IPB University: Agrogeology Solutions for Effective Post-Mining Land Reclamation
A professor from the Faculty of Agriculture at IPB University, Prof. Iskandar, has introduced the concept of agrogeology as a solution for agricultural land management and post-mining land reclamation. This was discussed during a press conference leading up to the IPB University Professorial Scientific Oration on February 6, 2025.
What is Agrogeology?
Prof. Iskandar defined agrogeology as a field that examines the influence of soil parent material on soil development and productivity, as well as the potential benefits of utilizing geological byproducts to improve agricultural yield.
Opportunities in Indonesia
Indonesia’s location in the geologically active Ring of Fire offers significant opportunities to use volcanic rocks as soil amendments. With 127 active volcanoes, the country receives additional nutrients through volcanic eruptions that can benefit soil fertility.
The Importance of Soil Fertility
Prof. Iskandar indicated that the fertility of the soil is crucial, as local plant species struggle to survive in infertile conditions. He stressed that enhancing soil quality in areas impacted by mining operations is a vital step in effective land reclamation efforts.
Utilization of Industrial Waste Products
Additionally, he discussed the utilization of industrial waste products such as fly ash and bottom ash (FABA), as well as red mud from the aluminum production process, as amendments for soil. Early experimental results have shown that a compost-FABA mixture, termed ‘Komfaba,’ can significantly improve the chemical properties of nutrient-deficient soils.
Customized Approach for Land Reclamation
According to Prof. Iskandar, a customized approach is essential for land reclamation due to the varying characteristics of different soils. He stated that the first step in soil rehabilitation involves the application of appropriate soil amendments.
Managing Acid Mine Drainage
He also addressed the challenge of managing acid mine drainage, offering solutions such as encapsulation and permeable reactive barriers that incorporate FABA. Prof. Iskandar concluded that enhancing soil quality within an agrogeological framework can facilitate sustainable management practices for agricultural and post-mining lands.
(Source: IPB University)
