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Accueil du site → Projets de développement → Projets de recherche pour le Développement → Projets de Fondations (Ecologie) → Use of Plant Species within Critically Endangered Renosterveld for Phytoremediation of Glyphosate (Roundup) and Fertilizers, Conserving South Africa’s Freshwater Systems

Afrique du Sud (2017)

Use of Plant Species within Critically Endangered Renosterveld for Phytoremediation of Glyphosate (Roundup) and Fertilizers, Conserving South Africa’s Freshwater Systems

Dylan Jacklin

Titre : Use of Plant Species within Critically Endangered Renosterveld for Phytoremediation of Glyphosate (Roundup) and Fertilizers, Conserving South Africa’s Freshwater Systems

Pays : Afrique du Sud

Zone d’intervention : Napier,Stellenbosch

Date : 18 Dec 2017

Bénéficiaire : Dylan Jacklin

Contexte
The Overberg is situated within the Cape Floristic Kingdom, home to the world’s hottest biodiversity hotspot, and also one of the most Critically Endangered ecoregions. For the conservation of the critically endangered Renosterveld vegetation type we establish water corridors along watercourses, specifically for this study the Breede River. The indigenous plant species that have been identified as strong purifiers of contaminated water after the study will aid in the conservation of the biosphere. These species act as biofilters between the planted pastures and the water system, protecting the watercourses below. These corridors are important because the serve as refuges for the predatory insects that act as biological control agents of wheat aphids. Ongoing farming practices (Canola, Wheat, Barley, Livestock etc.) means much of the biodiversity is lost to make way for agricultural practices. We believe that once the ecosystem benefits are understood the agricultural sector will push for its conservation. The quality of the freshwater systems play a critical role in farming practices and also have an effect on the more informal settlements downriver, whom rely on the river water to sustain themselves.

Description
Restoration corridors along watercourses are the ideal landscape to consider for the protection of threatened vegetation, due to the topographical characteristics located near the river system. The steep slopes near the water body makes for undesirable farming conditions. Existing legislation also prevents agricultural practices within a specified distance above a river system. The identification of efficient plant species capable of phytoremediating contaminated water from the agricultural sites will play a vital role in preserving the watercourses below. Perceived benefits to biodiversity conservation for farmers is the possibility of greater economic and ecological stability, especially with the growing threat of global climate change. The purification capabilities of fertilizer and herbicide contaminants, call for the conservation of the threatened vegetation type. The vegetation acts as a layer of bio-filtration between the contamination and the natural watercourses.

The Rufford Foundation

Page publiée le 23 mai 2018