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每年3月可谓树木的节日,3月12日是我国的植树节,3月21日是世界森林日,这一天全世界都关注树木。植树造林已成生态环保重要内容,防风固沙要造林,水土保持要造林,改善环境要造林。这些都说明公众对环境认识的提高。然而,今年3月12日植树节,一些倡议大家踊跃植树的宣传海报上,竟然全是桉树。做任何事都要遵循自然规律,植树造林也不例外。那么,全部种植单一树种有什么危害呢?首先,种植单一树种容易造成“绿色沙漠”。从生态
March each year can be described as the tree festival, March 12 is China’s Arbor Day, March 21 is the World Forest Day, the day the world is concerned about the trees. Afforestation has become an important eco-environmental protection, windbreak and sand fixation to afforestation, soil and water conservation afforestation, to improve the environment to afforestation. All this shows that the public’s awareness of the environment. However, on March 12 this year, Arbor Day, some initiatives we all enthusiastically planted tree planting posters, even entirely eucalyptus. Do anything to follow the laws of nature, afforestation is no exception. So, what is the harm of planting all kinds of single tree species? First of all, planting a single tree species can easily lead to a “green desert.” From the ecology