【摘要】 <正> 甘肃省河西走廊由于远离海洋和受高山阻隔而成为干旱区。但因特殊的地理环境而有南部祁连山水源涵养林调蓄降水和冰雪融水,形成了三大内陆河水系,灌溉河西走廊7.0×10~5更多还原

【Abstract】 GM(1,1) model groups for predicting runoff amount of Heine River basin on northern slope of the Qilian Mountains are built up with grey system theory. The forest eco-environmental factors influencing runoff amount of Heihe River are analyzed, their connectivities are: precipitation≥0℃ accumulated temperature>forest eco-hydrological factors. The runoff amounts of Heihe River in 1989-2005 and their fluctuation trends are predicted, which provides scientific bases for rational development and utilization of water resources in industry and agriculture.更多还原