换句话说，这些空地上的有机物分解并进入土壤的速度比周围森林中的更快。
In other words, organic matter gets broken down and added into the soil more quickly in these gaps than in the surrounding forest.
常常使用生化需氧量，即有机物分解所需的氧这个单位进行测量。
They are commonly measured in units of biochemical oxygen demand (BOD), or the amount of oxygen needed to decompose them.
植物在光合作用的时候会释放氧气，但是有机物分解时也需要相同量的氧气。
Plants emit oxygen while they are photosynthesising, but the same amount of oxygen is used up if the carbon compounds they make are broken down.
应用推荐