Land degradation.

International Food and Feed Trade and Nutrient Cycling and Balances - Exploring Relationships at Country Level. by: (Language materials, manuscript)

Land Tenure Dynamics and Integrated Watershed Management. by: (Language materials, manuscript)

Patterns of land degradation in drylands = understanding self-organised ecogeomorphic systems / by: (Language materials, printed)

Legislation.

Arid regions ecology.

Population growth.

Emissions.

Natural resources.

Environment.

Food chains.

Land degradation.

Soil sciences.

Agronomy.

Soil fertility.

Natural resource management.

Fertilizers.

Watershed management.

Watersheds.

Soil Science & Conservation.

Greenhouse gases.

Climate change.

Land tenure.

Land use planning.

Nitrogen.

Problem solving.

Animal sciences.

Environmental quality.

Feeds.

Environmental restoration.

Earth.

Livestock.

Water pollution.

Agriculture.

Water resources management.

Sustainability.