查询词典 biomass

Biomass and soil organic carbon dynamics of Cryptomeria fortunei plantations at 5,10,17,22 and 26 years-old were studied at Pengzhou County,Sichuan Province,employing volume-biomass method and soil profile investigation.

以四川彭州为典型案例，采用材积源生物量法和土壤剖面分析方法，对栽植5、10、17、22和26年的人工柳杉林生物量及其土壤碳动态进行了初步研究。

The paper introduces the study and application of biomass energy utilization technique such as solidification,gasification, liquefaction,splitting decomposition and direct combustion about biomass energy, and points out the problem...

文章介绍生物质固化、气化、液化、热解、发酵和直接燃烧等生物质能利用技术的研究和应用情况，指出了这些技术中需要解决的问题以及目前的主要研究方向。

Soil microbial biomass and activities of invertase and urease all tended to decrease after pot-culture experiment, while the correlations between these biochemical properties and field ages were similar to those before this experiment, suggesting that rice cultivation without fertilization consumed part of soil microbial biomass, decreased soil enzyme activities correlated with C and N transformation, and affected soil nutrients status disadvantageously.

温室盆栽试验之后，水稻土的微生物生物量及酶活性与利用年限之间的关系规律和种植水稻之前基本一致，且整体上又趋于下降，即无施肥条件下种植水稻转化利用了土壤部分微生物生物量，并减弱了与碳氮转化相关酶的活性，对保持水稻土的营养水平造成不利影响。

The results are as follows: 1 mean length and weight tend to increase while dominant length and weight groups are noted to be increasing from Oct. 2004 to Sep. 2007; 2 by using length-weight formula, calculated weight value at the same length is higher for track-data than that for background-data; 3 growth parameters of L∞, W∞ and K respectively increase from 140.5 mm, 36.5 g and 0.28 a-1 to 186.0 mm, 118.5 g and 0.36 a-1 after artificial reef deployment; 4 appreciable increases are noted in body length and weight growth rate after artificial reef deployment, and inflexion age of weight growth increases from 2.55 to 2.58 years after artificial reef deployment; 5 there is an increase in critical biomass age from 3.21 to 3.77 years after artificial reef deployment; 6 there is a decrease in total instantaneous population mortality from 1.065 to 0.75 per year after artificial reef deployment; and 7 the overall population biomass of small yellow croaker stands at 131.5 tons.

结果表明：投礁后小黄鱼的平均体长和体重均呈上升趋势，优势体长组和体重组均向高值移动；同等体长情况下由投礁后体长体重关系式估算的体重比用投礁前的体长体重关系式估算的值大；投礁后小黄鱼个体生长方程的参数 L∞、W∞、K 值分别从投礁前的140.5 mm、36.5 g和0.28 a-1增加到186.0 mm、118.5 g和0.36 a-1；投礁后体长与体重生长速度与投礁前相比有所增大，且体重生长的拐点年龄从投礁前2.55 a提高到2007年的2.58 a；小黄鱼种群生物量增长的临界年龄从投礁前的3.21 a提高到3.77 a；小黄鱼种群的总瞬时死亡率从投礁前的1.065 a-1减小到0.75 a-1；鱼礁区小黄鱼资源量约

The results indicae that the dominant species is Potamogeton malaianus Miq in the six aquatic plants with maximum fresh unit biomass of 6131 g/m^2, accounting for 61.59% of the total sample; The sub-dominant species is Egeria densa Pianch with maximum fresh unit biomass 3716 g/m^2, accounting for 24.78% of the total sample.

测定结果表明：在采集到的6种水草中竹叶眼子菜为优势种群，单位生物量最高为6131 g/平方公尺，占全部样本总量的61.59%；水蕴草为次优势种群，单位生物量最高为3716 g/平方公尺，占全部样本总量的24.78%。

Based on the characteristics of biomass fuel, this article summarizes the sources of alkali metals in biomass and the elutriation and migration.

在明确了生物质燃料特点的基础上，对生物质中碱金属元素的来源和析出迁移规律进行了概述。

The phytoplankton community was mainly composed of Cyanophyceae, Euglenophyceae, Bacillariophyceae, and Chlorophyceae, and the dominant species were Oscillatoria subtillissima, Dactylococcopsis irregularis, Euglena caudata, Melosira granulata, Cyclotella meneghiniana, Chlorella vulgaris, and Scenedesmus quadricauda. The main environmental factors affecting the distribution of phytoplankton species in July were ammonium-nitrogen, dissolved oxygen, water temperature, and total phosphorus, while those in September were pH, water temperature, dissolved oxygen, transparency, and total nitrogen. Water transparency and zooplankton were the main factors affecting the biomass of Cryptophyceae, Pyrrophyceae, and Bacillariophyceae; while nitrogen, phosphorous, and dissolved oxygen were the main factors affecting the biomass of Cyanophyceae, Euglenophyceae, and Chlorophyceae.

结果表明：调查期间共鉴定出浮游植物384种，隶属于8门，浮游植物密度范围为2.01×105～57.60×105 cells·L-1；群落组成以蓝藻、裸藻、硅藻和绿藻为主，主要优势种有细微颤藻、无常蓝纤维藻、尾裸藻、颗粒直链藻、梅尼小环藻、普通小球藻、四尾栅藻等；7月影响浮游植物分布的主要环境因子依次为铵态氮、溶解氧、水温和总磷，而9月的pH值、水温、溶解氧、透明度和总氮含量对浮游植物的分布产生影响较大；其中，透明度和浮游动物量是影响隐藻、甲藻和硅藻藻类生物量的主要环境因子，而蓝藻、裸藻、绿藻主要受水体氮磷营养盐浓度和溶解氧的影响。

Biomass gasification is one of the technologies of energetic use of biomass.

生物质气化是生物质利用的充满活力的技术之一。

A review of current researches and development of biomass tar purify and a biomass gasification technology is given.

对目前国内外生物质焦油的脱除技术及生物质气化技术的研究发展现状进行了综述。

One of the most effective measures to transform biomass energy into clean energy with high quality is to gasify biomass, such as straw and sawdust. This kind of biogas can be used as the fuel of the internal combustion engine directly.

将秸杆、锯末等生物质气化是将生物质能转换为高效高品位清洁能源的最有效措施之一，这种生物质气可作为内燃机的代用燃料。

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。