纽约市为保证清洁水供应而采取的做法为如何利用生态系统节约基础设施开支提供了一个很好的例子。纽约市的用水中约有90%来自于1800平方英里的卡茨基尔/特拉华流域,这是一个非过滤供水系统,包括19个水库和3个受控湖泊,位于该市北部约190公里处。之所以必须实行流域保护计划,其主要压力在于纽约市的饮用水供 The New York City practice of ensuring clean water supplies provides a good example of how ecosystems can save infrastructure spending. Approximately 90% of New York City’s water comes from the 1,800-square-meter Catskill / Delaware basin, an unfiltered water system consisting of 19 reservoirs and 3 controlled lakes located about 190 north of the city Kilometers. The reason why the watershed protection plan must be implemented is that the main pressure lies on drinking water supply in New York City