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2017 | 26 | 2 |
Tytuł artykułu

Inter-decadal spatiotemporal variations of aridity based on temperature and precipitation in Inner mongolia, China

Autorzy
Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In the past few decades, drought has been a frequent phenomenon in many parts of the world, especially in arid and semi-arid regions. Hence in order to better predict the development trend of drought in Inner Mongolia and formulate corresponding countermeasures for disaster prevention and mitigation, for this paper we calculated the aridity index according to the annual mean precipitation and temperature data of 109 stations covering 1961-2010. The study result indicated that the mean aridity degree was increasing from west to east and was mainly characterized by moderate aridity; from 1961 to 2010 the change of aridity has been decreasing while aridity has been increasing, especially after the abrupt changing point in 1995. Moreover, the decreasing area of aridity took up 82.6% while the increasing area only occupied 17.4% of the whole area. During a 50-year time scale, the annual mean aridity oscillation periodicity was at 49a, 25a, and7a, and Inner Mongolia was still at a stage of aridity that might last for a long time. Regarding different decades, the climate of Inner Mongolia was relatively humid in the 1980s; however, as time went by the area of moderate aridity degree increased while the humidity area decreased in the early 21st century. Therefore, it was clear that the climate was becoming drier year after year. From 1960 to 2010, contours lower than 30 shifted toward longitude direction and contours more than 30 moved in the direction of latitude.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
26
Numer
2
Opis fizyczny
P.819-826,fig.,ref.10.15244/pjoes/65840
Twórcy
autor
  • School of the Environment, Natural Disaster Research Institute, Northeast Normal University, Changchun 130024, People’s Republic of China
  • College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, People’s Republic of China
autor
  • School of the Environment, Natural Disaster Research Institute, Northeast Normal University, Changchun 130024, People’s Republic of China
autor
  • 2 College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, People’s Republic of China
Bibliografia
  • 1. PARRY M.L., CANZIANI O.F., Palutikof J.P., LINDEN P.J.V.D., HANSON C.E. Climate change 2007: impacts, adaptation and vulnerability. contribution of working group ii to the fourth assessment report of the intergovernmental panel on climate change. summary for policymakers. Astronomische Nachrichten. 332 (7), 697, 2011.
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  • 3. YANG J.P., DING Y.J., CHEN R.S., LIU L.Y. The interdecadal fluctuation of dry and wet climate boundaries in China in recent 50 years. Acta Geographica Sinica. 57 (6), 655, 2002.
  • 4. LIU B., MA Z.G. Area change of dry and wet regions in China in the past 45 years. Arid Land Geography. 30 (1), 7, 2007.
  • 5. ZHENG G.F., CHENG X.G., ZHAO G.P., NA L., SUN Y.C. Evolvement law of surface humid status and extreme dry-wet events in Ningxia. Journal of Desert Research. 27 (2), 326, 2007.
  • 6. PU Z.C., ZHANG S.Q., WANG S.L., ZHOU X.L., FENG Z.M. The spatial-temporal variation characteristic of dry-wet climate in recent 48 years in Xinjiang province. Journal of Desert Research. 31 (6), 1563, 2011.
  • 7. WANG H.M., LI Z.H., HAN G.D., ZHANG Y., WU L., SONG G.B. The analysis on the spatial-temporal change of climate aridity in Xilinguole steppe. Acta Ecologica Sinica. 30 (23), 6538, 2011.
  • 8. RORA V. K. The use of the aridity index to assess climate change effect on annual runoff. Journal of Hydrology. 265, 164, 2002.
  • 9. MAO F., SUN H., YANG H.L. Research progress in dry/wet climate zoning. Progress in Geography. 30 (1), 17, 2011.
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  • 11. LI M., XIA J., CHEN S.M., MENG D.J. Wavelet analysis on annual precipitation around 300 years in Beijing area. Journal of natural resources. 26 (6), 1001, 2011.
  • 12. JIANG X.Y., LIU S.H., MA M.M., ZHANG J., SONG J. A wavelet analysis of the precipitation time series in Northeast China during the last 100 years. Geographical Research. 28 (2), 354, 2009.
  • 13. BAO Y., LI X.B., LI C., HUANG L.M., YU J. Spatial-temporal distribution characteristics of temperature in Inner Mongolia during 1961-2007. Journal of Arid Land Resources and Environment. 24 (12), 80, 2010.
  • 14. BAO Y., LI X.B., HUANG L.M., ZHANG Y.X., WANG H. Spatial-temporal distribution characteristics of precipitation in Inner Mongolia from 1961-2007. Arid Land Geography. 34 (1), 52, 2011.
  • 15. DU J., BIAN D., HU J., LA B., ZHOU K.S. Responses of climatic change on surface humid index in Northern Tibet during the period of 1961-2006. Acta Ecologica Sinica. 29 (5), 2437, 2009.
  • 16. SHANG Z.B., GAO Q. Assessing the sensitivity of China water condition to global climate changes. Acta Ecologica Sinica. 21 (4), 528, 2001.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-04328b35-abc1-4078-8bb1-7919c7a0c280
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