石家庄市土地利用生态位分析及可持续发展研究

土地利用变化是土地利用类型从低生态位向高生态位转变的自组织行为。在生态位理论基础上,运用土地利用生态位模型定量分析了石家庄市土地利用数量生态位和经济生态位。研究表明,石家庄市土地利用数量生态位中,耕地数量生态位最高,其次是草地、林地和城镇村及工矿用地,交通运输用地数量生态位最低;2000—2009年期间,耕地、草地数量生态位呈总体下降趋势,园地、林地、城镇村及工矿用地和交通运输用地数量生态位呈总体上升趋势;农用地与建设用地经济生态位差值较大,近几年市域经济发展和城市化进程加快更加剧了这种差值的进一步拉大。最后,根据不同土地利用类型的特点,从提高土地利用经济生态位的角度探讨了土地可持续利用的途径。

Niche of Land Use and Sustainable Development of Shijiazhuang City

Land use change is a self-organized behavior of conversion from low niche level to high level.On the basis of niche theory,this paper applied land use niche models to quantitatively analyze the land use quantity niche and economic niche.The study shows that the cultivated land quantity niche is the highest,followed by grassland,woodland and urban villages and industrial land,transportation land quantity niche is the lowest.During the years of 2000—2009,cultivated land and grassland showed a general downward trend,garden,woodland,urban villages and industrial land and transportation land were in an overall upward trend in the niche.There is a different niche between agricultural land and construction land,and economic development and urbanization process make the the difference between the two further widen in Shijiazhuang City.Finally,according to the characteristics of different types of land use,this paper discusses the approach of sustainable land use from the perspective of improving economic niche.