The database of land use can provided more accurate and more scientific decisive information for the optimal management model of land resource if only spatial data origins are renovated periodically.
要使土地利用数据库的成果在土地资源管理的模式优化方面取得显著成就，必须定期革新数据源。
The database of land use can provided more accurate and more scientific decisive information for the optimal management model of land resource if only spatial data origins are renovated periodically.
要使土地利用数据库的成果在土地资源管理的模式优化方面取得显著成就，必须定期革新数据源。
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