Often the cheapest way to provide irrigation water in the dry tropics is through small-scale projects, such as gathering rainfall in depressions and pumping it to nearby cropland.

在干旱的热带地区，提供灌溉水的最低成本的方法通常是建造小规模的工程。例如，在洼地收集雨水，然后将其抽调至附近的农田。

youdao

Better sediment control has reduced the risks of flooding with a network of small DAMS helping store water for towns and for agriculture when rainfall is low.

泥沙控制力度的加大降低了洪水风险，而新建的小型大坝网络可以在降水量较低的情况下帮助集镇和农业储存用水。

youdao

Small changes in rainfall can also trigger volcanic eruptions.

降雨量微小变化也能引发火山喷发。

youdao

Ladakh,situated more than 11,000 feet above sea level, is a high altitude desert where rainfall is usually very small.

VOA: standard.2010.08.06

Uganda has substantial natural resources, including fertile soils, regular rainfall, small deposits of copper, gold, and other minerals, and recently discovered oil.

FORBES: Uganda

Mr Thakkar argues that small projects offer much better returns, even for the crucial task of refilling aquifers by capturing monsoon rainfall.

ECONOMIST: Small projects often give better returns