Interactive comment on “Resistance and resilience of stream metabolism to high flow

Interactive comment on “Resistance and resilience of stream metabolism to high flow
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“水流代谢对高流量的抵抗力和恢复力”的互动评论

DOI:
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发表时间:
2020
期刊:
影响因子:
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通讯作者:
E. Hotchkiss
E. Hotchkiss
中科院分区:
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文献类型:
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作者:
Brynn M. O’Donnell;E. Hotchkiss

文献摘要

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5年)。我们强调,我们专注于质量超过数量时,选择和分析流代谢之前,期间和之后的高流量事件。选择我们的方法是为了解决我们对生态系统过程的理解中挥之不去的知识差距:生物过程(总初级生产力和生态系统呼吸,GPP和ER)如何响应并从风暴期间离散的较高流量扰动中恢复,这两个过程如何相互比较,以及哪些环境驱动因素可能最好地解释这些动态。潜在的代谢反应包括补贴(由于较高的底物浓度而增加速率),压力(由于物理或化学干扰而降低速率)或无变化,这使得我们的工作能够建立在地球化学和生态学的基础概念上。另一个知识差距是不同的过程(即,GPP、ER)可以不同地响应高流量。我们如何选择在更高的流量期间量化新陈代谢的变化,以一种新的方式承认生态系统的“脉冲稳定状态”。在我们的修订稿中,我们将更好地介绍和确定这些不同的概念如何以及在哪里适用于,通知,并回答我们的研究。
5 years). We emphasize that we focused on quality over quantity when selecting for and analyzing stream metabolism before, during, and after high flow events. Our methods were chosen to address a lingering knowledge gap in our understanding of ecosystem processes: how biological processes (gross primary production and ecosystem respiration, GPP and ER) respond to and recover from discrete higher flow disturbances during storms, how those two processes compare to one another, and which environmental drivers may best explain these dynamics. Potential metabolic responses include subsidy (increasing rates due to higher substrate concentrations), stress (decreasing rates due to physical or chemical disturbances), or no change, which allows for our work to build on concepts fundamental to biogeochemistry and ecology. An additional knowledge gap is how different processes (i.e., GPP, ER) may respond differently to high flows. How we chose to quantify changes in metabolism during higher flow acknowledges the “pulsing steady state” of ecosystems in a novel way. In our revised manuscript, we will better introduce and identify how and where these different concepts apply to, inform, and are answered by our research.