There's a word that's been very popular lately, it's called"Establish first and then break".from the high-level meeting on December 8. In the end, what is meant by "establishing first and then breaking", people from all walks of life expressed their opinions and expressed lofty opinions.
Looking back on the economic practice and governance exploration since the reform and opening up, we find thatIn fact, it is a basic experience for China to cultivate new industries and new growth points。For example, the rise of the Internet economy, the wave of private enterprise car manufacturing, the comprehensive breakthrough of new energy, the digital intelligence of the manufacturing industry and other phased hot spots, all along the path of adhering to traditional industries, developing emerging industries and then driving the transformation of the whole industry, vividly deduced the process of first establishing and then breaking.
The same,In the process of finding alternative eucalyptus species, we should also insist on "first standing and then breaking". After all, stability is paramount.
"Li" is a process of the growth of new things, but "breaking" does not mean annihilation, but the process of constantly upgrading and iteratively realizing nirvana with the needs of the times.
Once upon a time, Guangxi's eucalyptus took advantage of the east wind of China's economic rise, with land resources and rain and heat conditions, mastered the core technology of eucalyptus cultivation, and under the joint promotion of policy, market, capital and labor, it has achieved rapid developmentIn just 20 years, the eucalyptus planting area has expanded from 2.5 million mu to 45.5 million mu, and the timber output accounts for more than 8% of Guangxi's output
No one is perfect, and no one is perfect."
As an introduced tropical tree species, eucalyptus has many advantages such as fast growth and fast growth, more timber and good benefits, but it is not perfect and existsThe rotation period is too short, the management intensity is too large, and the tree species is too single.
First, there are shortcomings such as low biodiversity.
In particular, large-scale excessive purification of forests, burning of forest land for mountain refining, and abuse of fertilizers, pesticides, herbicides, and other improper management methods have indeed had a negative impact on soil and water conservation, water conservation, and water quality, and the living conditions and living environment in rural areas have deteriorated significantly.
In fact, the search for and trial planting of alternative eucalyptus tree species has already been carried out across the country, such as Guangxi, as early as the promotion of the planting of eucalyptus at the same time, but also at the same time to promote the planting of acacia and other tree species, although there is no hype, but also achieved some results.
In particular, Guangxi has carried out the transformation of pure eucalyptus forests in recent yearsThe mixed mode of eucalyptus and native tree species and precious tree species such as Eucalyptus chinensis, Dalbergia chinensis, Rice Lao Pai, Red Cone and Acacia chinensis was explored, and alternative tree species such as Acacia nigra, Lvtong and Cinnamomum camphora were preliminarily selected。Although alternative tree species have been screened and small-scale experimental planting has been carried out, it is only preliminary, and there is still a long way to go before the real large-scale promotion of planting, and there is still a long way to go before the real "establishment" ......
For example:Ma Zhan Acacia, almost at the same time as eucalyptus, was popularized and planted. Practice has proved that although Acacia mazhan grows faster and has a wide range of uses, it has a fatal drawback, that is, it is not cold-tolerant. In the 2008 ice and snow disaster, the Mazhan Acacia planted in Yulin, Wuzhou and other places was seriously affected, almost completely wiped out, and several years of investment were almost lost overnight.
In recent years, scientific research institutes have increased the research on variety selection and cultivation technology, and have also launched new varieties such as Acacia chinensis. "Once bitten by a snake, ten years afraid of the well rope", whether these new varieties of acacia can have stable growth performance and market demand like eucalyptus needs to be further verified.
Another example is the one that once blew very loudlyWhite-flowered paulowniaThe main trunk is straight, the leaves are huge, the growth rate is extremely high, and the vigorous period is almost visible to the naked eye, and there are companies in the society that specialize in promoting planting.
We know that paulownia wood is light, tough, low density, good texture, can be used to make furniture, etc., and because of its good sound conductivity, it can also be used to make pianos, speakers, etc., but if it is really planted on a large scale, large-scale application in the world, how large the market capacity, etc., there is great uncertainty, and the industrial prospects are not clear.
Another example is camphor, which has certain requirements for soil and climate;Ren bean, very fond of calcium, alkaline soil ......
We know,The selection of tree species is a very serious matter, based on the three principles of the right tree in the right place, the realization of the purpose, and the market demand, sloppy, and in a hurry.
To be sure, eucalyptus can be substituted for other species in one way, such as bamboo to make paper, pine to rotary cutting, and camphor to make furniture ......But so far, there is no single tree species that can have several uses for eucalyptus at the same time, and more importantly,Eucalyptus has achieved large-scale farm planting and industrial production, which is a real huge benefit
Until a better, faster, and more profitable alternative to eucalyptus is found, it is simply unrealistic and impossible to replace eucalyptus trees with a simple one-size-fits-all approach.
As the so-called "first establish and then break", we must first find better tree species, master technology, establish industries, and make progress together with eucalyptus, so as to drive the transformation and upgrading of the whole industry.
A certain leader once said: It is better to have trees than no trees, and I don't believe that after planting eucalyptus, the ecological environment will be worse than the original barren mountain. Before finding a tree species that is better and more profitable than eucalyptus, we can only plant eucalyptus trees and find them that can be replaced, but before we find them, we must not ask the masses to cut down eucalyptus species and those tree species with poor efficiency.
So,In the future, eucalyptus will still be the main plantation tree species in Guangxi, and the eucalyptus industry will still be the pillar industry in Guangxi
There is no doubt about this.