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水文测验是水文工作的基础。它要超前发展,而其效益则均属间接效益。它的重要性和特点不容易被充分认识,成为影响其发展的一个因素。中国对水文现象的观察和观测开始得很早,居世界前列。公元前200多年,李冰建都江堰,立三石人于水中,观测水位。秦汉已有要地方向朝廷报告降雨情况的制度。三国时期,已有比石人更准确的水则。宋代已有天池盆、圆罂等测量降雨深度的仪器,水位观测也已有一定发展。令人惋惜的是,这些观测成果很少留传下来。能查考到的只有少数用石刻等形式保存下来的罕
Hydrological testing is the basis of hydrological work. It should advance ahead of time, and its benefits are indirect benefits. Its importance and characteristics can not be fully understood and become a factor that affects its development. China’s observation and observation of hydrological phenomena started very early and tops the world. In 200 BC, Li Bingjian built Dujiangyan, Li three stone people in the water, observe the water level. Qin and Han have to place the system to report the situation of rainfall to the court. Three Kingdoms period, there are more accurate than the stone man. The Song Dynasty has Tianchi basin, round and other instruments to measure rainfall depth, water level observation has also been a certain development. What is regrettable is that these observations have rarely been passed down. Can be found only a few preserved in the form of stone and other rare