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Acta Prataculturae Sinica ›› 2014, Vol. 23 ›› Issue (2): 1-8.DOI: 10.11686/cyxb20140201

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Prediction of pasture reviving period and analysis of its climate potential productivity

DUAN Xiao-feng1,2, ZHANG Lei1,2, WEI Jian-guo1,2, ZHU Yong-ning1,2, YANG Yang3, JIN Fei4   

  1. 1.Ningxia Key Laboratory for Meteorological Disaster Prevention and Reduction, Yinchuan 750002, China;
    2.Ningxia Institute of Meteorological Sciences, Yinchuan 750002, China;
    3.Huinong Meteorological Bureau, Shizuishan 753200, China;
    4.Wuzhong Meteorological Bureau, Wuzhong 751100, China
  • Received:2013-05-20 Online:2014-02-25 Published:2014-04-20

Abstract: To find reasonable and effective control measures for development of livestock and pasture in our region and to keep an ecological balance and healthy development of pasture, to control soil erosion, develop climate resources, achieve pasture resources sustainable use and improve the ecological environment, a regression model was built in the context of climate change, by applying SPSS to explore the revival indicators of Ningxia representative natural pasture (Gramineae, Leguminous). Climate potential productivity was calculated using the Miami and Tharnthwaite Memorial models. The reviving period of Gramineae was the date that sliding average temperatures of five days stably exceeded the first day of 0℃ accumulated temperatures of 11-17 days later. Legumes turned green 4 days before to 6 days after the forecast date. Attenuation of light potential production was smaller than that of water which was the main limiting factor of grass climate potential productivity. Pasture re-greened earlier and climate potential productivity increased slightly with a trend of temperature rising and rainfall increasing.

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