The trees have the very vital role regarding the protection nature ecological equilibrium. In the last century world's forest probably reduced 1/4. The biodiversity receives the destruction, the one who is threaten finally is the humanity. Our country in the recent 10 years discovered already exterminated the precious wild animal reaches 18 kinds, receives the wild animal which exterminates the threat to reach the nearly thousand kinds. Now in the global higher plant the endangered species reach 5000 kinds, causes 40,000 living thing's survivals which is connected with it to be threaten. “life Pyramid” the theory tells us, the humanity is that stone which Pyramid goes against, millions of plant, the animal will compose the Pyramid tower body, the tower have experienced personally to the destruction will certainly to endanger the humanity the survival. The concerned expert has conducted the special research to plant's environmental protection function, 10 meter high big trees, it creates every year environment value between 1000 Yuan - 5000 Yuan. The plant regarding the environment protective function is various. It carries on the photosynthesis, the manufacture oxygen; It absorbs in the air the dust, the carbon dioxide and so on deleterious substance, crisp air; It also reduces the noise; It provides for the wild animal perches the place, to provide food; It beautifies the environment, has the aesthetic value; It also protects plant gene and so on. Therefore we must from the protection environment high science understanding loving care flowers and plants woods importance, on own initiative cherish the flowers and plants trees. Participates in the tree-planting positively. |
| 公开选拔和竞争上岗>元旦高速公路免费吗? 树木对于保护自然界生态平衡具有非常重要的作用。上个世纪世界上的森林大约减少了1/4。生物多样性受到破坏，最终受到威胁的是人类。我国近10年来发现已经灭绝的珍贵野生动物就达18种，受到灭绝威胁的野生动物达近千种。现在全球高等植物中濒危物种达5000种，导致与之相关联的4万种生物的生存受到威胁。“生命金字塔”理论告诉我们，人类就是金字塔顶上的那块石头，千千万万的植物、动物组成了金字塔塔身，塔身受到破坏必将危及人类的生存。 建筑安装工程承包合同 |
有关专家对植物的环境保护作用进行了专门的研究，一棵10米高的大树，它每年创造的环境价值在1000元南京旅游景区—5000元之间。植物对于环境的保护作用是多方面的。它进行光合作用，制造氧气；它吸收空气中的灰尘、二氧化碳等有害物质，清新空气；它还减少噪音；它为野生动物提供栖息场所、提供食物；它美化环境，具有美学价值；它还保护植物基因等等。所以我们要从保护环境的高度科学认识爱护花草树林的重要性，自觉地爱护花草树木。积极参加植树。 |
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