中国农业气象

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山西寿阳县旱作农业气候生产潜力研究

刘勤;严昌荣;何文清;   

  1. 中国农业科学院农业环境与可持续发展研究所,中国农业科学院农业环境与可持续发展研究所,中国农业科学院农业环境与可持续发展研究所 北京100081,北京100081,北京100081
  • 出版日期:2007-06-10 发布日期:2007-06-10
  • 基金资助:
    农业部农业结构调整重大技术研究专项“华北粮食主产区农业环境监测评价体系研究;; ”Challenge Program on Water & Food“Conservation agriculture for the dry-andareasof the Yellow River Basin”

Studies on Potential Climate Productivity of Dryland Farming in Shouyang County of Shanxi Province

LIU Qin,YAN Chang-rong,HE Wen-qing (Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Sciences,Beijing 100081,China)   

  • Online:2007-06-10 Published:2007-06-10

摘要: 根据1967-1999年气象资料,依据布达哥夫斯基连乘原理,估算了寿阳县的光合生产潜力、光温生产潜力和光温水生产潜力,其多年平均值分别为19.3、12.9和4.9万kg/hm2。4-9月作物生育期内气候生产潜力总值的逐年变化趋势为:光合、光温生产潜力呈总体减小变化,而光温水生产潜力总体减少趋势不明显;4-9月逐月气候生产潜力等值线图表明,20世纪90年代末光合、光温及光温水生产潜力均有不同程度的降低,1999年后的三种气候生产潜力保持继续减少的趋势。

关键词: 气候生产潜力, 等值线图, 北方旱区, 寿阳县

Abstract: Based on the meteorological data for the period of 1967-1999 in Shouyang County,the photosynthetic,the photo-temperature and the photo-temperature-water potential productivities were estimated,which reached at 19.34 t/ha,12.95 t/ha and 4.90 t/ha respectively.The trend of the potential climate productivity during the growing period,namely from April to September year by year showed that the photosynthetic and the photo-temperature potential reduced generally,but the reduced trend of the photo-temperature-water potential was not significant.As showed at the isoline map,all of the photosynthetic,the photo-temperature and the photo-temperature-water potentials showed a decreased trend at different degree in late 1990s.The potential climate productivity kept continued to decline after 1999.

Key words: Potential climate productivity, Potential climate productivity, Isoline map, Dryland farming, Shouyang County