61.1:100,000 landuse dataset of Sichuan province (2000)

       POLES TPDC

    62.1:100,000 land use dataset of Sichuan province (1995)

       POLES TPDC

    63.1:100000 landuse dataset of Shaanxi province (1995)

       POLES TPDC

    64.1:100000 landuse dataset of Gansu province (2000)

       POLES TPDC

    65.1:100000 landuse dataset of Qinghai province (2000)

       POLES TPDC

    66.1:100,000 land use dataset of Gansu Province (1980s)

       POLES TPDC

    67.1:100,000 landuse dataset of Shaanxi province (1980s)

       POLES TPDC

    68.1:100,000 landuse dataset of Qinghai province (1995)

       POLES TPDC

    69.1:100000 landuse dataset of Gansu province (1995)

       POLES TPDC

    70.1:100000 landuse dataset of Shaanxi province (2000)

       POLES TPDC

    71.1:100000 desertification development map of Daqintera (1974)

       POLES TPDC

    72.1:100000 desertification development degree map of daqintera (1958)

       POLES TPDC

    73.The landuse map of Dunhuang at 1:500,000 scale

       POLES TPDC

    74.The presert state map of land use over Yinchuan (1:500,000)

       POLES TPDC

    75.Basic datasets of Urumqi river basin in Chinese Cryospheric Information System

       POLES TPDC