Open AccessEcological efficiency evaluation and spatial evolution in Bohai Rim region
Author(s) -
Gai Mei,
Chen Nie
Publication year - 2019
Publication title -
ziran ziyuan xuebao
Language(s) - English
Resource type - Journals
ISSN - 1000-3037
DOI - 10.31497/zrzyxb.20190109
Subject(s) - ecology , environmental science , geography , physical geography , biology