黑龙江省土地承载力与农业可持续发展

LAND CAPACITY AND AGRICULTURAL SUSTAINABLE DEVELOPMENT IN HEILONGJLANG PROVINCE

确定一个地区的农业自然资源的承载力可为地区及全国的重大发展决策提供科学依据。黑龙江省土地承载潜力超过 10 0万人的有 11个县 ;承载潜力在 50万～ 10 0万人的有 2 7个市县 ;承载潜力 2 0万～ 50万人的有 2 6市县 ;承载潜力 <2 0万人的有 10市县 ;人口承载密度在全省的分布总趋势是山区低于平原 ,承载密度较高的市县主要分布在松嫩平原 ;全省人口总体上未超载 ,承载率为 0 71,还可供养 1469 2 6万人 ,按 12 10‰的人口增长率计 ,中等水平投入和高水平投入分别在 60年内和 10

Agricultural natural resources capacity at a local level will give scientific guidance to decision-making at a local or a national levels.There are 11 Counties,the land capacity can support more than 1 million people,28 Counties and cities the capacity is between 0 5 and 1 million people,26 counties and cities is between 0 2 and 0 5 million people,10 cities and towns less than 0 2 million people support.The pattern of population capacity density is higher in plain region than that in mountain or hill area.Generally speaking,the capacity is 0 71 in Heilongjiang province.The land in Heilongjiang can support 0 4693 million people more.According to the population increasing rate 12 10%,the capacity can support the populanon increase within 60 years at middle - level investment or 100 years at high-level investment.