Desertification

U.S. Department of Agriculture map from 1998 showing global desertification vulnerability
Lake Chad in a 2001 satellite image, with the actual lake in blue. The lake lost more than 90% of its surface area between 1987 and 2005.[1]

Desertification is a type of land degradation in drylands in which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become increasingly arid.[2][3][4] It is the spread of arid areas caused by a variety of factors, such as climate change[5] and overexploitation of soil as a result of human activity.[6]

Throughout geological history, the development of deserts has occurred naturally. In recent times, the potential influences of human activity, improper land management, deforestation and climate change on desertification is the subject of many scientific investigations.[7][8][9]

  1. ^ Onamuti, Olapeju Y.; Okogbue, Emmanuel C.; Orimoloye, Israel R. (8 November 2017). "Remote sensing appraisal of Lake Chad shrinkage connotes severe impacts on green economics and socio-economics of the catchment area". Royal Society Open Science. 4 (11): 171120. doi:10.1098/rsos.171120. PMC 5717671. PMID 29291097.
  2. ^ Rafferty, John P.; Pimm, Stuart L. (2019). "Desertification.". Encyclopædia Britannica. Retrieved 2019-11-06. the process by which natural or human causes reduce the biological productivity of drylands (arid and semiarid lands). ... The concept does not refer to the physical expansion of existing deserts but rather to the various processes that threaten all dryland ecosystems.
  3. ^ "Desertification - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2022-04-03.
  4. ^ "desertification | Description, Causes, & Impacts | Britannica". www.britannica.com. Retrieved 2022-04-03.
  5. ^ Zeng, Ning; Yoon, Jinho (1 September 2009). "Expansion of the world's deserts due to vegetation-albedo feedback under global warming". Geophysical Research Letters. 36 (17): L17401. Bibcode:2009GeoRL..3617401Z. doi:10.1029/2009GL039699. ISSN 1944-8007. S2CID 1708267.
  6. ^ "Sustainable development of drylands and combating desertification". Retrieved 21 June 2016.
  7. ^ Liu, Ye; Xue, Yongkang (5 March 2020). "Expansion of the Sahara Desert and shrinking of frozen land of the Arctic". Scientific Reports. 10 (1): 4109. Bibcode:2020NatSR..10.4109L. doi:10.1038/s41598-020-61085-0. PMC 7057959. PMID 32139761.
  8. ^ An, Hui; Tang, Zhuangsheng; Keesstra, Saskia; Shangguan, Zhouping (1 July 2019). "Impact of desertification on soil and plant nutrient stoichiometry in a desert grassland". Scientific Reports. 9 (1): 9422. Bibcode:2019NatSR...9.9422A. doi:10.1038/s41598-019-45927-0. PMC 6603008. PMID 31263198.
  9. ^ Han, Xueying; Jia, Guangpu; Yang, Guang; Wang, Ning; Liu, Feng; Chen, Haoyu; Guo, Xinyu; Yang, Wenbin; Liu, Jing (10 December 2020). "Spatiotemporal dynamic evolution and driving factors of desertification in the Mu Us Sandy Land in 30 years". Scientific Reports. 10 (1): 21734. Bibcode:2020NatSR..1021734H. doi:10.1038/s41598-020-78665-9. PMC 7729393. PMID 33303886.

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