All publications & documents
LDN methodological note

The LDN methodological note has been prepared based on the document developed during the UNCCD LDN pilot project and in the context of two Programmes implemented by the UNCCD Secretariat and the GM in cooperation with multiple partners, such as the Global Support Programme and the Land Degradation Neutrality Target Setting Programme (LDN TSP). The note aims at providing guidance to countries…

LDN methodological note
An appraisal of physiographic units for predicting site conditions in arid areas ( Vol.2)

Index to land system, land facet and land clump abstracts.The aim in this part of Appendix F has been to give for each abstract a typical stereo-pair of vertical air photographs, and ground photographs giving a general view, surface details and the soil profile in this order. The frequent gaps and ommisions are due to only to the author's lack of suitable photographs at the time this report was…

An appraisal of physiographic units for predicting site conditions in arid areas ( Vol.2)
An appraisal of physiographic units for predicting site conditions in arid areas (Vol.1)

The report attempts to evaluate the extent to which a new physiographic classification of landscape can be used as the basis for the storage of practical information about terrain from which predictions can be made. The landforms of the hot deserts of the world are classified into"land systems" and "facets'. data on soil and vegetation from USA, Lybia and the Middle East are quoted and analysed…

An appraisal of physiographic units for predicting site conditions in arid areas (Vol.1)
Arid lands in perspective. Including AAAS papers on water importation into arid lands

Scientific specialists have found that they cannot achieve a mastery in a narrow field without understanding better the neighbouring disciplines, the whole system that constitues a desert environment: authorities such as governmental officials who have broad responsibilities for desertic regions have found that they need more specific information about the nature and the future of arid lands.The…

Arid lands in perspective. Including AAAS papers on water importation into arid lands