In January 2025, PhD student Hellen conducted a field expedition in Leguruki, Arusha, Tanzania, to sample natural saline ponds in the region. These ponds are integral to local livelihoods, supporting small-scale fishing and irrigation, and play a vital role in ensuring food security for surrounding communities. The primary objective of the field trip was to collect water and sediment samples to assess greenhouse gas (GHG) fluxes from these ponds and compare them to more anthropogenically influenced water bodies.
The data obtained during this fieldwork will offer critical insights into the role of natural saline ponds in GHG emissions, especially in contrast to human-impacted aquatic systems. This research is crucial for enhancing our understanding of the environmental significance of such ecosystems and their potential contribution to global climate change. Moreover, the findings will support the development of sustainable management strategies aimed at preserving these ponds while maintaining their socio-economic value for local populations.
During the field trip, Hellen also engaged with local community members to gather perspectives on the use, conservation, and recent changes in the ponds. Residents shared that some ponds have shrunk in size or dried up completely, attributing these changes to broader environmental shifts. Their insights underscore the importance of integrating local knowledge into scientific research, ensuring that the study is both scientifically robust and socially inclusive.
Ultimately, the outcomes of this study will contribute to global climate change mitigation efforts by generating data on GHG emissions from underexplored ecosystems. Additionally, the research will inform policy and practice to balance ecological conservation with the socio-economic needs of communities dependent on these water resources.
We look forward to disseminating the findings of this important research and collaborating with stakeholders to promote sustainable water resource management in Leguruki and beyond.
