@data{10.12072/casnw.041.2018.db,
title = {1:700000 land cover data set of Ningxia Hui Autonomous Region in 2000},
author = {YanChangzhen and XieJiali},
url = {http://www.ncdc.ac.cn/portal/metadata/a821ab13-adc8-4f76-84cb-4c956f92ed38},
cstr = {11738.11.ncdc.nieer.2020.1436},
doi = {10.12072/casnw.041.2018.db},
journal = {National Cryosphere Desert Data Center},
publisher = {National Cryosphere Desert Data Center(www.ncdc.ac.cn)}
}