摘要
针对石羊河流域特殊的自然条件,结合水资源开发利用状况,以多年实测资料为依据,对流域水资源演变规律及变化趋势进行了分析。结果表明,地表水年内分配变化较大,年际分布呈衰减的趋势,空间上垂直和水平方向上都呈梯度分布;地下水持续下降,民勤近期尤为明显。研究结果对于流域水资源可持续利用具有指导作用。
Pointed to the special natural condition in Shiyang River Basin, combined the develop-ment and utilization of water resources, based on fifty years measured data of runoff in the mainstation, the evolution rule and changing trend for the water resources in the basin have been ana- lyzed. The results have shown that the runoff distribution in year was variable a lot and the yearly distribution was shown the decline trend. The ground water table was degraded year by year, especially yearly distribution in recent years im Minqin County. All of these results can be used as guidance for the water resources sustainable utilization in the Shiyang River Basin.
出处
《水资源与水工程学报》
2007年第5期23-27,共5页
Journal of Water Resources and Water Engineering
关键词
水资源
演变规律
石羊河流域
water resources
evolution rule
Shiyanghe River Basin
