In general, desertification is caused by variations in climate and by unsustainable land-management practices in dryland environments.
In many dryland environments, vegetation self-organizes into bands that can be clearly identified in remotely-sensed imagery.
Research examining the influence of parent material on soil and landscape development is limited in dryland environments.
The role of trees in improving watershed functions and the importance of hydraulic lift in dryland environments are also considered.
This paper reviews our current understanding on the ecological and social effects of OHVs on dryland environments.
Since dryland environments are used for a variety of human purposes (such as agriculture and fuelwood collection), the various activities undertaken in them can exacerbate the problem of desertification and bring about lasting changes to dryland ecosystems.
Since dryland environments are used for a variety of human purposes (such as agriculture, animal grazing, and fuelwood collection), the various activities undertaken in them can exacerbate the problem of desertification and bring about lasting changes to dryland ecosystems.
Field-based data are needed to improve regional estimates of C storage and land atmosphere CO2 fluxes from dryland environments where pans are prevalent.
Field research carried out to investigate and demonstrate key aspects of high performance sheep systems in dryland environments is briefly described and a summary of results presented.
Demand for freshwater in many dryland environments is exerting negative impacts on the quality and availability of groundwater resources, particularly in areas where demand is high due to irrigation or industrial water requirements to support dryland agricultural reclamation.
