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Personal profile

Personal information

Ralph Lasage has been employed at the Institute for Environmental Studies (IVM) since September 2002. He is employed as a researcher and project manager, acting as the project manager of the projects ENHANCE, RESPONSES and ADAPTS. He is also teaching courses in various BSc and MSc programs at the VU, and gives training to practitioner, government staff and researchers in developing countries. His research covers many aspect of global change, focussing on water resources. For instance on the impacts of sea level rise and changes in river hydrology on communities and ecosystems.

An important part of the research aims at developing and evaluating adaptive measures, which are designed to meliorate the negative impacts. Here he uses the concept of vulnerability and several indicators and criteria. His work relates to developing countries as well as to developed countries, and ranges from community based activities to basin scale evaluations. In working on adaptation measures and strategies he combines global data with local knowledge and priorities of stakeholders.


Climate change impacts, adaptation strategies, adaptive capacity and vulnerability research, water management, stakeholder workshops, project management.


2015: PhD Community based adaptation in water management, assessing impacts and vulnerability.

2002: Master's degree in Ecohydrology, Environmental sciences, Vrije Universiteit Amsterdam.


Ancillary activities

No ancillary activities

Ancillary activities are updated daily

Fingerprint Dive into the research topics where R. Lasage is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

water harvesting Agriculture & Biology
dam Earth & Environmental Sciences
climate change Earth & Environmental Sciences
sand Earth & Environmental Sciences
water Earth & Environmental Sciences
dams (hydrology) Agriculture & Biology
dry environmental conditions Agriculture & Biology
meta-analysis Earth & Environmental Sciences

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 2002 2018

Adaptations in water harvesting technologies for enhancing food security and livelihood: A multi-country study in Sub-Saharan Africa

Snelder, D., Kahimba, F., Korodjouma, O., Abebe, A., Oughton, E., Bunclark, L. & Lasage, R., 2018, Rainwater-Smart Agriculture in Arid and Semi-Arid Areas: Fostering the Use of Rainwater for Food Security, Poverty Alleviation, Landscape Restoration and Climate Resilience. Leal Filho, W. & de Trincheria Gomez, J. (eds.). Springer International Publishing Switzerland, p. 95-119 25 p.

Research output: Chapter in Book / Report / Conference proceedingChapterAcademicpeer-review

Open Access
water harvesting
Food Supply
Africa South of the Sahara
Sub-Saharan Africa

Adaptation to Sea Level Rise: A Multidisciplinary Analysis for Ho Chi Minh City, Vietnam

Scussolini, P., Tran, T. V. T., Koks, E. E., Diaz Loaiza, M. A., Ho, L. P. & Lasage, R., 1 Dec 2017, In : Water Resources Research. 53, 12, p. 10841-10857 17 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Assessing the returns to water harvesting: A meta-analysis.

Bouma, J. A., Hedge, S. S. & Lasage, R., 2016, In : Agricultural Water Management. 163, p. 100-109

Research output: Contribution to JournalArticleAcademicpeer-review

water harvesting
crop yield

Community based adaptation in water management: Assessing impacts and vulnerability

Lasage, R., 2015, Amsterdam. 232 p.

Research output: PhD ThesisPhD Thesis - Research VU, graduation VUAcademic

Open Access

Evaluation of small scale water harvesting techniques for semi-arid environments

Lasage, R. & Verburg, P. H., 2015, In : Journal of Arid Environments. 118, p. 48-57

Research output: Contribution to JournalArticleAcademicpeer-review

water harvesting
dry environmental conditions
arid environment

Activities 2009 2013

  • 4 Lecture / Presentation
  • 1 Editorial work

Assessing the role of sand dams in water demand and water supply under climate change in Ethiopia

R. Lasage (Speaker), J.C.J.H. Aerts (Speaker), P.H. Verburg (Speaker), S.S. Alemu (Speaker)
15 Oct 2013

Activity: Lecture / PresentationAcademic

Journal of Integrative Environmental Sciences (Journal)

R. Lasage (Member of editorial board)

Activity: Peer review and Editorial workEditorial workAcademic

ADAPTS, an approach for including community based adaptation in the water sector, based on experiences in Ghana, Vietnam, Ethiopia and Peru.

R. Lasage (Speaker), A. Douma (Speaker), A.C. de Vries (Speaker), P. Bubeck (Speaker)
20 Mar 2013

Activity: Lecture / PresentationAcademic

Adaptation planning and practices: The Netherlands, climate change and adaptation

H. de Moel (Speaker), R. Lasage (Speaker)
30 Jun 2009

Activity: Lecture / PresentationAcademic