Which location has the ecosystem of kelp forest?
CREATE TABLE "the_sheets" (
  "ecosystem" text,
  "date_of_issue" text,
  "place_of_issue" text,
  "no_stamps_in_sheet" real,
  "face_value" text,
  "printer" text
);
SELECT "place_of_issue" FROM "the_sheets" WHERE "ecosystem"='Kelp Forest';