FTA
Science
Conference

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RESEARCH
PROGRAM ON
Forests, Trees and
Agroforestry

FTA 2020 Science Conference

Forests, trees and agroforestry
science for transformational change

14-18 | 21-25

September 2020

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Book of Abstracts

Corrigendum of 10.03.2021
FTA 2020 Science Conference

Forests, trees and agroforestry
science for transformational change

14-18 | 21-25

September 2020

Book of Abstracts
Book of Abstracts

© 2020 The CGIAR Research Program on Forests, Trees and Agroforestry (FTA)

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Content in this publication is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0), http://creativecommons.org/licenses/by/4.0/

DOI: 10.17528/cifor/007925

Gitz V, Meybeck A, Ricci F, Belcher B, Brady MA, Coccia F, Elias M, Jamnadass R, Kettle C, Larson A, Li Y, Louman B, Martius C, Minang P, Sinclair F, Sist P, Somarriba E. (Editors). 2020. *Book of Abstracts: FTA 2020 Science Conference - Forests, trees and agroforestry science for transformational change*. 14–18 | 21–25, September 2020. Bogor, Indonesia: The CGIAR Research Program on Forests, Trees and Agroforestry (FTA).

CGIAR Research Program on Forests, Trees and Agroforestry
CIFOR Headquarters
Jalan CIFOR
Situ Gede, Sindang Barang
Bogor Barat 16115
Indonesia

T +62-251-8622-622
E cgiarforestsandtrees@cgiar.org

foreststreesagroforestry.org

We would like to thank all funding partners who supported this research through their contributions to the CGIAR Fund. For a full list of the 'CGIAR Fund' funding partners please see: http://www.cgiar.org/our-funders/

Any views expressed in this publication are those of the authors. They do not necessarily represent the views of The CGIAR Research Program on Forests, Trees and Agroforestry (FTA), the editors, the authors' institutions, the financial sponsors or the reviewers.
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## AUTHORS

Bruno Locatelli†‡ Martin Laurenceau§
Yaneth Roxana Calla Chumpisucal Améline ValletΔ
Sandra Lavorel(f) Matthew Colloff(g) Houria Djoudi(h)

## E-MAIL ADDRESS OF PRESENTER

bruno.locatelli@cirad.fr

## ORGANIZATIONS

† Cirad, University of Montpellier, France

‡ CIFOR, Lima, Peru

§ IRD, Montpellier, France

| Universidad Nacional Micaela Bastidas,
Abancay, Peru

Δ Ecologie Systématique Evolution,
AgroParisTech, CNRS, Université Paris-Saclay,
Orsay, France

(f) LECA, CNRS, Université Grenoble Alpes, France

(g) Fenner School of Environment and Society,
Australian National University, Canberra, Australia

(h) CIFOR, Bogor, Indonesia

# The decision context for nature-based solutions in a Peruvian watershed: Adaptation in people's minds and on the ground

Nature-based solutions (NBS) are receiving increasing attention for adapting to change climate and reducing its impacts on water resources. There is a growing interest and awareness of the value of managing, conserving and restoring ecosystems for their role in regulating water, protecting soils and increasing the resilience of social-ecological systems in watersheds. In the Peruvian mountains, some adaptation programs emphasize NBS options, such as the conservation of cloud forests, the restoration of forest cover, and the conservation or restoration of wetlands and grasslands. At the same time, other adaptation programs focus on technological and infrastructure options based on bricks-and-mortar, such as dams, reservoirs and water treatment facilities. In between, traditional options have been used for centuries by local communities to address water problems by combining NBS and small-scale infrastructure. The different options have a potential for providing water adaptation benefits but they differ greatly, for example, in terms of equity (e.g. when a dam benefits mostly urban and powerful actors) and co-benefits (e.g. scenic beauty, carbon sequestration or wild plant supply). Decision-making on adaptation options is challenging because of the lack of knowledge on the effectiveness of different solutions and because of the diverging opinions on their relevance among decision-makers. Using mixed methods, this study analyzes options for adaptation and water management in the Andes in Peru. We propose a critical analysis of decision contexts and the implications of adaptation options for ecosystem services and equity. We identify different doctrines and preferences for technological or NBS options and relate them to stakeholder worldviews. The contrasting discourses on adaptation options can be associated with different conceptions of equity and different opinions on the role of government, communities and the private sector in water management. We also explore whether some options are favored by decision rules and power relations. Analyzing the interactions between stakeholders and ecosystem services and understanding the trade-offs between ecosystem services can help explain the different positions in favor of or against NBS. This research highlights the importance of power relationships in adaptation decision-making, as such relationships favor the values and knowledge of some stakeholders and give priority to their preferred adaptation options.

## KEYWORDS

Adaptation, climate change, nature-based solution, water, mountain

## REFERENCES

Fedele G, Locatelli B, Djoudi H and Colloff MJ. 2018. Reducing risks by transforming landscapes: Cross-scale effects of land-use changes on ecosystem services. *PLOS ONE* 13(4) e0195895. https://doi.org/10.1371/journal.pone.0195895

Fedele G, Locatelli B and Djoudi H. 2017. Mechanisms mediating the contribution of ecosystem services to human well-being and resilience. *Ecosystem Services* 28A:43–54. https://doi.org/10.1016/j.ecoser.2017.09.011

Lavorel S., Locatelli B, Colloff MJ and Bruney E. 2020. Co-producing ecosystem services for adapting to climate change. *Philosophical Transactions of the Royal Society B* 375:20190119. https://doi.org/10.1098/rstb.2019.0119

Lavorel S, Colloff M, Locatelli B, Gorddard R, Prober S, Gabillet M, Devaux C, Laforgue D and Peyrache-Gadeau V. 2019. Mustering the power of ecosystems for adaptation to climate change. *Environmental Science and Policy* 92:87–97. https://doi.org/10.1016/j.envsci.2018.11.010

Vallet A, Locatelli B, Levrel H, Dendoncker N, Barnaud C and Quispe Conde Y. 2019. Linking equity, power and stakeholders' roles in relation to ecosystem services. *Ecology and Society* 24(2):14. https://doi.org/10.5751/ES-10904-240214