查询词典 nutrient

The soil nutrient in different rangeland stapes was gradually decreased with soil depth.

不同草地类型土壤养分含量的变化是随着土层加深而降低。

Because the root systems were more healthy and abundant in mycorrhizal infected muskmelon plants, Use of mycorrhizal plants combined with supply of sufficient nutrient and improvement of cultivation technique for ratoon cultivation could be successful in plastic house.

在简易温网室栽培洋香瓜，由於内生菌根植株根群发育健康，配合后续营养之供给及栽培技术之改进，使洋香瓜宿根栽培成功。

The CO2 uptake rate of plants is affected by the plant species and environmental conditions such as photosynthetically active radiation, temperature, water and nutrient contents. PAR is the most immediate environmental control on photosynthesis while air temperature affects both photorespiration and dark respiration. In the natural condition, PAR and temperature play an important role in net CO2 uptake. The effects of PAR and air temperature on the CO2 uptake of Pterocarpus macrocarpus grown in a natural habitat were studied in the present work. Due to many uncontrollable factors, a simple rectangular hyperbola could not represent the measured data. The data were divided into groups of 2℃ intervals; CO2 uptake in each group may then be related to PAR by a rectangular hyperbola function. Using the obtained functions, the effect of PAR was removed from the original data.

用涡度相关法对亚热带红壤丘陵区人工针叶林的二氧化碳、水、热通量进行了观测，重点分析了23m、39m两层高度的观测结果，同时把观测期分为春季和冬季两个不同时间段作了对比：结果表明，不管冬季还是春季，39m高度所测的总通量值和夜间通量值都要小于23m的观测值，这种通量差别表明：23m高度的观测结果更接近当地生态系统与大气之间的通量交换值，在此种生态类型条件下用涡度相关法测碳通量时，在23m、39m两层高度之间仍然存在大气平流现象；该试验区植被在冬季仍然可以进行光合作用，而且光合作用所吸收的CO2大于呼吸作用所排放的CO2，因此该种生态系统在冬季仍表现为碳汇；春季的碳通量值为冬季的2倍以上。

The analysis result of the soil nutrient background value at the beginning of site investigation under two reforest patterns and farmland showed: the content of soil total N and Hydrolysable N in pattern 1 were conspicuously higher than the other two. The content of SOM and CEC in subsoil in pattern 1 are higher than in the other two.

采用常规理化测试方法和制备平衡土壤溶液测试两种方法相结合，分析各样地土壤养分特征、土壤养分储量年际变化及土壤溶液中速效养分动态，以探索不同退耕还林模式土壤养分的动态变化规律，为该领域的进一步深入研究奠定基础。

RCP is regarded as an assistant method in deep hypothermic circulatory arrest in that it provides partial brain blood flow,maintains a low brain temperature,optimizes cerebral metabolic function during DHCA by supplying oxygen and some nutrient and removal of catabolic products;it also reduces the incidence of cerebral embolization by flushing out air and particulate microemboli from the arterial tree before the reinstitution of antegrade perfusion,thus prolonging the limitation of safety of DHCA.But brain edema probably happens to restrict the clinical use of this method.

上腔静脉逆行性灌注是深低温停循环脑保护的辅助手段，已证明在低温状态下，它为脑部提供低流量血流，维持脑部低温状态；提供部分氧和营养物质，运走代谢产物；减少气栓及栓塞的发生，从而延长了深低温停循环脑保护的安全时限，而脑水肿的危险性限制了该方法在临床的应用。

By examining foods on the basis of nutrient density, the relative nutritional merits of a food can be seen easily.

作物当时的营养状况，可在适当时期对植物的系统采样进行营养分析。

The rich active ingredients retained work to regulate skin's functions, replenish with required trace elements and nutrients, and improves metabolism and nutrient replaceability.

充分保留植物的活性成分，调节肌肤机能，补充肌肤所需的微量元素与养分，有效增强肌肤代谢物与养分的置换能力，全面滋养肌肤，完美解决肌肤问题，令肌肤白嫩，晶莹，尊贵高雅。

Nutrient losses of five kinds of land use systems in the Three Gorge Reservior Area was studied.

通过两年的定位实验，研究了三峡库区5种代表性土地利用方式对养分流失的重要性。

Because of the activity of mankind that do to the transference and retroflexion of grains of soil, the intensity of soil erosion and nutrient losing has been enhanced, whether it is in the flat, farmland or woodland.

2~(137)Cs在土壤剖面中随深度的增加而呈下降趋势，在非耕作土和未扰动的土壤主要分布在土壤剖面的上部，并富集在土壤表层之间。

The deterioration of soil quality and the decline in productivity on sloping land are the main factors that limit the revegetation of the Loess Plateau. However, these two factors largely depend on soil nutrient status.

：坡地土壤质量退化以及生产力下降是限制坡地植被恢复的主要因素，而坡地土壤质量和生产力在很大程度上取决于土壤养分状况。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。