base exchange capacity

简明释义

1. 盐基交换量; 2. 盐基交换能力;

英英释义

例句

1.The soil's base exchange capacity is crucial for determining its ability to retain nutrients.

土壤的基交换能力对于确定其保持养分的能力至关重要。

2.The base exchange capacity of this soil type is significantly lower than that of others.

这种土壤类型的基交换能力明显低于其他土壤类型。

3.A higher base exchange capacity indicates better nutrient retention in the soil.

较高的基交换能力表明土壤中的养分保持能力更好。

4.Agronomists often measure the base exchange capacity to assess soil fertility.

农学家通常测量基交换能力来评估土壤肥力。

5.Understanding the base exchange capacity can help in selecting appropriate fertilizers.

理解基交换能力可以帮助选择合适的肥料。

作文

The concept of base exchange capacity is crucial in understanding soil chemistry and its implications for agriculture. Essentially, base exchange capacity refers to the ability of soil to hold and exchange positively charged ions, known as cations. This property is vital because it influences nutrient availability for plants, soil fertility, and overall ecosystem health.To elaborate, soils contain various minerals that can release cations, such as calcium, magnesium, potassium, and sodium. These cations are essential for plant growth, as they play significant roles in physiological processes. The base exchange capacity determines how much of these essential nutrients can be retained in the soil and made available to plants. Soils with high base exchange capacity can store more nutrients, leading to healthier crops and better yields.Moreover, the base exchange capacity is influenced by several factors, including soil texture, organic matter content, and pH levels. For example, clayey soils typically exhibit higher base exchange capacity compared to sandy soils due to their larger surface area and ability to hold more water and nutrients. Organic matter also plays a pivotal role; it enhances base exchange capacity by providing additional sites for cation exchange and improving soil structure.Understanding the base exchange capacity of a particular soil type can help farmers make informed decisions about fertilization and soil management practices. For instance, if a soil has a low base exchange capacity, it might require more frequent applications of fertilizers to ensure that plants receive adequate nutrients. Conversely, soils with high base exchange capacity may retain nutrients more effectively, allowing for less frequent fertilization and potentially reducing costs.In addition to agricultural implications, the base exchange capacity also affects environmental sustainability. Soils with high base exchange capacity can mitigate the leaching of nutrients into groundwater, thus preventing water pollution. This characteristic is particularly important in regions where intensive agriculture is practiced, as it helps maintain water quality and protect aquatic ecosystems.Furthermore, the base exchange capacity can serve as an indicator of soil health. Healthy soils tend to have a balanced cation exchange capacity, which supports diverse microbial communities and promotes resilience against pests and diseases. Therefore, monitoring base exchange capacity can provide insights into the long-term sustainability of agricultural practices and the overall health of the ecosystem.In conclusion, the base exchange capacity is a fundamental property of soil that significantly impacts agricultural productivity, environmental health, and ecosystem sustainability. By understanding and managing this capacity, farmers can enhance soil fertility, optimize nutrient management, and contribute to sustainable agricultural practices. It is essential for researchers, agronomists, and farmers alike to recognize the importance of base exchange capacity in fostering a productive and sustainable agricultural landscape.

“基交换能力”这一概念在理解土壤化学及其对农业的影响时至关重要。基本上，基交换能力是指土壤保持和交换阳离子（即带正电荷的离子）的能力。这一特性至关重要，因为它影响植物的养分可用性、土壤肥力和整体生态系统健康。进一步来说，土壤中含有多种矿物质，可以释放钙、镁、钾和钠等阳离子。这些阳离子对于植物生长至关重要，因为它们在生理过程中发挥着重要作用。基交换能力决定了这些必需养分能够在土壤中保留和提供给植物的数量。具有高基交换能力的土壤能够储存更多的养分，从而导致更健康的作物和更好的产量。此外，基交换能力还受到多个因素的影响，包括土壤质地、有机质含量和pH值。例如，粘土土壤通常表现出比沙土土壤更高的基交换能力，因为它们的表面积更大，能够保持更多的水分和养分。有机质也在其中起着关键作用；它通过提供额外的阳离子交换位点并改善土壤结构来增强基交换能力。了解特定土壤类型的基交换能力可以帮助农民做出明智的施肥和土壤管理决策。例如，如果土壤的基交换能力较低，可能需要更频繁地施用肥料，以确保植物获得足够的养分。相反，具有高基交换能力的土壤能够更有效地保留养分，从而允许减少施肥频率，潜在地降低成本。除了农业影响，基交换能力还影响环境可持续性。具有高基交换能力的土壤可以减轻养分渗漏到地下水中的现象，从而防止水污染。这一特性在进行集约农业的地区尤为重要，因为它有助于维持水质并保护水生生态系统。此外，基交换能力还可以作为土壤健康的指标。健康的土壤往往具有平衡的阳离子交换能力，支持多样的微生物群落，并促进抵御害虫和疾病的韧性。因此，监测基交换能力可以为农业实践的长期可持续性和生态系统的整体健康提供见解。总之，基交换能力是土壤的一个基本特性，对农业生产力、环境健康和生态系统可持续性有显著影响。通过理解和管理这一能力，农民可以增强土壤肥力，优化养分管理，并促进可持续的农业实践。研究人员、农艺师和农民都必须认识到基交换能力在促进生产性和可持续农业景观中的重要性。