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Updated: May 24, 2025

Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors
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解读高河口中的脱驱动因素:从稳定同位素分析和微生物分子技术的见解

Shengwei Cao1, Ping Yin2, Chunlei Liu3

  • 1Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen, Fujian 361021, China; Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, Hebei 050061, China; School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China.

The Science of the total environment
|March 1, 2025
PubMed
概括

人类造成的污染从便和污水影响沿海河口. 盐度和湿地类型控制处理,淡水湿地显示出最高的脱潜力.

关键词:
生物地化学过程 生物地化学过程沿海湿地是沿海的湿地.脱化过程中的脱.河口的河口 河口同位素 同位素是同位素.微生物学 微生物学

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Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of  ammonia, ammonium ions, nitrate, nitrite, or  nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
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The Nitrogen Cycle

Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
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