在浩瀚的宇宙中,有一颗美丽的星球,之所以它会显得这样美丽,是因为那复杂多样的生物链使它富有生机,富有力量。但是,如果我们的生物链被毁坏,那在这无穷无尽的宇宙中还是否可以找到这颗美丽的星球呢? In the vast universe, there is a beautiful planet. The reason why it looks so beautiful is that the complex and diverse biological chain makes it full of vitality and strength. But if our biological chain is destroyed, can we find this beautiful planet in this endless universe? 从古到今,世界上的所有生物都是相互依赖,共同存亡的,因此,1927年时,英国动物学家埃尔顿首次提出了这个名词“生物链”。那究竟什么是生物链呢?通俗地讲,就是由动物、植物和微生物互相提供食物而形成的相互依存的链条关系。而这,在生态学上就被称为生物链。 From ancient times to the present, all living things in the world are interdependent and exist together. Therefore, in 1927, British zoologist Elton first proposed the term "biological chain". What is the biological chain? Generally speaking, it is an interdependent chain relationship formed by animals, plants and microorganisms providing food for each other. This is called the biological chain in ecology. 生物链的毁坏,首先是因为它的自然原因。,就比如,如果一种有毒物质被被草吸收,虽然含毒量浓度很低,不影响草的生长,但兔子吃草后有毒物质很难排泄,当因为它经常吃草,有毒物质会逐渐在它体内积累,而鹰吃大量的兔子,有毒物质会在鹰体内进一步积累。因此食物链有累积和放大的效应。 |