According to the article “Once Parched, Florida Everglades Finds Its Flow Again,” the part of the Florida Everglades system that has dried up is the organic peat soils.
To find out which part of the Florida Everglades system has dried up according to the article "Once Parched, Florida Everglades Finds Its Flow Again," you would need to read the article. The information provided in the article will give you the answer to the question. You can access the article online or in a library to read the details and find out which part of the Florida Everglades system has dried up.