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侵入性初级生产者在温带浅湖中调节碳流和相关碳预算

Jérémy Mayen¹, Christophe Laplace-Treyture², Vincent Bertrin²

¹Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France.

The Science of the total environment

|April 3, 2025

概括

在浅层湖泊中侵入性水生植物和蓝藻细菌的繁殖可以改变它们的碳平衡. 温和化可以将这些湖泊从碳来源转变为碳汇,影响全球碳循环.

科学领域:

生态生态学生态生态学
临界技术临界技术
生物地质化学生物地质化学

背景情况:

低地浅湖接收营养和有机碳,导致温带气候的碳排放.
通过入侵性水下水生植被 (SAV) 和蓝藻细菌的开花来表明缩,影响湖泊碳动力学.

研究的目的:

探索入侵性SAV和蓝藻细菌在温带浅湖的碳池和预算中的作用.
评估热带状态和入侵物种如何影响这些水生系统中的碳循环.

主要方法:

计算了两个浅层湖泊的年度质量碳预算,它们具有不同的热带状态和入侵物种.
分析了碳池 (输入,输出,气体交换,埋葬) 和水生代谢.

主要成果:

由于异质的新陈代谢,一个橄-双质湖作为碳 (CO2和CH4) 的来源.
一个中等营养的湖泊作为一个碳汇,由入侵性SAV和蓝藻细菌的高碳吸收驱动.

结论:

侵袭性物种和环保化可以使湖泊在碳来源和碳汇之间转换.
植被湖泊中的沿海区域在区域和全球碳循环中发挥着重要作用.

关键词:

水生新陈代谢水生新陈代谢二氧化碳的流量是二氧化碳.全球变化全球变化侵入性的初级生产者低地湖 - - 低地湖是一个低地湖.甲的流量流量是什么

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相关概念视频

Primary Production

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.

What are Biogeochemical Cycles?

What are Biogeochemical Cycles?

The most common elements in organic molecules, carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus, are only available in the ecosystem in limited amounts. Therefore, these nutrients must be recycled through both biotic and abiotic components of the ecosystem, in processes generally called biogeochemical cycles.

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.

What is an Ecosystem?

What is an Ecosystem?

Production Efficiency

Production Efficiency

Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).

Predator-Prey Interactions

Predator-Prey Interactions

Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.