undisturbed sample

简明释义

原状土试样

英英释义

例句

1.The biologist emphasized the importance of collecting an undisturbed sample for accurate species identification.

生物学家强调收集未扰动样本对于准确物种识别的重要性。

2.To preserve the integrity of the study, we must ensure that the undisturbed sample is not contaminated.

为了保持研究的完整性，我们必须确保未扰动样本不被污染。

3.The geologist collected an undisturbed sample from the core drill to analyze the soil layers.

地质学家从岩心钻探中收集了一个未扰动样本以分析土壤层。

4.In order to assess the environmental impact, we need an undisturbed sample of the ecosystem.

为了评估环境影响，我们需要一个生态系统的未扰动样本。

5.An undisturbed sample is crucial for understanding the natural conditions of the habitat.

一个未扰动样本对于理解栖息地的自然条件至关重要。

作文

In the field of scientific research, particularly in geology and environmental science, the concept of an undisturbed sample plays a crucial role in obtaining accurate data. An undisturbed sample refers to a portion of soil, rock, or sediment that has been collected without altering its natural state. This means that the physical and chemical properties of the material remain intact, allowing researchers to analyze it in a way that reflects its original conditions. The importance of collecting undisturbed samples cannot be overstated, as any disturbance can lead to misleading results and conclusions.When scientists conduct studies on soil composition, for instance, they often need to understand how different layers of soil interact with one another. By using an undisturbed sample, they can investigate the stratification of soil layers and the presence of various minerals and organic matter without the interference that occurs when soil is disturbed. This is particularly important in agricultural studies, where the health of the soil directly impacts crop yields. If researchers were to collect disturbed samples, they might overlook critical factors such as moisture retention and nutrient availability that are vital for plant growth.Moreover, in environmental assessments, undisturbed samples allow scientists to evaluate the impact of human activities on ecosystems. For example, when assessing the effects of pollution, researchers can compare undisturbed samples from areas that have not been affected by industrial activities to those from polluted sites. This comparison can provide insights into how contaminants migrate through soil and water systems, helping to develop strategies for remediation.The process of collecting undisturbed samples requires specialized tools and techniques. Core sampling is one common method used to extract these samples. A core sampler is a cylindrical device that penetrates the ground, capturing a vertical column of material. This method minimizes disturbance and preserves the natural layering of the soil or rock. Once extracted, the undisturbed sample is carefully sealed and transported to a laboratory for analysis. Here, scientists can conduct various tests, including chemical analyses and physical property measurements, to gain a deeper understanding of the material's characteristics.In conclusion, the significance of undisturbed samples in scientific research cannot be ignored. They provide invaluable insights into the natural world, enabling researchers to make informed decisions based on accurate data. Whether studying soil health, assessing environmental impacts, or exploring geological formations, the integrity of the undisturbed sample is paramount. As we continue to navigate challenges related to agriculture, pollution, and resource management, the reliance on undisturbed samples will only grow, underscoring their essential role in advancing our understanding of the environment and ensuring sustainable practices for the future.

在科学研究领域，特别是在地质学和环境科学中，未扰动样本的概念在获取准确数据方面起着至关重要的作用。未扰动样本指的是在不改变其自然状态的情况下收集的土壤、岩石或沉积物的一部分。这意味着材料的物理和化学特性保持不变，使研究人员能够以反映其原始条件的方式进行分析。收集未扰动样本的重要性不容小觑，因为任何干扰都可能导致误导性的结果和结论。例如，当科学家进行土壤成分研究时，他们通常需要了解不同土层之间的相互作用。通过使用未扰动样本，他们可以研究土层的分层及各种矿物和有机物的存在，而不受土壤扰动所带来的干扰。这在农业研究中尤为重要，因为土壤的健康直接影响作物产量。如果研究人员收集的是扰动样本，他们可能会忽视对植物生长至关重要的因素，例如水分保持和养分可用性。此外，在环境评估中，未扰动样本使科学家能够评估人类活动对生态系统的影响。例如，在评估污染影响时，研究人员可以比较未受到工业活动影响的区域的未扰动样本与污染区域的样本。这种比较可以提供有关污染物如何在土壤和水系统中迁移的见解，从而帮助制定修复策略。收集未扰动样本的过程需要专业的工具和技术。核心取样是一种常用的方法，用于提取这些样本。核心取样器是一种圆柱形设备，可以穿透地面，捕获一列垂直的材料。这种方法最大限度地减少了干扰，并保持土壤或岩石的自然分层。一旦提取，未扰动样本被小心密封并运输到实验室进行分析。在这里，科学家可以进行各种测试，包括化学分析和物理特性测量，以更深入地了解材料的特征。总之，未扰动样本在科学研究中的重要性不容忽视。它们提供了对自然世界的宝贵见解，使研究人员能够根据准确的数据做出明智的决策。无论是研究土壤健康、评估环境影响还是探索地质构造，未扰动样本的完整性都是至关重要的。随着我们继续应对与农业、污染和资源管理相关的挑战，对未扰动样本的依赖只会增加，突显出它们在推动我们对环境的理解和确保可持续实践中的基本作用。