21世纪中国的水危机

• 出 处: 治黄科技信息
• 发表日期: 1997年04期
• 关键词: 年平均 统计资料 城镇生活用水 水资源短缺 用水结构 用水预测 水资源总量 南水北调东线 水资源量 胶东半岛

中国从70年代就闹水荒,80年代以来,水荒由局部逐渐蔓延至全国,情况越来越严重,对农业和国民经济已经产生了严重影响。据统计资料,1949～1993年,全国总用水量增加了4000多亿 m~3,年平均增加100亿m~3,但1980～1993年增加了813亿 m~3,年均只增加62亿 m~3;农业用水量从80年代开始有下

Since the 1970s, China has become a waste of water and water. Since the 1980s, water scarcity has gradually spread from the local areas to the whole country. The situation is getting worse and worse, which has had a serious impact on agriculture and the national economy. According to statistics, from 1949 to 1993, total water consumption in the country increased by over 400 billion m 3, with an average annual increase of 10 billion m 3, but an increase of 81.3 billion m 3 from 1980 to 1993 with an average annual increase of only 6.2 billion m ~ 3; Agricultural water use has been under way since the 1980s