The success of drought fighting, sufficient food security, attracted the population of several surrounding counties to migrate to Longchuan County, with the continuous growth of the population and the continuous improvement of the labor force, people's living standards have made a qualitative leap. The demand for commercial trade between townships is becoming more and more obvious, and Li Tangshan and Zhao Tuo are worried about the problem of building water trade, the cost of land road development is too high, and the cost of water transportation is very low.

Chun Yuyi and Zhao Zhongzheng promoted the knowledge of basic hygiene, and Li Tangshan was worried about the establishment of a basic epidemic prevention system.

Zhao Tuo paid more and more attention to Lu Jia, and Li Tangshan and Mei Juan, who were idle, drank tea in their lobby. Meixian Shikeng green tea is Li Tangshan's favorite drink before, Li Tangshan asked Qichang Township Mayor Lei Kaixian to help pick wild tea, at this time the Shikeng area is still a forest, but a small number of Baiyue people are active in this place, which is more natural and organic.

Lu Duan came out of the inner courtyard with a worried face, and Mei Juan asked, "Lu Duan, what makes your face sad?" ”

Lu Duan said with a worried face: "Mother, you haven't been in good shape lately!" ”

Li Tangshan asked Lu Duan worriedly: "Is it serious?" Are you going to ask Dr. Chun to come over? , I'll take a look first? ”

Mei Juan put down the teacup and went to the inner courtyard with Li Tangshan, and as soon as she walked into Zhao Man's room, a rush came to her nose, and the windows and doors were closed. Li Tangshan said to Mei Juan: "Wife, you go and open the window and door for ventilation." ”

Zhao Man saw that Li Tangshan and Mei Juan came to see him, and hurriedly got up to pick her up, Li Tangshan hurriedly waved her hand to let her lie on the bed, Li Tangshan frowned and said, "Wife, your room wasn't so damp before?" ”

Zhao Man said: "It used to be very dry, but recently I don't know why it has become so humid, I thought it would be fine in a few days!" ”

Chun Yu was so angry that he hurried back with Lu Duan, carefully checked Zhao Man's condition, turned to Li Tangshan and said, "Don't worry, it's right for me to prescribe a few medicines, and it's better to change to a drier room to live?" ”

Mei Juan said: "Doctor Chun, the weather in Longchuan has been humid for a long time, do you have any good suggestions?" ”

Li Tangshan nodded and looked at Chun Yuyi, this is also the question Li Tangshan wants to ask, so many immigrants from the Central Plains in Longchuan and even Nanhai County should be similar questions.

Chun Yuyi: "Baiyue's dry-bar building is a good choice. ”

Li Tangshan: "Oh! The dry-bar building is a major feature of the Baiyue culture, so what are the characteristics of the dry-bar houses of the Baiyue people? ”

Chun Yuyi: "Baiyue people's home building has the effective use of space, a room for multiple purposes, Baiyue people build houses are prevalent wooden dry bar customs, the house is divided into two floors, according to the habit of Baiyue people is the lower layer of livestock, the upper layer of people. ”

Li Tangshan nodded, even if the dry-column building is still widely used in the Pearl River Delta region and Southeast Asia in modern times, there is a reason for its existence. A stilt house is a kind of ground structure with a wooden structure. Some areas in the south are low-lying, humid and warm. In order to have good ventilation and moisture-proof performance in the living place, the ancestors of Baiyue built dry slab houses. This kind of wooden building house is generally composed of a number of wooden piles, logs, and planks, and the lower part has a wooden pillar to form a base frame, which is higher than the ground, and the base frame is built by the method of piling. After the piles are made, the beams are erected, the planks are laid, and then the columns and beams and the roof are erected on the planks to form an overhead building house. The dry fence type building can not only prevent the harm of snakes, insects and beasts, but also avoid moisture, and can also raise poultry and livestock below. To this day, this ancient architectural form is still used in some ethnic minority areas in southwest China.

Dr. Li Tangshan Lachun went out: "Let's go, let's go to the nearby villages to investigate." ”

Li Tangshan and Chun Yuyi came to the village in the northeast of Longchuan City, Li Tangshan had not studied these buildings very seriously before, dampness can be solved by an air conditioner in modern times, and the shape of the building can be very diverse, and the humid climate can especially cause rheumatoid arthritis, and moisture prevention and flood control are also very important to Longchuan City.

Dry-stilt houses are built on wooden (bamboo) pillars and are built above the ground. The specific construction method of this building is to use the erected wooden pile as the foundation, and the bamboo, wooden keel of size is erected on it as the base that supports the floor to hang in the air, and then the wooden column and the frame beam are erected on the base, and the wall and roof of the frame shape are constructed, and between the columns and beams, they are either filled with bark thatch or bamboo strip plates or with grass and mud.

The main function of the fence house is to isolate the house from the ground and achieve effective moisture protection.

Longchuan Baiyue people live in the longhouse ganlan building with a front porch, and its construction method has adopted advanced technologies such as beam head tenon and flat body column joint, corner column joint, column head, column foot tenon, tenon with slightly nail holes, square wood insertion, lattice and tongue and groove board.

Longchuan City is located in the northeast of Nanhai County, more than 260 kilometers away from Panyu City, is located in the valley of the tributary of the Qingshui River, the main stream of the Nanpan River of the Pearl River system, although it belongs to the subtropical monsoon humid climate, but because the altitude is less than 200 meters, and the four sides are high mountains, and the middle is the river valley. As a result, summer temperatures are higher and the climate is hot. The Baiyue people like to build their villages at the foot of the mountain or in a sunny and well-ventilated place on the slope of the mountain. Trees were planted on the back hill and at the edge of the village, and it was stipulated that they should not be cut down indiscriminately to keep the village safe. The house in Longchuan City is built on the tall and steep slope of the mountain, the house continues the ancient tradition of the Baiyue people's dry column building, this kind of house adopts tile roof earth wall or wooden plank wall, has the characteristics of moisture-proof and heat-refuting, warm in winter and cool in summer, even in the hot summer, as long as you get into the house, it feels very cool.

Houses in villages are generally built with two to three storeys. The first floor is mainly used for raising livestock and stacking farm tools, etc., the second floor is used for human habitation, and the third floor is mainly used for stacking grain and storing some household goods. The two-story building where people live, in the middle is a large hall with a kitchen, a fire pit, and meals, leisure, embroidery, etc. are arranged here. On both sides of the hall are rooms, and the rooms are arranged according to the age of the family, the elderly live in the kitchen room on the left, and the room on the right is occupied by the young people.

In addition to the main street, the other streets of Longchuan City are very narrow, and in some places it is difficult for ox carts to pass. Indirectly caused by this phenomenon, the residential land in Longchuan City is very expensive, there are no more places to build, and the houses have always been built next to each other, and the neighbors communicate well, which is a symbol of unity and harmony.

The villagers in the village also refer to the way of Longchuan City, the houses have always been built next to each other, and the production and life of the villagers mainly rely on people and horses, and the villagers have fully accepted this living environment. Ancient buildings, narrow streets and pristine Baiyue people make up a beautiful scenery in the village.

Li Tangshan and Chun Yuyi were very satisfied with this investigation, and learned from the experience of Baiyue's excellent residential buildings, and Li Tangshan began to promote this kind of dry column building from his own house.