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At 5 pm on September 1st, Zhongjiang International Airport Housing Hall.

Song Qinghe smiled and greeted an old man who had just walked out of the airport passage.

"Teacher Lin, you are here." Song Qinghe took the old man's luggage diligently while enthusiastically asking about his well-being.

The old man, known as "Teacher Lin", is about 50 years old, with a bit gray hair, a white shirt on his upper body, and a meticulous button; a pair of jeans on his lower body and a pair of sneakers on his feet, and he looks very energetic. The old man's name is Lin Yusen, the director of the Animal Research Institute of Central South Agricultural University, a famous domestic animal research authority, and was also the tutor of Song Qinghe when he was studying for a doctorate.

"Teacher Lin, I really didn't expect you to come to Zhongjiang," Song Qinghe said with concern: "Can you adapt to such hot weather?"

"It's okay," Lin Yusen said with a smile: "The college will not start classes in late September. It's rare that I have time recently, so I happened to come out for a walk."

Song Qinghe smiled slightly. The teacher would never be "out for a walk". If the call he called him the day before yesterday aroused the teacher's interest, as a famous zoology authority in China, how could the teacher fly to the sultry Zhongjiang City on the third day?

Sure enough, when Song Qinghe arranged Lin Yusen to stay in a hotel, the teacher refused to even eat and asked Song Qinghe to take a seat at the teahouse on the second floor of the hotel.

"Xiao Song, let's talk about the abnormal migration of wild beasts in the Qinba Mountains. Well, let's be more specific." Lin Yusen asked impatiently as soon as he sat down in the teahouse.

Song Qinghe was not in a hurry, so he called the waiter to ask the teacher for a set meal, then ordered a pot of green tea. After the waiter brought the set meal up, Lin Yusen started to eat, he repeated what Liu Xiao said in detail.

Lin Yusen hurriedly finished the meal and listened with relish with her teacup. When Song Qinghe finished speaking, Lin Yusen's expression became a little heavy.

"Tell me what you think," Lin Yusen asked.

"I have a bold guess," facing his teacher, Song Qinghe brought out his immature thoughts without any burden: "The Qinba Mountains mainly use bamboo as a covering. Will the abnormal migration of animals be because bamboo in the mountainous areas will bloom in advance? You also know that bamboo will die as soon as it blooms, and animals will lose the environment on which they rely on to live, so they will migrate. However, bamboo usually takes a cycle of 60-120 years, and bamboo forests in the Qinba Mountains have survived less than 10 years. It is lack of scientific evidence to predict that their early blooming will be."

"Who said that bamboo must take a cycle of 60-120 years?" Lin Yusen shook his head gently and said: "Recently, the Bamboo Research Institute of Z Provincial Forestry College has deciphered some genes for bamboo flowering, and has successfully applied the bamboo flowering gene to rice through genetically modified technology, greatly increasing the yield per unit of rice. Research shows that the flowering of bamboo plants depends on the amount of carbohydrates accumulated, and is also affected by natural environments such as drought and rain. In the past, the natural climate remained relatively stable.

In the current situation, the annual rainfall is roughly balanced, so there will be a 60-120-year cycle of bamboo blooming. In recent years, the global climate environment has deteriorated sharply, and heavy rains and droughts have occurred continuously. Such a natural environment must have had a huge impact on the flowering cycle of bamboo. For example, in 2007, in the Niangniang Mountain Giant Panda Nature Reserve in Foping County, Xiaxi Province, Bashan Wood Bamboo and Qinling Arrow Bamboo bloomed early, resulting in the death of a large number of giant pandas. Therefore, it is entirely possible that bamboo in Qinba Mountains may bloom early."

"But this is just one of our current assumptions," Lin Yusen was very calm: "The prerequisite for the assumption is that bamboo forests bloom early in the mountainous areas of the western part of Yizhou Province. If this is not the case, the imagination of bamboo blooming in some areas will be far less serious."

"Even if bamboo forest blossoms occur in local mountainous areas, millions of mice will be added," Song Qinghe recalled a record he had read: "In 1958, the so-called Showa 31 in Japan, tens of thousands of hectares of short bamboo bloomed together with Kiso Mitsuki, causing local mice to breed explosively millions. The huge group of rats swept away thousands of hectares of crops, and the group of rats who had eaten all their food rushed to the streets of the city and blocked traffic, competing for food with humans, and the entire city was almost paralyzed."

"It's just that the bamboo forests in some mountainous areas have bloomed early?" Lin Yusen murmured. Could it be that the abnormal migration of animals in the Qinba Mountains only bloomed in some mountainous areas? Lin Yusen shook his head, an unknown premonition lingered in his heart.

"Teacher, how should we judge whether the bamboo forests in the mountainous areas will bloom at the same time or the bamboo forests in some areas will bloom?" Song Qinghe asked.

"Only by going to the mountainous area for on-site inspection, if the bamboo forest in the mountainous area will bloom at the same time, the sign is that the phenomenon of 'early blooming' occurs. The bamboo forest that 'early blooming' looks like thin yellow smoke and clouds. It will bloom at the same time in the next year." Lin Yusen waved his hand: "Didn't you have an appointment with that reporter friend to go to Qinba Mountains tomorrow? Let's go together!"

Note 1: The rat disasters in India and Japan described in the article are all found in historical records, and are not fabricated by me.
Chapter completed!