سال انتشار:
2021
عنوان انگلیسی مقاله:
Global assessment of marine phytoplankton primary production: Integrating machine learning and environmental accounting models
ترجمه فارسی عنوان مقاله:
ارزیابی جهانی از تولید اولیه فیتوپلانکتون دریایی: یکپارچه سازی یادگیری ماشین و مدل های حسابداری محیطی
منبع:
ScienceDirect- Elsevier- Ecological Modelling, 451 (2021) 109578: doi:10:1016/j:ecolmodel:2021:109578
نویسنده:
F. Mattei
چکیده انگلیسی:
The emergy accounting method has been widely applied to terrestrial and marine ecosystems although there is a
lack of emergy studies focusing on phytoplankton primary production. Phytoplankton production is a pivotal
process since it is intimately coupled with oceanic food webs, energy fluxes, carbon cycle, and Earth’s climate. In
this study, we proposed a new methodology to perform a biophysical assessment of the global phytoplankton
primary production combining Machine Learning (ML) techniques and an emergy-based accounting model.
Firstly, we produced global phytoplankton production estimates using an Artificial Neural Network (ANN)
model. Secondly, we assessed the main energy inputs supporting the global phytoplankton production. Finally,
we converted these inputs into emergy units and analysed the results from an ecological perspective. Among the
energy flows, tides showed the highest maximum emergy contribution to global phytoplankton production
highlighting the importance of thise flow in the complex dynamics of marine ecosystems. In addition, an emergy/
production ratio was calculated showing different global patterns in terms of emergy convergence into the
primary production process. We believe that the proposed emergy-based assessment of phytoplankton produc-
tion could be extremely valuable to improve our understanding of this key biological process at global scale
adopting a systems perspective. This model can also provide a useful benchmark for future assessments of marine
ecosystem services at global scale.
keywords: تولید اولیه فیتوپلانکتون | اکولوژی سیستم ها | شبکه های عصبی مصنوعی | یادگیری ماشین | حسابداری امری | Phytoplankton primary production | Systems ecology | Artificial neural networks | Machine learning | Emergy accounting
قیمت: رایگان
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