The impact of rainfall upon the surface water and groundwater resources of the desert is greatly influenced by landforms.

降雨对于沙漠地表水和地下水资源的影响很大程度上取决于地形。

youdao

Such programs are much needed because in many arid lands there is only a vague idea of the extent of groundwater resources.

这样的计划是非常必要的，因为在许多干旱地区，我们并不清楚其地下水资源的范围。

youdao

The United Nations Environment Programme and the World Bank have funded attempts to survey the groundwater resources of arid lands and to develop appropriate extraction techniques.

美国国家环境总署和世界银行开始拨款并着手调查干旱地区的地下水资源，以开发合适的开采技术。

youdao

This will be achieved through the compilation of state-of-art scientific and technical knowledge currently available on groundwater resources and their governance.

UNESCO: Programme meetings | United Nations Educational, Scientific and Cultural Organization

Reliance on groundwater however is highly problematic as the exploitation of non-renewable groundwater resources and aquifers are irreversible and difficult to monitor.

UNESCO: OFFICE IN AMMAN

Additionally, the programme will allow Iraqi water engineers across the country to share information on groundwater resources with each other quickly and efficiently.

UNESCO: Social and Human Sciences