前两年我在新疆吐鲁番调查,看到有些农田因缺水而荒芜着,南疆塔里木河中下游因断流而造成大片胡杨林死亡,罗布泊早已不存在了。在宁夏盐池看到用汽车运水浇树,从盐池到同心的一百多公里两旁的行道树绝大部分没有成活。缺水的问题不仅西北有,华北一些农村甚至连饮用水都有困难。目前我国有180多个大中城市缺水,其中最严重的有北京、天津、上海、沈阳、武汉、青岛等40多个城市。随着 In the first two years of my investigation in Turpan, Xinjiang, I noticed that some farmlands were deserted due to lack of water and large areas of Populus euphratica died due to the current interruption in the middle and lower reaches of the Tarim River in the southern border. Lop Nur already ceased to exist. In Ningxia, Yanchi saw the use of motor vehicles to water the trees. Most of the road trees on both sides of more than 100 kilometers from Yanchi to Concentric did not survive. The problem of water shortage not only in the northwest, some rural areas in North China even have difficulties in drinking water. At present, there are over 180 large and medium-sized cities in our country lacking in water. The most serious of them are over 40 cities such as Beijing, Tianjin, Shanghai, Shenyang, Wuhan and Qingdao. along with