Before reading this article, I sincerely invite you to click "Follow", which is not only convenient for you to discuss and share, but also brings you a different sense of participation, thank you for your support.
Water is found in the sea, lakes and rivers, as well as deep in the aquifers, and plays an important role in the survival of living things.
However, we may wonder why all the water on earth does not seep into the ground, after all, the earth has the property of absorbing water, and water is a substance that can be said to be pervasive, so there is no place where it cannot reach.
So why does water stay on the surface, rather than going deeper into the ground as the land goes deeper? Let's look at that. As we said earlier, water on Earth is pervasive.
It can penetrate into the underground layers and keep going down through the soil and rocks. However, not all surfaces on Earth are designed to fully absorb or store water, and some are even "drip-in".
From the perspective of water morphological characteristics, the permeability of water is closely related to the permeability of soil and rocks. Different types of soils and rocks have different permeability capabilities.
For example, clay contains a lot of fine particles and clay minerals, making it a good water-retaining material, and water is relatively less permeable, while sand is composed of larger particles and is more permeable.
In addition, the permeability of rocks also varies according to their type and morphology, such as sandstone has better permeability, while granite has less permeability. Therefore, the characteristics of the soil and rocks are an important limiting factor for water infiltration.
When you were in junior high school, everyone who studied geography knew what the hydrological cycle was, which is actually a very common and typical principle, the hydrological cycle refers to the process of water evaporating from the surface of the earth or being absorbed by plants and then returning to the earth's surface in the form of precipitation.
Precipitation on Earth is not evenly distributed, and the amount of rainfall varies from region to region and from season to season. In areas with higher rainfall, the soil may not be able to absorb more water, resulting in increased surface runoff.
Some of the water flows into rivers, lakes and oceans. This also explains why water scarcity is severe in arid regions, while areas with higher precipitation may be more prone to flooding.
The earth's surface has a variety of features, such as mountains, plateaus, and plains. These geomorphological features affect the infiltration and flow of water. Mountains often have steep slopes and less soil cover, resulting in a rapid flow of water and the formation of rivers.
The flat principle has more soil surface and is better able to absorb water. At the same time, there are lakes and swamps in some parts of the planet, which are able to store large amounts of water so that it does not seep directly into the aquifer.
Human activities also have an impact on the infiltration and distribution of water. Urbanization and agricultural development have left the land covered with cement, buildings and farmland, hindering the infiltration of water.
According to research, more than half of the Earth's groundwater resources have been affected by human activities, and further research is needed to solve the problem of the allocation of surface water resources.
At the same time, excessive groundwater extraction and large-scale irrigation have led to a reduction in groundwater resources. These human activities have altered the Earth's water cycle, which in turn has affected the distribution and infiltration of water.
So can you now understand why there are still large areas of ocean and freshwater resources on the earth's surface? In fact, it is inseparable from nature and humanity, and it is also closely related to human intervention.
Due to its unique nature and geography, water on Earth has formed a diverse distribution pattern of water resources. Whether it's from blazing volcanic activity, or through millions of years of climate change and geological upheavals.
Both the distribution and infiltration of water go through a long and complex process. But don't think that the earth's water resources are very abundant, and it doesn't matter if people can "pick" casually, in fact, no, people who usually watch international news know it.
On this huge earth, there are still many countries where people live in places with extreme lack of water resources, and even many people are dying of thirst, and some cities in China actually have water shortage problems.
Access to sufficient water resources is essential for the normal survival of hundreds of millions of life on Earth. Natural disasters such as droughts and floods not only threaten human lives, but also have a huge impact on the national and global economy.
Overall, land-use change, atmospheric precipitation, and the impact of surface water protected areas are all likely to affect the amount of these water sources. This can lead to errors in forecasts of global water demand.
This will affect the sustainable development of various sectors such as agriculture, energy and industry around the world. Never underestimate nature's counterattack, because if the planet is unable to respond to the depletion of water resources, the survival conditions of the next generation will be in jeopardy.
Therefore, we should also pay attention to the use of water resources in ordinary times, and know how to protect water resources, pay attention to the balance of the hydrological environment, and make scientific and rational use of water resources, so as to better maintain the precious water resources on the earth and protect our home on the earth.
Due to the rules of the platform, you will only be recognized as a fan if you have more interaction with me. If you like my articles, you can click "Follow" and receive the article push as soon as you become a fan.