查询词典 biomass

The biomass of reed community in bank of yellow river was greater than that in flood control dam, while the later is greater than that in shoal.

不同生境中芦苇群落的生物量表现为：生长在黄河河道的大于生长在防洪坝以内大于生长在滩涂上的。

Mowing reduces the above ground biomass and density of community, reduces fine grass percentage in the community, increases forbs and leads habitat worsen.

割草使群落地上生物量和密度下降，优良牧草在群落中的比例减少，杂类草增加，并引起生境条件恶化。

Additionally, species with larger plasticity in biomass allocation and relative growth rate also showed higher seedling survival rate.7 All these suggested that higher light availability in grazed disturbed meadow community favor seedling recruitment for these familiar forbs component species, but bottom shade in fertilized meadow community restrain seedling recruitment for these species.

在变化的微生境下，具有较小生长可塑性的物种具有相对较大的幼苗存活率；而生物量、株高可塑性和平均可塑性较高的物种具有相对较大的幼苗越冬存活率；具有较大的生物量分配和相对生长率可塑性的物种幼苗具有相对较大的存活率。7放牧干扰下的高光照微生境有利于这些草甸常见组分种实生幼苗的更新补充，而施肥后草甸群落冠层底部的低光生境不利于这些物种的更新补充。

Four typical grassland communities, Stipa klemenzii, Stipa grandis, Leymus chinensis and Leymus chinensis + forbs, had been chosen along precipitation gradients from 200, 290, 350 to 450 mm respectively in Inner Mongolia Steppe. The objectives of this study were to determine the effects of grazing on plant community composition, aboveground and belowground biomass, species and functional group diversities and the relationship between diversity and productivity, the effects of grazing on soil seed bank species composition, seed density and diversity along the transect.

选取内蒙古草原三种主要草原类型(草甸草原、典型草原和荒漠草原)代表性群落羊草杂类草群落、羊草群落和大针茅群落、小针茅群落，应用样线法沿水分梯度研究放牧对内蒙古草原不同植物群落功能群组成、多样性、生产力以及多样性与生产力关系的影响和放牧对土壤种子库组成、大小以及多样性的影响，在此基础上，研究土壤种子库与地上植被间的关系。

The relationship between biomass and succession gradient also showed unimodel pattern: y=-8.7647χ^2+86.696χ+67.14 (R^2=0.6164). As for functional groups of life form, annual plants showed decreasing trend in the community, perennial grass showed increasing tendency, while sedges and perennial forbs both showed increasing tendency, in which the increasing extend for sedges slowly and for grasses sharply.

一年生植物在群落中的数量呈下降趋势；禾本科植物在群落中的数量呈上升趋势；莎草类及杂类草植物在群落中的数量均呈增加趋势，但莎草类植物增幅不大，而杂类草植物则急剧增加。

Compared at national average level, the mean biomass of almost all kinds of communities in Jiuzhaigou Valley is higher except that of oak forest.

与全国平均水平相比，九寨沟几乎所有类型的群落的平均生物量都要高于全国同类群落的平均水平。

The results of aboveground biomass variance analysis are that red clover, alfafa and crested dogstaiVs are significantly higher than the others, then fountain grass, Korean lovegass and tall fescue are followed.

地上鲜重方差分析表明：豆科牧草中的红三叶、紫花苜蓿和非洲狗尾草地上植物量显著高于其它草种，其次地上植物量较高的有东非狼尾草、云南狼尾草、云南知风草和高羊茅。

The liquid oil obtained from cellulose was mainly composed of phenols, benzenes, furans and cyclopentanones. Abundant phenol derivatives were obtained from high lignin content biomass, for example walnut shell (75.88%).

生物质中大量的氧以CO和CO2的形式脱除，所以得到的液体燃油具有较高热值、低含氧量、高H/C比；初步筛选了可选控的催化重组催化剂，以控制产物中的芳香化合物和直链烷烃的分布。

Boiler tubes for all types of fuel such as coal, gas, oil, black liquor and biomass.

我们的锅炉管可用于对各类燃料锅炉管，如煤炭，天然气，石油等等。

With gas chromatographic and mass spectrum analysis technology,the chemical composition of biomass tar and its distillation s were analyzed.

主要采用色谱-质谱联机成分分析法对生物质焦油及其馏分试样进行成分分析。

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。