Integrating data and assessment evidence across disciplines to co-design soil erosion solutions in degraded pastoral land

1. Integrating data and assessment evidence across disciplines to co- design soil erosion solutions in degraded pastoral land William Blake et al. – University of Plymouth, UK 1

2. Soil erosion challenges in pastoral landscapes, northern Tanzania Will Blake, Anna Rabinovich, Maarten Wynants, Claire Kelly, Aloyce Patrick, Mona Nasseri, Kelvin Mtei, Linus Munishi, David Gilvear, Neil Roberts, Geoff Wilson, Patrick Ndakidemi

3. On- and off-site soil erosion challenges

4. Soil erosion and the ‘food, water, energy security nexus’ soil erosion

5. 5 Soil erosion, the FWE nexus and SDG challenges in East Africa

7. 7 Project origin: environmental diagnostic/forensic [nuclear] tools to tackle UN SDGs

8. 8 title Research, consultancy, training, teaching, ISO9001:2008 accreditation

9. 9 Community resilience – complex response to soil erosion shocks

10. 10 Interdisciplinary approach from evidence to policy change Funded by UKRI GCRF (2016-2017) & NERC [Follow On] (2017-2019)

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12. Loss of grass [drought and grazing] cover exposes and weakens soil reducing infiltration

13. 13 Reduced infiltration leads to OLF and sheet erosion

14. 14 OLF converges with natural topography and along trackways…

15. 15 Incision and gully network development increases connectivity

16. 16 Sediment pollution at basin scale adds additional complexity

17. 17 Sediment pollution at basin scale adds additional complexity

18. ‘overgrazing’ and land management decisions are a symptom of wider pressures and pastoralist transitions Population growth Sedentarisation / migration Changing rainfall patterns Governance change Shifts in land ownership

19. 19 ‘If we don’t change the environment may force us to change... and then it might be too late’

20. Realising change: barriers and opportunities Cultural importance of cattle & cattle as ‘savings account’ skills and knowledge to switch livelihood? Who takes responsibility for protecting common land? Harmony in community versus environmental protection Education is valued Recognition that environment may force change Cohesive communities

21. Decision support / knowledge exchange / co-design tools

22. Co-designing pathways to change through a shared community vision for the future and new local policy

23. Meeting the challenge: from research evidence to policy and land management change “I’m glad that you have come to ask important things that are concerned about environmental degradation in this community. I’m very happy about your coming in this village because other researchers do come and after getting done with their activities they go and forget us without coming back. So are you also same as them or there is a way that you are going to help us in saving our environment from soil erosion problems?” Farmer, Emaerete

24. The Jali Ardhi [Care for the Land] project: from evidence to co-designed best practices and policy to face soil erosion

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Integrating data and assessment evidence across disciplines to co-design soil erosion solutions in degraded pastoral land

Integrating data and assessment evidence across disciplines to co-design soil erosion solutions in degraded pastoral land

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Integrating data and assessment evidence across disciplines to co-design soil erosion solutions in degraded pastoral land