查询词典 biomass

The Three Gorges Region ; Degraded ecosystems ; Shrubland ; Biomass ; Cutting

三峡地区；退化生态系统；灌丛；生物量；砍伐

Hydroponical experiment was carried out to study the effects of different nitrogen levels 5, 10, 15, 20mmolL^(-1 on biomass, nitrate and soluble sugar contents in different parts in spinach ("Spinacia oleracea").

通过水培试验研究了不同氮素水平（5、10、15和20mmolL^(-1)）对4个菠菜品种生物量以及植株不同部位硝酸盐、可溶性糖含量的影响。

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。

The results showed that soil microbial numbers and biomass in Leymus chinensis and Stipa grandis grassland were higher than those were in degenerative Artemisia frigida and sandy rare-tree grassland significantly.

典型草原不同生态分布类型的土壤微生物量大小有显著不同，土壤微生物的数量与生物量的分布规律基本一致，且与土壤有机质的分布相关联。

To compare the difference of drain and intake water then converse with biomass in sweetfish and walking catfish's grow-up pond. The ammonia-N, nitrate-N, nitrite-N and phosphate were 383.7, 208.99, 21.62 and 119.03 mg/kg in sweetfish's pond, respectively.

水中营养盐部分香鱼与胡鲇池换算流水量与生物量后，香鱼每增长1 kg，它所产生之氨氮、硝酸氮、亚硝酸氮及正磷酸酸盐的量分别为383.7、208.99、21.62和119.03 mg；胡鲇每增长1 kg则分别为68.76、5.72、2.44及13.80 mg。

The total abundance of the phytoplankton ranged from 4.925×106 to 63.65×106 cells L-1and the total biomass from 1.632 to 20.420 mg L-1. Pseudanabaena sp. and Synedra ulna were dominant species in the community during January to March.

共检测到浮游植物76种；浮游植物总的细胞数量在4.925×106-63.65×106cells L-1之间，浮游植物的总生物量在1.632-20.420 mg L-1之间。

Ni content in pakchois was negatively related to the biomass of the plant. Ni application affected the plant adsorption and accumulation of other mineral nutrients, which showed certain synergia or antagonism.

褐土施Ni影响矿质营养元素的吸收和积累，且随施Ni量的增加表现出一定的协同和拮抗作用。

A combination analysis of SIP and in situ microbiological methods was applied on the anaerobic digestion of biomass organics suffering from severe acids inhibition. The studies found that accumulated acids were degraded mainly by Methanosarcina firstly with acetoclastic pathway and then with hydrogenotrophic pathway under mesophilic condition, whereas acids were mainly degraded to methane by the tandem reactions of syntrophic acetate oxidation and hydrogenotrophic methanogenesis under thermophilic condition.

联合应用稳定同位素表征技术和微生态原位表征方法，对高浓度有机酸胁迫条件下的生物质类有机物厌氧发酵甲烷化途径的研究结果表明，面临高浓度有机酸迅速累积的环境，中温发酵条件下，优势菌种为甲烷八叠球菌，依时间次序，通过乙酸发酵和氢营养型途径利用累积的有机酸产生甲烷；而在高温条件下，有机酸则通过乙酸氧化和氢营养型甲烷化途径的串联反应被降解。

Thermochemical conversion is the major way for high efficient utilization of biomass and a hot point of research both in China and abroad.

热化学技术是生物质高效利用的主要途径，是国内外专家学者密切关注的研究开发热点。

The main ways of research and industrialization to prepare bio-oil from biomass by thermochemical in domestic and abroad are reviewed.

本文综述了国内外生物质热化学转化制备液体燃料技术的主要研究途径、产业化进程的现状，论述了生物质液体燃料的产业化发展的可能性和存在的问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。