Columbia subject headings:
Harvard subject headings:
Biotic communities--United States--Periodicals.
Nature conservation--United States--Periodicals
Reclamation of land--Periodicals.
Reclamation of land--United States--Periodicals.
Revegetation--Periodicals.
Princeton subject headings:
Conservation of natural resources--Periodicals.
Land use--Planning--Periodicals.
Nature conservation--Periodicals.
Periodicals.