查询词典 biomass

Whith the increase of water supply,the biomass,tree height,total branch number and length,total leaf number and area,specific leaf area and fine root length increased,and root/shoot biomass,sclerophyllous characters and leaf succulence degree decreased.

随着施水量的增加，幼苗生物量、株高、总枝数和长度、总叶片数、总叶面积、比叶面积和细根长逐渐增大，而生物量根冠比、硬叶特征和叶肉质化程度逐渐减小。

Biomass, as the carrier of hydrogen, could be made use of for hydrogen rich gas production by thermochemistry conversion, which is a kind of advanced technology. With this method, sustainable utilization of biomass could be achieved, which is beneficial to the environmental protection.

而生物质又是氢的载体，利用生物质热转化技术制取富氢燃气是一种先进的生物质能转换方式，对于能源的可持续利用和环境保护具有重要意义。

Process routing and technique status used in biomass thermolysis liquefaction, chemical liquefaction and co liquefaction of biomass and coal, as well as characteristics of liquefied products, are introduced with emphasis.

重点介绍了生物质热裂解液化，化学液化，生物质与煤共液化所采用的工艺路线和技术现状及制备的液化产物的性质。

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的"同物异谱"现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被"红边"范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

In conclusion, the efficiency of biomass formation at the tussock scale was decided in certain degree with the size-dependent reproduction and competitive relation pattern among ramets. And the early-maturing switchgrass presented higher efficiency of biomass production based on its size-independent reproduction and relaxed competitive relationship.

植丛尺度的生物质形成在一定程度上取决于分株生殖发生的大小依赖程度和分株间竞争关系格局，基于植丛尺度普遍的生殖发生和明显弱化的光资源竞争，早熟柳枝稷表现出更为高效的生物质形成机制。

In order to deeply understand biomass formation for Panicum virgatum in the semiarid loess hilly-gully regions, we investigated the biomass production, ramet generation, and resource supply and demand at the plot and tussock scales during the yearly life cycles of two switchgrass species, i.e. early-maturing and late-maturing ones, respectively.

为深入认识半干旱黄土丘陵沟壑区引种能源植物柳枝稷生物质生产的开发潜力及其约束机制，调查了农田、植丛尺度上早熟和晚熟柳枝稷年度生命周期内生物量累积、分株建成动态，以及土壤水分供求平衡过程。

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的&同物异谱&现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被&红边&范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

Their Mn accumulated-concentration of shoots were as high as 26.84 mg·plant-1 and Mn concentration of their leaves were 24447.1 mg·kg-1 when Mn concentration was 15000μmol·L-1 in solutions under the condition of their grow 48d in aquicultural experiments. Their biomass decreased with increasing of Mn concentration levels, the differences of their biomass of shoots were remarkably differrent (P=0.05), comparing control.

营养液培养条件下生长48d的水蓼地上部分积累量最高达26.84 mg·plant-1；当Mn供应水平为15000μmol·L-1时，水蓼叶锰含量达到24447.1 mg·kg-1；水蓼生物量随着锰处理浓度的增加而减少，在锰浓度处理≥8000μmol·L-1时，水蓼地上部生物量与对照相比，差异达显著(P=0.05)。

Based on data collected at four stations in Daning River in the spring of 2004 and 2005, phytoplankton community structure, vertical distribution, abundance, biomass, C contents, diversity index, richness index and evenness index were studied. The causes of eutrophication and water blooms in Daning River were analysed and control measures were then put forward. The dominant species were Asterionella Formosa, Cryptomonas ovata, Cyclotella caspia, Stephanodiscus neoastraea in the spring of 2004 and those were Pandorina morum, Eudorina elegans, Cyclotella caspia, Cryptomonas ovata in the spring of 2005. Average cell densities, biomass, C contents in the spring of 2004 and 2005 were 171.1×10^5 cells/L, 12.2 mg/L, 1732.2g C/L and 113.1×10^5 cells/L, 10.1 mg/L, 1395.9g C/L, respectively.

报道了大宁河2004年春季和2005年春季浮游藻类的种类组成、垂直分布、数量、生物量以及C含量的调查结果，并应用多样性指数、丰富度指数和均匀性指数对其水质进行了综合评价；对大宁河蓄水后出现的富营养化现象和春季发生&水华&的原因进行了探讨，同时提出了控制水体富营养化的建议。2004年春季，藻类优势种为美丽星杆藻、卵形隐藻、里海小环藻和新星形冠盘藻；2005年春季的优势种为实球藻、空球藻、里海小环藻和卵形隐藻。2004年和2005年的细胞密度、生物量和C含量分别平均为171.1×10^5 cells/L，12.2 mg/L，1732.2g C/L和113.1×10^5 cells/L，10.1 mg/L，

The biomass structure of Bambusa wenchouensis population was studied in this paper.The regression models of each biomass component based on DBH and the diameter of culm base were constructed.

研究了丛生竹种大木竹种群的生物量结构，并对其各器官生物量与胸径和地径的相关模型进行了拟合。

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。