【摘要】 在系统收集整理中国北方六大典型盆地降水与地下水氢氧同位素资料基础上,依据同位素形成演化相似性原理,对比分析同位素组成及其关系方程得出:受大陆效应的影响,从东部河北平原到西部塔里木盆地其大气降水方程的斜率和截距大多逐渐增大;河北平原等六大盆地平原浅层地下水的蒸发强度逐渐增大;与全球大气降水方程(δD=8.2δ18O+10.8)相比,六大盆地平原的大气降水方程斜率、截距均偏小或斜率偏小,反映出这几大盆地和平原为干旱、半干旱地区降水量小、蒸发强的特点。更多还原

【Abstract】 Based on the systemic collecting and coordinating of the data of hydrogen and oxygen isotope in the precipitation and groundwater of typical basins for the northern part of China, the isotope composition and its relation equation are analyzed according to the similarity principle of the isotopic forming and evolvement. It is concluded that the most slopes and intercepts of the atmosphere precipitation equations for Hebei plain to Talimu basin increase gradually owing to the effect of continent; the intensity of evaporation of the shallow groundwater in the six basins and plains such as Hebei plain increases gradually; the slopes and the intercepts of the atmosphere precipitation equation for the six basins and plains are smaller than those from the equation for the world(δD=8.2δ~ 18 O+10.8),which show that these basins and plains are the arid or semi-arid regions and with the characteristics of the little amount of precipitation and strong evaporation.更多还原