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   土壤生态系统 在 畜牧与动物医学 分类中 的翻译结果: 查询用时:0.518秒
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土壤生态系统
相关语句
  soil ecosystem
    DYMANICS AND CYCLING OF PHOSPHORUS IN THE SOIL ECOSYSTEM IN LEYMUS CHINENSIS GRANSLAND
    羊草草地土壤生态系统磷素转化及循环规律的研究
短句来源
    The relations between various P and labil P were analysed in soil ecosystem also. The results were that:1. The output is about 3. 14 and 7. 34kg/ha.
    分析了土壤生态系统中磷素转化及流通规律,得出规律如下:①放牧地和割草地生境内土壤系统的输出量分别是3.14kg/ha·y和734kg/ha·y;
短句来源
  “土壤生态系统”译为未确定词的双语例句
    The soil organic matter (SOM) dynamic in ecosystem was analyzed between plant and soil including soil C, N, P, S cycles in biogeochemical circulation.
    分析了生物地球化学循环中植物—土壤生态系统的有机物动态,土壤有机质(SOM)主要库类——土壤C,N,P,S循环特点;
短句来源
    Primarty Production of Alpine Shrub—Moss Type Grassland in Qilian Mountains and Respondence of SoU Ecosystems to Disturbing
    祁连山地高山灌木—苔藓草地初级生产能力及土壤生态系统对干扰的反应
短句来源
    Based on investigation at nature grassland in North-east of China,the rule of the alloca tion,dynamics,re1ations between P and ecological factors, and cycling of P were studied in soil at grazing and cutting grassland.
    本文基于对东北羊草草地的调查,研究了退化放牧地和保护区割草地生境土壤系统内几种形态磷素的分配、动态、土壤生态系统各形态磷素与土壤生态因子的关系以及速效磷和不同形态磷素之间的关系。
短句来源
    The power was a major input on the grassland ecosystems in Shanghuang village of the loess hilly region, but no nutrients input.
    上黄村草地土壤生态系统能量投入主要是动力投入,无营养物质投入。
短句来源
    The reasons of fertility on the grassland ecosystems decreased were that the nutrients transferred from soil to plants, and no nutrients input on the artificial pasture have maken the situation worse.
    草地土壤生态系统营养物质移出是草地土壤肥力退化的根本原因,无营养物质投入的人工草地更加剧了营养物质的迁出及土壤肥力的退化。
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  soil ecosystem
The smallest amount of fungi (54-59%) is found in the arable soil ecosystem.
      
Tillage affected nematode communities in the soil ecosystem by changing the trophic structure and gave a decreasing, but not statistically significant, trend in MI.
      
Most caecilians are thought to be generalist predators of soil ecosystem engineers (earthworms, termites and ants), but it has been suggested that members of the East African genus Boulengerula are specialist predators.
      
To analyse nematode community structures appropriately for the evaluation of soil ecosystem status and function requires information on the life history traits of K-strategic nematodes.
      
The purported benefits of conservation tillage and continuous cropping in agricultural systems include enhancement of soil ecosystem functions to improve nutrient availability to crops and soil C storage.
      
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The power was a major input on the grassland ecosystems in Shanghuang village of the loess hilly region. There was no nutrients input on the ecosystems. The energy output from the artificial pasture was over 50% of total energy output, but area of artificial pasture was only 20~52% of total area. The energy input and output of the ecosystems were fluctuated. The reasons of fertility on the grassland ecosystems decreased were that the nutrients transferred from soil to plants. and no nutrients input on the...

The power was a major input on the grassland ecosystems in Shanghuang village of the loess hilly region. There was no nutrients input on the ecosystems. The energy output from the artificial pasture was over 50% of total energy output, but area of artificial pasture was only 20~52% of total area. The energy input and output of the ecosystems were fluctuated. The reasons of fertility on the grassland ecosystems decreased were that the nutrients transferred from soil to plants. and no nutrients input on the artificial pasture have maken the situtation worse.

摘要:上黄村草地土壤生态系统能量投入主要是动力投入,无营养物质的投入。人工草地能量产出占总能量产出的50%以上,而面积仅为20~52%;草地土壤能量投入具有起伏性,产出有波动性。草地土壤生态系统营养物质移出是草地土壤肥力退化根本原因,无营养物质投入的人工草地,更加剧了营养物质的迁出及土壤肥力的退化。

The phytomass and primary production of alpine shrub — moss type grassland were investigated in Qilian Mountains(3250m above sea level, with slopes facing northward) during 1980—81. Furthermore, the inquiry has been made preliminarily in several aspects related to the structure and function of this ecosystems with treats of man—made disturbing on the vegetation. The results obtained showed that the gross living phytomass was 3500g/m~2, and the ratio of above ground/underground phytomass was about 0.28; net yearly...

The phytomass and primary production of alpine shrub — moss type grassland were investigated in Qilian Mountains(3250m above sea level, with slopes facing northward) during 1980—81. Furthermore, the inquiry has been made preliminarily in several aspects related to the structure and function of this ecosystems with treats of man—made disturbing on the vegetation. The results obtained showed that the gross living phytomass was 3500g/m~2, and the ratio of above ground/underground phytomass was about 0.28; net yearly primary production was estimated at 263g/m2 for above ground and 143g/m~2 for underground, the heat quantity of net yearly primary production of above—ground amounted to 3921kJ/m~2. The average rate of decomposition was measured to be 18.5% a year in moss layer and only 1.2% a year in the 10cm depth of soil. What impressed people most is that the moss growing responds high sensitively to the soil water content and the rainfall in growing season, therefor , it is easily to deduce that there is particularly biological significance for moss with high potential to assimilate solar energy in the alpine environment. The study has pointed out, as a compensation for the harsh habitat, that a special regime of nutrient conversion and provision was established within the moss layer which bonds with large amount of roots, and that the essential processes of the biological circulation through the community could be to great extent characterised by such compensative mechanism. The results also indicated, because the moss layer is high developed (even to the thickness of 40cm) , and the status of water and heat within soil depth is deeply conditioned by the moss layer, so that, once the vegetation has been severely disturbed, the function of soil ecosystems in maintaining frozen earth and conserving water source would be substantially lost.

本文报导了祁连山冷龙岭东段马牙雪山前山带阴坡高山灌木—苔藓草地植物量及初级生产能力,并结合立地条件的观测资料,就土壤生态系统的似冻原特征及其对人工干扰的反应进行了初步探讨。

Based on investigation at nature grassland in North-east of China,the rule of the alloca tion,dynamics,re1ations between P and ecological factors, and cycling of P were studied in soil at grazing and cutting grassland. The relations between various P and labil P were analysed in soil ecosystem also. The results were that:1. The output is about 3. 14 and 7. 34kg/ha. y,input is 2. 75 and 2. 00kg/ha· y seperatly in grazing and cutting grassland soil ecosystems. 2. The reason of deteriorate was caused by the soil...

Based on investigation at nature grassland in North-east of China,the rule of the alloca tion,dynamics,re1ations between P and ecological factors, and cycling of P were studied in soil at grazing and cutting grassland. The relations between various P and labil P were analysed in soil ecosystem also. The results were that:1. The output is about 3. 14 and 7. 34kg/ha. y,input is 2. 75 and 2. 00kg/ha· y seperatly in grazing and cutting grassland soil ecosystems. 2. The reason of deteriorate was caused by the soil enviroment worsen,which blocked the cycles of elements in soil. 3. The activity of soil ecosystem can be explained with the flowing rates and flowing capacities between pools rather than the budgets of pools.

本文基于对东北羊草草地的调查,研究了退化放牧地和保护区割草地生境土壤系统内几种形态磷素的分配、动态、土壤生态系统各形态磷素与土壤生态因子的关系以及速效磷和不同形态磷素之间的关系。分析了土壤生态系统中磷素转化及流通规律,得出规律如下:①放牧地和割草地生境内土壤系统的输出量分别是3.14kg/ha·y和734kg/ha·y;输入量分别是2.75kg/ha·y和2.00kg/ha·y。②从磷素在土壤系统内循林规律看,轻度退化草地主要是土壤环境因子恶化阻碍磷素的流通引起的。③土壤系统磷素在各库的贮量不能说明其活跃程度,而磷素在各库的流通量和流通速率可以表示出循环的活跃程度。

 
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