摘要
分析了绿洲内农区非农区水分转化的机理及绿洲内非农区地下水动态规律。荒地和洼地作为绿洲内自然生态 ,其耗水属于生态用水的范畴。绿洲内部非农区地下水动态属侧渗蒸发型。根据非农区地下水动态监测资料 ,通过计算潜水蒸发 ,估算得绿洲内部非农区依靠潜水生长的天然芦苇全生育期耗水量为 14 4～ 188m m。该结果可为确定干旱区平原绿洲生态需水量 ,实现其水资源合理利用提供科学依据。
Water transformation between agricultural and non agricultural areas,and dynamic changes of ground water regime in non agriculture areas in oasis, is analyzed in this paper. Water consumption of wasteland and marsh is categorized into ecological water utilization and groundwater regime in non agricultural areas in oasis was considered as lateral seepage evapotranspiration type. By calculating phreatic water evaporation on the basis of ground water level data, water consumption of natural reed fed with phreatic water is estimated at 144 mm to 188 mm in entire growth season. The results are helpful for calculating ecological water requirement and planning rationally regional water resources development and utilization in plain oasis in arid areas.
出处
《灌溉排水学报》
CSCD
北大核心
2003年第3期19-21,共3页
Journal of Irrigation and Drainage
基金
国家重大基础性研究 973项目 ( G19990 43 5 0 6)
中国科学院"西部之光"项目
研究所创新领域前沿课题 ( 2 0 0 190 0 4)
