Evolution characteristics and coupling relationship between land use and ecosystem services in the Yellow River Delta
In order to explore the response of ecosystem services in the Yellow River Delta under the background of land use change,remote sensing and geographic information technology were used to quantify land use dynamic attitude,land use intensity and ecosystem service value,and the spatio-temporal evolution characteristics of land use and ecosystem service value were analyzed in the research area from 1985 to 2019.The coupling relationship between land use intensity and ecosystem service value was analyzed based on the coupling coordination model.The results showed that,(1)From 1985 to 2019,the area of construction land and water body in the research area showed an increasing trend,while the area of bare land,grassland and cultivated land showed a decreasing trend.The dynamic attitude value of cultivated land was small and the inter-annual change was small,while the dynamic attitude value of water body was large and the inter-annual change was large.The land use intensity in the research area was characterized by the increase of spatial characteristics from coastal to inland.(2)In the southeast coast the grassland area decreased and the ecosystem service showed an weakentrend;in the northwest coast,affected by the increase of water area,the ecosystem service value showed an upward trend.In the inland part of the delta,the ecosystem service value was relatively low due to the increase of construction land area.(3)The coupling coordination between ecosystem service value and land use intensity in the research area showed an increasing trend from 1985 to 2019,the newly added areas of high coordinated development were mainly located in the transition area from inland delta to the coast,and moderate unbalanced development were mainly distributed in the coastal areas.The research provided a reference for high-quality development and resource and environment monitoring in the Yellow River Delta.
Yellow River Deltaland useecosystem servicescoupling coordination