#Man jing zi series

Nairobi, Kenya, and Wageningen, The Netherlands: UNEP and Wageningen Agricultural University. Environment Information and Assessment Meeting Report 2. Report of the UNEP/RTVM/PE workshop on global and regional modeling of food production and landuse and the long-term impact of degradation of land and water resources, Bilthovan, the Netherlands, 20–22, May, 1996. P (United Nations Environment Programme) 1997a. Soil degradation: a threat to developing country food security by 2020? Vision 2020: Food, Agriculture, and the Environment Discussion Paper 27,14-25. Soil Degradation, Poverty and Migration in Africa: Example of the International Community’s Response: The UN Convention to Combat Desertification Introductory Note to the Session on 11 January 2001. In: Pimentel D (ed.), World Soil Erosion and Conservation. Soil erosion and agricultural productivity. Beijing: Chinese Geological Press, 98–115,144. Wageningen, The Netherlands and Nairobi, Kenya: International Soil Reference and Information Centre and United Nations Environment Programme. World Map of the Status of Human-induced Soil Degradation: An Explanatory Note. Oldeman L R, Hakkeling R T A, Sombroek W G, 1991. GLASOD Classification of Soil Degradation, ESCAP Environment Statistics Course (draft). Wageningen, The Netherlands: International Soil Reference and Information Centre. Soil degradation: a threat to food security? Report 98/01. Wallingford, U.K.: Commonwealth Agricultural Bureau International. In: Greenland D J Szaboles, T (ed.), Soil Resilience and Sustainable Landuse. Probability World Population Projections Based on Expert Opinion, Working Paper (WP-96-17) (International Institute for Applied Systems Analysis, Laxenburg, Austria, 1996), 20. Soil Degradation (Vol.11): Advances in Soil Science. Soil Science Society of America Journal, 59 (3): 661–667. Erosion-crop productivity relationships for soils of Africa. Loss of productive land due to salinization.

Third World Network (TWN), Environment: Agriculture. Land degradation causes $10 billion loss to South Asia annually. ISRTS (International Centre for Research & Training on Seabuckthorn), 2001. In-depth Analyses: Does China Have a Soil Degradation Problem? Laxenburg, Austria. IIASA (International Institute for Applied Systems Analysis), 1998. Beijing: Chinese Agriculture Press, 291–310.

#Man jing zi series

Textbook Series for 21st Century: Soil Science. Recommendations of the 2nd International Conference on Land Degradation, the Reports of 2nd International Conference on Land Degradation, Khon Kaen, Thailand, 1999. The Global Soil Degradation Problem, Noragric Brief. Lubbock, Tex, U.S.A.: Texas Tech University.Įsser K, 1999. In: Dregne H E (ed.), Degradation and Restoration of Arid Lands. Global desertifications dimensions and costs. Degradation of resources as a threat to sustainable agriculture, presented at the First World Congress of Professionals in Agronomy, Santiago, Chile, September 5–8, 1994.ĭregne H E, Chou N T, 1992. Cambridge: Cambridge University Press.Ĭrosson P, 1994. In: Land Transformation in Agriculture (ed.), Wolman M G, Fournier, F G A, New York: John Wiley.Ĭhisholm A, Dumsday R, 1987. FAO, Rome, Italy.īuringh P, Dudal R, 1987. An assessment of losses and degradation of productive agricultural land in the world. In: Proceedings of the International Conference on Problems of Anthropogenic Soil Formation, Moscow, June 16–21, 1997. Soil degradation caused by industrialization and urbanization. Therefore, it is essential to combat soil degradation at different levels and scales worldwide, not only for food security and ecological health, but also for the guarantee of global sustainable development.īlaikie P, Brookfield H, 1987. Besides, soil degradation is also associated with off-site problems of sedimentation, climate change, watershed functions, and changes in natural habitats leading to loss of genetic stock and biodiversity. As a result of soil degradation, it is estimated that about 11.9–13.4% of the global agricultural supply has been lost in the past five decades. As a natural process, soil degradation can be enhanced or dampened by a variety of human activities such as inappropriate agricultural management, overgrazing, deforestation, etc. Globally, soil erosion, chemical deterioration and physical degradation are the important parts amongst various types of soil degradation. It is estimated that nearly 2 billion ha of soil resources in the world have been degraded, namely approximately 22% of the total cropland, pasture, forest, and woodland. Soil degradation, defined as lowering and losing of soil functions, is becoming more and more serious worldwide in recent decades, and poses a threat to agricultural production and terrestrial ecosystem.