滨海生态脆弱区土地利用功能时空分异特征研究

为减少滨海生态脆弱区不合理的土地利用方式,实现土地资源的可持续利用,以河北省重要的生态脆弱区——黄骅市为研究区,从土地利用的生产功能、经济功能、生态功能与社会功能4个角度切入,构建土地利用功能评价指标体系,定量分析黄骅市2003—2012年土地利用功能的动态变化与空间分异特征。结果表明:1)2003—2012年,黄骅市土地利用总功能动态变化度达97.30%,呈现快速上升趋势。2012年土地利用功能实现率为0.65,处于中度可持续水平,有待进一步提高。2)黄骅市土地利用功能在空间分布上呈现集聚特点,生产功能主要集中在市域远离海边的西部,生态功能较好的区域主要集中在市域东北部,社会功能和经济功能处于优势地位的区域主要集中在黄骅市中部。结果表明黄骅市土地利用功能逐渐向着多功能方向发展,但是协调度依然很低。

Study on spatial and temporal variation of land use function in the coastal zone

Land use function is the comprehensive embodiment of land use structure, so study the change of land use function can help improving the sustainability and reasonability of land use activities, reducing the unreasonable behavior of land resources.Huanghua City, which is the important ecological fragile area in Hebei Province, is taken as the study area.From the perspective of multifunctional land use, the land use during 2003-2012 is evaluated.And the state of land use function quantitative from the aspects of dynamic variation and spatial differentiation is analyzed.The results show that:1) The total function of land use in Huanghua City shows a rapid upward trend during 2003-2012.From the point of land use function implementation rate, the overall level of land use function in Huanghua City is still in a moderate level of sustainability, which remains to be improved further.The land use function of Huanghua City is developing towards multifunctional trend gradually, but the coordination degree is low.2) The spatial distribution of land use function in Huanghua City shows characteristics of the cluster, which include production function mainly concentrated in the western area away from the beach, the better ecological function area mainly concentrated in the northeast area and the social and economic function areas are mainly located in the middle areas.The results provide references for reasonable use of land use in Huanghua and help achieving the sustainable development of land resource.