文档介绍：of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
第六讲、水资源的合理利用
课程标准：掌握世界和我国水资源的分布情况，理解目前世界淡水危机的原因及解决措施
一、水资源的分布
1、人类比较容易利用的淡水资源包括河流水、淡水湖泊水、浅层地下水
2、水资源丰歉的衡量的基本指标——多年平均径流总量：R径=P降-E蒸
3、世界水资源分布——不平衡
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warni