pedogenesis

简明释义

英[ˌpɛdəˈdʒɛnɪsɪs]美[ˌpɛdəˈdʒɛnɪsɪs]

n. [无脊椎] 幼体生殖；成土作用；土壤发生

英英释义

单词用法

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例句

1.It was observed that the magnetic susceptibility profile in soils related to the latitude, magnetic base of the parent materials, climatic condition, soil pedogenesis and ripening.

土壤磁化率剖面受纬度、土壤母质磁性本底、气候条件、土壤熟化度，及发育度、土壤颗粒等因子的影响。

2.It was observed that the magnetic susceptibility profile in soils related to the latitude, magnetic base of the parent materials, climatic condition, soil pedogenesis and ripening.

土壤磁化率剖面受纬度、土壤母质磁性本底、气候条件、土壤熟化度，及发育度、土壤颗粒等因子的影响。

3.Weathering and pedogenesis of rocks are important sources of mineral elements for ecological systems, and key processes of global biogeochemical cycling of mineral elements.

岩石风化成土作用是生态系统矿质元素的重要来源，也是全球矿质元素生物地球化学循环的重要环节。

4.But, low sedimentary rate in many profiles, especially in S1, and following strong pedogenesis and eluviation would have effect on those climate records.

然而，黄土高原中部大多数剖面由于沉积速率较低(特别是S1地层)，加上后期强烈的成壤作用和淋溶作用可能影响其气候记录。

5.It's found that there is either difference or corresponding relations between soil taxonomy and pedogenesis classification.

发生分类与系统分类结果之间既存在着差异，也有一定的对应关系。

6.Neoteny is also known as pedogenesis or paedogenesis.

性早熟也称为成土作用或幼体生殖。

7.The study of pedogenesis is crucial for understanding soil formation processes.

研究土壤生成对于理解土壤形成过程至关重要。

8.Factors influencing pedogenesis include climate, organisms, and parent material.

影响土壤生成的因素包括气候、生物和母质。

9.In agricultural practices, knowledge of pedogenesis helps in soil management.

在农业实践中，了解土壤生成有助于土壤管理。

10.The process of pedogenesis can take thousands of years to develop.

土壤生成的过程可能需要数千年才能发展。

11.Research on pedogenesis can inform conservation efforts in degraded lands.

对土壤生成的研究可以为退化土地的保护工作提供信息。

作文

Soil is one of the most vital resources on our planet, serving as the foundation for agriculture, ecosystems, and even urban development. The process by which soil forms is known as pedogenesis, which refers to the development of soil through various physical, chemical, and biological processes. Understanding pedogenesis is essential for sustainable land management and environmental conservation. In this essay, we will explore the factors that influence pedogenesis, the stages involved in soil formation, and the implications of these processes for agriculture and ecology. The primary factors influencing pedogenesis include parent material, climate, topography, organisms, and time. Parent material refers to the underlying geological material from which soil develops. This can include bedrock, sediment, or organic materials. The mineral composition of the parent material significantly affects the nutrient availability and overall fertility of the soil. For example, soils derived from limestone tend to be rich in calcium, while those from granite may be more acidic and nutrient-poor. Climate plays a crucial role in pedogenesis as well. Temperature and precipitation patterns influence the rate of weathering, organic matter decomposition, and leaching of minerals. In warmer, wetter climates, soils tend to develop more rapidly due to increased biological activity and chemical reactions. Conversely, in arid regions, soil formation is much slower, often resulting in thin, less fertile soils. Topography also impacts pedogenesis. The slope of the land can affect water drainage and erosion rates, which in turn influence soil depth and composition. For instance, soils on steep slopes may experience significant erosion, leading to thinner profiles, while soils in valleys may accumulate more organic matter and nutrients. Organisms, including plants, animals, and microorganisms, play a critical role in pedogenesis as they contribute to the breakdown of organic matter and the cycling of nutrients. Plant roots help to stabilize the soil and create channels for air and water movement, while decomposers like fungi and bacteria break down organic material, enriching the soil with nutrients. Over time, these biological processes lead to the formation of distinct soil horizons, each with its unique characteristics. The process of pedogenesis occurs in stages. Initially, weathering breaks down the parent material into smaller particles, while organic matter begins to accumulate from decaying plant and animal material. As layers of soil develop, different horizons form, including the topsoil rich in organic matter, the subsoil with accumulated minerals, and the bedrock or unweathered material below. Each horizon has distinct properties that influence its function and suitability for various uses. The implications of pedogenesis for agriculture and ecology are profound. Understanding how soils form and evolve allows farmers to make informed decisions about crop selection, fertilization, and land management practices. For example, recognizing the importance of organic matter in soil health can lead to practices such as cover cropping and reduced tillage, which enhance soil structure and fertility. In conclusion, pedogenesis is a complex and dynamic process that shapes the soils we rely on for food production and ecological balance. By studying the factors and stages of pedogenesis, we can better appreciate the intricate relationships between soil, plants, and the environment. This knowledge is crucial for developing sustainable practices that protect our soils and ensure their productivity for future generations.

土壤是我们星球上最重要的资源之一，作为农业、生态系统甚至城市发展的基础。土壤形成的过程被称为土壤形成，它指的是通过各种物理、化学和生物过程发展土壤。理解土壤形成对于可持续土地管理和环境保护至关重要。在这篇文章中，我们将探讨影响土壤形成的因素、土壤形成的阶段，以及这些过程对农业和生态的影响。 影响土壤形成的主要因素包括母质、气候、地形、生物和时间。母质是指土壤发展的基础地质材料。这可以包括基岩、沉积物或有机材料。母质的矿物成分显著影响土壤的养分可用性和整体肥力。例如，来自石灰岩的土壤往往富含钙，而来自花岗岩的土壤可能更酸性且营养贫乏。 气候在土壤形成中也起着至关重要的作用。温度和降水模式影响风化、土壤有机物分解和矿物淋溶的速率。在温暖潮湿的气候中，由于生物活动和化学反应增加，土壤通常会更快发展。相反，在干旱地区，土壤形成的速度要慢得多，通常导致薄而不肥沃的土壤。 地形也会影响土壤形成。土地的坡度会影响水的排放和侵蚀速率，这反过来又影响土壤深度和成分。例如，陡坡上的土壤可能经历显著的侵蚀，导致土壤剖面较薄，而山谷中的土壤可能积累更多的有机物和养分。 生物，包括植物、动物和微生物，在土壤形成中发挥着关键作用，因为它们有助于有机物的分解和养分的循环。植物根系有助于稳定土壤并为空气和水的流动创造通道，而真菌和细菌等分解者则分解有机物，丰富土壤中的养分。随着时间的推移，这些生物过程导致不同土壤层的形成，每一层都有其独特的特征。 土壤形成的过程分为几个阶段。最初，风化将母质分解成较小的颗粒，同时有机物开始从腐烂的植物和动物材料中积累。随着土壤层的发展，不同的土壤层形成，包括富含有机物的表土、积累矿物的亚土层以及下方的基岩或未风化材料。每个层次都有不同的特性，影响其功能和适合的用途。 土壤形成对农业和生态的影响是深远的。了解土壤如何形成和演变使农民能够就作物选择、施肥和土地管理实践做出明智的决策。例如，认识到有机物在土壤健康中的重要性可以促使采取覆盖作物和减少耕作等做法，从而提高土壤结构和肥力。 总之，土壤形成是一个复杂而动态的过程，塑造了我们依赖于食物生产和生态平衡的土壤。通过研究影响土壤形成的因素和阶段，我们可以更好地欣赏土壤、植物和环境之间的复杂关系。这一知识对于制定保护土壤并确保其未来生产力的可持续实践至关重要。