Advancements in Phytomining of Hyperaccumulators for Nickel and Rare Earth Elements Conservation

Dear Colleagues,

The extraction and recycling of critical materials, such as nickel (Ni) and rare earth elements (REEs), have become increasingly vital due to their widespread use in various industries and technologies. As these materials face supply chain disruptions and environmental concerns associated with conventional extraction methods, there is a growing need for sustainable alternatives. Phytomining, particularly the use of hyperaccumulator plants, presents a promising approach to recover Ni and REEs from low-grade ores and contaminated soils. This Special Issue aims to explore the potential of phytomining technologies and their implications for conservation efforts. 

The purpose of this Special Issue is to provide a platform for researchers to disseminate their findings on the phytomining of hyperaccumulators for Ni and REEs. By focusing on this emerging research area, we aim to advance scientific understanding and promote sustainable practices in critical materials recycling. The subject matter aligns with the scope of Conservation, as it addresses the interdisciplinary dimensions of conservation, including ecological, economic, and social aspects.

Suggested Themes are:

• Identification and characterization of hyperaccumulator species for Ni and REEs.
• Advances in phytomining technologies and agronomic management practices.
• Life cycle assessment (LCA) and techno-economic analysis (TEA) of phytomining processes.
• Environmental impacts and conservation implications of phytomining operations.
• Policy and regulatory considerations for promoting sustainable phytomining practices.
• Case studies and field trials showcasing the feasibility and effectiveness of phytomining projects.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but not limited to) the following:

• Genetic mechanisms underlying metal accumulation in hyperaccumulator plants.
• Soil–plant interactions and their influence on metal uptake and translocation.
• Economic feasibility and market dynamics of phytomining ventures.
• Strategies for enhancing metal recovery and soil remediation through phytomining.
• Integration of phytomining into circular economy, resource conservation and management frameworks.

I look forward to receiving your contributions.

Dr. Ario Fahimi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Conservation is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.