The term daylighted streams in the text refers to:
Accelerating urban sprawl has historically fragmented wildlife habitats into isolated, ecologically impoverished islands surrounded by impermeable asphalt and concrete. To reverse severe biodiversity attrition, landscape architects and conservation biologists are championing urban rewilding: the deliberate re-establishment of natural ecological succession and vegetative permeability within metropolitan zones. A cornerstone strategy is the construction of contiguous wildlife corridors, including vegetated green bridges over ring roads, daylighted streams, and uninterrupted pollinator highways along abandoned railway easements. These corridors facilitate genetic exchange among previously segregated animal populations, mitigate urban heat island phenomena through evapotranspirative cooling, and enhance stormwater retention during cloudbursts.
Answer and explanation
Correct answer: A. Restoring underground piped waterways back into open-air natural watercourses.
- Step 1: Understand the environmental engineering term "daylighting" in the context of urban hydrology and rewilding corridors.
- Step 2: In urban ecology and landscape restoration, stream daylighting refers to excavating previously buried, culverted, or piped subterranean waterways and restoring them as open-air, naturally vegetated surface watercourses.
Answer
Restoring underground piped waterways back into open-air natural watercourses.
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More Academic Reading: Environment and Society questions
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- It can be inferred from the passage that impermeable urban surfaces:
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