Open AccessEvaluation of Carrying Capacity on Water Resources Based on Improved Water Footprint Method
Author(s) -
Xiangming Kong,
Donglin Wang,
Zhao Jing,
Chunxiao Wang,
Rong Cheng
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/793/1/012033
Subject(s) - carrying capacity , water resources , footprint , virtual water , water use , principal component analysis , environmental science , water resource management , water conservation , water scarcity , computer science , geology , ecology , paleontology , biology , artificial intelligence
A water footprint based principal component analysis method (WFPCA) has been proposed for evaluation of carrying capacity on water resources. The evaluation indexes can be defined based on the water footprint theory. Then the comprehensive evaluation value of water resources carrying capacity can be generated by the method of principal component analysis. The developed WFPCA method has been applied in the case study in Tongliao City, China. The results show that the indexes defined based on the water footprint theory can reflect the interactions between human being activities and water resources systems. The readjustment of water utilization structure affects the practical water use and the virtual water footprint in Tongliao City. The comparison of comprehensive evaluation values from 2010 to 2019 indicates that the water resources carrying capacity in Tongliao City continues to increase, which is benefited from the reasonable planning of water resources systems and the effective management of environment systems.