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通过对泾河流域雨落坪、杨家坪和张家山三个主要水文站产流特性的分析，建立了两种降雨产流模型，并用之分片计算了流域１９７０年～１９８９年人类活动对地表径流量的影响量。计算结果表明：１９７０年～１９８９年泾河张家山以上（包括泾惠渠引水）人类活动年均减水５．７９６亿ｍ３，占总减水量的９０％；因降雨年均减水０．６５６亿ｍ３，占总减水量的１０％；泾惠渠年均引水量４．３９５亿ｍ３，占人类活动总减水量的７５．８％。
Based on the analysis of runoff characteristics of three main hydrological stations in Yuheping, Yangjiaping and Zhangjiashan in Jinghe River Basin, two rainfall runoff models were established, and the effects of human activities on surface diameter The amount of traffic impact. The calculation results show that from 1970 to 1989, the average annual water-reducing activity of human activities in Zhangjia Mountain above Jinghe River (including Jinghui River diversion) was 579.6 million m3, accounting for 90% of the total; and the average annual rainfall decreased by 0.656 100 million m3, accounting for 10% of the total water reduction; Jinghuiqu annual average water diversion volume of 439,500,000 m3, accounting for 75.8% of total human water reduction.