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相关概念视频

Primary Production01:06

Primary Production

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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.
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What are Biogeochemical Cycles?00:54

What are Biogeochemical Cycles?

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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.
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Bioremediation00:46

Bioremediation

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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.
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相关实验视频

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Ecotoxicological Effects of Microplastics on Bird Embryo Development by Hatching without Eggshell
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溶解的有机碳和微塑料降低了生物多样性对类动物浮游生物资源利用效率的影响.

Yongchao Peng1, Ninghui Xu1, Haojie Su2

  • 1Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-funded by Anhui Province and Ministry of Education of the People's Republic of China, School of Ecology and Environment, Anhui Normal University, Wuhu 241002, China; Donghu Experimental Station of Lake Ecosystems, State key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.

Ecotoxicology and environmental safety
|May 10, 2025
PubMed
概括

增加的溶解有机碳 (DOC) 增加了动物浮游生物多样性和资源利用效率 (RUE). 然而,DOC和微塑料削弱了生物多样性.

关键词:
身体大小 身体尺寸甲动物动物浮游生物溶解的有机碳 溶解的有机碳微塑料是一种微塑料.资源使用效率,资源使用效率.种类丰富性 种类丰富性

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Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris
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科学领域:

  • 生态生态学 生态生态学
  • 环境科学 环境科学
  • 水生生态系统 水生生态系统

背景情况:

  • 生物多样性与生态系统功能之间的联系是一个关键的生态概念.
  • 城市化等人类活动将溶解有机碳 (DOC) 和微塑料引入湖泊,影响水质和生态系统服务.
  • 对于环境变化如何影响生物多样性与生态系统功能之间的关系的理解有限.

研究的目的:

  • 研究增加溶解有机碳 (DOC) 对类动物浮游生物多样性和生态系统功能的影响.
  • 评估DOC和微塑料污染如何改变生物多样性对热带转移效率的影响.
  • 了解全球环境变化对生态系统服务的影响.

主要方法:

  • 进行了一个为期两个月的中宇宙实验.
  • 该实验操纵了溶解有机碳 (DOC) 度.
  • 测量包括甲动物动物浮游生物的分类学和功能丰富性,身体大小,资源利用效率 (RUE) 和食用物转移效率.

主要成果:

  • 增加DOC度通常会增强甲动物动物浮游生物的分类丰富性,功能丰富性,资源利用效率 (RUE) 和体型.
  • 更高的物种丰富性,功能丰富性和更大的体型与动物浮游生物RUE正相关.
  • 氧化和微塑料的联合压力降低了生物多样性对热带转移效率的影响,特别是影响了功能丰富度-RUE关系.

结论:

  • 生物多样性在维持高生态系统功能方面发挥着至关重要的作用,更高的丰富性和更大的体型对于高效的资源使用至关重要.
  • 环境变化,包括DOC和微塑料污染,可以减少生物多样性对生态系统运作的积极影响.
  • 目前的评估可能低估了多样性丧失对生态系统功能和服务的负面影响,强调了保护生物多样性的必要性.