土地资源人口承载力是关系粮食安全、土地合理利用、社会经济发展规模和可持续发展的重要因素，文章以中国大陆31个省区市为研究对象，从自然和经济两维度分析1997年、2012年各省市的土地资源人口承载力空间变化和区域差异特点，为土地利用合理利用提供方向。研究结果表明，31省区市总体呈承载人口潜力大于现实人口规模态势且地域差异性明显，黑龙江、吉林、内蒙古自然承载力最大，北京、天津、上海经济承载力最大，区域不均衡发展，超载与盈余并存。%Population supporting capability of the land resources is a key element of the food security ,the land’s reasonable exploit ,the social economy’s scale and the social economy’s sustainable development .This thesis adopts thirty -one provinces of Chinese continent as the study object ,while depending on the two researching dimensions of the nature and economy as the study angle to space comparative analyze the population supporting capability of the land resources of every province and municipality a -bout the year of 1997 and 2012 .Finally this thesis proves that the current situation of the Chinese land resources capability is gen -erally appeared as the potential population supporting capability being far more than the superficial population supporting capabili -ty .And every continental province or municipality has its own obvious regional characteristics ,that are the uneven development , or the overburden and surplus are coexisted .
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