@article{封建民_56, author = {[封建民, 王 涛, 谢昌卫, 齐善忠]}, title = {黄河源区生态环境退化研究}, publisher = {地理科学进展}, year = {2004}, journal = {地理科学进展}, volume = {23}, number = {6}, eid = {56}, pages = {56-62}, keywords = {

黄河源区;生态环境退化;现状;趋势预测

}, doi = https://www.progressingeography.com/CN/10.11820/dlkxjz.2004.06.007 }