erosivity

简明释义

英[ˌɛrəʊˈzɪvɪti]美[ˌɛrəˈzɪvɪti]

侵蚀性

磨蚀程度

英英释义

单词用法

同义词

反义词

例句

1.Its erosivity is usually estimated by the product of rain kinetic energy times the biggest rain density during a certain period, and also, can be determined by the daily rainfall amount.

降雨是影响土壤侵蚀的主要因素，降雨侵蚀力通常用降雨动能和一段时间的最大雨强的乘积表示，简化的计算也可用日降雨量估算。

2.Rainfall erosivity is a potential capacity of soil erosion by rainfall.

降雨侵蚀力是降雨引起土壤侵蚀的潜在能力。

3.The rainfall erosivity can suggest the potential effect of rainfall on soil erosion. It is necessary to develop the water erosion model.

降雨侵蚀力反映了降雨对土壤侵蚀影响的潜在能力，它是建立土壤水蚀预报模型的基础。

4.Different scholars put forward different index for rainfall erosivity on the Loess Plateau.

降雨侵蚀力指标就黄土高原，不同的学者提出不同的指标。

5.The mostly factor effecting of the soil erosion were hypo-rainfall, hypo-rainfall intensity, rainfall kinetic energy and rainfall erosivity.

影响坡面土壤侵蚀的主要因子有次降雨量、雨强、降雨动能和降雨侵蚀力。

6.The percentage table of rainfall erosivity for a half month period was used to calculate soil erodibility and vegetation coverage factors.

半月降雨侵蚀力占年侵蚀力的累积频率表，为估算土壤侵蚀方程中土壤可蚀性因子和植被覆盖—管理因子提供了基础。

7.The study of rainfall patterns helps us understand the erosivity 侵蚀性 of different regions.

研究降雨模式帮助我们理解不同地区的erosivity 侵蚀性。

8.Farmers need to consider the erosivity 侵蚀性 of their fields when planning crop rotations.

农民在规划轮作时需要考虑他们田地的erosivity 侵蚀性。

9.High erosivity 侵蚀性 levels can lead to significant soil loss in hilly areas.

高erosivity 侵蚀性水平可能导致丘陵地区显著的土壤流失。

10.The erosivity 侵蚀性 of a storm can be assessed by its intensity and duration.

暴风雨的erosivity 侵蚀性可以通过其强度和持续时间来评估。

11.Soil conservation practices are essential in areas with high erosivity 侵蚀性.

在erosivity 侵蚀性高的地区，土壤保护措施是必不可少的。

作文

Erosion is a natural process that shapes our landscapes, but its impact can be significantly influenced by various factors. One of the most crucial concepts in understanding erosion is erosivity, which refers to the capacity of rainfall to cause soil erosion. High erosivity indicates that rainfall is intense enough to dislodge soil particles and contribute to their transport, leading to potential land degradation. In this essay, I will explore the factors that affect erosivity, its consequences on agriculture and the environment, and ways to mitigate its effects. Rainfall characteristics play a pivotal role in determining erosivity. The intensity and duration of rainfall events are key indicators. For instance, short, heavy downpours are more erosive than long, gentle rains. This is because intense rainfall can overwhelm the soil's infiltration capacity, causing surface runoff that carries away soil particles. Moreover, the type of precipitation—whether it is rain, snowmelt, or hail—can also influence erosivity. Understanding these dynamics is essential for predicting erosion risk in different regions. Another factor that contributes to erosivity is land use. Agricultural practices, urban development, and deforestation can alter the landscape's ability to absorb rainfall. For example, plowed fields are often more susceptible to erosion due to the lack of vegetation cover, which normally protects the soil. Similarly, urban areas with impervious surfaces, such as roads and buildings, increase runoff and subsequently erosivity. The relationship between land use and erosion highlights the importance of sustainable practices to minimize soil loss. The consequences of high erosivity extend beyond mere soil loss. Erosion can lead to decreased agricultural productivity, as nutrient-rich topsoil is washed away, leaving behind less fertile subsoil. This can have dire implications for food security, especially in regions that rely heavily on agriculture. Furthermore, eroded soil can clog waterways, leading to sedimentation that affects aquatic ecosystems. This disruption can harm fish populations and other wildlife, demonstrating the interconnectedness of terrestrial and aquatic environments. To mitigate the effects of erosivity, several strategies can be employed. First, implementing soil conservation techniques, such as contour farming, terracing, and cover cropping, can reduce runoff and enhance soil structure. These practices help maintain soil integrity and reduce the likelihood of erosion. Additionally, reforestation and afforestation efforts can stabilize soils and decrease erosivity by increasing vegetation cover, which absorbs rainfall and reduces surface runoff. Education and awareness are also vital in addressing erosivity. Farmers, landowners, and policymakers must understand the importance of managing land wisely to combat erosion effectively. By promoting sustainable land management practices, we can protect our soils and ensure that they remain productive for future generations. In conclusion, erosivity is a critical factor in the erosion process, influenced by rainfall characteristics and land use practices. Its implications for agriculture and the environment are significant, necessitating proactive measures to mitigate its effects. By adopting sustainable practices and educating stakeholders, we can safeguard our soils and maintain the health of our ecosystems. Understanding and addressing erosivity is not just an environmental concern; it is essential for ensuring food security and preserving natural resources for the future.

侵蚀是塑造我们景观的自然过程，但其影响可能受到多种因素的显著影响。理解侵蚀的一个关键概念是erosivity，即降雨导致土壤侵蚀的能力。高erosivity表明降雨强度足以解除土壤颗粒并促进其运输，导致潜在的土地退化。在这篇文章中，我将探讨影响erosivity的因素、其对农业和环境的后果，以及减轻其影响的方法。 降雨特征在决定erosivity方面发挥着关键作用。降雨事件的强度和持续时间是关键指标。例如，短时间内的大雨比长时间的小雨更具侵蚀性。这是因为强降雨会超过土壤的入渗能力，导致表面径流，带走土壤颗粒。此外，降水类型——无论是雨、融雪还是冰雹——也会影响erosivity。理解这些动态对于预测不同地区的侵蚀风险至关重要。 另一个影响erosivity的因素是土地使用。农业实践、城市开发和森林砍伐可以改变景观吸收降雨的能力。例如，耕作的田地由于缺乏植被覆盖，通常更容易受到侵蚀。同样，城市地区的非渗透表面，如道路和建筑物，会增加径流，从而增加erosivity。土地使用与侵蚀之间的关系突显了可持续实践的重要性，以最小化土壤损失。 高erosivity的后果不仅仅是土壤损失。侵蚀可能导致农业生产力下降，因为富含营养的表层土壤被冲走，留下的则是较少肥沃的底土。这对食品安全有严重影响，特别是在高度依赖农业的地区。此外，被侵蚀的土壤可能会堵塞水道，导致沉积，影响水生生态系统。这种破坏可能会伤害鱼类种群和其他野生动物，展示了陆地和水域环境之间的相互联系。 为了减轻erosivity的影响，可以采用几种策略。首先，实施土壤保护技术，如等高线耕作、梯田和覆盖作物，可以减少径流并增强土壤结构。这些做法有助于维持土壤完整性，减少侵蚀的可能性。此外，重新造林和植树造林的努力可以稳定土壤，减少erosivity，因为它们增加了植被覆盖，吸收降雨并减少表面径流。 教育和意识在应对erosivity方面也至关重要。农民、土地所有者和政策制定者必须了解明智管理土地的重要性，以有效应对侵蚀。通过推广可持续土地管理实践，我们可以保护我们的土壤，并确保它们在未来仍然具有生产力。 总之，erosivity是侵蚀过程中的一个关键因素，受降雨特征和土地使用实践的影响。其对农业和环境的影响是显著的，迫切需要采取积极措施来减轻其影响。通过采用可持续的做法和教育利益相关者，我们可以保护我们的土壤，维护生态系统的健康。理解和应对erosivity不仅是环境问题；它对于确保食品安全和保护未来的自然资源至关重要。