浮游植物与陆地植物一样，它们拥有叶绿素来获取阳光，并利用光合作用奖其转化为化学能量。
Like land plants, phytoplankton have chlorophyll to capture sunlight, and they use photosynthesis to turn it into chemical energy.
这也是海洋形成其化学成份的例子之一：不只是从陆地上随江河流入海里，海底火山喷发时也给海洋注入新的化学成份。
This is also an example of how the ocean acquires its chemical makeup. It's not just run off from the continents, but also injection and chemical exchange caused by submarine volcanoes.
土壤有机碳是陆地生态系统碳库中的重要组成部分，对土壤的物理、化学和生物学性质有深刻的影响。
Soil organic carbon plays an important role in terrestrial ecosystem carbon pool, and has profound effect on soil physical, chemical and biological properties.
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