@article{DUAN Xiaofeng_45, author = {DUAN Xiaofeng,XU Xuegong}, title = {Emergy Analysis for Sustainable Development of Resources-Environment-Economy System in the Yellow River Delta}, publisher = {PROGRESS IN GEOGRAPHY}, year = {2006}, journal = {PROGRESS IN GEOGRAPHY}, volume = {25}, number = {1}, eid = {45}, pages = {45-55}, keywords = {

the Yellow River Delta;environment-economic system;emergy analysis;sustainable development

}, doi = https://www.progressingeography.com/EN/10.11820/dlkxjz.2006.01.005 }