Ecological restoration through exclosure establishment has become an increasingly important approach to reversing degraded ecosystems in rangelands worldwide. The present study was conducted in northwestern Ethiopia where policy programs are aiming to restore degraded lands. Changes in soil properties following establishing exclosures on communal grazing lands were investigated. A space-for-time substitution approach was used to monitor changes in soil properties after conversion of communal grazing lands to exclosures with ages of establishment ranging from 1 to 7-years.

Discusses issues in the development of dairying in Africa & Asia, outlining main approaches employed in the organization of production, and the need to take into consideration five interrelated factors in dairy development strategies, viz, the supply of dairy stock, animal health, fodder systems, marketing arrangements and training of farmers; also points out the need for research, and institutional support in the form of advisory & extension services as well as credit provision to assist in dairy development.

Variability in woody plant species, vegetation assemblages and anthropogenic activities derails the efforts to have common approaches for estimating biomass and carbon stocks in Africa. In order to suggest management options, it is important to understand the vegetation dynamics and the major drivers governing the observed conditions. This study uses data from 29 sentinel landscapes (4640 plots) across the southern Africa. We used T-Square distance method to sample trees.

Knowledge of population dynamics is essential for managing and conserving wildlife. Traditional methods of counting wild animals such as aerial survey or ground counts not only disturb animals, but also can be labour intensive and costly. New, commercially available very high-resolution satellite images offer great potential for accurate estimates of animal abundance over large open areas. However, little research has been conducted in the area of satellite-aided wildlife census, although computer processing speeds and image analysis algorithms have vastly improved.

Examines the relative merits of milk versus meat production by African pastoralists. Discusses the implications for livestock development policy.

In the Brazilian savanna, there is a risk that soil fertility of pastures declines to a level below that of the native savanna because of low fertilizer application. To evaluate biophysical pasture sustainability we compared regularly fertilized productive pasture (PP), degraded pasture fertilized 13 yr previously (DP), and native savanna (Cerrado, CE) in an on-farm experiment. We determined (i) biomass productivity of the pastures and (ii) nutrient concentrations in Anionic Acrustoxes from three plots under each of CE, DP, and PP.

Given limited resources, adaptation strategies must target those populations most vulnerable to global change and equip those unable to adapt—generally the poorest—with the tools and incentives that will enable them to do so. ASARECA has recently carried out a study to enhance the understanding of climate change in the 10 ASARECA member countries. This report profiles the available climate change–related datasets and their accessibility and procurement details in the 10 ASARECA member countries.

This study was conducted to assess livestock feed sourcing and feeding strategies and their implications on livestock water productivity (LWP) in mixed crop-livestock production systems of the Blue Nile Basin (BNB) in Ethiopian Highlands. Three Woredas (Diga, Jeldu and Fogera) representing diverse agricultural farming systems were considered. One watershed in each Woreda, which is Dapo from Diga, Meja from Jeldu and Mizuwa from Fogera were selected. Each watershed further stratified to different farming systems depending on cropping pattern and landscape positions.

The importance of feed in increasing livestock productivity and benefits from livestock is stressed. Four major feed resources are identified: pastures, common property resources, forests, and fallow lands; planted forages; crop residues; and concentrate and agricultural by-products. There is a scarcity of quantitative, countrywide data on the current contribution of these resources to the actual feed budget, and the likely trends in future. Systematic mapping of fodder resources is required, and seen as an integral part of feed research.