annual ring

简明释义

1. 年轮; 2. 年生长轮;

英英释义

例句

1.Dendrochronology is the study of annual rings to date events and environmental changes.

树轮年代学是研究年轮以确定事件和环境变化的学科。

2.Scientists can determine the age of a tree by counting its annual rings.

科学家可以通过数树的年轮来确定树的年龄。

3.The thickness of the annual rings can reveal periods of drought or abundant rainfall.

每个年轮的厚度可以揭示干旱或丰沛降雨的时期。

4.A tree with many annual rings is often older and may have experienced various environmental changes.

有许多年轮的树通常较老，可能经历了各种环境变化。

5.The width of each annual ring indicates the growth conditions of the tree during that year.

每个年轮的宽度表示树在那一年生长的条件。

作文

The study of trees and their growth patterns can reveal much about the environment in which they thrive. One fascinating aspect of tree biology is the formation of the annual ring, which serves as a record of a tree's life and the conditions it has experienced over the years. Each annual ring represents one year of growth, and by examining these rings, scientists can gather valuable information about climate changes, ecological shifts, and even historical events that have impacted the tree's surroundings.Trees grow by adding new layers of cells each year, which form concentric circles known as annual rings. In temperate climates, where seasons vary significantly, the growth rate of trees fluctuates throughout the year. During spring and summer, when conditions are ideal for growth, trees produce wider rings. Conversely, during autumn and winter, when growth slows down due to colder temperatures and less sunlight, the rings become narrower. This variation in width allows researchers to determine not only the age of the tree but also the environmental conditions during each year of its life.For instance, a particularly wide annual ring might indicate a year of abundant rainfall and favorable temperatures, while a narrow ring could suggest drought or other stress factors. By analyzing a series of annual rings, dendrochronologists—scientists who study tree rings—can reconstruct past climate conditions and even correlate them with historical events, such as periods of famine or economic prosperity.Moreover, the study of annual rings extends beyond climate science. It also plays a crucial role in understanding forest ecology and management. By knowing how trees respond to environmental changes, forest managers can make informed decisions about conservation efforts and sustainable practices. For example, if a region experiences a significant increase in tree mortality due to climate change, understanding the growth patterns indicated by annual rings can help managers devise strategies to protect remaining trees and promote healthy regeneration.In addition to their scientific value, annual rings also hold aesthetic and cultural significance. Many artisans and craftspeople use the unique patterns of annual rings in woodworking, creating beautiful furniture and decorative items that showcase the natural beauty of wood. The story told by each annual ring can evoke a sense of connection to nature and the passage of time, reminding us of the resilience and adaptability of life.In conclusion, the annual ring is more than just a marker of a tree's age; it is a window into the past, offering insights into environmental conditions and the intricate relationships within ecosystems. Understanding annual rings enriches our appreciation for nature and informs our efforts to sustain it. As we face increasingly complex environmental challenges, the knowledge gained from studying annual rings will be invaluable in guiding our actions toward a more sustainable future.

树木及其生长模式的研究可以揭示出它们所生存环境的许多信息。树木生物学中一个引人入胜的方面是年轮的形成，它作为树木生命及其经历过的条件的记录。每个年轮代表一年的生长，通过检查这些年轮，科学家们可以收集到有关气候变化、生态转变，甚至影响树木周围环境的历史事件的宝贵信息。树木通过每年增加新的细胞层来生长，这些细胞层形成同心圆圈，也就是我们所说的年轮。在温带气候中，季节变化显著，树木的生长速率在一年中会有所波动。在春天和夏天，当生长条件理想时，树木会产生较宽的年轮。相反，在秋天和冬天，由于气温降低和阳光减少，生长速度减缓，年轮变得更窄。这种宽度的变化使研究人员能够确定树木的年龄，同时也能够了解每一年生活中的环境条件。例如，一个特别宽的年轮可能表示一个丰沛降雨和适宜温度的年份，而一个狭窄的年轮则可能暗示干旱或其他压力因素。通过分析一系列的年轮，树木年轮学家（研究树木年轮的科学家）可以重建过去的气候条件，甚至将其与历史事件相联系，例如饥荒或经济繁荣的时期。此外，年轮的研究不仅限于气候科学。它在理解森林生态学和管理中也发挥着重要作用。通过了解树木如何应对环境变化，森林管理者可以做出明智的决定，以保护和可持续地利用森林资源。例如，如果某个地区因气候变化而发生显著的树木死亡，了解年轮所指示的生长模式可以帮助管理者制定保护剩余树木和促进健康再生的策略。除了科学价值外，年轮在美学和文化上也具有重要意义。许多工匠和手艺人利用年轮独特的图案进行木工制作，创造出展示木材自然美的精美家具和装饰品。每个年轮所讲述的故事能够唤起人与自然之间的联系和时间流逝的感受，提醒我们生命的韧性和适应性。总之，年轮不仅仅是树木年龄的标志；它是通往过去的窗口，提供了对环境条件和生态系统内部复杂关系的洞察。理解年轮丰富了我们对自然的欣赏，并为我们维持自然提供了指导。当我们面临日益复杂的环境挑战时，从研究年轮中获得的知识将在引导我们朝着更可持续的未来的行动中发挥无价的作用。