So further study on model of influence of human activities on river runoff change and simulation in different regions is necessary.
所以人类活动因素影响下河流径流量变化模型及模拟还有待于针对不同地域、不同时空尺度做进一步的深化研究。
Due to the uncertainties in the climate change impact assessment, current forecasts for the future variation trend of runoff in the Yellow River Basin are inconsistent.
由于气候变化影响评价中存在的不确定性，目前对黄河流域未来径流变化趋势的预测并不一致。
Water resources total quantity, underground water and runoff of river assumes the reduced tendency, has the obvious uniformity with the precipitation change.
全市的水资源总量、地下水、河川径流量呈减少趋势，与降水的变化具有明显的一致性。
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