Sun Chuanfang couldn't help up, and the Japanese forced Zhang Zuolin to obey again, but Zhang Zuolin refused, and the Huanggutun bombing still happened.
Zhang Zuolin died, and Zhang Xueliang inherited the marshal of the Feng family.
In December, Zhang Xueliang decided to change banners in the northeast, declaring that he would accept the jurisdiction of the Nationalist Government.
The Beijing government was abolished, and Beijing was changed to Beiping.
The Northeast Army marched south, Chiang Kai-shek and Zhang Xueliang formed brothers, and the north and south attacked, Sun Chuanfang saw that the general trend had gone, and announced the dissolution of the army to accept the reorganization of the national government.
Sun Chuanfang became wary of the Japanese because Zhang Zuolin was killed in the bombing, and refused to follow the advice of the Japanese advisers to flee to Japan, but stayed in his hometown in Licheng, Shandong.
He said that if he lost, he would lose, and it was impossible for him to betray the country.
In desperation, Japan began to increase its troops in Kwantung and Korea.
This year, Hubei and Shaanxi had a bumper harvest and the situation stabilized.
The Jinghan Railway and the Guangdong-Hankou Railway were connected, but Henan and Jiangxi dismantled and dug up the connecting sections of the railroad for fear of an attack by the Wuhan government from the railway line.
The Wuhan-Yichang railway has also begun to lay tracks, using heavy-duty rails.
The railway from Xiangyang to Yichang also uses heavy rail.
The rest of the intercity railways are light rail.
The railway from Xiangyang to Yunxi also began to lay tracks.
Yunxi to Xi'an, Yunxi to Hanzhong because of the full consideration of animal migration and environmental factors, there are a large number of bridges and tunnels, so the construction is much slower.
In fact, the transportation system in Hubei is also being transformed, but fortunately, the transportation system in the old area extends in all directions, and the transformation of a single line will not affect people's travel, but just a little detour Shaanxi's transportation network has taken shape, and the government has been providing cash-for-work for a year.
It gave farmers a chance to breathe, plus a bumper grain harvest.
The migrant workers who built the road were sent home in large numbers, and all that remained was to form a special construction company to further renovate.
With the resumption of production and construction in various places, it has been opened one after another.
Feng Yuxiang felt relieved, unprecedented peace of mind.
Because he thinks of the current situation, he thinks what Zhang Chun said at the beginning, even if he loses the battle once or twice, he will not lose his foundation.
In 1929, just after the New Year, Zhang Chun set off to Shaanxi with two investigation teams, the Agricultural College and the University of Geosciences.
Li Siguang personally led the team this time.
Just to extend the oil field.
During the Qing Dynasty, the Yanchang area attracted the attention of both domestic and foreign people, and it was the Japanese who began to engage in exploration.
In 1907, the first onshore oil well in China was drilled in Yanchang County.
The first onshore oil refinery in China was built, and in 1910, a Japanese doctor of science, Otsuka, came to extend the geological survey.
In 1914, Yuan Shikai signed the Sino-US Joint Oil Mine Contract with the United States.
Puli Petroleum Company was established.
The Americans carried out a rough geological survey of an area of 50,000 square kilometers in three years, and drilled 7 wells, but all of them contained very little oil.
"China's hat of an oil-poor country is buttoned up.
The oil production of the Jianghan Oilfield actually verifies the theory that there is oil in the basin depression, that is, there will be a large amount of coal resources without oil.
Therefore, there is indeed hope for oil production in the Shaanxi-Gansu-Ningbo Basin.
And Zhang Chun believes that if there is oil in this place, it will be enough to support an air force and armored force.
And they were not afraid of the armored corps of Soviet Russia.
Lu Zhonglin and Ye Ting were stimulated by the news.
They all asked for battle from the front enemy headquarters.
Lu Zhonglin's troops pushed to the edge of Dongsheng and the Yellow River.
Ye Ting and Zhou Rong crossed the North Mountain and advanced to Guyuan.
Tianshui, Longnan line.
Ma Hongkui expressed his willingness to accept the adaptation, but also put forward a request for Ningxia autonomy and asked Feng Yuxiang to intercede.
However, Feng Yuxiang said that he is now concentrating on construction, and he cannot manage the affairs of the army.
Liu Ying and Mao Shishan thought that they could no longer engage in any petty warlords, and rejected Ma Hongkui's request.
This made the Northwest Zhuma feel threatened, so they began to form a coalition army to fight against the Wuhan government.
And Liu Ying, Mao Shishan, Liu Bocheng and others also believed that the troops were not ready to face the cavalry on the plain, and temporarily stopped advancing.
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For the armored corps is even more desired.
In terms of agriculture, the span of Shaanxi is too large, and the two climatic conditions in northern and southern Shaanxi are completely different.
In the course of a year, half of the room was filled with students' survey reports.
However, there is still no overall understanding and reconciliation method for northern Shaanxi and the Hetao region.
Transplanted trees, including biogas digesters, have also been degraded and unadapted due to environmental factors.
The digester is a little better.
Plans to restore vegetation are considered to be wrong, at least not in terms of species selection, and more investigation is needed.
"The Weihe Plain is also the Hanzhong Plain, although it is still the Miliangchuan, and the rain here is much less than that of the Qinba region.
Coupled with a densely populated environment that is entirely agrarian, the biota of the soil is thin and very fragile, completely controlled by the farming season.
The treatment here mainly increases the variety of crops, increases the amount of straw returning and farm manure.
Protecting the forests on the slopes of the valleys, combined with the transportation system, restoring part of the forest area and forming a corresponding irrigation system. ” In charge of the Hanzhong Plain, there was an agronomy professor named Wei Liang.
"The environmental recoverability of the Hanzhong Plain is good.
But there are some troubles in forestry.
There are few traces of the original state of vegetation to be found here.
Biodiversity is very poor and we don't have a frame of reference. ” "Don't worry, if it really doesn't work, it will be widely introduced and the fittest will survive.
However, I recommend that pine, spruce, and fir be the main grasses, and Artemisia and chrysanthemum should be the current grasses.
The evolution of the forest here will be slower, and for the secondary forests that already exist, since they exist, there must be a reason for them.
So what needs to be done is to combine conservation with the introduction of new species to promote forest evolution.
Don't underestimate these forests, which can greatly delay the loss of rainwater during the rainy season and increase the water vapor flux in the air.
When the environment as a whole moves in this direction, precipitation also increases.
It also has a certain ability to resist cold waves.
Zhang Chun comforted.
Feng Yuxiang was sitting like a student, he put on his glasses and took notes: "That is, the temperature will rise?"
” "This is not necessarily, Hubei had heavy snowfall last year, because the cold snap encountered relatively stable water vapor in the Huze area, so snowfall was formed.
After the snow fell, it didn't melt away quickly because of the forest.
We know that snow and ice melt to absorb heat.
With such a heavy snowfall, the temperature has dropped a lot lower than usual, and the duration has also been extended. ” "Yes, the prolonged period of cooler temperatures has led to changes in the biological cycles of many insects and microbes.
Just miss the flowering period of some crops.
So The yield of some crops will increase, but it will also lead to a decrease in the yield of some crops.
That's the benefit of crop diversity, and it doesn't lead to famine because of a loss in the yield of one crop.
Shaanxi's agricultural defect is here, too simple.
The resistance to locust plagues, wind disasters, climate change, etc. is too poor.
Wei Liang added.
Zhang Chun said with a smile: "Don't worry, this kind of evolution is not formed at one time, it needs a process.
Hubei's experience shows us that as long as a virtuous circle is formed, evolution will accelerate.
For example, the increase of humus in the soil will also delay the loss of water, and the increase of humus and water will promote the increase of microorganisms, which also has a promoting effect on the growth of plants.
The root system of plants slowly increases the thickness of humus in the soil, and plants attract animals such as rodents to move underground.
They will carry the food underground.
So don't think of rats as harmful, in fact, in the long run, rodents are a kind of plough that can be ploughed deeply.
Rodents are called disasters because our crops are too simple.
Rats don't eat everything, and they don't store food all the time.
The other thing is that we need to protect the natural predators of rodents, such as snakes, eagles and other animals.
That's the power of the biological chain.
Some students say that it is the Heavenly Dao system, which is also reasonable. ” Feng Yuxiang sighed and said, "It turns out that the agriculture and rodent extermination we promoted in the past were all wrong. ” "This can't be rushed, the use of species, turning a species into crops is also successful through the efforts of the students.
For example, nuts and fruits such as pine nuts and acorns, such as some rhizomes, require a certain processing technology to turn into food.
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Species also provide us with a variety of fibers, resins, furs, meats, oils, and more, and the more diverse the species, the more we get. ” Li Siguang listened to it with amusement and said with a smile: "Strictly speaking, oil and coal are all provided to us by species.
Biogas technology is merely advancing this evolutionary process. ” Zhang Chun laughed: "Yes, that's the case."
By the way, when surveying the stratum soil of the geological institute, you should pay attention to it, these strata and soils will be mixed with the remains of biological populations of that era, and you will regret ignoring this.
Forestry says they don't have a frame of reference, and you might be able to provide them with one. ”