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1 PROGRESSUS INQUISITIONES DE MUTATIONE CLIMATIS Vol. 9 No. 1 January 2013 doi: /j.issn ,,,. [J]., 2013, 9 (1): % % [1] ; CB hjp@lzu.edu.cn

2 [1-2] [2] NCEP [6] Palmer PDSI) 250 mm PDSI 3 (1) :, 5 (2), E 47 N (3) [7] , UNEP [3], A , 4 A 0.05, 0.05 A A 0.5,, 0.5 A 0.65 UNEP Hulme [4] 9 [8] PDSI 1 IPCC [5] [9] 1987, [4] Fig. 1 Global distribution of arid and semi-arid regions [4] 20 80

3 SACOL [20] 10 [10] FIFE [11] WMO Huang [21-24] HAPEX-Sahel [12] EFEDA [13] ICRISAT SEBEX [14] HEIFE [15], [25], IMGRASS [16] [17] [18] LOPEX [19] 4 3 [7] 2002 Hadley, 2005

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6 and environment research observatory over the loess plateau [J]. Advances in Atmospheric Sciences, 2008, 25 (6): [21] Huang J P, Minnis P, Lin B, et al. Possible influences of Asian dust aerosols on cloud properties and radiative forcing observed from MODIS and CERES [J]. Geophysical Research Letters, 2006, 33, L06824, doi: /2005GL [22] Huang J P, Lin B, Minnis P, et al. Satellite-based assessment of possible dust aerosols semi-direct effect on cloud water path over East Asia [J]. Geophysical Research Letters, 2006, 33, L19802, doi: / 2006GL [23] Huang J P, Fu Q, Su J, et al. Taklimakan dust aerosol radiative heating derived from CALIPSO observations using the Fu-Liou radiation model with CERES constraints [J]. Atmospheric Chemistry and Physics, 2009, 9: [24] Huang J P, Minnis P, Yan H R, et al. Dust aerosol effect on semi-arid climate over Northwest China detected from a train satellite measurements [J]. Atmospheric Chemistry and Physics, 2010, 10: [25] Huang J P, Fu Q, Zhang W, et al. Dust and black carbon in seasonal snow across northern China [J]. Bulletin of the American Meteorological Society, 2011, 92: [26] Folland C K, Palmer T N, Parker D E. Sahel rainfall and worldwide sea surface temperatures [J]. Nature, 1986, 320: [27] Rowell D P, Forlland C K, Maskell K, et al. Modeling the influence of global sea surface temperatures on the variability and predictability of seasonal Sahel rainfall [J]. Geophysical Research Letters, 1992, 19 (9): [28] Hunt B G. Natural climatic variability and Sahelian rainfall trends [J]. Global and Planetary Change, 2000, 24: [29] Giannini A, Saravanan R, Chang P. Oceanic forcing of Sahel rainfall on interannual to interdecadal time scales [J]. Science, 2003, 302: [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] Otterman J. Baring high-albedo soils by overgrazing: a hypothesized desertification mechanism [J]. Science, 1974, 186: Charney J G. Dynamics of deserts and drought in the Sahel [J]. Quarterly Journal of the Royal Meteorological Society, 1975, 101: Rotenberg E, Yakir D. Contribution of semi-arid forests to the climate system [J]. Science, 2010, 327: Xue Y. The impact of desertification in the Mongolian and the Inner Mongolian grassland on the regional climate [J]. Journal of Climate, 1996, 9 (9): Xue Y, Shukla J. The influence of land surface properties on Sahel climate. Part I: desertification [J]. Journal of Climate, 1993, 6: Zeng N, Neelin J D, Lau K M, et al. Enhancement of interdecadal climate variability in the Sahel by vegetation interaction [J]. Science, 1999, 286: ,. Sahel [J]., 2001, 16 (3): Rotstayn L D, Lohmann U. Tropical rainfall trends and the indirect aerosol effect [J]. Journal of Climate, 2002, 15: IPCC. Managing the risks of extreme events and disasters to advance climate change adaptation: a special report of working groups I and II of the Intergovernmental Panel on Climate Change [M]. Cambridge: Cambridge University Press, 2012: 582 Held I M, Soden B J. Robust responses of the hydrological cycle to global warming [J]. Journal of Climate, 2006, 19: Johanson C M, Fu Q. Hadley cell expansion: model simulations versus observations [J]. Journal of Climate, 2009, 22: Wu G X, Liu Y, Zhu X, et al. Multi-scale forcing and the formation of subtropical desert and monsoon [J]. Annales Geophysicae, 2009, 27 (9): An Overview of Arid and Semi-Arid Climate Change Huang Jianping 1, Ji Mingxia 1, Liu Yuzhi 1, Zhang Lei 1, Gong Daoyi 2 1 Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou University, Lanzhou , China; 2 State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing , China Abstract: The spatial and temporal characteristics and dynamic mechanism of arid and semi-arid climate change have been reviewed in this paper. Recently, most of the research on the arid and semi-arid regionsõ climate change mainly focused on the specific regions. However, there are less systematic studies for the relationship of climate change on the different global arid and semi-arid regions. The understanding of the mechanism of land surface process model development is another shortage on the climate change studies because the experiments are limited to work on it. Finally, the questions in arid and semi-arid climate change studies and future research direction are proposed. Key words: arid climate; semi-arid climate; climate change

mm 400 mm 15 mm EOF mm/10a Fig. 1 Distributions

mm 400 mm 15 mm EOF mm/10a Fig. 1 Distributions 7 2 2011 3 ADVANCES IN CLIMATE CHANGE RESEARCH Vol. 7 No. 2 March 2011 1673-1719 (2011) 02-0097-07 1961 2007 77 5 5 6 2 3 8 11 1980 1980 1990 2015 8 11 P426.6 A 7.86% 4 50 0.35 5 6 19 7 8 9 1 1906 2005