基于生态系统服务价值的土地整理对生态连通性的影响——以吉林省大安市土地整理项目为例（英文）

编号 zgly0001584716

文献类型 期刊论文

文献题名 基于生态系统服务价值的土地整理对生态连通性的影响——以吉林省大安市土地整理项目为例（英文）

作者 王军  严慎纯  郭义强  李俊然  孙国庆 

作者单位 KeyLaboratoryofLandConsolidationandRehabilitation  MinistryofLandandResources  SchoolofLandScienceandTechnology  ChinaUniversityofGeosciences  DepartmentofGeosciences  TheUniversityofTulsa 

母体文献 Journal of Geographical Sciences 

年卷期 2015年05期

年份 2015 

分类号 F301.2 

关键词 landconsolidationproject  ecologicalconnectivity  ecosystemservicevalue  landscapepattern  landscapefunction  Da’ancity 

文摘内容 Land consolidation has a profound impact on landscape patterns and ecological functions at various scales through engineering and biological measures. In recent years, China invests more than 100 billion RMB yuan on land consolidation each year. To understand how land consolidation affects landscape patterns and ecosystems, we investigated the ecosystem service value and the ecological connectivity in a consolidated area of Da’an city from 2008 to 2014 using a revised ecological connectivity index. The results indicated that land consolidation has certain negative influences on the ecosystem services in this area. The total ecosystem service value will decrease by nearly 30% in the late stage of consolidation. This decrease is caused by the loss of ecosystem service of the wetland and grassland, despite a sensible increase of cultivated land. In addition, land consolidation could change the ecological connectivity as well as the land use structure. Up to 85% of the entire area will be in low connectivity in the late stage of consolidation, representing a 6.23% increase in the total coverage compared to pre-consolidation. Finally, the different connectivity landscape and their key areas can be identified by the revised ecological connectivity index effectively. This study is helpful to trace out the relationships between landscape pattern and ecological process, and provides insights for ecological planning and designing of land consolidation in this area. We suggest that more attentions should be paid to improve the quality and ecosystem service value per unit area of the landscape, to establish ecological compensation mechanism of wetland losses, and to create the ecological corridors along the least accumulated impendence surface in the key areas during land consolidation.