What percentage of its land area is taken up for water catchment?

有百分之多少的土地面积用作水源收集？

youdao

Mabira is also a vital water catchment area for the country's lakes and rivers.

马比拉也是国家湖泊河流重要的水源地。

youdao

Rainstorm design return period of one year, the ground water catchment time for 10 minutes.

暴雨设计重现期为一年，地面集水时间为10分钟。

youdao

In Guernsey, salt can only be used outside the water catchment area because it can contaminate the water supply, so the de-icer CMA needs to be used.

BBC: Sleet and snow forecast for Jersey and Guernsey

Even relatively water-rich countries of the region, such as Malaysia, Indonesia, Bhutan and Papua New Guinea, now face water supply and quality constraints in their major cities because of population growth, growing water consumption, environmental degredation, damaging agricultural activities, poor management of water catchment areas, industrialization, and groundwater overuse.

UNESCO: CULTURE

These have traditionally played the role of water-catchment areas, absorbing any overflow from the river.

CNN: FIGHTING FLOODS