Planting performance of fast-growing eucalyptus

In the folk, fast-growing eucalyptus has the notoriety of "water pump", "fertilizer pump" and even "poisonous tree species"

It was planted on a large scale in Guangxi around 2000. At that time, restricted by the international market, China urgently needed to promote the forestry-pulp-paper integration project to get rid of the plight of pulp shortage. Fast-growing eucalyptus is strongly advocated in Guangxi because of its short growth cycle. In the past ten years, the area of fast-growing eucalyptus in Guangxi alone has reached more than 26 million mu, accounting for half of the country. It not only propped up the forestry-pulp-paper integration project in Guangxi, but also provided nearly 1/3 wood for the whole country every year. However, while the fast-growing eucalyptus is affirmed, the voice against planting is getting stronger and stronger, and there are many officials. 1, beautiful environment

With the increase of planting area of fast-growing eucalyptus, fast-growing eucalyptus is planted in many places around highways, railways, units and individual houses. Eucalyptus has unconsciously entered our living space, bringing us green and beauty. The greening rate is constantly improving, and many areas that used to be barren are covered with green clothes. When it rains, the rain first passes through leaves, branches and trunks and then slowly seeps into the surface, which is beneficial to vegetation water conservation and avoids soil erosion caused by rain directly washing the surface. Returning sugarcane to forest and planting fast-growing eucalyptus on some slopes are also more conducive to soil and water conservation. In a word, planting fast-growing eucalyptus beautifies the environment and improves the ecology.

2. Better structure

Pinus massoniana is the main species in southwest China, with single tree species and forest species, which is prone to forest fires. By constructing high-yield forest, planting fast-growing eucalyptus on a large scale, and retaining some well-growing Pinus massoniana, the forest tree species will be transformed from a single coniferous forest to coniferous forest and broad-leaved forest, increasing tree species diversity, guiding the forestry industry to develop into a multi-tree and multi-structure forestry system, and fundamentally optimizing the forestry structure.

3. A base was built.

The national development of forestry-pulp-paper integration supports the significance of planting fast-growing eucalyptus trees to some extent. The state regards Guangxi as a commercial forest base and promotes the integration of forest pulp and paper. Many places regard the construction of raw material forest base as the "number one" project, and have established fast-growing eucalyptus raw material forest bases in succession.

4. Wealthy farmers

The growth cycle of fast-growing eucalyptus is short, and the output of eucalyptus in each cycle is 2-3 times that of coniferous trees, 7- 10 times that of coniferous trees, and the output value is also 7- 10 times that of coniferous trees. Especially, the integration of forest pulp and paper has improved the commercialization of eucalyptus, provided more extensive employment opportunities for rural labor, greatly increased farmers' income and fully mobilized farmers' enthusiasm for afforestation. Some problems and defects in the development of eucalyptus should be treated objectively and rationally, analyzed scientifically and solved step by step. If eucalyptus is planted in water source forest and agricultural land, it is not the fault of eucalyptus itself, but the afforestation owner has not done it according to the national policy requirements. In some places, eucalyptus is planted on the hillside above 35 degrees, and eucalyptus is cut down in a large area. These wrong practices can also be changed through strict afforestation regulations. He also said that there were no birds in the sky and no grass on the ground. That is, water pumps, fertilizer suction machines, polluted water sources, etc. They don't know the situation, they just hear it through hearsay. Some also require eucalyptus not only to provide abundant wood, but also to maintain and improve plant diversity, which is too high for eucalyptus. So far, through scientific argumentation, there is not a shortcoming of eucalyptus that people can't accept.

In short, the development of eucalyptus should be viewed scientifically and evaluated objectively. We should not only affirm the great contribution made by eucalyptus, but also clearly understand the existing shortcomings and seriously study and solve them. 20 13,16543817 October, Secretary Peng Qinghua made an important speech after listening to the forestry work report. In his speech, he pointed out that "a lot of eucalyptus trees have been planted in recent years, and first of all, we must affirm the contribution of eucalyptus trees in these years. Guangxi ranks first in greening and timber production in China, mainly relying on fast-growing forests, among which eucalyptus is one of the main varieties and has made contributions. At the same time, it is necessary to gradually adjust the tree species structure according to the actual needs, so as to diversify the eucalyptus and stand structure. Don't deny that this kind of eucalyptus grows eucalyptus. "