The wasteland around the Xiazhou City Administration is not too difficult to plant all the poplar forests, as long as the people in the city are mobilized to plant, it can be completed in one year, and it is not much difficult to water and maintain it normally, and the results can be seen in a few years.

However, the desertification land in the whole territory of Xiazhou, absolutely not only around the place, there is a great desertification phenomenon in all directions of the southeast and northwest, especially in the north and west, the degree of desertification is the highest, and several states and counties in the north of Xiazhou also have a very serious desertification phenomenon, if the desert in these places is eliminated, it is necessary to plant a lot of poplar trees, and the small saplings that have just been planted for one or two years need to be watered and maintained frequently, otherwise they will die.

Under the premise of backward equipment, it is very difficult to maintain such a large area of plant afforestation, and even more difficult is that it is difficult to convince the local people and not easy to gain the support of ordinary people.

After all, what do ordinary people still expect from their family's arable land to support themselves? Let them quit the land to plant trees, their livelihood will be affected, especially the Chinese people, who have a very firm attachment to the land, and will not be willing to give up their land unless they have to, and it is not easy to convince them.

Later generations of people understand the role of plant afforestation on the environment, but the people of this era do not think so, they open up wasteland and farm, cut down huge trees to build houses, which has caused great damage to the environment, so that the environment has gradually become desertified, but they themselves do not think so, they do not feel that they cut down trees, destroy the forest and cause the desertification of the land, they think that it is often not raining all the time, which leads to the local desertification phenomenon, and even think that it is the local people who have done bad things, so, God wants to punish the people here and not give it rain, so that the phenomenon of desertification gradually occurs here.

This ignorance of scientific knowledge makes it extremely difficult to convince them to return farmland to forests, or even impossible to convince them at all.

"There are thousands of acres of wasteland that Mrs. saw here, far away from the river, the original cultivated land has been abandoned, and any crops will not grow, but there are too many such places in Xiazhou, if all poplar trees are planted, it will take a lot of manpower and material resources, and the later watering and maintenance are a big problem, it is definitely not an easy thing, it is too simple for you to think."

Li An said.

Obviously, what Li Hanlu thinks is just to plant the poplar saplings to complete the task, but this is obviously not possible, after planting the tree, you must water, and even continue to water in the future, until the root system of the young sapling has developed to a certain time, and it has the ability to absorb water from deep underground, so that there is no need to continue watering, and the previous seedling stage needs to be watered all the time, otherwise, it is very likely that it will not be planted.

"There are no people in most of the desert areas in Xiazhou, it's just a desert, there are so many deserts in Datang, no matter what to do in those useless places, just make the city full of green."

Li Hanlu opened his mouth and said.

This idea is very short-sighted, but also very realistic, after all, to conquer desertified land, is not an easy thing, small-scale desertification land is not difficult to manage, but the larger area of desert land is more difficult to govern, that requires huge investment of manpower and material resources to conquer, and except for the imperial court, no individual is capable of doing this.

And to persuade the imperial court to invest huge manpower and material resources to conquer the desert, this difficulty is too high, it is estimated that from the emperor to the minister, no one will agree, after all, the Tang Dynasty has thousands of miles of rivers and mountains, the land area is already large enough, the land of fish and rice is innumerable, and the abundant products are the best in the world, so why care about a small amount of desertified land? If all these desertified lands are thrown away, the imperial court will not frown, after all, the imperial court will consider anything, it is necessary to weigh the pros and cons, and only when the pros outweigh the disadvantages, the imperial court will unanimously approve it.

And large-scale afforestation, to conquer the desertified desert, this can bring too little benefit, at least in the eyes of the world, the benefit is not very large, and the cost to be paid is simply astronomical, even the rich court is a little unbearable, so, there is almost no possibility of passing.

Of course, if the desert is not in Xiazhou, but on the edge of Chang'an City, every windy season, a large number of sandstorms will sweep through Chang'an City, so that the entire Chang'an City will fall into a fog, in this case, the imperial court will pay attention to it, and the possibility of passing will be very great.

For example, a certain desert in later generations, the scale is also very large, but the imperial court has invested huge manpower and material resources to conquer it, and the reason is that because this desert is too close to the capital, once it is the windy season, a large amount of sand and dust will sweep the entire capital, making the nobles living in the capital miserable, so it was decided to invest huge manpower and material resources to conquer the desert, and successfully conquered a desert hanging above the capital, since then, the sandstorm situation in the capital has begun to improve, The good is not a star.

"What Madam said is, I just think about it casually, it is impossible for the imperial court to pass, these guys, where can they think of things after a hundred years and a thousand years, they only think about the things in front of them."

Ang Lee opened his mouth and sighed.

The court of any empire, when considering problems, thinks from the perspective of interests, and the pursuit of interests is an eternal and unchanging truth, and it is obviously impossible to expect them to think about future generations.

After the afternoon, the wind was stronger, the wind blew up more sand and dust, and it blew higher and farther, and even, standing on the tall city wall, Li An could feel the feeling of the soil entering his nostrils, the unique smell of the soil was easy to feel, and Li An obviously didn't want the soil to blow on his face, especially in his mouth, nose and eyes, and there was no room for dust.

"Madam, the dust here is too big, let's put on a mask!"

A few years ago, Li Ang had already invented the mask, a kind of protective equipment with advanced filtration performance, with this advanced equipment, you don't have to worry about sand and dust entering your mouth and nose, and the eyes, with eyelash filtration, the problem is not big, unless the sand and dust is particularly serious, in that case, you need to wear professional windproof sand glasses, such glasses are also available, and they are brought when they set off, and now the wind and sand are not very big, so there is no need to use this kind of glasses.

Li Hanlu took a mask and put it on his mouth and nose, and Li An also wore it, so that although it was a little harder to breathe, it also avoided the sand and dust from entering his mouth and nose, and it was worth the hard work.

Xiazhou City has two city walls of the inner city and the outer city, and the inner city is divided into two cities, the size of the east city and the west city is not much different, the circumference of the east city is more than five miles, and the west city is slightly smaller, the circumference is less than five miles, as for the city wall of the outer city, there are ten miles in a single direction, and the circumference is about fifty miles.

At that time, when this city was built, it was designed as the capital of Huxia, so the scale of the city was built so huge, and with the fall of the Huxia Empire, the administrative status here has plummeted, so it is not suitable to maintain a city of such a scale, and the population is not so much, it can't support such a large city at all, so the outer city is gradually not used, the local garrisons and soldiers have entered the inner city to live, and the people living outside the city have begun to grow crops between the inner city and the outer city, Even, some people in order to take soil to build houses, directly destroy the outer city wall, resulting in the gradual destruction of the outer city wall, gradually left a area of the outer city in the east, the rest of the outer city wall is almost destroyed, and even some places are destroyed less than two meters high, ordinary people can easily climb over the past, let alone resist strong enemies.

For the common people's wanton destruction of the outer city, the court is indifferent, as long as they do not destroy the inner city wall, after all, this is not the capital, to two city walls is a waste, the city wall is not the longer the better, after all, the longer the city wall, the more defensive troops are needed, if there is not enough troops to support, the defense will be a big problem, so, take the initiative to give up the outer city wall, use the limited force, go all out to defend the inner city wall, is the best policy.

And because when it was built, it was too strong, so even if the people wantonly destroyed it, it could not completely erase the basic outline of the outer city wall of Xiazhou.

For example, according to historical records, when the city wall was built, many craftsmen were killed, and the bodies of the killed craftsmen were buried inside the city wall.

Looking at the past from the perspective of Li An's sitting, the outline of the outer city wall in front of him has become irregular jagged, which is not only the credit of nature's wind and sun, but also the credit of the local people's foolish people to move mountains, and in a few hundred years, it is estimated that this place will become completely unfound.

The destroyed city walls are not only the abandoned outer city walls, but also the palace halls in the inner city.

When the city was first built, the tallest building in the inner city was the Imperial Palace, which was where the supreme ruler of the Huxia Empire lived, and the building must have been as high as mighty.

According to the records of the historical books, the city of Xiazhou at that time was a tall pavilion, the flying pavilion was connected, all carved pictures, were embroidered with Qi, decorated with danqing, and the poor literary style, that is to say, no matter how tall and magnificent the city was expressed in any words.

After the demise of Hu Xia, because this city is no longer the capital, therefore, such a tall building as the imperial palace naturally cannot exist, otherwise, let a petty official who guards the city live in such a luxurious palace, what kind of system is this, so that the emperor is not very faceless, if it is self-reliant, the capital and the palace are built in the province, so the tall and luxurious palace must not continue to exist, all the royal items in the palace are naturally all transferred, and none of them can be left. As for the tall palace that cannot be removed, the most reliable and trouble-saving means is to directly seal it, let it fend for itself, and it will certainly not spend any money to maintain, over time, no matter how tall and luxurious the palace will become barren and deserted, after a few years, even if it is not sealed, no one will live in it, because as long as there is no human habitation and care, no matter how good the palace is, it will become a paradise for all kinds of animals, and the spider web alone can make a mess of the entire palace.

And the Huxia Empire fell for hundreds of years, in these hundreds of years, many buildings in Xiazhou City need to be repaired, and the damaged part of the city wall also needs to be repaired, and where to find the required building materials, the abandoned palace is undoubtedly the best choice, so the useless abandoned palace has been gradually dismantled.

After the imperial court dismantled the main building materials of the palace, there was no need to seal the remaining residues, so that the common people in the city who needed to build houses would also go to dismantle some stones and woods that could be used, so that the palace hall would be damaged at a faster rate, until finally the foundation was left, and all the materials that could be used were dismantled, and it looked desolate.

"Madame, please see, there is a large open space on the east side of the city, and some small sheds have been built on the door, all of which are homeless and poor, and which was once the splendid palace, that is, the palace of Helian Bo, which is now dilapidated."

Li An pointed to the location of the original palace and spoke.

"Oh, that's Helian Bobo's palace, I really can't see anything, it looks so desolate now!"

Li Hanlu sighed.

"Yes! That place used to be the highest and most glorious place in the whole city, but now it has become the place where the poorest vagabonds live, and it is really amazing that there is such a big difference in the same land! ”

Li An said with a smile.

And what makes Li An sigh even more is that such a strong city was easily broken by the Northern Wei army, which makes people sigh, and the person who broke through this city is the famous Northern Wei Emperor Taiwu Emperor Tuoba Tao in history, this guy is very powerful, he has fought countless battles in his life, has won countless battles, and when he attacked Tongwan City, in order to explore the reality of the city, he actually put on the clothes of the Xia army and entered the city with the rout, after being discovered, he was able to blend into the palace, and use the woman's skirt as a rope to secretly escape from the city.