摘要
从宝鸡峡灌区水资源形成及转化的角度出发界定了灌区耗水量的概念。通过对灌区水量平衡关系分析，建立了灌区地下水量平衡模型，通过模型计算与分析，结果表明渠系及田间入渗补给量、地下水开采量是主要的地下水平衡要素；宝鸡峡灌区1991-2003年渠系蒸发及浸润损失量和渠系渗漏补给量总体呈递减的趋势，当渠首引水量和渠系利用系数一定时，渠系蒸发及浸润损失量和渠系渗漏补给量呈反比关系。灌区田间灌溉耗水量与田间灌溉入渗补给量也呈递减趋势；灌区地下水耗水量和地下水开采量总体呈上升趋势。
Based on water resource＇s forming and transforming in Baojixia irrigation area,we defined the concept of water consumption. By the fact that water balance concerns analysis to irrigation area. The irrigation area ground water balance model was built. Results indicate the canal department and enter in the field to seep supplying amounts and groundwater exploiting amounts being main groundwater balances a key element. The leakage evaporating and infiltrating the department who loses amounts and the canal re- plenishes amounts with population assume the degressive trend in 1991 to 2003. When water transfer a- mounts in canal intake being constant, the canal is that the leakage evaporating and infiltrating the department who loses amounts and the canal replenishes amounts memorials with inverse relation. The irrigation area field irrigation water consumption and the field irrigate into infiltrate the military supplies quantity al- so to assume the degression tendency. The irrigation area ground water water consumption and the ground water mining quantity overall assumes the trend of escalation.
出处
《灌溉排水学报》
CSCD
北大核心
2007年第4期16-20,63,共6页
Journal of Irrigation and Drainage
基金
水利部黄河水利委员会黄河联合研究基金项目(50279042)
国家科技支撑计划(2006BAD11B05)
关键词
灌区
耗水量
地下水均衡
影响因素
irrigation area
water consumption
balance of groundwater
influence factor
