中国古代文献中坎儿井的概念：神话还是现实？

The Karez Concept in Ancient Chinese Sources Myth or Reality?

新疆的坎儿井早在两千年前的汉代即出现其雏形。

Xinjiang Karez back in the Han Dynasty two thousand years ago, there were problems of its shape.

以哈密地区为研究区，选取具有代表性的部分坎儿井进行动态监测分析。

This paper took the Hami area as the studied area, some typical Karezs were dynamically monitored and analyzed.

于是当地人民在这种特殊的地理生态环境下创造出了坎儿井的节水保水灌溉方法。

So the local people in this particular geographical, ecological environment and created a Karez water-saving water conservation irrigation methods.