And the groundwater level of the land under their feet is actually at a depth of 19 meters to 20 meters, which is really too big!

The water table is not static, for example, in a valley, where is the highest water table?

Needless to say, of course it's the lowest part of the valley, because the water table here is very likely to be above the surface, but if you ask, what about the water table in the mountains?

For example, if you dig a well on the plain, there may be water only a few meters above the ground, and if you dig a well on the top of the mountain, this number may become tens of meters. Pen ~ fun ~ pavilion www.biquge.info and in such a comparison, the groundwater level on the top of the mountain is obviously lower than the groundwater level on the plain.

But this mountain is very likely to be hundreds of meters high, what does that mean? It means that the position of the water table of this mountain is much higher than the position of the valley!

And it is precisely because of this reason that under the action of gravity, the water on the mountain is difficult to preserve, so it will slowly infiltrate down the mountain stream, which forms a small stream and river, so the higher the mountain, the more water is often scarce, and the more difficult it is for trees to grow.

Why are the pine trees on the Yellow Mountain so famous? Not only because they grow strangely, but also because they grow in an almost desperate location, which is not suitable for the growth of trees at all, and the fact that they can survive in this place is a miracle in itself, so everyone likes them and praises them, just as people will be praised for breaking records, and the creatures that have created miracles in the biological world are also worthy of people's memory and praise.

"No, this water level is too low, we will have a big problem getting water here, and with such a low water level, it will be very difficult for plants to survive, and their root system needs to grow at least four to five years to grow to such a deep ground!"

Ackerman shook his head, such a low water table was too unfriendly for their work, and it was tantamount to announcing the abortion of their plans.

Lin Quan nodded and said, "It's really too low, but it doesn't matter, the groundwater flow in the desert area should be relatively frequent, let's find a few more places to measure it." ”

Lin Quan didn't really care about the level of the groundwater, he had an artifact in his hand, so these things were nothing.

Hearing Lin Quan say this, Ackerman had no opinion, and a few people took advantage of the fact that other workers were still pulling the cart, carried tools and ran to several places, and then measured a lot of data.

In the end, everyone came to the conclusion that the groundwater level in this area is indeed relatively low, probably because there are no rivers here, no snow-capped mountains, and there is little rainfall, so there is very little groundwater here, but if you wait until the rainy season comes, the rainfall here should rise, and after the groundwater level in the north rises, it is very likely to rise.

So at Lin Quan's insistence, the next day, the engineering team still came here and dug dozens of wells, the depth of these wells is relatively deep, the deepest well reached 120 meters deep, and the shallowest well was 56 meters!

And the water in these wells is not very abundant.

The water level of the well is relatively low, and it will be more difficult for everyone to get water, so Ackerman was a little puzzled and asked: "Mr. Lin, if we dig a well here, the location of this water is too low, so it will be more difficult for us to get water by ourselves, and it will be difficult for trees to survive here." Shouldn't we plant trees in another location?"

Ackerman's doubts are normal, and normal people will have such thoughts after seeing the situation here.

But Lin Quan's thoughts were different from theirs," Mr. Ackerman, I have seen the terrain around here, and the position we are currently in is a relatively flat area in this area, with a Gobi Desert in front, and the water source situation over there will only be worse, maybe it is not as good as ours, and our first sandforest is better than 90 kilometers away from our sandalwood, if the distance is too far, the wind in the middle is likely to rise again, so we can't consider being too far away, although the conditions here are relatively bad, but this side is also a place that meets our requirements, and you don't see itThe position of the groundwater today is half a meter higher than yesterday!"

Lin Quan smiled slightly, with an unfathomable smile on his face.

He didn't want to run to the north anymore, this side is still a two-hour drive from Niamey, so the supply of materials is relatively convenient, but if you continue to go north, it will be very embarrassing, because the supply of materials will become very difficult, and the terrain in this area is indeed more suitable for planting trees, the sand is relatively soft, and if you go ahead, it is a Gobi desert, and there is little land over there, which is not suitable for farming.

"Oh, the water table has risen by half a meter?"

Ackerman was taken aback when he heard the news, not that he didn't believe what Lin Quan said, but if the groundwater level did not change much, it would basically remain stable, and he had studied it, and before Lin Quan said that he was confident in the increase in the water level here, he was still a little unimpressed, but he didn't expect Lin Quan's words to come true so quickly.

"I'll take a look!" Ackerman didn't believe that this was true, so he took someone over to measure it himself, and this thing must be true, because Lin Quan put the water jade in one of the wells last night and hung it overnight, and the groundwater has increased a lot, if it weren't for the fact that the groundwater level in this area is too low and the land is too short of water, the groundwater level can rise by at least a few meters this night, but in the end it only rose by about half a meter, but it was also very remarkable to raise half a meter, considering that the area in this area is so vast, a lot of water may have been lost, so it is very good to be able to raise half a meter of water！

Ackerman took people out for about two hours, looked at all the wells that were drilled yesterday, and found that the groundwater level had indeed risen, and the area with the most rise had risen by about 1 meter, and the least area had risen by about half a meter.

"Oh, this is really weird! How could the water table suddenly rise for no reason?"

Now, Ackerman has a new problem!