Denter for Forest Mycology Research, USDA-Forest Service, Forest Products Lab, PO Box B, Palmer, PR 00721, USA.
Trends Ecol Evol. 1994 Oct;9(10):384-7. doi: 10.1016/0169-5347(94)90060-4.
Recent research shows that nutrient fluxes are often pulsed In tropical forests, and that pulsed versus gradual inputs have different effects on the fates of nutrients in the ecosystem. Synchrony of nutrient mineralization with plant uptake can lower competition between microbes and plants for limiting nutrients while maintaining tight nutrient cycling, whereas asynchrony can lead to losses of nutrients from the system. Thus, nutrient pulses may play a critical role in maintaining productivity in tropical forests with tight nutrient cycling.
最近的研究表明，营养通量在热带森林中经常是脉冲式的，而脉冲式与渐进式输入对生态系统中营养物质的命运有不同的影响。养分矿化与植物吸收的同步性可以降低微生物和植物对限制养分的竞争，同时保持养分的紧密循环，而不同步则会导致养分从系统中流失。因此，营养脉冲可能在维持养分循环紧密的热带森林生产力方面发挥关键作用。
