東南アジア大陸山地部における人口変動と水田開拓　－ラオス北部ウドムサイ県のアイ村を事例として－

摘要

Population dynamics have been reacted with social conditions sensitively. In this case, a decrease of natural increasing rates started before implement of social infrastructure by government, sanitation improvement by foreign aid projects. Therefore, factors of stability of population will be recovering of public security and local order. In addition, main factor of agricultural land have been shifted from food security to economic wealthy.