Knowledge systems approaches for enhancing project impacts in complex settings: community fire management and peatland restoration in Indonesia

Knowledge systems approaches for enhancing the impact of research are well established and tend to focus on the ways in which researchers can adapt their engagement with stakeholders to achieve a better "fit" between research and action agendas. Yet, these approaches are often based on explicit or implicit assumptions of a skilled and willing research team, and stable and well-defined stakeholders, who have consistent and reasonably well-defined needs. This paper discusses how knowledge systems approaches were developed and deployed in the first phase of the Gambut Kita (Our Peatland) project on community fire management and peatland restoration in Indonesia (2017-2021). This was a complex project with a large multi-disciplinary team situated across dynamic institutions in Indonesia and Australia, and addressing a politically controversial topic. To capture the diverse experience of the researchers, and to focus on the needs of stakeholders, we developed a sequence of whole-of-project approaches comprising the following: (i) stakeholder mapping exercises at three nested scales combining stakeholder analysis, knowledge systems mapping and impact pathways analysis; (ii) a project coordinating committee of high-level Indonesian policy-makers and policy-influencers; (iii) a stakeholder engagement forum and (iv) online policy dialogues. We demonstrate its effects through the case of developing an Indonesian Peat Fire Danger Rating System (Peat FDRS), as a core project deliverable. Over 4 years, these structured stakeholder engagement processes gave rise to a Peat FDRS Stakeholder Engagement Network (a multi-institutional working group), which is making significant progress in navigating the complexity inherent in realising an accurate Indonesian Peat FDRS.

A preliminary study on humic-like substances in particulate matter in Malaysia influenced by Indonesian peatland fires

In this paper, ambient total suspended particulates (TSP) with a focus on humic-like substances (HULIS) are characterized based on intensive ground-based field samplings collected in Malaysia during non-haze and haze periods caused by peatland fires on the Indonesian island of Sumatra. Furthermore, concentrations of water-soluble organic carbon (WSOC) and carbon content of HULIS (HULIS-C) were determined, and fluorescence spectra of the HULIS samples were recorded by excitation emission matrix (EEM) fluorescence spectroscopy. The concentrations of WSOC and HULIS-C over the entire period ranged from 4.1 to 24 and 1.3 to 18 μgC m^-3, respectively. The concentrations of WSOC and HULIS-C during the peatland fire-induced strong haze periods were over 4.3 and 6.1 times higher, respectively, than the average values recorded during the non-haze periods. Even during the light haze periods, the concentrations of WSOC and HULIS-C were significantly higher than their averages during the non-haze periods. These results indicate that peatland fires induce high concentrations of WSOC, particularly HULIS-C, in ambient TSP at receptor sites. EEM fluorescence spectra identified fulvic-like fluorophores at the highest intensity level in the EEM fluorescence spectra of the haze samples. A peak at excitation/emission (Ex/Em) ≈ (290-330)/(375-425) nm is also observed at high intensity, though this peak is normally associated with marine humic-like fluorophores. It is shown that a peak at Ex/Em ≈ (290-330)/(375-425) nm is not derived from marine sources only; furthermore, peatland fires are shown to be important contributors to HULIS around this peak.