aggradation

简明释义

英[ˌæɡrəˈdeɪʃən]美[ˌæɡrəˈdeɪʃən]

n. 沉积

英英释义

单词用法

同义词

反义词

例句

1.The cover is an important component of the sludge aggradation tank.

污泥沉积池罩是污泥沉积池的重要部件。

2.This paper reviews the forming reasons of extremely low permeability of tight sandstone gas reservoir, including congenital aggradation and acquired diagenesis.

论述了致密砂岩气藏特低渗形成的原因：即先天的沉积因素和后天的成岩作用等。

3.Traditionally, silicon cycling is thought to be mainly controlled by rock weathering, subsequent mineral dissolution, and final aggradation in waters.

传统认为硅的循环主要受岩石风化、矿物溶解和水体沉积的影响。

4.Many parameters, such as current density, time on and off, pulse frequence, can be interceded in pulse electrolysis. This offers a powerful means to control quality of layer and aggradation speed.

脉冲电解可以调解电流密度、 电流的通断时间、脉冲频率等多个参数，为控制金属沉积层的质量和沉积速度提供了有力的手段。

5.Accordingly, it is urgent and important to study the effect of different Tongguan riverbed elevations on aggradation and degradation as well as the flood elevation of the lower Weihe river.

因此，研究不同潼关高程对渭河下游冲淤及洪水位的影响具有迫切而重要的现实意义。

6.This paper dwells the concepts of retrogressive aggradation and the datum of erosion.

本文阐述了溯源淤积和侵蚀基准面的概念。

7.The paper deals with the imminent problems on the lower reaches of the Yellow River with respect to flood and ice run protection and retarding channel aggradation, among others.

本文论述了黄河下游当前急待解决的防洪、防凌以及减缓河道淤积等问题！

8.The superfine boron powder was coated by aggradation method with AP using methanol or acetone as the solvent.

采用沉积法，以甲醇、丙酮为溶剂，AP为主要原料，对超细硼粉进行包覆。

9.The river experienced significant aggradation 堆积作用 after heavy rainfall, causing the banks to widen.

在大雨后，河流经历了显著的堆积作用，导致河岸变宽。

10.Geologists study aggradation 堆积作用 to understand sediment transport in river systems.

地质学家研究堆积作用以了解河流系统中的沉积物运输。

11.The study revealed that aggradation 堆积作用 has increased due to upstream dam constructions.

研究表明，由于上游水坝的建设，堆积作用有所增加。

12.In coastal areas, aggradation 堆积作用 can lead to the formation of new land as sediments accumulate.

在沿海地区，堆积作用可能导致新土地的形成，因为沉积物不断积累。

13.The construction project was delayed due to unexpected aggradation 堆积作用 at the site.

由于现场意外的堆积作用，建设项目被延迟。

作文

Aggradation is a geological term that refers to the process of sediment accumulation in a particular area, leading to an increase in land elevation. This phenomenon commonly occurs in river deltas, floodplains, and coastal regions where sediments transported by water are deposited over time. Understanding aggradation (沉积作用) is crucial for various fields such as environmental science, civil engineering, and geography. In this essay, I will explore the significance of aggradation (沉积作用) in shaping landscapes, its impact on ecosystems, and its implications for human activities.The process of aggradation (沉积作用) is primarily driven by natural forces such as water flow, wind, and gravity. When rivers transport sediments from upstream areas, they eventually reach slower-moving waters where these particles settle. Over time, this accumulation leads to the formation of new landforms, such as bars, islands, and deltas. For instance, the Mississippi River Delta in the United States is a prime example of aggradation (沉积作用), where sediment deposition has created a rich and diverse ecosystem.One of the most significant impacts of aggradation (沉积作用) is its influence on local ecosystems. As sediments build up, they create new habitats for various plant and animal species. Wetlands formed through aggradation (沉积作用) serve as critical breeding grounds for fish and birds, while also providing essential services such as water filtration and flood control. The rich biodiversity found in these areas highlights the importance of understanding aggradation (沉积作用) and its role in maintaining ecological balance.However, aggradation (沉积作用) is not without its challenges, especially in the context of human activities. Urbanization, agriculture, and deforestation can alter natural sediment transport processes, leading to increased rates of aggradation (沉积作用) in some areas while causing erosion in others. For example, the construction of dams can trap sediments, preventing their downstream transport and resulting in reduced aggradation (沉积作用) in river deltas. This disruption can lead to habitat loss and increased vulnerability to flooding.Moreover, climate change poses additional threats to the dynamics of aggradation (沉积作用). Rising sea levels and altered precipitation patterns can affect sediment supply and transport, leading to unpredictable changes in landforms and ecosystems. Understanding these processes is vital for effective management and conservation strategies aimed at mitigating the impacts of climate change on vulnerable areas.In conclusion, aggradation (沉积作用) is a fundamental geological process that plays a crucial role in shaping our landscapes and supporting diverse ecosystems. Its effects are far-reaching, influencing everything from local biodiversity to human infrastructure. As we continue to face environmental challenges, it is essential to deepen our understanding of aggradation (沉积作用) and its implications for both natural and human systems. By doing so, we can better appreciate the intricate relationships between geology, ecology, and human activity, ultimately leading to more sustainable practices and policies that protect our planet for future generations.