With the second and third earth blast furnaces put into use, the copper smelting capacity of the smelting area has reached 15 catties, and the daily consumption of copper ore has reached 700 catties.

In addition to forging new tools, the remaining blister copper is used to forge axes, saws, shovels, and pickaxes.

Axes and saws can be used to process wood, and shovels and pickaxes can be used for mining and ploughing, and it can be said that these four tools are the most commonly used.

As for weapons made of blister copper, the Dragons don't need them yet.

The three teams of the dragon tribe have completed the rotation, and now they are taking team B to mine copper ore in the copper mining area, Shen is taking team C to transport food and copper ore between the dragon tribe and the copper mining area, and Zhi is taking team A to stay in the dragon tribe, usually doing some work such as fishing, burning bricks, and building tile houses.

A month has passed in the blink of an eye, spring is coming to an end, and the upcoming rainy season is also a time for the dragon tribe to open up the wasteland on a large scale.

In a month's time, the three teams of the Dragon Tribe, A, B and C completed three more rotations, and more than 50,000 catties of copper ore had been piled up in the area near the smelting area, like a hill, not counting the 20,000 catties of copper ore that had been used up by the three earth blast furnaces.

The 20,000 catties of copper ore consumed by the earth blast furnace smelted a total of about 450 catties of blister copper, and finally all of them were cast into various tools.

The copper ore exposed on the surface of the copper mining area has been exhausted, and the copper ore buried in the land can only continue to be excavated, and the mining capacity has been rapidly reduced, once reduced to less than 2,000 catties per day, but with the use of a large number of copper shovels and pickaxes with higher efficiency than stone shovels, the mining capacity of copper ore has increased to more than 3,000 catties per day.

The smelting area has been on the right track, there is no need for Su Yan to stare every day, it will only appear when preparing to cast new tools, every day Su Yan devotes most of his time to the manufacture of bellows, and has failed to make several bellows in a row, and the interior of the main wooden box of each bellows has been transformed several times, until it is impossible to continue to accept the transformation before making a new wooden box.

Failure is the mother of success, this sentence is true, Su Yan has already figured out a little clue after experiencing many failures, maybe he can make the bellows after making a few more wooden boxes, but now Su Yan has temporarily put down the matter of making bellows, and turned to plan the next wasteland.

Reclamation was to increase the area of cultivated land, and after the discovery of copper mines, the second goal of reclamation appeared, opening a road from the dragon tribe's settlement to the copper mining area.

Originally, it took half a day to walk from the Dragon Tribe to the copper mining area, but this was still in the case of familiarity with this road.

If this road can be opened, the time taken to get from the dragon tribe to the copper mining area will be reduced by at least an hour, and if the road can be repaired simply, the time taken will continue to be shortened, and even cars can be made to transport copper ore on a large scale.

Thinking of the area that needed to be cleared, Su Yan took a branch and drew a simple map on the ground, outlining the areas where the dragon tribe lived, planting areas, smelting areas, copper mining areas, and jungle areas.

The first is to expand the planting area, and Su Yan plans to expand the planting area to the north and west by a distance of 200 zhang respectively.

There are two points to pay attention to when clearing the land and expanding the planting area: the old residence and the smelting area are just in the area of the wasteland, and the wood needs to be used for smelting copper ore, and the jungle near the smelting area needs to be left; Old settlements can be burned down, and those houses that are two years old will leak on rainy days, and there is no need to continue to maintain these houses.

All the slaves who originally lived in the old residence moved to their new homes, and the houses built inefficiently by the Dragon Tribe plus the houses built before were enough to accommodate 2,000 people, and the total population of the Dragon Tribe plus slaves was less than 1,800 people.

The second is to open the way from the Dragon tribe's residence to the copper mining area.

Su Yan estimated the length of this road, an adult walking speed in the jungle is about six to eight miles per hour, after familiarizing himself with this road, add some weight to walk in nearly three hours, it is estimated that the total length of this road is about thirty-five miles.

If you want to use fire to open up a road of thirty-five miles, you need to open up the wasteland many times, if you can open up the wasteland from both sides of the road at the same time, this time can be shortened by half, as for the multi-section land, this method has a certain danger, do not consider the use.

There is also the problem of wind direction during land reclamation, because it is a multi-point fire, and there is still a separation zone between the planting area and the jungle area, so there is no need to worry about the fire during land clearing will burn to the planting area.

The day after the various matters of land reclamation were conceived, Su Yan went to the copper mining area with Team C and met Yuan who was digging copper ore with his clansmen.

Yuan is the high-level of the dragon tribe, most of the time the high-level of the dragon tribe will share weal and woe with the clansmen, eat together, work together, hunt together, labor is glorious, and the patriarch also needs to work.

Su Yan: "Yuan, there is one thing that you need to do. ”

Yuan: "Wang, what do you need me to do?" ”

Su Yan: "I'm going to use fire to carve out a road from my place of residence to the copper mining area, and when the road is opened, the time to travel between the two places will be shortened a lot." ”

Yuan: "Wang, what should I do?" ”

Su Yan: "It's about to enter the rainy season, before the rain you take your tribesmen along the road in the direction of the tribe, I will leave a few obvious markings along the way, you stop at the first mark, and then set fire to the copper mining area along the road from this marker. ”

Yuan: "I understand, I will complete the king's task." ”

As soon as Su Yan said it simply, Yuan understood what Su Yan asked him to do, Su Yan had led his clansmen to set fire to the wasteland many times, and Zhi and Yuan were the two who knew the steps of clearing the wasteland the most.

Team B brought by the edge only needs to open up the first section of the road marked to the copper mining area, and it is expected that the three teams A, B and C will rotate the task before the next rain, and Su Yan will tell Shen Hezhi about this matter again.

Soon, the first heavy rain of summer arrived, and the dark clouds in the sky were gathering, feeling this coming heavy rain, Su Yan summoned the four patriarchs of Zhi, Biao, Shen, and Song to make simple arrangements, and the specific plan had been told to them before.

After the meeting, the four patriarchs set out with their own teams carrying tinder (made of charcoal) and torches.

Zhi's team set off first, and the most important task was handed over to Zhi by Su Yan, and Zhi's team advanced along the road towards the copper mining area, and stopped after finding the first mark made by Su Yan.

About half an hour after Zhi's team left, the other three teams set off, and by this time Zhi's team had already set fire to the tribe's side from the first mark made by Su Yan.

It should be noted that the jungle leading to the copper mining area should be vacated when the cultivation area is cleared, if this jungle is also burned, the Zhi team will not be able to return to the place of residence, and may even be surrounded by fires and their lives may be in danger.

The rotting leaves and dead grass on the ground were lit by torches, and the fire gradually rose, and the fire spread in patches, and the raging fire devoured everything in front of it, as if even the sky was burned red.

After another quarter of an hour, Zhi's team returned without incident.

The last area was lit, and the people involved in the arson quietly watched the fire that was constantly engulfing everything not far away, and the heat generated by the fire rushed to their faces, and the people could only retreat a little distance back when they felt the heat.

"I don't know what's going on over there." Su Yan looked at the cloudy sky.