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mean ash
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  平均灰分
     The results indicated that contents of all measured elements among provenances varied significantly. The mean ash content was 4.18%.
     3.对11a生短枝木麻黄种源小枝的营养元素研究表明,各元素在种源间的差异达极显著水平,短枝木麻黄小枝平均灰分含量为4.18%。
短句来源
     The mean ash content was higher, and the mean of GCV and AFCV of Tsoongiodendron odorum were lower than those of Cunninghamia lanceolata .
     观光木的平均灰分含量高于杉木 ,但GCV和AFCV均低于杉木 ;
短句来源
     The variation and characteristics of mineral elements in branchlets of 11-year-old provenances of Casuarina equisetifolia were studied. The results indicated that contents of all measured elements among provenances varied significantly. The mean ash content was 4.18%.
     对11年生短枝木麻黄种源小枝的营养元素研究表明,各元素在种源间的差异达极显著水平,短枝木麻黄平均灰分含量为4.18%.
短句来源
  “mean ash”译为未确定词的双语例句
     Mean ash free caloric values of the plants were as follows:leaf(18188.5 ̄25879.0J·g -1 )>branch or stem (16908 9 ̄23012 6 J·g -1 ) >root(15620 7 ̄20345 8J·g -1 ); The caloric value decreased from arbor layer to shrub layer till herb layer at the same community.
     根14927.1~19287.8J·g-1和15620.7~20345.8J·g-1,枝、干16158.1~21815.9J·g-1和16908.9~23012.6J·g-1。
短句来源
     The mean ash contents of seston was 42 38%.
     颗粒悬浮物的灰分含量平均值为 42 .3 8%。
短句来源
     The mean ash content increased in an order from tree layer, shrub layer to herb layer, while those of GCV and AFCV decreased.
     从乔木层、灌木层到草本层 ,灰分含量依次增加 ,GCV和AFCV则依次降低 .
短句来源
  相似匹配句对
     The mean ash contents of seston was 42 38%.
     颗粒悬浮物的灰分含量平均值为 42 .3 8%。
短句来源
     Mean Entropy
     平均熵
短句来源
     DW of ash.
     DW ;
短句来源
     DW of ash;
     DW ;
短句来源
     What is the "SCM"mean?
     什么是供应链管理?
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  mean ash
A mean ash content of 16.5±1.1% was obtained for different brands of cigarettes whereas smoke content was found to be 4.8±0.8%.
      
In general, heat of combustion and specific gravity followed the sequence: heartwood >amp;gt; sapwood >amp;gt; bark, while mean ash percentage followed a reverse order (bark >amp;gt; sapwood >amp;gt; heartwood).
      
The mean cortical thickness, the mean ash weight per unit bone volume, and the ash as percentage of dry weight of femur were significantly lower in SHR than in WKY.
      
Mean ash content of tibias from iguanas fed the low calcium diets was lower, particularly in iguanas that developed severe osteomalacia, than in iguanas fed the control diet (2.7% calcium, 1.1% phosphorus).
      
The mean ash content of copepods was 7.1%, and the energy density was 20.8 kJ g-1 ash-free dry weight (AFDW).
      
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The study of caloric values of different aboveground organs of some dominant and common species in south subtropical evergreen broad-leaved forest in Heishiding Nature Reserve, Guangdong Province, showed that the dry weight caloric values were affected obviously by the ash contents of plant species and of different organs of plant,and the ash-free caloric values varied with different species and organs. Mean ash-free caloric values for different organs of the same species among 8 species in...

The study of caloric values of different aboveground organs of some dominant and common species in south subtropical evergreen broad-leaved forest in Heishiding Nature Reserve, Guangdong Province, showed that the dry weight caloric values were affected obviously by the ash contents of plant species and of different organs of plant,and the ash-free caloric values varied with different species and organs. Mean ash-free caloric values for different organs of the same species among 8 species in the tree layer ranged from 19.261 to 20.672 kJ g-1, the ranking of Which in species being Ormosia glaberrima > Neolitsea phanerophlebia > Quercus chungii > Machilus breviflora > Cryptocarya concinna >Artocarpus styracifolius>Lithocarpus lohangwa >Ixonathes chinensis. Mean ash-free caloric values of the same organ for 8 species in the tree layer were 21.417 kJ g-1 for leaves, 19.929 kJ g-1 for twigs, 19.961 kJ g-1 for trunk barks, and 18.664 kJ g-1 for trunks.Ash-free caloric values of the same organ in different abovearound lavers tended to be in the following sequence; tree layer>shrub layer>herbaceous layer, which was shown markedly in ash-free caloric values in leaves.

对黑石顶自然保护区南亚热带低山常绿阔叶林地上部分各层次一些优势种和常见种的干重热值和去灰分热值的测定表明:植物的干重热值受灰分含量影响较大,植物去灰分热值随种类、器官而异,乔木层8种植物地上部分各器官平均去灰分热值在19.261-20.672kJg-1之间,各植物种的平均去灰分热值变化顺序如下:光叶红豆>显脉新木姜>福建青冈>短花序楠>生虫树>小叶胭脂>硬叶稠>粘木。乔木层各器官的平均去灰分热值是:叶21.417kJg-1,幼枝19.929kJg-1,干树皮19.961kJg-1,干材18.664kJg-1。地上部分各层次相同器官平均去灰分热值有下列变化趋势:乔木层>灌木层>草本层,这一关系在植物叶的去灰分热值中表现尤为明显.

The gross and ash free caloric values of plants were determined for 37 species of 4 plant communities at Dinghushan,Guangdong province,China.Mean ash free caloric values of the plants were as follows:leaf(18188.5 ̄25879.0J·g -1 )>branch or stem (16908 9 ̄23012 6 J·g -1 ) >root(15620 7 ̄20345 8J·g -1 );The caloric value decreased from arbor layer to shrub layer till herb layer at the same community.The caloric value of leaves showed the same trend,being related to the light extinction...

The gross and ash free caloric values of plants were determined for 37 species of 4 plant communities at Dinghushan,Guangdong province,China.Mean ash free caloric values of the plants were as follows:leaf(18188.5 ̄25879.0J·g -1 )>branch or stem (16908 9 ̄23012 6 J·g -1 ) >root(15620 7 ̄20345 8J·g -1 );The caloric value decreased from arbor layer to shrub layer till herb layer at the same community.The caloric value of leaves showed the same trend,being related to the light extinction in the community.The variaion in caloric value of a certain plant species among the communities at the early successional stages,such as mountain shrub grassland coniferous forest was greater than that of the same plant species at the late successional stages,such as coniferous broadleaved forest and monsoon evergreen broad leaved forest.The caloric value of canopy leaves was higher than that of the newly shed litter foliage,And the caloric value of the newly shed litter foliage was higher than that of the ground litter rotting.Temperature and leaching might be the main ecological factors influencing the releasing of energy of litter foliage.

在测定了南亚热带鼎湖山的4种植物群落37种主要植物热值的基础上得知:所有这些植物各器官的干重热值和去灰分热值分布范围为:叶片17242.7~24533.3J·g-1和18188.5~25879.0J·g-1;根14927.1~19287.8J·g-1和15620.7~20345.8J·g-1,枝、干16158.1~21815.9J·g-1和16908.9~23012.6J·g-1。呈现叶>枝或干>根,地上部分>地下部分的格局;同一群落从乔木层到草本层,各层次的叶片和平均干重热值是逐渐减小的,且上层乔木单位面积叶片含能量高于下层灌木的,这种格局可能与群落内光照强度的递减有关;同一种植物在演替早期各群落内的热值差距大,而在演替后期各群落内的热值差距小得多,这意味着随群落演替的进行,生境趋同性增大,因而热值接近;各群落内叶片的热值最高,凋落叶的次之,地被物的最小,影响凋落叶释放能量的主要因素不是微生物数量的大小,而可能是温度、淋溶和水分等生态因子。

Based on the measurement of biomass and productivity, the caloric value of plant samples, the standing crop of energy, net energy production and energy conversing efficiency of mixed forest of Cunninghamia lanceolata and Tsoongiodendron odorum were determined. Among the aboveground fractions, ash content was highest in barks of Tsoongiodendron odorum and in leaves of Cunninghamia lanceolata , and GCV and AFCV were both highest in leaves of the two species. For underground fractions, ash content...

Based on the measurement of biomass and productivity, the caloric value of plant samples, the standing crop of energy, net energy production and energy conversing efficiency of mixed forest of Cunninghamia lanceolata and Tsoongiodendron odorum were determined. Among the aboveground fractions, ash content was highest in barks of Tsoongiodendron odorum and in leaves of Cunninghamia lanceolata , and GCV and AFCV were both highest in leaves of the two species. For underground fractions, ash content increased with the increase of root diameter size, and GCV was highest in coarse roots and lowest in fine roots. The mean ash content was higher, and the mean of GCV and AFCV of Tsoongiodendron odorum were lower than those of Cunninghamia lanceolata . The mean ash content increased in an order from tree layer, shrub layer to herb layer, while those of GCV and AFCV decreased. The standing crop, net accumulation, production and returning of energy of mixed forest were 1.26, 1.15, 1.09 and 1.02 times as much as that of pure forest, respectively. The undergrowth played an important role in energy process, though it accounted for only a slight proportion in community. The energy conversing efficiency was 1.57% for mixed forest and 1.44% for pure forest. The ratio of energy accumulation was higher, and the rate of energy flow was lower in mixed forest than in pure forest. The tree layer had a higher ratio of energy accumulation and a lower rate of energy flow than undergrowth did. In view of energy efficiency, trees with high accumulated rate of energy should be introduced and growth of undergrowth should be promoted in a managed forest community. Tab 4, Ref 22

对杉木观光木混交林群落能量的研究结果表明 :混交林中观光木地上部分灰分含量以皮最高 ,而杉木则以叶最高 ,两者GCV(干重热值 )和AFCV(去灰分热值 )均以叶为最高 ;观光木、杉木地下各部分的灰分含量均随径级的减小而增加 ,GCV均以粗根最高 ,细根最低 ;观光木的平均灰分含量高于杉木 ,但GCV和AFCV均低于杉木 ;从乔木层、灌木层到草本层 ,灰分含量依次增加 ,GCV和AFCV则依次降低 .混交林群落的能量现存量、年净增量、归还量和净固定量分别是纯林的 1.2 6倍、1.15倍、1.0 2倍和 1.0 9倍 ,其中以乔木层的占大部分 ,林下植被虽然能量现存量仅占群落的很小一部分 ,而其能量年净增量、归还量和净固定量却占有一定比重 .混交林群落的太阳能转化率为 1.5 7% ,而纯林为 1.44 % .表明杉观混交林是一种能量生产力较高和维持地力能力较强的杉阔混交类型 .同时 ,混交林的能量累积比大于纯林 ,能量流动速率则低于纯林 ;乔木层的能量累积比高于林下植被 ,能量流动速率则低于林下植被 .从能量的角度看 ,构建合理的群落结构必须选择高能量累积比的乔木层树种 ,同时须促进能量流动速率快的林下植被...

对杉木观光木混交林群落能量的研究结果表明 :混交林中观光木地上部分灰分含量以皮最高 ,而杉木则以叶最高 ,两者GCV(干重热值 )和AFCV(去灰分热值 )均以叶为最高 ;观光木、杉木地下各部分的灰分含量均随径级的减小而增加 ,GCV均以粗根最高 ,细根最低 ;观光木的平均灰分含量高于杉木 ,但GCV和AFCV均低于杉木 ;从乔木层、灌木层到草本层 ,灰分含量依次增加 ,GCV和AFCV则依次降低 .混交林群落的能量现存量、年净增量、归还量和净固定量分别是纯林的 1.2 6倍、1.15倍、1.0 2倍和 1.0 9倍 ,其中以乔木层的占大部分 ,林下植被虽然能量现存量仅占群落的很小一部分 ,而其能量年净增量、归还量和净固定量却占有一定比重 .混交林群落的太阳能转化率为 1.5 7% ,而纯林为 1.44 % .表明杉观混交林是一种能量生产力较高和维持地力能力较强的杉阔混交类型 .同时 ,混交林的能量累积比大于纯林 ,能量流动速率则低于纯林 ;乔木层的能量累积比高于林下植被 ,能量流动速率则低于林下植被 .从能量的角度看 ,构建合理的群落结构必须选择高能量累积比的乔木层树种 ,同时须促进能量流动速率快的林下植被的发育以维持和提高地力 .表 4参 2 2

 
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