calcareous

简明释义

英[kælˈkeərɪəs]美[kælˈkerɪəs]

adj. 钙质的，石灰质的

n. 钙化软骨

英英释义

单词用法

同义词

反义词

例句

1.Protected surfaces can build up a layer of off white calcareous deposit which will be difficult to remove.

受保护的表面能够形成一层灰白色的钙质沉着，这是很难去掉的。

2.All these indicate that calcareous algae can be an important source material for natural gases.

这表明钙质藻类可能是天然气的一种重要母质来源。

3.The rule of salinity accumulating, ion constitution and pH in calcareous soil area greenhouse are opened out.

揭示了石灰性土壤地区温室土壤盐分积累、离子组成及酸碱度变化规律。

4.Calcareous sediments distributed in the calcium carbonate dissolution belt above CCD boundary.

钙质沉积物分布在碳酸钙补偿深度（CCD）界面以浅区。

5.Some 18 kinds of calcareous agricultural soils sampled were used to study phosphorus sorption characteristics.

选用18种性质不同的石灰性土壤，研究磷素吸附特性。

6.Ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell.

卵形身体的十肢头足类动物，窄的鳍和身体一样长，钙质内壳大。

7.The calcareous rock formations in the region are a popular site for geological studies.

该地区的石灰质岩层是地质研究的热门地点。

8.The soil in this area is highly calcareous, which can be beneficial for certain crops.

该地区的土壤含有大量的石灰质，这对某些作物是有益的。

9.The calcareous deposits found in caves can provide insights into past climate conditions.

洞穴中发现的石灰质沉积物可以提供有关过去气候条件的见解。

10.Coral reefs are often built from calcareous organisms, which contribute to their structure.

珊瑚礁通常是由石灰质生物构建的，这些生物为其结构做出了贡献。

11.Many freshwater lakes have calcareous sediments that affect their water chemistry.

许多淡水湖泊有石灰质沉积物，这影响了它们的水化学。

作文

The natural world is full of fascinating materials, each with unique properties that contribute to the diversity of ecosystems. One such material is limestone, which is a type of rock primarily composed of calcium carbonate. This rock is often described as calcareous (钙质的) due to its high calcium content. The significance of calcareous (钙质的) materials extends beyond geology; they play a crucial role in various biological and environmental processes.Limestone forms through the accumulation of organic remains, such as shells and coral, over millions of years. This process not only creates stunning geological formations but also provides essential habitats for many marine organisms. The calcareous (钙质的) nature of these rocks means they can influence the pH of surrounding waters, making them more alkaline. This change in pH can affect the types of organisms that thrive in these environments, promoting biodiversity.In agriculture, calcareous (钙质的) soils are often considered beneficial. These soils tend to be rich in nutrients, particularly calcium, which is vital for plant growth. Farmers frequently seek to enhance their soil’s calcareous (钙质的) properties by adding lime, which helps to neutralize acidic soils, improve drainage, and encourage healthy root development. Consequently, crops grown in calcareous (钙质的) soils often exhibit higher yields and better quality.Moreover, the presence of calcareous (钙质的) materials can significantly impact water systems. In regions where limestone is prevalent, water often becomes mineral-rich, leading to the formation of unique aquatic ecosystems. For instance, lakes and rivers that flow over calcareous (钙质的) substrates may support diverse populations of fish and other wildlife. The hardness of the water in these areas can also influence recreational activities, such as fishing and swimming, attracting tourists and boosting local economies.However, the extraction and use of calcareous (钙质的) materials also raise environmental concerns. Quarrying limestone for construction can lead to habitat destruction and increased sedimentation in nearby waterways. This sedimentation can smother aquatic habitats and disrupt the delicate balance of ecosystems. Therefore, it is essential to consider sustainable practices when utilizing calcareous (钙质的) resources to minimize ecological impacts.In conclusion, the term calcareous (钙质的) encompasses a wide range of implications across different fields, from geology and biology to agriculture and environmental science. Understanding the significance of calcareous (钙质的) materials allows us to appreciate their role in shaping our planet's landscapes and ecosystems. As we continue to explore and utilize these resources, it is crucial to adopt sustainable practices that protect our environment while benefiting from the unique properties of calcareous (钙质的) materials.