BSC 2011 Lecture Notes - Lecture 37: Nitrobacter, Nitrifying Bacteria, Chemotroph
21 Apr 2015
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Bsc2011 - integrated principles of biology 2 - lecture 37: ecosystems part 2. Element cycling in ecosystems: there is continual recycling between the organisms and the physical environment, nutrients, unlike energy, are retained within the ecosystem. Pool where energy (carbon) or nutrients are stored. Flux movement of energy or nutrients between pools . Flux in flux out/in pool a pool b. If we were to follow any given nutrient through time, there would be a continual alternation between living and nonliving compartments of the ecosystem. Gains and losses from outside of the ecosystem are small when compared to the rate at which nutrients are cycled within the system. Ecosystem element cycling can be driven by an organism"s need for growth, or by an organism"s need for energy. Npp in terrestrial systems may also be limited by nutrients. Rock which pool stores the most nitrogen? a)soils b)ocean c)rock d)atmosphere e)plants.
