Lin Feng chose to build the shelter on the east side, where the terrain was flat and could receive the maximum amount of sunlight from the edge of the Sunwheel Wood Basin.

He plans to build five large greenhouses, each about 20 meters long, 10 meters wide, and 5 meters high, to ensure sufficient planting space and light and heat circulation.

He first used iron smelting technology to create a batch of more precise iron tools, including large measuring tapes, cutting tools, and connectors. These tools would greatly improve the accuracy and efficiency of construction.

The construction process of the greenhouse was broken down by Lin Feng into several main steps and assigned in detail to the "Golden Silk Miners Team" and the women.

Step 1: Foundation and drainage.

This work was mainly handled by the "Golden Silk Miners Team".

Using shovels and picks modified by Lin Feng, they dug foundation trenches about one meter deep and half a meter wide within a designated area.

The bottom of the trench is lined with gravel and coarse sand to ensure good drainage and prevent rainwater and snowmelt from seeping in and affecting the internal temperature.

During the foundation excavation, Lin Feng also asked them to dig simple drainage ditches to divert any rainwater that might accumulate to the low-lying areas around the shelter.

The golden "monkeys" were strong and fast, quickly completing the excavation of the foundation. Dust flew everywhere, yet the work was orderly. Lin Feng personally supervised the process, ensuring that the depth and level of the foundation met the requirements.

Step 2: Framework setup.

This is the core structure of the greenhouse.

Lin Feng cut and polished the previously felled sun-wheel wood logs according to the predetermined dimensions. Lin Feng personally operated the cutting work, using a specially made huge iron saw to precisely cut the logs into beams and pillars.

Sunwood is hard and sparks fly when cut, but its dense grain and extremely high strength make it an excellent material for building frames.

The cut timber was transported to the foundation by the "Golden Thread Miners Team".

Lin Feng directed them to use mortise and tenon joints and iron connectors to build the framework of the greenhouse.

Because the sun-ringed tree itself emits light and heat, Lin Feng reserved some space inside the frame for the subsequent transplantation of smaller sun-ringed trees, which will serve as a light and heat source inside the greenhouse.

This process demands a high level of precision and teamwork. Lin Feng repeatedly measured to ensure that every beam and column was vertical and stable, and that every connection point was perfectly fitted.

He patiently instructed the "Golden Silk Miners" on how to use ropes and levers, and how to secure and support the massive timbers.

Although the women could not directly participate in the construction of the heavy frame, they were not idle either.

Led by Qin Lan and Su Wanqing, they were responsible for preparing some auxiliary materials, such as weaving vines into bundles for binding and fixing, or clearing the site and moving some small pieces of wood and stone.

Although their movements were clumsy, they were all very earnest. Everyone understood that their future depended on these greenhouses.

Step 3: Cover with a "film".

This is a crucial step in transforming the greenhouse from a skeleton into a solid structure. The transparent vine film that the women collected is now proving invaluable.

Lin Feng designed a simple yet effective fixing method: use thin, flexible vines to fix the edges of the film to the wooden frame, and then reinforce it with iron rivets and wooden wedges to ensure that the film is taut and without gaps, so as to achieve the best heat preservation and light transmission effect.

This task required a high degree of meticulousness and patience, so Lin Feng assigned it to the women.

Tang Bao, Su Wanqing, Qin Lan, Shen Jiaqi, Ruan Mengtian, Qian Xiaoxiao, and several other women also participated.

Using Lin Feng's specially made scissors, they carefully cut the rolled transparent film into blocks that fit the size of the greenhouse.

When the film is cut, it makes a crisp, resilient sound, and its texture is as smooth as the finest silk.

Then, they carefully covered the cut film onto the wooden frame of the greenhouse.

This is a process that requires the collaboration of multiple people. Several people hold the film at the bottom, several people unfold it at the top, and several people are responsible for stretching it on the sides to ensure that the film completely covers the frame without leaving any gaps.

"Be careful! Don't tear it!" Qin Lan warned. Although this membrane is very tough, it can still be torn by sharp splinters or their own fingernails if they use too much force.

Su Wanqing was responsible for instructing them on how to use thin, resilient vines to firmly bind the edges of the film to the frame, ensuring that the binding force was even so as to secure the film without damaging it.

She also specially selected some smooth branches and had the women use them to press the edges of the film tight, and then reinforce it with iron rivets and wooden wedges.

The holes for the rivets and wooden wedges were drilled into the wood in advance by the "Golden Thread Miners Team".

Tang Bao was exceptionally serious about this task. Ever since being severely punished by Lin Feng last time, she had completely suppressed all her ulterior motives and devoted herself wholeheartedly to every task.

Her fingers were red and swollen from the prolonged friction and binding, but she didn't care and just focused on completing her task.

Shen Jiaqi was responsible for covering the greenhouse with plastic film. This was a dangerous and challenging task, requiring her to work at heights.

Although she was somewhat afraid of heights, she gritted her teeth and persevered under Qin Lan's encouragement and Lin Feng's occasional stern gaze.

She carefully climbed onto the wooden frame, then lay down on it, slowly unfolding the film and using a long pole to push the edges of the film into the right position.

Ruan Mengtian and Qian Xiaoxiao were responsible for handling some scraps and auxiliary tasks, such as sorting the peeled vine cores or collecting excess film fragments. They stopped complaining and just worked silently.

Once the main structure and film covering of the first greenhouse were completed, Lin Feng entered. The transparent film completely blocked out the biting cold wind from the outside, and although the light inside was not as bright as outside, it was still sufficient.

He felt the temperature inside the greenhouse with his hand and found that it was significantly higher than the outside temperature, creating a relatively warm microenvironment.

"Very good!" Lin Feng was satisfied with this initial result.

Step 4: Transplanting the internal sun-ring wood.

This is a crucial step in providing core solar thermal energy to the greenhouse.

Lin Feng led several members of the "Golden Silk Miner Team" deep into the Sunwheel Tree Forest again, but this time they were not going to cut down the big trees, but to find the newly sprouted, smaller Sunwheel Tree seedlings.

These seedlings were only a little over a meter tall, making them relatively easy to carry. He carefully dug them out of the soil, making sure not to damage the roots, then wrapped the roots with moist soil and placed them in a special container.

After transplanting them into the greenhouse, Lin Feng planted about ten of these *Symplocos edulis* seedlings evenly in the center of each greenhouse.

He instructed the "Golden Silk Miners" to mound soil around the seedlings to ensure they were secure and to water them.

Although these seedlings cannot provide enough temperature now, as they grow and absorb the unique energy of the Sunwheel Tree Basin, they will eventually become the "sun" inside the greenhouse.

Lin Feng also specially designed an openable ventilation opening on the top of the greenhouse so that ventilation and heat dissipation can be carried out as needed and the temperature can be adjusted after the seedlings of the Japanese privet have grown.

The alien soil is perfectly suited for crop growth.

Lin Feng ordered the "Golden Silk Miners" to dig and transport large amounts of humus and mineral-rich soil from the fertile areas on the edge of the basin into the greenhouse. At the same time, he had the women collect the animal dung and plant residue accumulated in the shelter, mix them, and make simple organic fertilizer.

Su Wanqing was responsible for instructing them on how to mix these materials evenly and then spread them into the planting area inside the greenhouse.

Once the main structures of the five greenhouses were completed, and seedlings of *Hylocereus undatus* were transplanted inside and improved soil was laid, the entire east side of the shelter was transformed.

The five enormous, translucent structures, illuminated by the light of the sun-wheel wood, appear both mysterious and full of life.

Lin Feng stood in front of the greenhouse, looking at the fruits of his and everyone else's hard work, and felt a surge of pride.

Next comes the most crucial step: sowing.

Lin Feng carefully took out the seeds of the Golden Fox Rice and the Sweet Potato.

Golden fox rice seeds are golden yellow, small and plump; sweet potato seeds are dark brown and slightly larger.

Lin Feng entrusted the sowing work to several relatively meticulous women, including Qin Lan, Su Wanqing, Tang Bao, and Xiao Mei.

Before sowing, Su Wanqing carefully studied the habits of the two plants again.

She discovered that golden fox rice prefers sunlight and a relatively dry environment, while sweet potatoes prefer a moist and slightly shady environment.

Therefore, she suggested planting Golden Fox Rice in a sunny area near the center of the greenhouse, while planting Sweet Potatoes in a softer area near the edge of the greenhouse.

"When sowing, pay attention to the spacing and depth."

Holding a small wooden stick, Su Wanqing demonstrated to the other women: "Golden Fox Rice seeds are relatively small, so the sowing depth should not be too deep, about two to three times the diameter of the seed itself is enough. Sweet potato seeds are slightly larger, so they can be sown deeper. Leave enough space between each seed for growth."

Qin Lan was in charge of overall coordination, ensuring the sowing progress and quality in each greenhouse. She distributed the seeds evenly to everyone and required them to strictly follow Su Wanqing's instructions.

Tang Bao carefully held a handful of Golden Fox Rice seeds, her hands trembling slightly.

This was the first time she had taken agricultural production so seriously. She gently dug a small hole in the soil with her fingers, placed the golden seed in it, and then gently covered it with fine soil.

Every movement was filled with piety and expectation.

Xiaomei was in charge of planting the sweet potatoes. She squatted on the ground, poked small holes of moderate depth into the moist soil with her fingers, then put in the sweet potato seeds and carefully covered them with soil.

She also marked each planting area with wooden chips so that she could observe their growth later.

Lin Feng directed the "Golden Thread Miners Team" to reinforce and improve the exterior of the greenhouse.

He used some tough vines to reinforce and bind the greenhouse film again to prevent it from being damaged by strong winds.

He also ordered the "Golden Thread Miners" team to dig deeper drainage ditches around the greenhouse to ensure that rain and snow would not accumulate.

After the sowing was completed, Lin Feng did not relax in the slightest.

He knew that water was an indispensable lifeline for these seeds to truly take root and sprout.

Although the greenhouses insulate against the harsh winter, the soil still needs to be kept moist. While the shelter is near the river, drawing water directly from the river is neither convenient nor can a continuous and stable supply be guaranteed, especially during periods of ice cover.

He decided to build a more comprehensive water conservancy system.

Lin Feng led the "Golden Silk Miners Team" to the west side of the shelter, not far from the riverbank.

The terrain here is relatively high and the river channel is gentle, making it an ideal location for water diversion. He carefully surveyed the terrain and used a shovel to mark the direction of the water diversion channel on the ground.

Upon receiving the order, the "Golden Silk Miners Team" immediately wielded shovels and picks and began this massive project.

They possessed immense strength and an astonishing digging speed. Under Lin Feng's precise guidance, the outline of a ditch, approximately two meters wide and one meter deep, quickly emerged from the soil. The ditch stretched from the riverbank, bypassing the west side of the shelter, and reaching the southern end of the greenhouse area.

To ensure the stability of the irrigation canal, Lin Feng also ordered the "Golden Silk Miners Team" to transport flat stones from a nearby quarry to be used as paving for the inner walls and bottom of the canal, in order to prevent soil erosion and leakage.

Although these stones are not bonded with cement, they can still provide good fixation through precise stacking and compaction.

At the end of the canal, Lin Feng planned to build a reservoir. He chose a slightly low-lying, flat area and had the "Golden Thread Miners" dig again.

This is a larger project than a canal, requiring the excavation of a huge depression about 30 meters long, 20 meters wide, and 3 meters deep.

The excavated soil was piled up around the reservoir, forming a natural dam.

Lin Feng also requested that a thick layer of clay be laid on the inner wall and bottom of the reservoir and reinforced with stones to minimize water seepage.

The women also participated in the construction of the reservoir. Their tasks included compacting the clay layer, transporting gravel and sand to designated locations for filling, and assisting the "Golden Thread Miners" in moving smaller stones.

Although they could not match the physical strength of the "Golden Silk Miners' Team," their meticulous and conscientious work attitude ensured the quality of the project.

Su Wanqing volunteered to oversee the laying of the clay layer, ensuring that every inch was compacted properly.

A few days later, a simple yet efficient water conservancy system was taking shape. Clear river water flowed gurgling down the brand-new stone-lined canals and into the reservoir.

The reservoir was quickly filled to more than half full.

From reservoirs to greenhouses, Lin Feng designed a more sophisticated irrigation system.

He instructed the "Golden Thread Miners" team to pre-install water inlets below the side walls of the greenhouses and to excavate smaller branch water channels between the reservoir and the greenhouses. These branch water channels could be controlled by simple wooden gates, allowing water to be introduced into each greenhouse as needed.

Once all the preparations were complete, Lin Feng stood by the reservoir and personally opened the sluice gate leading to the first greenhouse.

The clear river water, carrying the unique fragrance of earth, meanders along the narrow irrigation canals, flows silently through the water inlet on the side of the greenhouse, and enters the planting area inside the greenhouse.

The water flow was not rapid, but rather slow and even, soaking the dry soil like rain after a long drought.

The women gathered around the greenhouse, watching all this with curiosity and satisfaction in their eyes.

Where the water flows, the soil gradually darkens in color, and a hopeful, damp atmosphere permeates the air.

The cool water nourished the newly sown seeds and also the hope that burned in the women's hearts.

After doing all this, Lin Feng understood that this was just the beginning. The real test would begin in the days to come. He would have to constantly monitor the temperature, humidity, and light inside the greenhouse, as well as the growth of the crops.

He also installed several simple thermometers and hygrometers inside the greenhouse, which he painstakingly made using alien materials and his knowledge of physics.

While not entirely accurate, it is sufficient to provide general reference data.

Every morning, Lin Feng is the first to enter the greenhouse.

He would carefully examine the growth of each sun-wheel tree seedling, touch their bark, and feel the faint heat they emitted. He would also gently loosen the soil with his hands to check the germination of the seeds.

Su Wanqing records the temperature and humidity changes in the greenhouse every day, as well as the germination and growth data of Golden Fox Rice and Sweet Potatoes.

She compiled this data into tables and, based on Lin Feng's guidance, made minor adjustments to the crop's growing environment.

For example, when the temperature inside the greenhouse is too high, she would suggest opening the ventilation openings.

When the humidity is insufficient, she organizes the women to water the plants.

The women also poured unprecedented effort into these young crops. Besides their daily chores, they spent most of their time in the greenhouses.

They carefully weeded the crops to prevent the weeds from competing with them for nutrients; they carefully observed the color of the leaves, and they also learned how to tell the dryness or wetness of the soil and how to water it appropriately.

This is especially true for Tang Bao. She now treats the crops in the greenhouse as if they were precious treasures.

Every morning, she is the first to arrive at the greenhouse, gently stroking the soil and talking to these tiny seeds.

When the first batch of Golden Fox Rice seedlings broke through the soil and showed their tender green tips, she excitedly ran to tell Lin Feng, her eyes sparkling with unbelievable joy.

"Brother Lin Feng! They've sprouted! They've really sprouted!" Her voice was choked with sobs.

Although Lin Feng's face didn't show much expression, a hint of barely perceptible relief flashed in his eyes.