朱自玺,牛现增,侯建新. 1988. 冬小麦水分动态分析和干旱预报[J]. 气象学报, 46(2):202-209, doi:10.11676/qxxb1988.025
冬小麦水分动态分析和干旱预报
ANALYSIS OF DYNAMICS OF MOISTURE FOR WINTER WHEAT AND PREDICTION OF DROUGHTS
投稿时间:1986-12-23  修订日期:1987-06-25
DOI:10.11676/qxxb1988.025
中文关键词:  
英文关键词:
基金项目:
作者单位
朱自玺 河南省气象局农业气象试验站 
牛现增 河南省气象局农业气象试验站 
侯建新 河南省气象局农业气象试验站 
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中文摘要:
      土壤非胁迫水分贮存量、作物耗水量和生育期有效降水量是影响冬小麦水分供应状况的主要因子。它们都随时间而变化,不同时间里有不同的对应关系。本文从试验资料出发,建立了冬小麦水分动态方程,比较完整地反映了全生育期水分供求矛盾,揭示了干旱的时间分布和强度。并将Penman公式和生物因子相结合,提出了干旱预报方程,用气象因子和作物因子预报土壤非胁迫水分贮存量,并可应用于区域性干旱分析。
英文摘要:
      Non-stressed moisture stored in soil,water consumption of crops and effective precipitation during crop growth period are the main factors affecting moisture supply to winter wheat.All these change with time,different relationships being manifest for different periods of time.Based on experimental data,the paper deals with the dynamic change of moisture for winter wheat,establishing equation,which more or less卜 completely reflects the contradictions between demand and supply of water in the entire growth period,thus revealing the time distribution and intensity of droughts.The Penman equation is coordinated with biological factors in presenting equation for forecasting droughts.Non-stressed moisture stored in soil is predicted by using both meteorological factors and factors related to the crops,which may also be applied to analysis ofregional droughts.
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