摘要
以中国气象局整编的1961-2001年的气象资料为数据基础,采用联合国粮食及农业组织(FAO)1998年推荐使用的Penman-monteith模型,并以GIS技术为手段进行黄河流域气候水分盈亏的时空分布格局分析。结果表明:黄河流域干旱缺水是一种普遍现象,气候水分盈亏量在空间上总的变化规律表现为自南向北、自东向西气候水分亏缺量呈逐渐增大趋势,大部分地区全年气候水分亏缺量介于200-600 mm之间;就季节分布而言,水分亏缺的主要时期在春季和初夏,亏缺量一般在180-300 mm之间;就典型站点气候水分盈亏量逐月变化而言,存在着区域差异。研究结果和结论对区域充分发挥水分利用效率、发展高效节水农业具有重要意义。
Based on the data from 1961 to 2001 of 85 weather stations, according to the Penman-monteith model of Food and Agriculture Organization of the United Nations （FAO） nominated in 1998, the spatial and temporal structure and changes of climatic water deficit in the Yellow River Basin were discussed. It was showed that water shortage was a common phenomena in the Yellow River Basin, and the amount of climatic water deficit increased gradually from south to north and from east to west in the space, which chained between 200 mm and 600 mm in the most areas. In views of the seasonal changes of climatic water deficit, water shortage happens in spring and early summer, which is exposed to being between 180 mm and 300 mm generally. In views of the changes of climatic water deficit in every month in typical stations, there presented regional differences. The conclusions were very important to increase water utilization efficiency and high efficient agricultural construction of water saving in the Yellow River Basin.
出处
《气候与环境研究》
CSCD
北大核心
2007年第1期74-80,共7页
Climatic and Environmental Research
基金
中国工程院咨询项目"中国区域农业资源合理配置
环境综合治理和农业协调发展战略研究"
ChallengeProgramonWater&Food"Conservationagricultureforthedry-landareasoftheYellowRiverBasin"
国土资源部百名优秀科技人才计划项目
关键词
气候水分盈亏
时空格局
黄河流域
climatic water deficit, spatial and temporal structure, Yellow River Basin
