NDLI: Characteristics of climate change in southwest China karst region and their potential environmental impacts

Content Provider	Springer Nature Link
Author	Lian, Yanqing You, Gene Jiing Yun Lin, Kairong Jiang, Zhongcheng Zhang, Cheng Qin, Xiaoqun
Copyright Year	2014
Abstract	Global warming, due to the enhanced greenhouse effect, is likely to have significant effect on the hydrological cycle, which would result in more evaporation, more precipitation, and uneven distribution of precipitation around the globe. Some parts of the world may see significant reduction in precipitation, or major alterations in the timing of wet and dry seasons, and increases in both floods and droughts. In China, a warming trend has been observed across the mainland region during the past 50 years, with an increasing temperature of about 0.2–0.3 °C/10 year in northern and less than 0.1 °C/10 year in southern China. To understand the characteristics of climate change, this study has conducted statistical analysis on climate parameters from 12 representative meteorological stations in southwest China karst region. The non-parametric Mann–Kendall rank statistic method and the Pettitt–Mann–Whitney change point statistics were used, respectively, for the change trend and change point analyses of daily temperature and precipitation at each station. The 5-year moving averages of 11 climate parameters showed a clear increase in the maximum and minimum annual average temperature in southwest China, however, no consistent increase for precipitation. In addition to temperature and precipitation, changes in the atmospheric pressure, wind speed, and cloud cover were also observed from this study. Changes in climate characteristics will or have altered the hydrologic cycle in the region, which would induce more frequent drought and flood, redistribution of water resources, rocky desertification, and carbon balance, and will ultimately have great impacts on the social, economic, and environmental life in the region.
Starting Page	937
Ending Page	944
Page Count	8
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	74
Issue Number	2
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-11-15
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Climate change Change trend Environmental impact Southwest China Karst Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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