The major objectives of this workshop are to sharpen the focus of ILRI's ecoregional research, to further identify commonalities in tools and new methods that can enable ILRI to do effective transregional research, and to identify improvements to the way in which ILRI does ecoregional research.

The purpose of the project "Increasing livestock productivity in mixed crop-livestock systems in South Asia" is to develop a crop-livestock typology that will ultimately improve the effectiveness of technical and socio-economic interventions aimed at improving animal performance and protecting the natural resource base at farm level in South Asia.

A project proposal whose aim is to promote more appropriate resource management on smallholder crop-livestock farms in East Africa is described. Prototypes of mixed farming systems will be developed to characterise farming systems according to their management objectives. These prototypes will then be used to map improvements of the farming systems by combining prototyping and simulation modelling. Scenarios will be explored to assess natural resource management interventions that promote sustainability of these prototype-farming systmes.

This paper aims to describe the state of theart of both water harvesting (WH) andsupplemental irrigation (SI) techniques in the temperate and sub-tropical dry lands, especiallyin the countries of WANA that are characterized by a Mediterranean-type climate. In addition,three case studies of water harvesting are presented (see annex). These were selected from the case studies presented at the FAO Expert Consultation Cairo (1994). By sharing with us the success and the failure of these endeavors, the authors of the case studies illustrate many of the points that are made in the text.

This issue of Unasylva contains, as promised in the previous edition, additional articles on sustainable mountain development. These articles help to complete the focus on the topic and should also help to promote interest in the recently declared International Year of the Mountain (2000) for which FAO has been designated lead agency status within the United Nations system.

En conclusion, des informations actuelles, fiables et transparentes sur le secteur forestier sont un ingrdient vital du processus d'amnagement durable. Toutes les organisations et institutions engages dans la gestion durable des forts devraient exploiter les moyens offerts par Internet pour coordonner et relier les serveurs et optimiser ainsi la valeur des informations disponibles. Comme promis dans la prcdente dition, ce numro d'Unasylva contient de nouveaux articles sur le dveloppement durable des montagnes, qui viennent ainsi complter le tour d'horizon de la question.