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This book takes up the issue of Qanats in general and some other subjects revolving around this technology. In fact, what makes this book distinct from the other works on Qanats is its emphasis on interdisciplinary studies, viewing all Qanat - related issues as a whole. Qanat is something beyond a technique for extracting groundwater.No doubt the economic and social life and the…

In 1992, the first ICID was instrumental to support the creation of the United Nations Convention to Combat Desertification and Mitigate the Effects of Droughts, the UNCCD. During the last 18 years, there was important institutional improvement, both at the international and national levels. We have now the UNCCD and the two other Rio Conventions, the UNFCCC and the UNCBD, and certainly there is…

Scientific American is the world's premier magazine of scientific discovery and technological innovation for the general public. Readers turn to it for a deep understanding of how science and technology can influence human affairs and illuminate the natural world. Its readers are not primarily scientists; to the extent that they have technical backgrounds, they read Scientific American for…

Arable land is a vital resource for humankind. Cultivation of this land generates food to meet the daily needs of the world’s population. This land is limited and the area is constantly shrinking—2 ha/inhabitant in 1900 versus 0.4 in 2010— due to the impact of human activities and population growth. Arable land is not a naturally renewable resource on the time scale of human evolution and is…

No.1 (2010) - In the first issue for 2010 -Tenure security, formalization of rights, land regulation institutions and investments. For a broader conceptual framework - Decentralisation, land tenure reforms and local institutional actors. Building partnerships for equitable and sustainable land governance in Africa - The driving forces of land conversion. Towards a financial…

Forests (ISSN 1999-4907) is an open access journal of forestry and forest ecology published quarterly online by MDPI. Forests is published monthly in 2014. Subject Areas forest ecology, management, and restoration; forest economics, natural resource policy and planning; silvicultural systems; forest entomology, forest pathology; forest ecophysiology and biology;