Titlebook: Conserving Biodiversity in Arid Regions; Best Practices in De John Lemons,Reginald Victor,Daniel Schaffer Book 2003 Springer Science+Busine

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鋸齒狀

Ond?ej Racek,Jan Blah?t,Filip Hartvichdevelopment of restorative sand—fixing vegetation in China’s Shapotou region where railways have been affected by increasing problems of desertification, and further provides a theoretical basis for greater understanding of the ecological mechanisms of restoring biodiversity decertified regions.

細胞膜

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Case Studies on Conserving and Sustainably Using Biodiversity in Arid and Semiarid Regions of Southe regions of Southern nations. The case studies were developed as part of the GEF/UNEP funded project “Promoting Best Practices for Conservation and Sustainable Use of Biodiversity of Global Significance in Arid and Semiarid Zones” (project number GF/1300-99-03) implemented by the Third World Network

LITHE

The Domestication of Indigenous Trees as the Basis of Sustainable Land Use in Africah Summit in 1992. The problem of land degradation from agricultural and livestock pressures received particular prominence for dryland Africa in the UN Convention to Combat Desertification. The means to a practical solution to the problem of unsustainable farming practices has, however, been very el

Grating

Conservation Farming with Biodiversity in South Africa: A Preliminary Evaluation of Ecosystem Goods ral production and the maintenance of rural livelihoods. Effective biodiversity conservation will therefore require innovative ways to merge the needs of farmers and rural communities with the need to conserve globally significant biodiversity. One of the key questions in this process is who actuall

Engaged

Strategies for In Situ Conservation of Crop Genetic Resources in Dryland Areas of Africa, ., .). In many developing countries, farmers also rely largely on local seed sources for their staple crops. Over 95 percent of rice cultivated in Nepal, 85 percent of durum wheat and 98 percent of barley in Morocco, and 50 percent of maize seeds in Mexico still come from local farmer sources (.,

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A Participatory Approach for Conservation of Forest Genetic Resourcesman and animal food, for medicinal purposes, for energy (firewood and charcoal), for construction, for raw material, for soil fertilization, etc. Despite the importance of the forest resources to the livelihood of rural people, Burkina Faso loses 32,000 ha of forest each year (.).

半導(dǎo)體