PROGRESS IN GEOGRAPHY ›› 2013, Vol. 32 ›› Issue (3): 425-434.doi: 10.11820/dlkxjz.2013.03.012

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Spatial-temporal change of climate resources and climatic productivity in Shandong Province during 1961-2011

HAN Wei1, HAN Yonghong2, YANG Shenbin1   

  1. 1. Jiangsu Key Laboratory of Agricultural Meteorology, College of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China;
    2. Binzhou Municipal Environmental Protection Bureau, Binzhou 271000, China
  • Received:2012-08-01 Revised:2012-12-01 Online:2013-03-25 Published:2013-03-25

Abstract: Based on the meteorological data of 21 weather stations of Shandong Province during 1961-2011, the spatial and temporal changes of temperature and precipitation were analyzed by the methods of linear trend, IDW, Mann-Kendall, and Fisher optimal segmentation. Then, the climatic productivity was analyzed by Thornthwaite Memorial model, and the sensitivity of climatic productivity to temperature and precipitation was investigated. The results showed a general warming trend in the last 51 years in Shandong, with a tendency rate of 0.359℃/10a. The temperature increased distinctly in the central Shandong. The annual precipitation showed a downward trend with extreme fluctuations; the precipitation variability was high in the 80s of the 20th century. The precipitation decreased distinctly in north, south, and southeast. The climatic productivity exhibited obvious fluctuations with a slight increasing trend. The climatic productivity reached its minimum during 1981-1989, and reached its maximum during 2003-2011. The climatic productivity decreased gradually from south to north and from east to west, and the climatic productivity increased distinctly in southwest. The "warm-wet" climate is favorable to crop production and thus the climate warming is beneficial to the improvement of climatic productivity in Shandong Province. However, little rainfall is the main limiting factor of the climatic productivity. More attention needs to be focused on the utilization of water resources.

Key words: climate resources, climatic productivity, Shandong Province, temporal and spatial variation