7REES W E. Ecological footprint and appropriated carrying capacity: what urban economics leave out [ J ]. Environment and Urbanization, 1992, 4(2) : 120-130.
8WAKERNAGEL M, REES W E. Our ecological footprint: reducing human impact on the earth [ M ]. Canada: Gabriola Island, BC: New Society Publishers, 1996, 2-17.
10MITCHELL D S, CHICK A J, RAISIN G W. The use of wetlands for water pollution control in Australia[ J]. Water Science and Technology, 1995, 32(3): 365-373.
