reduces the biomass investigation work load.

确定小叶青冈树干含水率分布规律可以为测定其树干生物量提供理论依据，大大减小生物量调查工作量。

The effect of lead treatment on the soil microbial biomass carbon, microbial biomass nitrogen, micro-bial activities, rice physiological indices and rice biomass in the interactive system of soil-rice-lead and microbe, were studied by a greenhouse pot experiment. Lead was applied at six different levels in two different paddy soils, namely 0, 100, 300, 500, 700 and 900 mgkg^(-1) soil.

盆栽试验研究了土壤－水稻－铅－微生物相互作用的体系中，外源铅不同处理水平CK、100、300、500、700、900mgkg^(-1对两种水稻土壤微生物生物量碳、氮，微生物活性，水稻生理指标及生物量的影响。

For example, the micro biomasses are higher and change fiercely in the ridge or furrow soil of the no-tillage and ridge culture treatment while keep lower and change less during the measured year in soil of conventional tillage treatment and no-tillage and fallow in winter treatment.

如垄作免耕的微生物生物量数值无论在下层或上层土壤中均较高。常规耕作、冬水免耕处理全年的微生物生物量量及变幅均较小。

The results show that: after the process of protective growth, grazing rest and reseeding, the plant species and vegetation coverage are increased, and biomasses are enhanced about 66.3~214, at the same time, the effect of the measure of combining protective growth, grazing rest and reseeding is better than tha...

结果表明：示范区退化草场经过封育休牧结合人工补播措施治理后，可使不同立地条件下的植物种增加，生物量提高66.3%～214%，植被盖度提高，且封育休牧结合人工补播措施较单一封育休牧措施效果更明显，前者生物量较后者提高1.54倍。

In order to screen out suitable lines for seashores in the east of China,lines of Spartin patens induced by low energy heavy ion were grown at simulating seashore environment condition.Leaf length and width,stem height and diameter,biomass and some photosynthetic indexes were assayed.

为从狐米草低能重离子突变系中筛选出生物量大、光合能力强、并可在滩涂生长良好的牧草用突变系，在室外模拟沿海滩涂环境中种植狐米草，检测各突变系的叶长、叶宽、茎高、茎直径、地上部分生物量以及各突变系单位面积的光合能力等指标。

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。