Back to the publications overview page.
| Title
|
Water-spreading weirs for the development of degraded dry river valleys
|
| Subtitle
|
Experience from the Sahel
|
| Author
|
Nill, D., Ackermann, K., van den Akker, E., Schöning, A., Wegner, M., van der Schaaf, C., Pieterse, J.
|
| Editor or Organisation
|
GIZ, KfW
|
| Year
|
2012
|
| Keywords
|
water engineering, planning, rehabilitation, weirs, watershed management, dry valleys, river valley degradation, climate change adaptation, desertification
|
| Country
|
Sahel, dry valleys
|
| Type
|
good practice
|
| Language
|
English
|
| Table of Contents
|
1. Introduction
2. Water-spreading weirs for the rehabilitation of dry valleys
3. Organisational aspects of water-spreading weirs
4. Water-spreading weirs affect ecology, yields and living conditions
5. Sustainability of water-spreading weirs
6. Success factors and challenges
7. Appendices
|
| Abstract
|
Dry river valley degradation have been identified as one major challenge in the Sahel zone by German development cooperation to effectively adapt to climate change. As a result of agricultural over-use and climatic changes, river valleys in the Sahel zone have increasingly experienced droughts in the past twenty years. This study provides a socio-economic and technical introduction to water-spreading weirs which mark a cost-effective option for practical measures to rehabilitate dry river valleys through a diversion of water resources. The study functions as an introduction to the topic. It further provides cases studies from three countries in the Sahel zone.
|
| Permission
|
Yes
|
| Category
|
Technologies
|
| File
|
|
