Passar para o conteúdo principal

page search

Displaying 2545 - 2556 of 4597

Multivariate Analysis of Rangeland Vegetation and Soil Organic Carbon Describes Degradation, Informs Restoration and Conservation

Peer-reviewed publication
Setembro, 2013

Agricultural expansion has eliminated a high proportion of native land cover and severely degraded remaining native vegetation. Managers must determine where degradation is severe enough to merit restoration action, and what action, if any, is necessary. We report on grassland degraded by multiple factors, including grazing, soil disturbance, and exotic plant species introduced in response to agriculture management. We use a multivariate method to categorize plant communities by degradation state based on floristic and biophysical degradation associated with historical land use.

Transitions in agro-pastoralist systems of East Africa: Impacts on food security and poverty

Journal Articles & Books
Setembro, 2013
África
Ásia Oriental

Climate-induced livelihood transitions in the agricultural systems of Africa are increasingly likely. There is limited evidence on what such transitions might look like. We carried out fieldwork in 12 sites in Kenya, Tanzania and Uganda to understand changes in farming systems in the recent past, and to test the hypothesis that sedentary farmers in zones that may become warmer and drier in the future may be forced to increase their reliance on livestock vis-à-vis cropping in the future. We estimated the contribution of crop and livestock activities to incomes, food security and poverty.

Transformation of the learning initiative Making Rangelands Secure

Policy Papers & Briefs
Setembro, 2013
África

2.0 RECENT EVENTS 5.0 UGANDA GAZETTES A NATIONAL LAND POLICY 6.0 PLAYING THE “CONSERVATION CARD’: THE KHWE SAN IN NAMIBIA’S BWABWATA NATIONAL PARK 7.0 SECURING LAND TITLES FOR PASTORALIST WOMEN: THE STORY OF SAKALA 8.0 PROTESTS AGAINST CONVERSION OF PASTORAL LANDS INTENSIFY IN INDIA 9.0 PASTURE PROTECTOIN IN ADILA LOCALITY, DARFUR, SUDAN 10.0 VICTORIOUS IN TANZANIA 11.0 MORE RECENT EVENTS 12.0 18,000 CATTLE GIVEN PASSAGE ACROSS AUSTRALIA

Ultimate drivers of native biodiversity change in agricultural systems

Peer-reviewed publication
Setembro, 2013
Global

The ability to address land degradation and biodiversity loss while maintaining the production of plant and animal products is a key global challenge. Biodiversity decline as a result of vegetation clearance, cultivation, grazing, pesticide and herbicide application, and plantation establishment, amongst other factors, has been widely documented in agricultural ecosystems.

Ultimate drivers of native biodiversity change in agricultural systems

Peer-reviewed publication
Setembro, 2013
Global

The ability to address land degradation and biodiversity loss while maintaining the production of plant and animal products is a key global challenge. Biodiversity decline as a result of vegetation clearance, cultivation, grazing, pesticide and herbicide application, and plantation establishment, amongst other factors, has been widely documented in agricultural ecosystems.

Ultimate drivers of native biodiversity change in agricultural systems

Peer-reviewed publication
Setembro, 2013
Global

The ability to address land degradation and biodiversity loss while maintaining the production of plant and animal products is a key global challenge. Biodiversity decline as a result of vegetation clearance, cultivation, grazing, pesticide and herbicide application, and plantation establishment, amongst other factors, has been widely documented in agricultural ecosystems.

A new relevance and better prospects for wider uptake of social learning within CGIAR

Reports & Research
Setembro, 2013

Relying entirely on survey information and personal exchanges with over 70 scientists from within the CGIAR network, this working paper attempts to achieve a better understanding of the scope of social learning related efforts undertaken in CGIAR and main issues of relevance to more current efforts, such as that planned by the CGIAR program on Climate Change Agriculture and Food Security (CCAFS). A wide range of methods was identified, where groups of people learn in order to jointly arrive at solutions to pressing food security problems.