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一、黄河的重要地位和作用黄河是我国第二条大河。西起青藏高原,横贯我国大西北,穿越黄土高原地区,流经中原腹地,东注渤海。流域面积七十五万二千多平方公里,有人口一亿一千多万,耕地三亿亩,是我国重要粮棉产区,战略地位十分重要。黄河水土资源十分丰富,年平均水量四百八十亿立米,年输沙量十六亿吨。目前流域内灌溉面积达五千万亩左右,每年用水量二百多亿立米,尚有水量二、三百亿立米流入大海(其中很大一部分是汛期水量),只要大力蓄洪用洪,发展灌溉尚有很大的潜力。特别是黄河源远流长,不失为西北、华北地区一大水源,对于这两
First, the important status of the Yellow River and the role of the Yellow River is the second largest river in our country. From the Qinghai-Tibet Plateau to the west, it traverses the northwest of our country, crosses the Loess Plateau, and flows through the hinterland of the Central Plains to the east of the Bohai Sea. The basin covers an area of over 752,000 square kilometers and has a population of over 110 million and arable land of 300 million mu. It is an important grain and cotton-producing area in China. Its strategic position is very important. The Yellow River has abundant soil and water resources with an average annual volume of 48 billion cubic meters and an annual sediment discharge of 1.6 billion tons. At present, the irrigated area in the basin amounts to about 50 million mu and the annual water consumption is over 20 billion cubic meters. There are still 230 million cubic meters of water flowing into the sea (a large part of it is flood season water) There is great potential. In particular, the Yellow River has a long history, after all, a major source of water in Northwest China and North China, for these two