在东部的黄河—洛河之间存在次级地下分水岭，但对整个岩溶水的径流影响不是很大。

There is an underground watershed between the Huanghe River and Luohe River which has no obvious effect on the runoff.

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同一含水系统中在至少两个排泄区(点)之间有足够的地下水补给源情况下，两个排泄区(点)之间才能形成地下水分水岭。

There will be a possible groundwater divide, if it can get enough groundwater to recharge between two discharging areas in a aquifer system.

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水均衡分析法原理是根据岩溶系统径流反推补给面积，进而确定地下水分水岭的位置。

The principle for water balance analysis is to reversely derive the area of water supply according to runoff amount in the karst system, further to determine the position of the groundwater divide.

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