摘要
[目的]对山东省土地利用变化及其对生态系统服务价值产生的影响进行分析,为区域环境保护和粮食安全提供保障。[方法]运用GIS技术获取山东省1995,2005,2015年土地利用类型数据,结合相关评价模型,对研究区生态服务价值的时空动态演变及其特征进行剖析。[结果](1)山东省土地利用类型主要以耕地为主,1995—2015年,耕地、林地、草地以及未利用地面积减少,建设用地和水域面积持续增加,建设用地的扩张主要由耕地转变而来;(2)1995—2015年,研究区内生态系统服务总价值共减少6.62×109元,变化率为-2.07%。20a间,水文调节的生态服务价值增加迅速,其他单项生态服务价值均呈现为减少的态势;从空间上来看,生态系统服务价值差异较大,表现为鲁东、鲁南地区高,鲁中和鲁西北地区低的空间分布格局,生态增值区范围较小,生态减值区广泛分布且面积增大。(3)山东省生态系统服务价值缺乏弹性,所采用的生态价值系数是可靠的。[结论]今后应着力优化土地利用结构和布局,通过规划等措施综合调控土地利用变化,从而促进山东省生态环境的稳定发展。
[Objective]The land use change and its impact on the ecosystem service value in Shandong Province were analyzed to provide guarantee for the regional environmental protection and food security.[Methods]The data of land use types of Shandong Province in 1995,2005 and 2015 was obtained by using the GIS technology.Then,combined with the relevant evaluation model,the spatial and temporal dynamic evaluation and characteristics of the ecological service values were analyzed in the research area.[Results]①The land use type in Shandong Province were mainly the cultivated land.Areas of cultivated land,forest land,grassland and unused land were all reduced,while the construction land and water area continued to increase during the period from 1995 to 2015,and the construction land was mainly transformed from the cultivated land.②From 1995 to 2015,the total value of the ecosystem service in the research area decreased by 6.62×10 9 Yuan,with a change rate of-2.07%.In those years,the ecological service value of hydrological regulation increased rapidly,while the value of other individual ecological service decreased.Spatially,the value of ecosystem services varied greatly,showing a high spatial distribution in Ludong and Lunan areas,while a low distribution in Luzhong and Luxi areas.The ecological benefited area was small,and the ecological impairment region was widely distributed with an increasing trend.③The value of ecosystem services in Shandong Province was inelastic,and the ecological value coefficient adopted was reliable.[Conclusion]Efforts should be made to optimize the land use structure and layout in the future,and land use change should be comprehensively controlled through planning and other measures,so as to promote the stable development of the ecological environment in Shandong Province.
作者
尹登玉
张全景
翟腾腾
YIN Dengyu;ZHANG Quanjing;ZHAI Tengteng(College of Geography and Tourism,Qufu Normal University,Rizhao,Shandong 276826,China;Land Research Center,Qufu Normal University,Rizhao,Shandong 276826,China)
出处
《水土保持通报》
CSCD
北大核心
2018年第5期134-143,共10页
Bulletin of Soil and Water Conservation
基金
山东省社会科学规划项目"山东省农地流转与新兴城镇化的耦合机制与创新路径研究"(18CSJJ31)
山东省软科学研究计划项目(2014RKB01659)
关键词
土地利用变化
生态服务价值
时空演变
山东省
land use change
ecological service value
spatial-temporal evolution
Shandong Province
