刘静, 王连喜, 马力文, 武万里, 孙银川. 宁夏南部山区小麦干旱监测与灾损评估模型研究[J]. 中国生态农业学报(中英文), 2003, 11(4): 143-147.
引用本文: 刘静, 王连喜, 马力文, 武万里, 孙银川. 宁夏南部山区小麦干旱监测与灾损评估模型研究[J]. 中国生态农业学报(中英文), 2003, 11(4): 143-147.
LIU Jing, WANG Lian-Xi, MA Li-Wen, WU Wan-Li, SUN Yin-Chuan. A loss estimation model and drought monitoring of wheat in mountainous areas of South Ningxia[J]. Chinese Journal of Eco-Agriculture, 2003, 11(4): 143-147.
Citation: LIU Jing, WANG Lian-Xi, MA Li-Wen, WU Wan-Li, SUN Yin-Chuan. A loss estimation model and drought monitoring of wheat in mountainous areas of South Ningxia[J]. Chinese Journal of Eco-Agriculture, 2003, 11(4): 143-147.

宁夏南部山区小麦干旱监测与灾损评估模型研究

A loss estimation model and drought monitoring of wheat in mountainous areas of South Ningxia

  • 摘要: 研究计算了宁夏回族自治区南部山区1961~2000年参考作物蒸散量,并利用FAO 提供的山区小麦K值和历年小麦生育期资料模拟历年逐旬小麦需水量。通过土壤水分平衡方程各分量的订正,求算出历年小麦生长期间实际耗水量和水分满足率,运用包络产量和作物水分生产函数建立了小麦单产干旱监测与灾损评估模型,应用效果良好,可满足监测与灾损评估需要。

     

    Abstract: In this paper,the daily ET0 and ETc are calculated using Kc and FAO-PM from 1961 to 2000,and the evapotranspiration in every 10 days of wheat is estimated by the soil water balance equation.The real water consumption,as well as the degree of the water consum ption and requirements of wheat during the growing Season are established by using the soil water balance equation and means of correcting leakage of soil water and flow of precipitation every year.Based on this work,a loss estimation method on monitoring drought and estimating yield loss of wheat is established using functions of crop growth water and maxlimit of yield.The results show that the effects is satisfied and suitable form nitoring drought and estimating yield loss of wheat on mountainous areas of south Ningxia.

     

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