川西南雷波地区降水的D和^(18)O同位素研究  

STUDY ON D, 18 O ISOTOPES OF PRECIPITATION IN LEIBO AREA,SOUTHWEST SICHUAN

作　　者：韩庆之[1] 曾克峰 梁杏 宋胜武[2] 张佑廷[2] 石定国 

机构地区：[1]中国地质大学 [2]电力工业部成都勘测设计研究院

出　　处：《地质科技情报》1998年第A02期106-110,共5页Geological Science and Technology Information

基　　金：电力工业部川西南某水电站科研项目

摘　　要：通过对川西南雷波地区不同高程降水站历时一年４８个降水的Ｄ和１８Ｏ同位素资料的回归分析，得到本区大气降水方程，尝试把全年降水期段分为雨季和非雨季，并按降水量加权平均的方法求取了川西南地区降水量效应方程和高程效应方程及δ值高度梯度，使所得结果更加逼近实际，相关系数达０．９４７。By the regression analysis to 48 samples D and 18 O isotope data of precipitation throughout one year which come from precipitation stations of various elevation in Leibo area,Southwest Sichuan,the precipitation equation is obtained in the area.The authors try to devide the periods of precipitation in a year into rainy reason and unrainy reason, and in terms of weighted average method to precipitation, gain the precipitation capacity effect equation, the elevation effect equation and the elevation gradient of δ vaule in Leibo area,Southwest Sichuan. The result considerably approaches to the fact and coefficient of similarity is over 0 9.

关 键 词：西南雷波地区 降水线 水库渗漏 降水 氧18 

分 类 号：P426.612[天文地球—大气科学及气象学] TV697.32[水利工程—水利水电工程]