摘要:探讨滨海湿地土地利用强度与生态系统服务价值的时空关系，是促进滨海湿地资源合理配置及维持生态系统可持续发展的重要依据。基于辽东湾北部区1985、1993、2002、2014年4期Landsat TM遥感数据，在计算土地利用强度综合指数的基础上，运用地统计学方法及地理加权回归模型探讨土地利用强度与生态系统服务价值的时空耦合关系，结果表明：1）1985-2014年，生态系统服务价值变化显著，其中水域占比最大，滩涂和草地次之。2）研究区单位面积生态系统服务价值在空间上总体呈现由南高北低向西高东低演变的趋势。3）研究区土地利用强度与生态系统服务价值之间整体呈强烈的负相关关系，当土地利用强度增加时，生态系统服务价值降低。4）随着土地利用强度的增加，四种服务类型之间出现以供给服务价值的增加而导致其他服务类型价值减少的权衡关系。



Abstract:Discussing spatial and temporal relationships between land use intensity and the value of ecosystem services in coastal wetlands provides an important foundation to promote the rational allocation of coastal wetland resources and the sustainable development of ecosystems. Based on an equivalent factor method and four periods of Landsat TM remote sensing data of the northern Liaodong Bay (1985, 1993, 2002, and 2014), this paper uses geostatistical methods and a geo-weighted regression model to study the spatial and temporal relationships between land use intensity and the value of ecosystem services based on the calculation of the comprehensive index of land use intensity in the study area. The results showed that: 1) from 1985 to 2014, the value of ecosystem services changed significantly, and the largest value was associated with the water area, followed the beach and grassland areas. Aquaculture provided more and more value, while bare land provided the least. 2) In the study area, the value of ecosystem services per unit area has spatially evolved from high value in the south and low value in the north to high value in the west and low value in the east. The ecological advantages of the southern area gradually weakened and eventually disappeared. 3) There was a strong negative correlation between land use intensity and the value of ecosystem services. As land use intensity increased, the value of ecosystem services decreased. 4) With the increase of land use intensity, there was a trade-off relationship among the four service types, that is the value of other service types decreased due to the increase of supply service value. The correlation between land use intensity and the value of ecosystem services was stronger in the southern part of the study area.





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