When Lu Lingxi and Yan Yue arrived at Lingshui Village, they caught up with Uncle Li carrying bones to feed the dogs in the garden.

Before the car stopped, Xiao Wanyuan sniffed his nose and grabbed the car window excitedly to look in the direction of the backyard. As soon as Yan Yue opened the door, Xiao Million rushed out like an arrow, his figure was as fast as a black lightning bolt, and went straight to the bone in Uncle Li's hand.

Uncle Li was taken aback by Xiao Wanhua, hesitantly holding the basin and not knowing whether to put it down or not. Xiao Wanwan was eagerly surrounding Uncle Li, unable to look away, his saliva dripped all over the floor.

Lu Lingxi ran after him, and couldn't help but feel soft, and told Uncle Li to feed Xiao Wanwan the bones first. During this time, Xiao Wanwan ate vegetables every day, and it was estimated that he was very greedy for meat. With Lu Lingxi's words, Xiao Wanwan ate three pots of bones in one go, and ate all the dogs in the garden for their dinner.

Uncle Li looked surprised: "This Tibetan Mastiff is too edible, right? Such a Tibetan Mastiff really can't be raised without money."

Lu Lingxi originally wanted to say that it ate too much, but Xiao Wanwan's big furry face looked so cute, Lu Lingxi unconsciously raised the corners of his mouth and touched Xiao Wanwan's head like a big black.

After dinner, Lu Lingxi and Yan Yue discussed going to the river to dig some bitter grass. There is no wind tonight, but it is not cold at all outside. Yan Yue has always indulged his behavior. After helping Lu Lingxi put on the down jacket, he took Lu Lingxi in one hand and the prepared bucket in the other, and walked slowly to Lingshui River with a few big blacks.

Xiao Wanwan was very frustrated at home these few days, and when he got to the river, he began to cheer himself up. Lu Lingxi didn't pay attention before, but now he realizes that Xiao Wanwan is running really fast, and he can't see it after a while. He called Xiao Wanbao from a distance, and Xiao Wanwan ran in a circle and came back. Seeing Xiao Wanwan having a good time, Lu Lingxi patted Da Hei's head and said, "Da Hei, you can go too."

Da Hei let out a low cry and squatted calmly beside Lu Lingxi. As long as it is outside, it will not leave Lu Lingxi easily.

"It's so dark." Lu Lingxi understood what it meant, and exclaimed with frowning eyes. By the time he was talking to Da Hei, Yan Yue had already packed all the tools in the bucket. Lu Lingxi followed with a flashlight, took a picture on the ice, and found a place where the ice seemed to be thinner.

"How's it going?"

Yan Yue tapped with a small hammer and nodded.

The ice layer was soon torn open, and the water below was purified, sparkling silver under the moonlight. With the surging water, the bitter grass branches and leaves in the water stretch, very graceful and affectionate. The two had prepared tools before they came, and they carried the bitter grass near the river, took a small shovel, and shoveled the mud and plants into the bucket together. Yan Yue is now very familiar with this kind of work and does it very smoothly.

The two did not return to the courtyard with the bucket, but walked towards Songjiazhuang. Lu Lingxi wanted to test to see if another bitter grass ecological community could be formed upstream. If it is possible, then from the source of Songjiazhuang to the Lingshui River, there is no need to transplant too many evolutionary bitter grass. As long as this waterway is covered by the entire ecological community, the bitter grass in it will naturally choose to evolve homogeneously, which saves the effort of cultivating bitter grass.

As they went upstream, the water quality in Lingshui River became worse and worse. Although the plastic factory in Songjiazhuang has been dismantled, the previous pollution has been caused. Since Songjiazhuang, the entire river surface has been black. Even if the upstream water continues to wash away, it is only the difference between the shades of black. Especially in winter, a layer of ice forms on the river surface, and all the black sewage is frozen, and the bottom of the river cannot be seen from the ice surface, which is a bit scary.

Uncle Li said that since the last poisoning, the people of Songjiazhuang seemed to realize the importance of the environment overnight. This time, even if the city does not grant money to manage the Lingshui River, the people of Songjiazhuang have to put together their own money to find someone to manage it. They were really scared.

Thinking of this, Lu Lingxi stopped, "Just here."

He and Yan Yue have now left the range of Lingshui Village, about a few hundred meters away from the first ecological community of bitter grass. Yan Yue quickly dug through the ice layer, and Lu Lingxi took a small shovel to clean up the stones and glass **** near the area to be transplanted like last time. He shoveled the nearby mud for a long time and dug a few suitable holes. One, two, three, four, five... The bitter grass in the bucket is evenly distributed along the river bank, the white panel floats out, and two lines of green characters are displayed below.

Bitter grass ecological community formation, water purification +50%, reward plant heart +500

Do homologous plants choose homogenous evolution?

No need to hesitate, Lu Lingxi quickly chose yes.

As the panel floated out, Lu Lingxi faintly smelled of grass. Yan Yue looked at him tenderly and asked, "It's done?"

Lu Lingxi nodded, a little excited. His conjecture was right, so they could save a lot of things. Thoughts flashed, Lu Lingxi was about to put away the panel, when suddenly a new change appeared on the panel. The two bitter grass ecological communities are displayed together on the panel. Like the last change of the big willow tree, two green dots, one large and one small, represent different bitter grass communities, and a green line links the two together. The formed ecological community of bitter grass expanded towards both sides at a speed visible to the naked eye.

Lu Lingxi's eyes widened in surprise, and a vague idea appeared in his mind.

"What?" Yan Yue saw Lu Lingxi's abnormality.

Lu Lingxi thought about it and decided to try again. "Brother Yan, let's go back and dig some bitter grass."

An hour later, Yan Yue parked his car by the river. This time, the two of them were a little far away from Delingshui Village. If they walked, they would have to go to the early morning. The two knocked on the ice layer as before, one, two, three, four, five... The last bitter grass was planted, and a new bitter grass ecological community was formed. After the reward prompt on the panel, a third green dot appeared in front of Lu Lingxi's eyes. Lu Lingxi vaguely caught a line and told Yan Yue of his guess.

The two went to and from Lingshui Village again and again, from Lingshui Village to Songjiazhuang, and formed 7 bitter grass ecological communities along the way. When the last bitter grass ecological community appeared, 7 green light spots lighted up on the panel, and the complete Lingshui River appeared on the panel.

The formation of the primary river ecological community will reward Plant Heart +1000 and Force of Nature +5.

Lu Lingxi's eyes lit up, and his eyes were quickly attracted by the power of 5 points of nature. He still owes the panel 5 points of power of nature, and he finally has a chance to pay it off. Sure enough, the panel quickly deducted 5 points of the force of nature reward. At the bottom right of the panel, the logo of the force of nature changed from a red -5 to a green 0.

Lu Lingxi bent his eyes, and his eyes fell on the Lingshui River again. Previously, the color of the Lingshui River was always black on the panel, but with the emergence of green light spots, the black color of the river gradually faded, and a light blue background appeared faintly. Lu Lingxi guessed that this process is the purification process of the Lingshui River. When the color displayed on the panel turns blue again, it means that the purification of the Lingshui River is completed.

He let out a sigh of relief and put away the panel. The purification of the Lingshui River and the reward of the power of nature solved two worries in one night. Lu Lingxi relaxed and fell asleep on the way back.

I slept until 8am. When Lu Lingxi got up, Yan Yue was no longer around. He faintly heard Yan Yue talking to Uncle Li in the yard, as if asking who owns the land opposite the Lingshui River.

Lu Lingxi put on his clothes and washed briefly. Instead of disturbing Yan Yue, he went around to the backyard. He planned to visit the flower garden. After turning a corner, Lu Lingxi stopped abruptly. Not far ahead, the **** figure nimbly moved towards Xiao Wanhua, and bit his hair easily.

Lu Lingxi: "…"

He seemed to understand what happened to Xiao Wanwan's hair loss.

of guilt.

Lu Lingxi flicked his finger on its head and waved at Xiao Wanhua.

Xiao Wanwan rushed over aggrievedly, Lu Lingxi looked at Xiao Wanwan, and the condition on his body was exactly the same as when he lost his hair a few days ago. This discovery made Lu Lingxi speechless for a while, thinking that Xiao Wanwan had been forced to eat food for more than a week by him, Lu Lingxi was a little dumbfounded. He finally understood why he felt strange about the relationship between Da Hei and Xiao Wan before.

Da Hei shook his ears and let out a whimper.

Lu Lingxi released Xiao Wanli and patted Da Hei's head funny. "Don't bully Xiao Million in the future."

The **** rubbed his head against Lu Lingxi's palm, Lu Lingxi's heart was soft, and there was nothing to do with the big black. However, he quickly thought of one thing, "Did Brother Yan already know about it?"

Da Hei shook his head quite righteously, not betraying Yan Yue.

Lu Lingxi didn't believe it and scratched Dahei's chin, "Don't think I don't know, Dahei, just lie to me with Big Brother Yan."

"What lied to you?" Yan Yue walked over from a distance and asked with a smile.

Lu Lingxi glanced at him angrily, stretched out his hand, and in the palm of his hand was a wisp of hair that was bitten off by Dahei.

Yan Yue was stunned for a moment, the smile on his face deepened, and he laughed out loud.