Sunny spring in March
The shore is green and the grass is long and the warblers fly
We are about to usher in a special holiday
"World Water Day", "China Water Tour"
March 22, 2022 is
30th World Water Day
March 22-28 is
The 35th China Water Week
this year
The United Nations has identified the theme of World Water Day as follows
Groundwater-Making the Invisible Visible
(Cherish groundwater, cherish hidden resources)
The theme of the "World Water Day" and "China Water Week" activities in mainland China is:
Promote the comprehensive treatment of groundwater over-exploitation and restore the ecological environment of rivers and lakes
Take you to perceive the groundwater
There is a kind of water,
We can't see or touch it.
Under the thick ground,
Hidden very deeply,
Affects every aspect of our lives,
We even use it every day,
It is
Mysterious groundwater.
it
Endowment
In the rocky void below the ground,
is an important part of water resources,
With a strong concealment,
Replenished with atmospheric precipitation and surface water.
Good water quality, widely distributed,
It is water for residents' livelihood, industrial production and irrigation of farmland
An important source of water.
Due to the special chemical composition
or a higher water temperature,
Yes
Medical, heat source
and raw materials for extracting useful elements.
It also plays an important role in maintaining the balance of ecosystems.
There are two kinds of outcrops,
Springs are natural,
Wells are artificial.
It is characterized by
Few suspended impurities, low turbidity,
Low content of organic matter and bacteria,
High salt content and high hardness.
According to the different characteristics
(Origin, aquifer properties, burial conditions, mineralization)
It can be divided into:
Infiltration of water, condensate, primary water and burial;
Pore water, fissure water, karst water;
Upper stagnant water, diving, pressurized water;
Fresh water, brackish water, brackish water, brine, brine.
Zhangjiashan Sizhu Cave Spring
Over-exploitation, water pollution, soil salinization,
Ground subsidence, karst collapse, sea intrusion
will affect groundwater to a certain extent,
Over-exploitation will cause more
Surface vegetation dryness, ecological degradation, soil erosion,
Serious ecological problems such as the shrinking of rivers and lakes.
Over-exploitation
Water pollution
it
On the mainland
uneven geographical distribution,
Nanfeng is lacking in the north.
Total water resources, population distribution,
the degree of economic development, the impact of mining conditions,
The urban water shortage is increasingly serious,
Per capita share of groundwater resources
Below the world average.
presently
Water transfer is solved
The spatial and temporal distribution of water resources on the mainland is uneven
Main measures;
Water conservation is the solution
An effective way to get water scarcity.
We rarely pay attention to groundwater,
It's more often than not
Flowing silently,
Guarding humanity.
But some of the wrong behavior of human beings
Makes it sick,
Send us a red distress signal.
Right now
We need to work together
To guard what we live on
Material basis.
Source: Shaanxi Water Conservancy Museum