Land degradation.

International Food and Feed Trade and Nutrient Cycling and Balances - Exploring Relationships at Country Level. by: (書目-語言資料,手稿)

Land Tenure Dynamics and Integrated Watershed Management. by: (書目-語言資料,手稿)

Patterns of land degradation in drylands = understanding self-organised ecogeomorphic systems / by: (書目-語言資料,印刷品)

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.