Guangxi belongs to area of semi-tropical monsoon climate, be pregnant with resource of a large number of valuable the content that use plant. Teem with a fruit especially, be known as " the countryside of the fruit " , main breed has firedrake fruit, guava, litchi, Jin Jie, tangerine, longan. But there still is a kind of plant in Guangxi is to become piece into piece cultivate, be in a country or be a county hoping to make a mountain is these tree, these tree are called fast unripe eucalyptus, also somebody is called ash.
AshWhat is ash? Ash (Eucalyptus Robusta Smith) call Youjiali the tree again, it is myrtle division, eucalyptus belongs to floral a general designation. Chang Lugao large tree, about more than 600 kinds. Evergreen, there is the appearance that periodic withered leaf falls off inside a year, mostly breed is lofty arbor, minority is small tree, those who submit bush form is very few. Leaf can be divided for young condition leaf, intermediate leaf and mature Xie San kind. Country of origin basically is in Australia mainland, 19 centuries introduce a fine variety reachs the world each district, to 2012, have 96 countries or area help advance somebody's career. Have a variety of value such as officinal, economy. The harm: of ash? Does Bin of impossible of barium of Qia Ju predestined relationship love bursa of Shan of of bits of bell of Liu of Nai of of of ⒃ of of copy ⒃ to plant Pu bath?
The growth of ash the environment is mixed in unripe Yu Yangguang's enough Campagna, hillside wayside. Great majority of ash country of origin grows in Australia mainland, the new Guinea that little part grows at vicinity island, Indonesia, and Philippines. 19 centuries introduce a fine variety reachs the world each district, up to 2012, have 96 countries or area help advance somebody's career. Main distributinging center is in Oceanian, the Fujian that is in China, Guangxi, Guangdong, Yunnan and Sichuan and other places have distributing a certain quantity ofly.
So did the issue come? Cultivate ash harmful? Can ash destroy zoology environment really?
Ash is truncal tall, root system develops, rising effect is big also, so-called pump, cause edaphic sand easily to change, land fertility drops and even dried up go against other plant to grow. Still can cause land to degrade, circumstance of water and soil conservation is exasperate, land is barren, when arriving again introduce a fine variety is other the plant cannot survive at all. Can grow in commonly year fall the area of 500 millimeter, year it is better that fall exceeds 1000 millimeters to grow. And the water natural resources with circumjacent to ours ash also has certain pollution and effect.
Because this reason has some of person to begin boycott to cultivate ash, think ash destroys the killer of zoology environment namely, the land that can let us is destroyed after be in land because barren and cannot grow other things. The government begins to realize the harm sex of ash is in those who control the villager to cultivate gradually. Think to should not expand cultivate limits, because go against the tree of fountainhead self-restraint and protection,plant do not answer grow.
"Economic value "The growth of ash is periodic very short, after be being cultivated commonly 3 it is OK to arrive 5 years harvest. China enters development of economic high speed now, very much industry is badly in need of lumber, so the demand to lumber also is very big. So ash brought value for industry not just, also brought economic benefits to other industry. And ash still can use papermaking, oil refining. Ash also is not so terrible be in a country at least is a kind of method that can help a farmer take off deficient.
I think every thing has its two sides sex, have the one side with bad good also one side like this ash. Institute of environment of zoology of the Chinese Academy of Sciences of the doubt that is aimed at a few ash, doubt, China is southwest Lin Xue courtyard and national forestry bureau, also be to make a response.
Ash is " pump " , meeting blot moisture causes drought. Is this: of the commonnest to ash a doubt? Fei of of Huo of Kang Jiao of Zou of Xian of Qia Tao Yang is foolish impossible filter provides dinner for charm land carries to pull? pump " to cause land drought, source of water euqally dried up. To this, the result that studies scientificly proves however, ash uses efficiency and other conifer to what water divides the photograph is taller than comparativing, the effect that eucalyptus woods produces on fountainhead self-restraint, water and soil conservation, climate adjustment, plant unlike other tree inferior. Much on-the-spot observation experimentation also makes clear, ash does not cause drought directly. The person such as scientist Bailly is as long as the data that 8 years observation must come to also shows, eucalyptus of great part of a historical period forest major moisture infiltration in soil, can maintain natural environment effectively instead.
Ash is " of tree of " Xiang Yu the Conqueror, can restrain other species to grow. Somebody points out, ash is agrestic to place, produce formerly, the species that is born formerly has great restrain a gender, other species cannot exist together with it. Really, according to judgement of scientific general knowledge, ab extra species is opposite likely truly environment of native land zoology causes a harm. But scientific research also discovers at the same time, having the exotic plant that harms a gender is herb entirely almost, and the ash that serves as arbor, its zoology endangers a gender to have not get confirming truly. In addition, one part tree is planted phenomenon of the juice that plants to another part tree or feeling of corrupt Xie Min, also be the normal phenomenon of nature. Peninsula of Guangdong thunder city ever had undertaken investigating to this, and research also shows as a result, diversity of local forest plant because cultivate ash,did not reduce.
Also need not check completely cultivate ash, cultivating ash after all is not complete it is disadvantage, but want us to be in only cultivate while protect good land, the modes of life and relation to their environment that does not go destroying land is good.
What to have 3 farming problem, understanding is newest 3 farming information pays close attention to me, one is in 3 farming add what there is pursuit to the dream has feelings on media oneself to be not entered flowing is my latent capacity.
