滨海地区三生空间冲突的时空评测及优化

Spatial-temporal evaluation and optimization of spatial conflict in ecological-production-living spaces of coastal region

以浙江宁波市象山县作为研究对象,从土地利用系统的复杂性、脆弱性和稳定性三个方面构建生态风险评价模型,定量评估滨海地区三生空间冲突的时空分异特征,并结合实例查证,探讨其用地空间优化方案。结果表明:2005年至2015年象山县三生空间冲突整体保持良好态势,但呈现逐年逐级冲突增强的趋势;可控等级主要分布于县域西北部及外围边缘海岸带地区,失控等级分布于城镇中心和三生空间交错带;现状复核和实例查证中,人工侵扰、城乡建设与扩张、生境退化将激化空间冲突,生态保护和维持利于空间优化。

We chose Xiangshan County in Ningbo City of Zhejiang Province as our research area,and an ecological risk assessment model was constructed with respect to complexity,vulnerability,and stability of the land-use system.The model was used to measure the spatial and temporal differentiation characteristics of the spatial conflict of ecological-productionliving spaces in Xiangshan County.Then,based on status review and case verification,this study examined the spatial optimization scheme of land use.The results showed that from 2005 to 2015,the spatial conflict of the ecological-productionliving spaces in Xiangshan County was good;however,a trend in escalating conflicts was observed annually.Controllable levels were mainly distributed in the northwest and peripheral coastal areas of Xiangshan County;on the other hand,outof-control levels were distributed in the urban centers and ecological-production-living spaces ecotone.Upon status review and case verification,we determined that artificial intrusion,urban and rural construction and expansion,as well as habitat degradation,would intensify the spatial conflict.Furthermore,ecological protection and maintenance should be conducive to spatial optimization.