Climatic Trends and Impact on Agriculture in Ningxia

Abstract:

This paper characterizes the climate characteristics and observed climate variability in Ningxia, China, using observed daily data from 15 meteorological stations. Climate indices until 2050 and 2100 are projected using the Regional climate impact models PRECIS (Providing Regional Climates for Impacts Studies), emphasizing those which are relevant to agriculture. The results show that the average temperature in Ningxia has increased from 1961-2010 while the mean precipitation has decreased. The frost-free period and accumulated temperature ≥0°C have also increased. Frost-free periods have increased and extended the growing season. PRECIS shows that the annual average temperature, minimum and maximum temperature is projected to increase. Annual precipitation will not change significantly, but the observed dry spells will continue. Increasing temperatures are beneficial for most crop yields but also increase the risk of plant diseases as planting and harvesting times have changed and will change. The regional disparity of water availability, demand and actual use will further be aggravated in future.

• Periodical: Advanced Materials Research (Volumes 518-523)
• Pages: 5921-5930
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.518-523.5921
• Online since: May 2012
• Authors: Hong Xiang Chen, Ya Ping Li
• Keywords: Agriculture, Climatic Change, Impact

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