高考生物:生态保护与生态工程

A high-school biology practice set on ecological conservation and ecological engineering: matter cycling, ecosystem stability, community succession, and the five basic principles of ecological engineering including self-sustainability and biodiversity.

  • Explain how submerged plants accelerate the cycling of inorganic nutrients in a lake ecosystem
  • Distinguish resistance stability from resilience stability and their inverse relationship
  • Compare primary and secondary succession and the effect of human activity
  • Identify which ecological engineering principle a given restoration design demonstrates

高考生物:生态保护与生态工程 — 生物多样性、生态恢复、稳定性、污染治理和生态工程原理。

示例问题

在一个封闭的淡水湖泊生态系统中,若引入某种能够快速消耗氮磷营养盐的沉水植物,短期内该湖泊的物质循环会发生什么变化?

查看答案

水体中无机营养盐的周转速率加快

沉水植物通过吸收水体中的无机氮磷进行光合作用,将其转化为有机物,从而加速了无机营养盐进入生物群落的周转过程。选项A错误,因为植物吸收的是现有盐分;选项C错误,分解者活动不会被抑制;选项D错误,初级生产力通常会因营养结构优化而提升。

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