Haiti

Productive and protective land management – reducing disastrous floods and saving springs in Haiti

In Haiti, sustainable land management practices (eg. agroforestry and vetiver grass terraces) can enhance the resilience of land, and people, to tropical storms, floods and droughts.



Policy Brief

The iIllustrated Policy Brief presents for this case study the main impacts of SLM both on- and offsite with facts, figures and latest insights. It shows key messages, and the implications for practice, policy and research.

  

SLM Technologies and Approaches

The most promising SLM Technologies and SLM Approaches with a range of benefits both on-site and offsite were documented using the WOCAT SLM Technologies and Approaches Questionnaire and Database

Progressive bench terraces formed by a vetiver hedge system and trees [Haiti]

Progressive terracing technology is established through successive deposits of sediments behind (upstream) any anti-erosional structure, in this case contour strips of vetiver grass (vetiveria zizanioides). To better stabilize the slopes in the long-term, trees are planted downstream of the vetiver hedges.

Author: Eichenberger J, Year: 2020, Languages: English

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Agro-silvo-pastoralisme on north facing slopes (Haiti)

Agroforestry is a way of incorporating agricultural land combining trees and crops and / or livestock. The technology increases and diversifies production, generating social, economic and environmental benefits. In addition, planted around houses, trees offer hurricane protection.

Author: Eichenberger J, Year: 2020, Languages: English

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Weeded/ ploughed crop (Haiti)

Some crops such as corn, beans or potatoes, require weeding especially if no herbicides are applied. Weed control is done by manual ploughing with pickaxes and hoes.

Author: Eichenberger J, Year: 2020, Languages: English

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Agro-silvo-pastoralism around homesteads (Haiti)

Agroforestry is a way of incorporating agricultural land with trees, crops and / or livestock. The technology increases and diversifies production, generating social, economic and environmental benefits. In addition, planted around houses, trees offer protection against hurricanes.

Author: Eichenberger J, Year: 2020, Languages: English

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Afforestation (Haiti)

In the Mornes region of Léogâne, the Swiss Red Cross (SRC) practices reforestation through community participation.

Author: Eichenberger J, Year: 2020, Languages: English

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Video

Nature-Based Practices in Haiti: Reducing Floods and Saving Springs

Haiti is very vulnerable to climate extremes (hurricanes, rain storms) and is frequently hit by disasters, floods, droughts and food insecurity. The land use is not resilient and rural people face land degradation and loss of productivity. Good land management is not only productive also protective. It protects people downstream from devastating floods and soon after that droughts and drying up of the springs - the essential water supply. Agroforestry systems and vetiver terraces and their benefits are illustrated. Impressive landscape images and statements by land users and young extension workers showing on- and offsite benefits of SLM.

 

Master thesis

The Potential of Improved Land Management Practices to Decrease Vulnerability towards Torrential Rains as a Natural Hazard for Disasters - Case Study from the Cormier Watershed in Haiti

The main purpose of this master thesis is to assess the on- and off-site impacts of the current and the potential of improved land management in the Cormier watershed in order to reduce vulnerability towards torrential rains as a natural hazard, including rainfall coming along with tropical storms and hurricanes. In a first step, current land use practices were documented for the WOCAT database on sustainable land management (SLM) and their on-site impacts on human and natural environment analysed. In a second step, the impact of the current LULC on the potential runoff was assessed with the Soil Conservation Service Runoff Curve Number (SCS-CN) model (off-site impact). In a third step, the SCS-CN model was applied to scenarios with worsened and improved LULC. The documentation of the current land use practices showed that there are alternatives to the unsustainable conventional land management (CLM). The assessed sustainable land use practices (agroforestry, vertiver terraces, Terra Preta gardens and wattle fences for gully reduction) prevent soil loss and except for vetiver terraces, they are productive for the land users. Especially agroforestry systems have a great potential in this environment. For normal rainfall events of ≤ 70 mm (95percentile of daily rainfall), the improved LULC scenario with agroforestry systems resulted in being the best option for reducing runoff. Even though the potential runoff increases with higher rainfall amount, areas with agroforestry produced 20% less runoff than bare soil during an extreme event like Hurricane Matthew (500mm). The south- and south-east-facing slopes were identified as hotspots of runoff contribution and of land management. On these slopes, CLM is dominant and vegetation is sparse, hence, runoff is high.

Author: Eichenberger J, Year: 2020, Languages: English

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Contact

Hanspeter Liniger


hanspeter.liniger( at )cde.unibe.ch
Switzerland Switzerland

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