what are reasons why rivers may be healthy
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Answer:
Just as there is no single measure for human health, there is no single measure for river health. Rather, a healthy river is comprised of many facets — biological, physical, chemical, and even human.
It does not have to be a pristine river, untouched by any human development or activities. But a healthy river does have to be resilient and able to recover from natural and man-made disturbances.
A river’s health is measured on a continuum, just as a human’s health is. A river in the wilderness may rank the highest, but a river flowing through a major metropolitan region is not inherently unhealthy. Rather, the traits of an ecologically healthy river will have certain components that fall within a range that allows the river to maintain its ecosystem functions.
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