首页|Planetary Homeostasis of Reactive Nitrogen Through Anaerobic Ammonium Oxidation

Planetary Homeostasis of Reactive Nitrogen Through Anaerobic Ammonium Oxidation

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The availability of nitrogen(N)is crucial for both the productivity of terrestrial and aquatic ecosystems globally.However,the overuse of artificial fertilizers and the energy required to fix nitrogen have pushed the global nitrogen cycle(N-cycle)past its safe operating limits,leading to severe nitrogen pollution and the production of significant amounts of greenhouse gas nitrous oxide(N2O).The anaerobic ammonium oxidation(anammox)mechanism can counteract the release of ammonium and N2O in many oxygen-limited situations,assisting in the restoration of the homeostasis of the Earth's N biogeochemistry.In this work,we looked into the characteristics of the anammox hotspots'distribution across various types of ecosystems worldwide.Anammox hotspots are present at diverse oxic-anoxic interfaces in terrestrial systems,and they are most prevalent at the oxic-anoxic transition zone in aquatic ecosystems.Based on the discovery of an anammox hotspot capable of oxidizing ammonium anoxically into N2 without N2O by-product,we then designed an innovative concept and technical routes of nature-based anammox hotspot geoengineering for climate change,biodiversity loss,and efficient utilization of water resources.After 15 years of actual use,anammox hotspot geoengineering has proven to be effective in ensuring clean drinking water,regulating the climate,fostering plant and animal diversity,and enhancing long-term environmental quality.The sustainable biogeoengineering of anammox could be a workable natural remedy to resolve the conflicts between environmental pollution and food security connected to N management.

Biogeochemical N-cycleOxic-anoxic interfaceNature-based solutionBiogeoengineeringNitrogen sustainable development

Guibing Zhu、Bangrui Lan、Shuci Liu、Cameron M.Callbeck、Shanyun Wang、Liping Jiang、Asheesh Kumar Yadav、Jan Vymazal、Mike S.M.Jetten、Ganlin Zhang、Yongguan Zhu

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Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China

University of Chinese Academy of Sciences,Beijing 100049,China

Department of Environment and Science,Queensland Government,Brisbane,QLD 4102,Australia

Department of Environmental Sciences,University of Basel,Basel 4056,Switzerland

CSIR-Institute of Minerals and Materials Technology,Bhubaneswar 751013,India

Faculty of Environmental Sciences,Czech University of Life Sciences Prague,Praha 16521,Czech Republic

Department of Microbiology,Radboud University,Nijmegen 6525 XZ,The Netherlands

Key Laboratory of Watershed Geographic Sciences,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China

State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China

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Tithe National Natural Science Foundation of ChinaTithe National Natural Science Foundation of ChinaSpecial project of ecoenvironmental technology for peak carbon dioxide emissions and carbon neutrality

9185120442021005RCEES-TDZ-2021-20

2024

工程(英文)

工程(英文)

CSTPCDEI
ISSN:2095-8099
年,卷(期):2024.38(7)