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Vetiver Grass Hedge Rows technology for Watershed Protection

Lesson learned
Vetiver grass does not just control soil erosion but it also improves the lives of farm families and provides income from selling its slips and other saleable products which include Handicrafts such as baskets, table mats, door mats, carpets and air conditioning mats.
VGHRS is a simple but effective and sustainable vegetative technology, affordable by poor farmers. The project will serve as a model for watershed protection and soil fertility maintenance, in the region where costly and physically demanding soil conservation measures of constructing bunds and digging terraces on farms have failed totally leading to degradation of ecosystems.
The proposed intervention will tackle the cause of Water Hyacinth Weed on Lake Victoria through treatment of farmers’ crop fields with Vetiver grass hedgerows to control the flow of soil nutrients loaded runoff to the Lake hence stopping the growth of the weed at the same time increasing soil nutrients retention levels in crop fields thereby boosting yields. In addition, enabling boat transport and local trade on the lake as well as recovery of the native fishery plus reduced costs of clearing blocked channels and power dams will be achieved.
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Imran Ahimbisibwe

Decline of native fishery on Lake Victoria has compelled communities to engage in farming on fragile landscapes with far reaching repercussions on ecosystem function. Excess soil nutrients are washed down to the lake by runoff causing eutrophication, a process that triggers the growth and spread of Water Hyacinth weed on the lake’s surface. The weed forms a dense mat, blocking sunlight for organisms bellow, depleting the low concentrations of oxygen in the lake and traps fishing boats and nets of all sizes. The proposed intervention by Environmental Protection Information Center (EPIC) will address the cause of eutrophication through training farmers in the application of Vetiver Grass Hedge Rows System (VGHRS) as a watershed protection measure, and provision of Vetiver grass planting material to farmers. The project will establish a 1-ha Vetiver grass nursery in Kikondo fishing village to serve as a source of planting material for the community. Field based training for 50 farmers and Village Based Trainers will be conducted. A 0.5-ha model crop field treated with Vetiver hedgerows will be setup by the project as a demonstration in the project area and beyond. Vetiver hedgerows will enable farmers to stop soil nutrients loaded runoff from reaching the lake thereby stopping the growth of the water hyacinth weed as well as enhancing soil nutrients retention levels on their farms. The project contributes to IPSI Strategic Objective 2: Address the direct and underlying causes responsible for the decline or loss of biological and cultural diversity as well as ecological and socio-economic services from socio-ecological production landscapes and seascapes (SEPLS), so as to maintain those that are functioning well and/or rebuild, revitalize or restore lost and/or degraded SEPLS and Aichi Biodiversity Target 8-By 2020, pollution, including from excess nutrients, has been brought to levels that are not detrimental to ecosystem function and biodiversity.

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