Coming out of the two villages, Qi Zheng drove alone to inspect the saline-alkali land that stretched to the sea.

The flat and endless barren beach terrain looks like a water town, but it is not fertile land, close to the sea, and the watery fields are sparsely stretched with low weeds.

This is a melancholy barren land: due to poor drainage conditions and seawater flooding, the ecological environment is very fragile, the land salinization phenomenon is serious, and the phenomenon of sporadic development and abandonment of planting can be seen everywhere.

This is also a poor land with lagging economic development: due to the lack of funds for water conservancy construction and the lack of a unified development plan for saline-alkali land, the local agricultural and rural economic development has been seriously restricted, and it is a well-known poor area along the coast of the two provinces.

Saline-alkali land refers to the land where the soil contains saline-alkali components (the content is generally greater than 0.1%), which has an inhibiting effect on plant growth.

According to the soil salinity, saline-alkali land can be divided into mild, moderate and severe saline-alkali land. In general, the soil salt content of mild saline-alkali land is less than 0.3%, moderate is 0.3%-0.6%, and severe is higher than 0.6%.

Generally speaking, the emergence rate of mild saline-alkali land can still reach 70%-80%, and the utilization value is high, and agriculture can be moderately developed.

If it is above moderate, the emergence rate may be less than 50%, and even no grass will grow in more serious cases.

The root cause of the formation of saline-alkali soils is poor moisture status.

As the source of all things, the changes of water determine the fate of one land and one person.

The salt in saline soil, on the other hand, is brought by the movement of water and mainly by the movement of groundwater.

Generally speaking, salt collects with surface and underground runoff from high to low, and salt accumulation gradually increases from high to low.

This is located in the coastal area, with poor drainage conditions, and is affected by the high tide erosion, which makes the accumulation of salt more serious.

Land subsidence can be caused by a lack of groundwater, best exemplified in Jakarta, the capital of Indonesia. It was like sitting in a balloon that was deflating, slowly sinking every year, so much so that it finally had to move the capital with tears in its eyes.

But too much groundwater is not necessarily a good thing.

There is a critical depth at which the water table is buried.

The shallower the water table is buried, the easier it is for groundwater to rise to the surface through the soil capillaries (which can be seen as the capillaries of the soil), and the more water evaporated and lost, the more salt is left to the topsoil. Especially when the salinity of groundwater is high, the soil salt accumulation is more serious.

According to Zhang, the head of Luokou Village, in the past, they still used flood irrigation when watering, or only irrigated but not drained, so that the groundwater level rose faster and salt accumulated, which is nothing more than adding fuel to the fire, and such unscientific irrigation will turn even good land into saline-alkali land, let alone the originally salinized land.

Qi Zheng got out of the car, found no man's land, set up a formation, and explored.

"Ten thousand thoughts return to the first (second-order) trigger, the five systems are balanced, and the range: a radius of one hundred kilometers. Effect: Calm and calm. Creatures are in the array, which can make the soul pure, the mind condensed, and stealth. ”

The divine consciousness was condensed by the spirit array, and the aquifer was extended to scan.

It can be clearly "seen" that groundwater is stratified.

There are aquifers, there are aquifers. Surface diving and deep confined water are separated by an aquifer.

The groundwater diving layer within a radius of 100 miles is very shallow, and most of the water layer is not as light as normal fresh water, and the feedback to the divine mind feels a little stagnant.

This is the reason for the high salinity of groundwater, which is simply the high salinity content.

Therefore, the water from the shallow well here is bitter and brackish, and only by drilling a deep well can we get fresh water with a normal taste.

Extending the consciousness to the junction of land and sea, we can "see" that seawater slowly seeps through the soil into the freshwater layer, increasing the salinity of the groundwater, causing this seaside land to be salted all the time like bacon floating on salt water.

A piece of old bacon, it is difficult to grow hair - this is how the barren land is formed.

Retracting his divine sense, Qi Zheng fell into thought.

If you want this "old bacon" to grow "green hair", you need to improve its soil composition.

In order to improve the composition of the soil, the root cause is to change the composition of groundwater, especially the groundwater in the phreatic layer.

Qi Zheng first considered the spirit array he currently mastered.

After combing it silently in my heart, I found that the "Bibo Qinghua Array" was the most applicable.

"Bibo Qinghua array, main wood water system, effect: clear water, drainage. It can make the spring water clean and drain the water. ”

The effect of "clean water" can filter the high salinity of groundwater and balance the minerals in the water, while the effect of "drainage" can adjust the depth of groundwater level and solve the hidden danger of salt accumulation.

But it's no better than the brewery's water source, which is fresh, but it just removes impurities and balances minerals, and the effect is fast.

And the groundwater with high salinity here is not an overnight thing.

It takes a long time to remove the excess salt content in the water to either sink down to the deep layers or to divert it to the sea.

What's more, even if it can be effective immediately, Qi Zheng doesn't dare to operate like this.

If you come around, the saline-alkali land will become fertile land, what kind of suffocation operation is this? Is it eager to be inspected by the water meter?

So in the end, it's a two-pronged approach.

The saline-alkali land improvement technology is used to treat the symptoms, and the spiritual array is used to treat the root cause.

With a solution, Qi Zheng's heart was relaxed.

Looking at the spirit stones in the array ring that didn't seem to have been reduced much, he was full of confidence - the problem that could be solved with the spirit array had never been a problem.

Look at the surrounding areas of the two villages, how much saline-alkali land there is, you can't see the edge, and you can't see such a big territory.

Qi Zheng, like the old farmers, hopes that his family can have more land.

In the case of resource constraints, open up new resource areas, and use scientific and technological (spirit array) means to benefit from barren land, which is exactly the pursuit and dream of Qi Zheng.

Saline-alkali land improvement, in the eyes of ordinary people, is that the family can grow a few acres of land. And from a high vantage point, this is related to the issue of food security.

Saline-alkali land is an important land reserve resource in our country.

In the context of the relative reduction of global land resources, the governance, development and utilization of salinized land have gradually attracted widespread attention.

The state will start in 08 and regard the governance and transformation of saline-alkali land as a major measure to ensure national food security from a strategic height.

However, at present, due to the lack of capital and technical strength, it is difficult to expand the scale of saline-alkali land treatment and transformation. In particular, in places with poor economic conditions, the investment capacity is limited, the willingness to invest is not high, and there are many obstacles.

The saline-alkali land renovation project is a huge systematic project, with large investment, large time span, strong policy and wide coverage...... As a social force and business entity, Jiagu has the ability to invest in the management of saline-alkali land, and is naturally not afraid to invest.

However, the legal risks and lack of policy support are real.

The contracting policy of saline-alkali wasteland may not be perfect, for example, there is no clear provision for the transfer policy of contracted land that individuals are unable to manage, and there is no legal basis for determining the ownership of saline-alkali land after treatment. In addition, there is a lack of preferential policies to encourage enterprises and farmers to improve saline-alkali land......

Qi Zheng did not want to make wedding clothes for others again, so he would not act rashly without a clear guarantee with the government.

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