@data{10.12072/ncdc.YRiver.db0050.2021,
title = {Distribution of primary, secondary, tertiary and tertiary water conservation areas in the middle and upper reaches of the Yellow River Basin},
author = {Zhang yaonan and Kang jianfang and Liu chun},
url = {http://www.ncdc.ac.cn/portal/metadata/402825e2-64ac-4c79-92fc-54f4f9739bd8},
cstr = {11738.11.ncdc.YRiver.2021.38},
doi = {10.12072/ncdc.YRiver.db0050.2021},
journal = {National Cryosphere Desert Data Center},
publisher = {National Cryosphere Desert Data Center(www.ncdc.ac.cn)}
}