Lei Yuan's current position is General Left, who was the governor of Jiaozhou affairs and the prefect of Cangwu. Therefore, Wu Ju, the former prefect of Cangwu, worked hard to manage the stronghold for more than ten years. Bu Zhi and Shi Xie joined forces to siege Guangxin City, the capital of Cangwu County, Xunyue, became Lei Yuan's first and most important base in Jiaozhou.

As for Wu Ju himself, he was summoned to Chengdu by Duke Xuande. It is said that Duke Xuande intended to regard Wu Ju as his young mansion and treated him very well.

Guangxin City is indeed a good place. There are Yushui and Lishui convergence in the west and Fengshui winding in the east. It is a treasure land with fertile soil and flat and open terrain among the giant mountains. Lei Yuan has no doubt that if this place is developed, it will be enough to feed millions of soldiers and civilians.

When you live here and look north, Lingling and Guiyang counties in Jingzhou are Tangao, and Cangwu County are its gateway. When you look to the east and west wings, Nanhai County and Yulin County are its left and right arms of Jiaozhou, and Cangwu County can be its throat and head.

The seven counties of Jiaozhou, Yulin, Cangwu and Nanhai counties have the largest number of Han people, and have always been the core area of ​​Han rule.

Hepu, Jiaozhi, Jiuzhen, and Sunnan, plus a Zhuyazhou across the sea, there are many barbarians in the territory. The powerful commanders of all walks of life lead their own troops and govern their people, claiming to be the title of kings and princes, and they are like a country in the country. Therefore, they served as the chief officials of Jiaozhou, and were in charge of Cangwu, and first tried to gather troops to defend. If a barbarian spy on the scene, the army would start from Cangwu, and head to the border, and extinguish them in time.

From another perspective, if we want to rely on a corner of Jiaozhou to move the power of the world, Cangwu has become a must-fight for Hebian in the battle and the foundation for the guarantee.

It has been more than half a year since Lei Yuan was appointed to Jiaozhou, July 18th year of Jian'an. He first devoted himself to managing Cangwu and ignored everything else for the time being.

In this regard, there are many veterans in the Lei clan of Lujiang. They have accumulated rich experience in Lexiang and Yidu. Cangwu has the foundation of the management of Jiaozhi governors such as Jia Cong and Zhu Fu, so everyone performs their own duties, and even Lei Yuan does not need to do it himself.

However, there are always all kinds of troubles, which force Lei Yuan to worry every now and then.

At this time, Lei Yuan was looking south at a towering tower in Guangxin City. Through the surging water and the raindrops in the sky, you could see the continuous green mountains on the other side. Although it was early July, the weather in the south was wet and warm, and the trees were still dark green.

In fact, these mountains are not very high, but because the terrain around Guangxin is flat, these mountains are particularly prominent. They are distributed around Guangxin City far and near. Some are elegant, some are strange, some are majestic, and more are often hidden in the clouds and fog in the mountains, making it impossible to see their true faces.

Lei Yuan narrowed his eyes and looked out to see, but finally gave up.

He was not originally looking for the scenery, but was eager to wait for the reply from his subordinates. He wanted to know if there were any medicinal materials that he was urgently needed in the deep mountains around Cangwu.

There have been rumors of miasma in Jiaozhou since ancient times, and many doctors believe that the weather in Jiaozhou is scattered, the yang is vented, and the winter is not closed and hidden, and the grass, trees, water and springs are all exposed to bad qi. During life, they are poisoned by the day, and their vitality is not solid, which leads to miasma. Lei Yuan does not believe in these yin and yang theories. In his mind, the so-called miasma is an epidemic caused by parasites and mosquitoes, mainly malaria, and some other evil diseases with similar symptoms.

But contemporary doctors do not have to deliberately oppose the views of doctors. Doctors have their own reasons. Even if they only look at the comfort effect, it is better than Lei Yuan's verbal words. So since the end of last year, he has collected drugs to treat miasma and drive away mosquitoes in Lexiang City on a large scale, in order to make every soldier and civilian who have followed Jiaozhou able to arm their teeth.

Unfortunately, when it comes to actual operations, there are always many difficulties.

Only one thing was to drive away mosquitoes. After Lei Yuan stayed in Jiaozhou, he discovered the dilemma.

There are too many mosquitoes here, and it's so hard to catch up.

Lei Yuan was already standing at the highest point in the city, still walking around, waving his sleeves. But there were still two red bumps on his back and his neck from time to time. Li Zhen followed Lei Yuan, holding a grass fan and slapped mosquitoes, but in fact there was no effect. Chi Li Ningta held a large bundle of lit plants in both hands and walked around the tower.

It is said that the local natives say that the thick smoke from this plant can repel mosquitoes. So Lei Yuan sent people to the mountain to collect a large amount of money yesterday, and he didn't know how to harvest it.

In fact, he didn't expect much. The bundle was burning very vigorously at the moment, but the effect of mosquito repellent was not seen. Only Chi Li Ningta's eyes were fumigated and blood-red.

Lei Yuan could even see it with his naked eyes. Just a few feet away from him, countless mosquitoes buzzed together under the eaves of the platform, and then scattered and flew towards the target.

The target is Lei Yuan and his entourage.

Li Zhen gave up on his grass fan. He ran to the bottom of the platform and asked the other entourages to carry the gauze tent up and open it. However, the gauze tent cannot be closed, and it is just better than nothing.

Even Gaotai is like this, and the situation in various manors in the military camps will never be much better. In the past few months, there have been many people affected by epidemics or disagreements in the local environment, and some people have died. At this moment, many soldiers in the military camps were disturbed by malaria and malaria. The drugs brought from Jingzhou were consumed in large quantities, which was simply insufficient to use. Thinking of this, Lei Yuan was a little irritable.

In the mountains, in Lexiang and Yidu, Jingzhou, he had never seen deep mountains and dense forests that were not developed, nor had he seen poisonous insects and beasts rampant, but the damp heat in Jiaozhou was better than those places, and the denser pathogenic factors were far more common than those places.

If you want to drive away many sources of disease, the best way is to clear the wetlands and gullies in the city, ensure dry and ventilated areas in dense crowds, and compress the growth space of mosquitoes.

However, it is easy to say but difficult to do, at least not a year or two.

In the past two months, Lei Yuan has used a lot of manpower to rebuild General Zuo and his affiliated military camp, raise the entire foundation, and fill all unnecessary ditches. According to Lei Yuan's idea, he originally planned to fill all the ditches, but because of the rainy weather in Jiaozhou, he had to leave behind crisscrossing drainage channels.

As a result, after two or three rains, these channels were still filled with mud and mosquitoes, and their shape was unsightly.

The craftsman leader Xu Jian said that if all these channels are surrounded by brick or clay, the problem will definitely be solved.

Lei Yuan thought this idea was very good.

However, the amount of stone projects is too large. At present, the military and civilians have their own urgent tasks and cannot mobilize a large number of people to do this.

If you burn bricks... First of all, in contemporary customs, bricks are used for building tombs, and at most they are wrapped in a small amount on the rammed earth city wall; secondly, because it is rainy in spring and summer, Xu Jian's process of building a brick kiln was not smooth.

So, it depends on clay?

Then we have to find a place suitable for mining and shipping clay. Song Shui was responsible for this matter, and he still has no idea.

Lei Yuan sighed deeply.
Chapter completed!