Urban Regions : Ecology and Planning Beyond the City

Color Figure 1Key to cover types and site labels for maps of 38 urban regions (Color
figures2--39). Asterisks (∗)oncertainmapsrefertothefollowing:Bangkok(aquaculture
along bayshore; canal inland);Beijing(canal);Cairo(canal);Chicago(canal);Edmonton
(Native People’s land);Kagoshima(lava flow);London(barrier across river within metro area;
greenbelt around metro area; transportation tunnel entrance/exit to the southeast);
Mexico City(ice, snow, and alpine tundra atop volcanoes; lava flow to the southeast);
Nairobi(ice, snow, and alpine tundra);Philadelphia(saltwater intrusion to the southeast;
40 % of distance toalargercity,i.e.,NewYorktothenortheast);Ottawa(greenbelt around
metro area; 40 % of distance to a larger city, i.e., Montreal to the east);Portland(urban
growth boundary around metro area; ice, snow, and alpine tundra atop volcano; lava
flows to the northeast);Rahimyar Khan(oasis and fort in use in desert; 40 % of distance to
alarger city, i.e., Bahawalpur, to northeast is marked by main road; green area is an
intermixture of cropland, small-tree farming, and natural vegetation);Rome(ice, snow,
and alpine tundra);Santiago(ice, snow, and alpine tundra);Seoul(greenbelt around metro
area; demilitarized zone to the north; barriers across mouths of rivers to the southwest);
Sapporo(ice, snow, and alpine tundra);Tehran(ice, snow, and alpine tundra atop
volcanoes; lava flows on volcano slopes to the northeast);Ulaanbaatar(canal by metro
area; ice, snow, and alpine tundra to the northeast).