BACKGROUND AND AIMS: The Karoo biomes of South Africa are major feed resources for livestock farming, yet soil nutrient depletion and degradation is a major problem. The objective of this study was to assess impacts of long-term (>75 years) grazing during spring (SPG), summer (SUG), winter (WG) and exclosure (non-grazed control) treatments on soil nutrients, penetration resistance and infiltration tests.

The current research on the manganese (Mn) transfer from soil to plant as well as to grazing Kajli rams in the form of sampling periods was carried out under semi-arid environmental conditions. Forage, soil and blood plasma samples were collected during 4 months of the year after a 1-month interval, and Mn concentrations were assessed after wet digestion using an atomic absorption spectrophotometer.

In a study of the traditional livelihoods of 12 Monpa and Brokpa villages in Arunachal Pradesh, India using social–ecological and participatory rural appraisal techniques, we found that the forest tree species paisang (Quercus griffithii, a species of oak) is vital to agroecosystem sustainability. Paisang trees are conserved both by individuals and through community governance, because their leaves play a crucial role in sustaining 11 traditional cropping systems of the Monpa peoples.

CONTEXT: Grasshoppers are a dominant herbivore assemblage globally and play an important role for ecosystem nutrient cycling. Yet, we lack a strong understanding of the relationship between grasshopper diversity and plant community composition at the landscape scale. OBJECTIVE: Our aim was to test landscape scale relationships between plant and grasshopper communities. METHODS: We used a large-scale, replicated experiment at four sites, including grazed and protected pastures across a 350 km transect and 200–400 mm precipitation gradient in the steppes of Inner Mongolia, China.

In Mongolia, nomadic herders have successfully been grazing livestock for more than a millennium. However, in recent years, concerns have increased that changes in management and higher livestock stocking rates may negatively affect vegetation and increase soil erosion, overland flow and sediment load of rivers. In addition, ambitious agricultural policies increase the intensity of agricultural land use thus enforcing a conversion of grassland to agricultural land which is far more susceptible to erosion.

Peste des petits ruminants (PPR), a viral disease of sheep and goats, is endemic in Nigeria. There are reports indicating the involvement of peste des petits ruminants virus (PPRV), the causative agent of PPR, in a camel respiratory syndrome in Africa. Considering that camels share the same grazing land and drinking points with other ruminants, this study was undertaken to determine the seroprevalence and extent of PPRV antibodies in Nigerian camels. A total of 1517 camel sera samples were collected from four states (Borno, Kano, Kastina and Sokoto).

Atriplex nummularia has been extensively planted in Northern Africa to combat desertification. However, few studies evaluated the effectiveness of these interventions. This study aimed at assessing the dynamic performance of a number of Atriplex plantations located in the Marrakech province in terms of multitemporal dry biomass production. Three SPOT 5 images (2004, 2008 and 2012) and field biomass measurements were integrated to quantify the dry biomass production dynamics of plantations established from 1996 to 2007. Different plant ages covered the whole plant life cycle curve.

Desertification, which affects more than two-thirds of the world's arid and semi-arid regions, is a significant global ecological and environmental problem. There is a strong link between desertification of the drylands and emission of CO₂ from soil and vegetation to the atmosphere. The Horqin Sandy Land is a severely desertified area in China's agro-pastoral ecotone due to its fragile ecology, combined with unsustainable land management.

Grassland degradation has been caused by overgrazing in Inner Mongolia. Previous studies revealed the effect of grazing pressure on the vegetation and soil. However, that of different land use types (i.e., grazing and mowing) has not been fully understood, though land use has been dramatically changed from grazing to mowing after land contract system was introduced in 1996. The objective of this study, therefore, was to evaluate that effect on the vegetation and soil.

The magnitude of risks facing Mongolian agriculture has made the sector’s
development extraordinarily volatile over the last 25 years as it underwent decollectivization.
Livestock in particular has seen rapid and largely unsustainable
rates of growth in terms of numbers of animals and herders, and in so doing has
become acutely vulnerable to the severe winter weather events known as dzuds.
Periodic droughts and other production risks have also affected the country’s
much smaller crop agriculture, much of which is geared for the production of

Land is an essential factor of production for agriculture, horticulture, forestry as well as other land related activities. Institutions that govern its use determine the sustainability and efficient use of this essential resource. In Ethiopia all land is publicly owned. Such an institutional setting has resulted in major degradation of Ethiopia’s land resources and dissipation of the resource rent, as available forest and grazing lands are exploited in a suboptimal fashion.

Based on a broad literature review, this publication discusses rural women’s time poverty in agriculture, elaborates on its possible causes and implications and provides insight into the various types of constraints that affect the adoption of solutions for reducing work burden. This paper raises questions about the adequacy of women’s access to technologies, services and infrastructure and about the control women have over their time, given their major contributions to agriculture.