Indeed, with the deaths of so many other animals and with much dead plant material, the food chain based on detritus would have been well-supplied.

事实上，由于许多其他动物的死亡以及植物的大量枯萎，基于腐殖质的食物链本会得到很好的供应。

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Because of similarity of chemical character, Zn and Cd give birth to accompany always, go to the plant by soil, then endanger the human health through the food chain.

由于化学性质相似，锌、镉在自然界总是伴生、伴存而造成伴随危害，经土壤到植物，继而通过食物链危害人类健康。

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Heavy metals accumulated in plant roots, stems, leaves and seeds, which will not only seriously affected plant growth and development, but also entered the food chain and endangered human health.

重金属在植物根、茎、叶及籽粒中的大量累积，不仅严重地影响植物的生长和发育，而且会进入食物链，危及人类的健康。

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In fact, this process is comparable to the use of fertilizers in agriculture, i.e. adding nutrients that are found to be lacking in the local environment to stimulate plant growth, in this case phytoplanckton that form the base of the marine food-chain.

UNESCO: MEDIA SERVICES