Fearsome Farmer

After delineating the precise area for the wetland ecosphere, Li Siwen once again determined the location and shape of the artificial lake through on-site inspections, taking into account factors such as terrain changes, strategic locations, and the scale of the dam under construction.

After all, the excavation of the artificial lake is best to complement the dam, and the excavated soil can be directly piled up to form a dam, which saves time and effort.

As a result, the artificial lake eventually became an L shape, and if it was more rounded, it could be like a crescent moon. Anyway, it followed the position of the dam.

Just dig as much soil as the dam needs.

This cannot be accurately calculated. Li Siwen roughly estimated that the length of this artificial lake must be two kilometers from north to north, and three kilometers from east to west, and this is basically the length needed for future waterproof dams.

It is worth mentioning that the northern end of the dam ends at the Xiling Highland, not the flooded valley. It is difficult for the river to flow up this part, so only stone walls will be piled up.

The east end of the dam also ends at an unnamed highland, and above this unnamed highland is the observatory.

How much water can be stored in such an artificial lake and how many fish can be raised, let’s not count it for the time being, um, don’t ask why, it doesn’t count.

In the area of ​​this artificial lake, that is, in the lake, there are two wood demons, the purification wood demon at the south end, and the wetland wood demon at the west.

The former has a strong function of soil purification and water purification. Being located in the artificial lake is not only a beautiful landscape, but also the most practical.

The latter has super water storage capacity and a certain degree of water purification capacity.

"The water in the artificial lake cannot become stagnant water, so it has to flow. The wetland wood demon will continue to increase investment in the future. The reserved water source can be used as the source of the artificial lake. Well, how about a small stream? The water of the small stream flows down from the upstream , but it can’t go straight, it has to form nine bends and eighteen bends, so as to increase the water coverage area of ​​the wetland as much as possible.”

"When water flows into the artificial lake, in addition to those consumed in the middle, there will also be evaporation of water vapor, and this requires the weather control talent of the wetland wood demon to absorb free water molecules in the air as much as possible and absorb them into the tree. Then enter the water storage tree roots, and then flow down through the upstream stream, thus forming a closed loop."

"Of course, this closed loop is not perfect. On the side of the artificial lake, at least two earth wood demons are needed to help absorb the stagnant water, purify it into living water, and then transport it to the upstream. This is a three-pronged approach, and the ecological circle will be stable. .”

"However, for the time being, I can't ripen the Earth Wood Demon anymore, otherwise the fiscal deficit of the vitality value will be in deficit. Just now, all the investment in infrastructure construction is necessary and cannot be reduced. If you don't invest now, next year The kind that is too late, now, only talk about the structural layout."

Afterwards, Li Siwen went to the black water swamp, and even the outskirts of the barren village's poisonous mist, and made a rough assessment of the speed and nature of its spread.

First of all, there is no doubt that the poisonous fog and poisonous water are destructive to the plants on the land, as if this is a variant of some kind of curse, which can generate more poisonous fog and venom by devouring plant soil and other substances, like snowballing.

Very troublesome.

In addition, the poisonous mist is not an ordinary mist. There seems to be a very small sticky thread in it, which is very long, very thin, and many, entangled with each other, engulfed in venom. Specifically speaking, it is a big mouthful of flying and floating sputum. Extremely disgusting.

The poisonous fog will not exceed 30 meters above the ground, just floating like this, unless it is blown away by a sudden strong wind, but that would be even more of a disaster.

At the rate of corrosion and expansion of these poisonous venoms, it may spread to Li Siwen's wetland ecosystem in at most two months.

For the time being, we don't know how low temperature weather and high temperature weather will affect these venom poisonous mist, and winter is coming soon, if the poisonous mist spreads northward, it will be a disaster.

Before leaving, Li Siwen took some of the venom samples in an earthen jar, and he had to take them back to see if the Purifying Wood Demon could purify it. This was the main premise of everything.

In less than ten minutes, a layer of black fluff grew on the surface of the thick earthen jar, and then some dense holes began to appear inside the earthen jar. The corrosion effect was shocking.

"It seems to be stronger than sulfuric acid, so it's not like simple corrosion. This is a curse, which can ignore steel, stone, and even trees, so I have to study it carefully."

Li Siwen put the jar of venom near the purified wood demon, and soon, as the jar disintegrated, the black venom spread around like a little monster out of the cage, baring its teeth and claws.

The first thing to suffer was the weeds, which were directly swallowed by the venom, and even some small stones were covered by the venom. You could see the black fluff growing rapidly on them, and the small stones were decomposed in just a few minutes.

The soil was turned into mucus, and countless black silk threads appeared. When the wind blew, a faint poisonous mist was formed like this.

"Awesome! Old Song, come here and borrow some fire!"

Li Siwen yelled, and Song Hu soon ran over. In this short period of time, this jar of venom had already produced about four to five cubic meters of light poisonous mist, but the purification function of purifying the wood demon had not yet been activated. The roots are underground.

In addition, with the expansion of the corroded area, the phagocytosis effect of this jar of venom is gradually slowing down, and the moldy black silk flocks are decreasing. This is good news, otherwise, wouldn't it be infinite proliferation?

After expanding to a range of about ten square meters, the corrosion rate of the venom stopped, and the poisonous mist was just a cloud, floating like sticky phlegm, which was very disgusting.

"Boss Li, what is this?"

"A cursed venom, it's hard to deal with, um, I'll burn it later." Li Siwen replied calmly, and then he picked up a stone from a distance and threw it in. This time, the stone basically couldn't be broken down, it just covered it A layer of black silk flocks.

It just so happened that Lord Fox came on patrol with a fat dim sum mouse in his mouth, so Li Siwen asked for the dim sum mouse to come over and threw it in again. Now the whole venom and poisonous mist instantly came to life, and they pounced on it like a terrifying beast. The Dim Sum Mouse's body was digested and devoured in a few seconds, and the venom seemed to have an extremely powerful vitality again. Not only did it decompose the stone that Li Siwen threw in before, but it even expanded its range a lot.

"Understood, that is to say, as long as there is enough flesh and blood as sacrifices, or even plants as sacrifices, the venom can expand infinitely. So in theory, there is no need to worry about the venom spreading from the deserted village. But this is just a theory The river in the Ratman Canyon has a lot of fish and shrimps. The venom has already polluted there. Now the venom is gushing out from the deserted village. Caused a venom explosion."

"So the best way is not to defend, but to completely destroy it. This f*cking Eyeball Lord is not ordinary!"

Next, Li Siwen poured hemostatic herbal powder into the venom, including some idiot medicine, but as expected, it was completely ineffective, and even became the nourishment of the venom.

As for pouring water into the venom, the water will not become nourishment for the venom, but it will push the venom to a farther position, allowing the devouring to continue.

So this will not work.

In the end, Li Siwen couldn't think of any other testing method, so he snapped his fingers, and a nearly one-meter-long flame burst out from Song Hu's palm, aiming at the poisonous smoke, it burned fiercely for a while.

Under the burning of the flames, the fluffy poisonous smoke was completely burned within ten seconds, but the venom on the ground was not afraid of fire at all, or something was wrong, Li Siwen took out a wooden goblin the size of a lighter Hua, throwing it up, the flames rolled, and within a short while, the poison that had spread over more than ten square meters was burned up.

It's just that the burned land is like a mangy dog, which is ugly. It is estimated that there will be no weeds growing in the next few decades.

Li Siwen stared at the ground for a long time, then looked at the purification wood demon tree for a long time, his expression became extremely solemn, thanks to the fact that he got some venom in advance for experimentation, otherwise he might suffer a big loss, the purification wood The demon is not omnipotent, and it probably needs external stimuli to make corresponding adjustments, which is the so-called stress response.

I have never been exposed to this unprecedented venom, let alone purify the wood demon, even if I come to a dozen of the top scientists and laboratories, I have to study and find out the rules first, and then make targeted antidote, right?

Apart from anything else, Li Siwen moved a lot of earthen jars when he returned to the safe house, and started to retrieve the poison from the deserted village. After returning, he directly poured it on the purified wood demon. As expected, the consequences were very serious. The jar of venom actually killed one-fifth of the tree trunk as large as the Purified Wood Demon in just one hour, which is too miserable.

Doesn't this mean that as long as four more cans of venom are added at a time, the dignified Purifying Wood Demon will say goodbye?