%0 Dataset %T Research on Frozen Soil (Collection of Papers) No. 21 %J Arid Land Ecology and Resources Science Data Center %I Arid Land Ecology and Resources Science Data Center(data.dcxjegi.cn) %U https://data.dcxjegi.cn/portal/metadata/88f62e19-6c7f-4a48-bd48-60b1b1a0fef6 %W NCDC %R 10.12389/ariddc.02251 %A Documentation Information Center %K ; %X This collection (Series I was published in 1961, Series XX was published in 1982) discusses the research results of new methods of frozen soil measurement and mapping and the prediction of frozen soil conditions.