| 释义 |
生态平衡shēngtài pínghéng一个生物群落及其生态系统之中,各种对立因素互相制约而达到的相对稳定的平衡。如麻雀吃果树害虫,同时它的数量又受到天敌(如猛禽等)的控制,三者的数量在自然界中达到一定的平衡,要是为了防止麻雀偷吃谷物而滥杀,就会破坏这种平衡,造成果树害虫猖獗。{ecological balance; relative stability among antagonistic elements that restrict each other in a community of living organisms and ecological system. For example, sparrow feeds on the destructive insects of fruit trees, but at the same time its population is controlled by its natural enemy (such as birds of prey). The populations of the three maintain a certain balance in the natural world, and the balance is lost if sparrows are killed wantonly just to prevent them from eating grains, and as a result, fruit tree pests will go rampant.} |