Though wetlands are one of the most significant natural systems of earth,peeople have not reallized its benefits completely till now.Viewed as "the kidneys of landscape",wetlands cleanse both nutural and human's pollution,and ar the same time,wetlands help species live by supporting food and habits.
Times have changed ,and so does people's attitude,from developing economy at the expense of wetlands to excalating the economic value of wetlands,people are attempting to boost the management of wetlands,and more attention paying from the public is helping solve this deficiency.That's also the author' aim.
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