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在地球上,经过自然界亿万年的演化,不同的生物与生物、生物群落与非生物环境之间形成了极其复杂的相互作用与相互依存的关系,大鱼吃小鱼、小鱼吃虾米、虾米吃水藻……由此连成了一根根生命的链条——食物链。各种生物、非生物通过制约、转化、补偿、交换等作用,总是处于一种相对稳定、微妙的平衡状态。倘若其中一种生物的存亡或数量发生变化,就会通过生命的链条影响到其他生物乃至整个自然界。人类常常由于不能正确认识和理解生态系统中的这种普遍的联系而盲目行动,破坏了自然界的生态平衡,拉断了生命的链条,从而引发了一系列严重的后果。
On Earth, after hundreds of millions of years of evolution in nature, the complex interactions and interdependencies between different biological and living things, biomes and non-living environments have formed extremely big fish to eat and fish to eat shrimp, Shrimp eat algae ... ... This has become a root link in life - the food chain. All kinds of biological and non-living things are always in a relatively stable and delicate balance through the functions of restriction, transformation, compensation and exchange. If one of the living things changes in quantity or quantity, it affects other living things and even the whole nature through the chain of life. Human beings often act blindly because they can not correctly understand and understand this common link in ecosystems, undermine the ecological balance in nature and pull off the chain of life, causing a series of serious consequences.