Measurement method of regional water resources carrying capacity based on ecological footprint

Abstract

Studying water resources carrying capacity is the basis and premise for determining regional socio-economic development, and it is the need to measure the sustainable use of water resources. Based on the ecological footprint (EF) method, the calculation method of regional water resources ecological carrying capacity is proposed, and the macro and micro analysis of water resources carrying capacity in the city is carried out. The results of the macro analysis show that the per capita water EF of the city from 2012 to 2019 is basically stable, with a slight increase overall. The EF of water resources accounts for the largest proportion of the city’s EF, but it has decreased from 86.2% in 2012 to 79.0% in 2019. The proportion of aquatic products’ EF is rising, rising from 13.75% to 21%. The water ecological carrying capacity of the city is mainly determined by the number of water resources. The micro-analysis results show that in 2019, the city’s water resources system showed an ecological loss with a loss rate of 37%. The ecological carrying capacity of water resources is overloaded. The growth of the floating population in the process of urbanization has greater pressure on the ecological carrying capacity of regional water resources.