东北边境口岸土地资源合理利用与功能分区探究——以黑龙江省东宁县为例
동북변경구안토지자원합리이용여공능분구탐구——이흑룡강성동저현위례
Land Use and Functional Zoning in Border Areas in Northeast——Taking Dongning County of Heilongjiang Province as an example